CN104854499A - Anti-banding layer for autostereoscopic display - Google Patents
Anti-banding layer for autostereoscopic display Download PDFInfo
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- CN104854499A CN104854499A CN201380045766.5A CN201380045766A CN104854499A CN 104854499 A CN104854499 A CN 104854499A CN 201380045766 A CN201380045766 A CN 201380045766A CN 104854499 A CN104854499 A CN 104854499A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/0006—Arrays
- G02B3/0037—Arrays characterized by the distribution or form of lenses
- G02B3/005—Arrays characterized by the distribution or form of lenses arranged along a single direction only, e.g. lenticular sheets
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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
- G02B30/27—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 lenticular arrays
Abstract
An autostereoscopic display (140) is provided comprising i) a display panel (142) providing a display output composed of pixels in an array and ii) an optical stack (150) arranged at a display side of the display panel. The optical stack comprises a lenticular means (170) and an anti- banding layer (190). The lenticular means (170) comprises a profiled surface, the profiled surface defining an array of lenticular elements for directing the outputs from respective groups of said pixels in mutually different directions so as to enable a stereoscopic image to be perceived. The anti- banding layer (190) is arranged for effecting a variation in the refraction of light along a periphery (176, 177) of each lenticular element (170). The above optical stack (150) can reduce repeating patterns in autostereoscopic displays and/or the visibility of such repeating patterns to the viewer.
Description
Technical field
The present invention relates to a kind of automatic stereoscopic display device, comprise for providing the display panel of the display translation be made up of the pixel in an array and comprising the Optical stack body (optical stack) of biconvex device at the display side place being arranged in this display panel.The invention still further relates to such a Optical stack body.The invention still further relates to the electronic equipment comprising such automatic stereoscopic display device.The invention still further relates to the method manufacturing such automatic stereoscopic display device.
Background technology
3D display, and the televisor being especially equipped with 3D display, day by day welcome in consumer, because they provide the three-dimensional perception of the degree of depth for beholder.So-called automatic stereoscopic display device provides the three-dimensional perception of the described degree of depth, and wears polaroid glasses or the glasses based on shutter without the need to beholder.For this purpose, employ optical module, such as lenticular lens array (or generally speaking biconvex device), it makes display can send a cone (viewing cone) from each set point 3D display, and the described cone at least comprises left view and the right view of a scene.This to make when this beholder correspondingly locates in the cone to see a different image with every eyes.Some automatic stereoscopic display device (being sometimes referred to as automatic many visuals field display) provides multiple view instead of only a left view and a right view of Same Scene.This allows the multiple positions of beholder's supposition in the cone, that is, face L-R moves in front of the display, still obtains the three-dimensional perception of this scene simultaneously.
By SPIE minutes 2653rd volume of the people such as C.van Berkel in 1996, the 32 to 39 page and the title announced in GB-A-2196166 are the embodiment describing such automatic stereoscopic display device in the file of " Multiview 3D-LCD ".In these embodiments, automatic stereoscopic display device comprises matrix L C (liquid crystal) display panel, and this matrix L C display panel has pixel (display element) row and column and is used as spatial light modulator to be modulated from the light of light source-guide by it.This display panel can be the kind used in other display applications (such as, for presenting the computer display screens of display information with two dimensional form).Biconvex sheet (such as, with molding or the sheets of polymer material form of machining) overlay on display panel outgoing side above, wherein the biconvex element of this display panel---comprises (partly) cylindrical lens elements---and extends in a column direction, wherein each biconvex element is associated with corresponding one group of two or more adjacent row of display element, and extends in the plane parallel with this columns of display elements.In the layout that each lenticule is associated with two row of display element, display panel is actuated to show the combination picture comprising the 2D subimage that two vertically interlock, wherein described two images of the row replaced display of display element, and the display element in often arranging provides the vertical fragment (slice) of corresponding 2D (son) image.This biconvex sheet is by these two fragments and the left eye and the right eye that are directed to the beholder in the front of described from the respective segments be associated with other lenticules, and make the subimage by having suitable binocular parallax, beholder perceives single stereo-picture.In other various visual angles are arranged, wherein the Adjacent display elements of each lenticule in the row direction with one group more than two is associated, and the corresponding row of display element often in group are suitably arranged the vertical fragment providing self-corresponding 2-D (son) image, then along with the head of beholder moves, the different three-dimensional view of a series of continuous print is perceived for creating such as look-around impression (look-around impression).
In view of biconvex element needs to aim at exactly with display pixel, traditionally, lenticular screens is arranged on display panel in a permanent fashion, the position of biconvex element is fixed about pel array.
The automatic stereoscopic display device of mentioned kind can be used for multiple application, such as, in family or portable entertainment, imaging of medical and computer-aided design (CAD) (CAD).
Preferably, design automatic stereoscopic display device by this way: when beholder watches automatic stereoscopic display device, the structure of the pixel be combined with the structure of biconvex device and/or other optical elements can not cause beholder clearly to notice (repetition) pattern.
The embodiment of such pattern is so-called bandization effect (banding effect).Bandization effect is caused as follows by biconvex device at least in part.(and therefore pixel) is completely not adjacent because the sub-pixel of display panel, so there is a region not sending or send any light hardly between the sub-pixels.This region is called as black matrix or buffer zone.If beholder moves along automatic stereoscopic display device, different sub-pixels is visible, forms a view together.But alternately seen after the buffer zone between sub-pixel, this causes described bandization effect.Intuitively, bandization can be understood to interactional moire effect (moir é effect) between the grid (grid) that formed by buffer zone and the grid formed by biconvex device.
Summary of the invention
Inventor has realized that for the current design of automatic stereoscopic display device and solution be not still gratifying, because user is when watching automatic stereoscopic display device, usually clearly can notice those patterns such as caused by above-mentioned band effect.
An object of the present invention is the so remarkable pattern in minimizing automatic stereoscopic display device and/or reduce so remarkable pattern to the visuality of beholder.
A first aspect of the present invention provides a kind of automatic stereoscopic display device, comprises i) display panel, provides the display translation be made up of the pixel in an array; And ii) Optical stack body, be disposed in the display side place of this display panel, this Optical stack body comprises:
-biconvex device, comprise a molded surface (profiled surface), this molded surface limits a biconvex element arrays, for booting up the output of the described pixel from correspondence group in mutually different sides, to enable stereo-picture perceived; And
-anti-bandization layer, the anaclasis be arranged to for generation of the periphery along each biconvex element changes.
Define some embodiments in the dependent claims.
An Optical stack body according to a first aspect of the invention, comprises such as originally known from automatic stereoscopic display device field biconvex device.According to the present invention, this Optical stack body comprises the anti-bandization layer producing and change along the anaclasis of the periphery of each biconvex element.Therefore, the light guided by biconvex element (again) differently reflects along the periphery of this biconvex element.Have been found that the such change in refraction along the periphery of each biconvex element causes remarkable pattern (those patterns such as caused from bandization effect) to beholder not so.Advantageously, this automatic stereoscopic display device provides better picture quality to beholder.
In one embodiment, this anti-bandization layer is disposed on the molded surface of this biconvex device, this anti-bandization layer comprises main stor(e)y and the adhesive layer for this anti-bandization layer being adhered to this molded surface, and this anti-bandization layer is disposed on this molded surface, depression between the adjacent biconvex element simultaneously not contacting in (keep clear of) described biconvex element to make this adhesive layer each outshot adhered in described biconvex element, so that the adjacent biconvex element in described biconvex element and form gap between this anti-bandization layer.
Therefore, this anti-bandization layer is attached to this biconvex device discontinuously, that is, do not contacted the part of the depression between the adjacent biconvex element adjoined in described biconvex element by each outshot adhered in described biconvex element simultaneously.The discontinuous interface be attached between anti-bandization layer and biconvex element like this provides the refraction of the first kind, wherein the refraction of this first kind is determined by the refractive index of biconvex element and anti-band layer, and the interface between biconvex element and this gap provides the refraction of Second Type, wherein the refraction of this Second Type is determined by the refractive index of biconvex element with the medium (such as, air) of this inner space.This embodiment provides a kind of effective means producing and change along the anaclasis of the periphery of each biconvex element, namely by the above-mentioned mode anti-bandization layer being attached to discontinuously biconvex device.Therefore, the optical characteristics revising anti-bandization layer self can not be needed to produce described anaclasis change.
Another benefit is, can by anti-bandization layer being pressed into the discontinuous attachment having and the surperficial biconvex device of pressing realizes expediently this type, because when pressing like this, first anti-band layer is attached to the outshot of each biconvex element.Then anti-bandization layer can be pressed into press pressure on biconvex device (such as, by by described pressure limitation to maximal value) and generate and/or maintain gap between anti-bandization layer and biconvex device by controlling pressing surface.
In another embodiment, this anti-bandization layer is arranged to the Part II simultaneously not contacting each biconvex element for the Part I by being attached to each biconvex element and produces this anaclasis change.This embodiment also establishes the discontinuous attachment of anti-bandization layer to each biconvex element, thus provides the effective means that a kind of generation changes along the anaclasis of the periphery of each biconvex element.
In another embodiment, this Part I is around the optical axial of each biconvex element core placed in the middle, and this Part II is the peripheral part at the side place at this core.The most outstanding part of the core of each biconvex element normally biconvex element.Therefore, this discontinuous attachment can be realized expediently by being pressed into by anti-bandization layer to have on the surperficial biconvex device of pressing.
In another embodiment, this anti-bandization layer is arranged to for one of at least producing this anaclasis change based on following: the changes in material of this anti-bandization layer, the variation in thickness of this anti-bandization layer, this anti-bandization layer local deformation, and this anti-bandization layer locally stands mechanical stress.For provide anti-bandization layer to biconvex device discontinuous attachment additionally or alternatively, anti-bandization layer self can be suitable for setting up anaclasis change.Aforementioned arrangement is suitable for setting up described anaclasis change well.
In another embodiment, this Optical stack body also comprises top layer, this top layer is disposed on this molded surface, to avoid substantially contacting with this molded surface, this top layer comprises prone surface, this prone surface is towards this display panel, and this anti-bandization layer is disposed on this prone surface of this top layer, and this anti-bandization layer comprises main stor(e)y and the adhesive layer for this anti-bandization layer being adhered to this prone surface.This embodiment provides a kind of alternative be included in by anti-bandization layer in this automatic stereoscopic display device, namely by anti-bandization layer being attached to the top layer of automatic stereoscopic display device, such as protecting top layer, instead of it is directly attached to biconvex device.
Another aspect provides a kind of for anti-bandization layer being attached or being applied to the method for biconvex device, wherein this biconvex device comprises molded surface, wherein this molded surface limits a biconvex element arrays, wherein this anti-bandization layer comprises main stor(e)y and the adhesive layer for this anti-bandization layer being adhered to this molded surface, and wherein the method comprises on the biconvex device that to be pressed into by this anti-bandization layer and to have pressing surface.Anti-bandization layer is pressed into have pressing surface biconvex device on be a kind of mode easily anti-bandization layer being attached to discontinuously biconvex device, because first anti-bandization layer will be attached to the outshot of each biconvex element, do not contact the depression between the adjacent biconvex element in described biconvex element at first simultaneously.
In one embodiment, the method also comprises:
-the anti-bandization layer with this adhesive layer is pressed into there is pressing surface biconvex device on; And
-during this pressing, control press pressure, so that the gap that the recess in the molded surface between the adjacent biconvex element in described biconvex element generates and/or maintains between this anti-bandization layer and this biconvex device.
By controlling press pressure, can avoid such as by being discharged by the whole air between biconvex device and anti-band layer, anti-bandization layer is seamlessly applied to biconvex device.This has the biconvex device on pressing surface being applied to by anti-bandization layer, if can occur when applying too large pressure.
In another embodiment, anti-bandization layer is flexible layer, and the method also comprises and being pressed on biconvex device by the anti-bandization layer with the pressing of rigidity (that is, non-deformable) substantially surface.By use non-can the pressing surface of deformation, can avoid such as by being discharged by the whole air between biconvex device and anti-band layer, the anti-bandization layer of flexibility is seamlessly applied to biconvex device.
Accompanying drawing explanation
By referring to the embodiment described hereinafter, these and other aspects of the present invention will become obvious and will be illustrated.In the accompanying drawings,
Fig. 1 illustrates content for allowing to three-dimensionally watch on it display and does not need the automatic stereoscopic display device of user's wearing spectacles;
Fig. 2 a illustrates the viewgraph of cross-section of the Optical stack body of automatic stereoscopic display device, and this Optical stack body comprises anti-bandization layer and biconvex device;
Fig. 2 b illustrates the zoomed-in view of anti-bandization layer and biconvex device;
Fig. 3 illustrates the viewgraph of cross-section of another Optical stack body that can be disposed in the photogenerated part of automatic stereoscopic display device;
Fig. 4 illustrates a biconvex element and illustrates the anti-bandization layer produced along the variations in refractive index of the periphery of biconvex element.
It should be noted that the item in various figures with same reference numbers has identical architectural feature and identical function, or identical signal.When explaining function and/or the structure of such item, there is no need to carry out repetition of explanation to it in a specific embodiment.
Embodiment
Fig. 1 shows a kind of automatic stereoscopic display device 140, and this automatic stereoscopic display device 140 makes user can three-dimensionally watch the content that it shows when not needing wearing spectacles.Automatic stereoscopic display device 140 comprises photogenerated part 142, and this photogenerated part 142 is made up of the array of light-emitting component or optical modulation element usually.Such as, photogenerated part 142 can be formed by display panel (such as, originally known liquid crystal display (LCD) panel or organic light emitting display (OLED) panel).Automatic stereoscopic display device 140 also comprises Optical stack body 150, and this Optical stack body 150 comprises biconvex device, for the light generated by photogenerated part 142 is rebooted different directions.Photogenerated part 142 can be arranged suitably and be cooperated with biconvex device, and a series of view (such as, view 0-5) is sent from automatic stereoscopic display device 140 with the cone 104 and the form of the cone 102,106 that repeats.
Fig. 1 also show be connected to automatic stereoscopic display device 140, for providing the video-stream processor 120 of a series of images 122 to this automatic stereoscopic display device 140.Automatic stereoscopic display device 140 can be arranged to for being adjacent to send described a series of images 122 with the form of described a series of view 0-5.Therefore, when beholder watches one in described a series of view 0-5, beholder is by corresponding in a series of images described in perception 122.Described a series of images 122 may correspond in a camera, described camera is included in the scene in 3D rendering data towards one, and from left to right moves relative to described scene before described scene.Therefore, to be positioned in the cone 104 and the beholder 110 of the different view 0,1 of in a series of view described in perception two obtains the stereos copic viewing of described scene.
Notice, the automatic stereoscopic display device of above-mentioned configuration and process a series of images 122 be shown as described a series of view 104 mode they itself be known.Such as, US 6,064,424 discloses a kind of automatic stereo display instrument with biconvex sheet as biconvex device 150, and discusses the relation between display element (that is, light-emitting component or optical modulation element) and the biconvex element of biconvex sheet.
Hereinafter, will be understood to refer to direction or the surface of the layer deviating from photogenerated part 142, that is, towards direction or the surface of beholder to quoting of " above ", " upwards " etc.In addition, by being understood to, the direction towards the layer of photogenerated part 142 or surface are referred to quoting of " below ", " downwards " etc.
Fig. 2 a shows the viewgraph of cross-section of the Optical stack body 150 that can be disposed in the photogenerated part 142 of automatic stereoscopic display device 140.Optical stack body 150 generally includes wall 160.Wall 160 is transparent optical layer, for enabling the light generated by the photogenerated part 142 be positioned at below wall 160 substantially without hindrance through this wall, is not namely rebooted or scattering by this light substantially.Notice, such wall was known originally, and was normally used for spaced apart to biconvex device 170 and photogenerated part 142.
Optical stack body 150 also comprises biconvex device 170, and wherein this biconvex device 170 is disposed in above wall 160, namely on wall 160, relative with photogenerated part 142 side.Alternatively, but not too typically, biconvex device 170 can be placed directly above photogenerated part 142.In this particular embodiment, biconvex device 170 is made up of biconvex sheet, this biconvex sheet comprises towards upper shaping (profiled) surface, this molded surface limits a biconvex element arrays, for booting up the output of the respective sets from described pixel in mutually different sides, to enable stereo-picture perceived.In addition, in this particular embodiment, this array is the one-dimensional array formed by a series of cylindrical lens elements be arranged in parallel.But biconvex device 170 also can take any other suitable form, such as, comprise multiple multifaceted lens element, array is two-dimensional array etc.Notice, such biconvex device 170 was known originally.
Notice, the xsect of the Optical stack body shown in Fig. 2 a is selected as the length being essentially perpendicular to cylindrical elements.Therefore, xsect is got in the bottom that described cylindrical lens elements is shown as to be parallel to cylindrical lens elements.
Optical stack body 150 also comprises anti-bandization layer 190, and anti-bandization layer 190 is disposed in above biconvex device 170, namely biconvex device, the side place that deviates from photogenerated part 142.In the embodiment of Fig. 2 a, anti-bandization layer 190 is made up of the main stor(e)y 192 being provided with adhesive layer 194.Adhesive layer 194 is arranged on the prone side (that is, main stor(e)y 192, towards the side of biconvex device 170) of main stor(e)y 192.Anti-bandization layer 190 is shown as and uses the adhesion characteristics of adhesive layer 194 to be attached to biconvex device 170 at least in part.Fig. 2 a also illustrates antireflection (AR) coating towards upper side (that is, deviating from the side of biconvex device 170) being applied to anti-bandization layer 190.Such AR coating is optional.
Fig. 2 b illustrates the zoomed-in view of anti-bandization layer 190 and biconvex device 170.This zoomed-in view is indicated in fig. 2 a by dashed rectangle INS.Therefore, Fig. 2 b shows a part for biconvex device 170, adhesive layer 194 and main stor(e)y 192.As appreciable in figure 2b, anti-bandization layer 190 is attached to biconvex device 170 like this, to make to form gap 180 between biconvex device 170 and anti-bandization layer 190.Particularly, gap 180 is formed by the depression between the adjacent biconvex element of two in biconvex element and the anti-bandization layer 190 that covers described depression, thus sets up gap 180.Although invisible in figure 2b, if will be appreciated that biconvex element is elongated, then this gap can extend along elongated biconvex element, that is, can have similar length.As under type, gap 180 can also be described.The biconvex element of biconvex device 170 forms " wavy " pattern along the xsect shown in Fig. 2 a and Fig. 2 b.Anti-bandization layer 190 is attached at above biconvex device 170, it is adhered at the top place (that is, in the teat office of each biconvex element) of " wavy " pattern and therefore contacts biconvex device 170.Meanwhile, anti-bandization layer 190 does not adhere in the bottom (that is, the aforementioned recess between two adjacent biconvex elements) of " wavy " pattern and does not therefore contact biconvex device 170.In other words, adhesive layer 194 only adheres to along a part for the periphery of each biconvex element and therefore contacts this each biconvex element.Therefore, gap 180 is formed on another part place of each biconvex element, is not attached to biconvex element at this another part place adhesive layer.In other words, biconvex device 170 can be considered to form multiple parallel ridge (ridge) directly and medial concavity (hollow), wherein anti-bandization layer 190 is attached to described ridge by means of adhesive layer 194 and covers described recess simultaneously, to form multiple gap 180.
Gap 180 can be clearance 180, that is, can be filled air.Clearance 180 can form air bag, and wherein term " air bag " refers generally to the air that is such as trapped in adhesion technique between adjacent layer.Generally speaking, such air bag can be considered to less desirable, that is, may expect the appearance reducing them.But, at this, gap 180 is on purpose set.Another kind of medium also can be filled in this gap, such as, and another kind of gas, liquid, polymkeric substance etc.
Generally speaking, adhesive layer 194 can be made up of deformable material (such as, deformable glue, gel or have the other materials of adhesion characteristics).So, as also illustrated in Fig. 2 b, when anti-bandization layer 190 is applied to biconvex device 170, adhesive layer 194 can be out of shape to a certain extent.Can to guarantee between aforementioned contact portions place biconvex device 170 with anti-bandization layer 190 seamless contacts for this.Adhesive layer 194 can comprise and postpone adhesive glue stick, and this tackifier can temporarily allow to reorientate to correct placement error during applying.Adhesive layer 194 is optically transparent substantially, because it can pass light.Notice, this is applicable to the every other layer of Optical stack body 150, that is, be all optically transparent.Notice, term " optical clear " does not imply other optical characteristics.Such as, although be optically transparent, adhesive layer 194 can also be diffusion (diffuse), because it can by the light scattering through adhesive layer 194.
Generally speaking, notice, except adhesive layer 194, it may occur to persons skilled in the art that the substitutable layer with similar functions.Such as, non-adhesive layer 194 substantially can be set, comprise such as deformable gel or not there is the other materials of essence adhesion characteristics.Generally speaking described layer can be contact layer 194, that is, have tackifier characteristic or non-adhesive characteristic.When having non-adhesive characteristic, anti-bandization layer 190 such as can mechanically be attached to biconvex device 170 at the side place of this layer, or by pressing against biconvex device 170 by the transparent top-layer be arranged in above anti-bandization layer 190 and being attached to biconvex device 170.
Main stor(e)y 192 can be made up of polymer film or solid matter (such as, glass).Anti-bandization layer 190 (that is, the combination of main stor(e)y 192 and adhesive layer 194) can be made up of from gluing (viscosity) diaphragm (such as, for cover and protect display screen, window, book cover etc.).Another embodiment is polarisation paper tinsel as used in LCD or polarizing layer.The film of such type is commercially available on sheet or roller.The adhesive layer that can comprise water base adhesive or oil base glue from gluing diaphragm like this.Diaphragm can be vinyl (PVC), polyester, polypropylene etc.Anti-bandization layer 190 can also be made up of a part for the Optical stack body of LCD.Such as, biconvex device 170 can be integrated between the colour filter of LCD and polarizing layer, and wherein, such as this polarizing layer forms anti-bandization layer 190.Generally speaking, anti-bandization layer 190 can have the thickness of below millimeter scope, the order of magnitude of such as 50 microns, 100 microns or 200 microns.But this not limits, because also other thickness can be imagined.
In the embodiment of Fig. 2 a and Fig. 2 b, anti-bandization layer 190 can by the forming from gluing diaphragm of thickness with about 200 microns.
Main stor(e)y 192 can be diffusion main stor(e)y 192.At this, term " diffusion " refers to optically transparent, but is arranged to for making light scattering to a certain extent.Therefore, the light generated by photogenerated part 142 is scattered, thus the image with lower resolution (sharp) shown in being provided on automatic stereoscopic display device 140 to beholder.Alternatively, main stor(e)y 192 can be non-diffuse main stor(e)y 192 substantially, that is, avoid the described scattering of light.
Anti-bandization layer 190 can be applied to biconvex device 170 as following.Generally speaking, biconvex device 170 such as may be applied to photogenerated part 142 via wall 160.This can provide a stable substrate, and anti-band layer 190 can controllably be applied in described stable substrate.Such as, anti-bandization layer 190 can be applied to the display panel manufactured at least in part of automatic stereoscopic display device 140.Alternatively, Optical stack body 150 can by preproduction before being applied to photogenerated part 142 (such as, LCD).Such as, Optical stack body 150 may be produced in a technique, and in the process, anti-bandization layer 190 is attached to biconvex device 170, and after this Optical stack body 150 is only applied to photogenerated part 142.
Anti-bandization layer 190 be flexible layer (such as; it is film; such as from gluing diaphragm) when, rigidity (that is, non-deformable) substantially can be had press on surperficial biconvex device and apply anti-bandization layer 190 by anti-bandization layer 190 is pressed into.This pressing surface can be flat pressing surface, and can provide this pressing surface by such as roller, and this roller rolls anti-bandization layer 190 is pressed against biconvex device 170 on anti-bandization layer 190.Pressure can be controlled to guarantee that the gap 180 of aforementioned type generates between anti-bandization layer 190 and biconvex device 170.Therefore, anti-bandization layer 190 can be avoided seamlessly to be applied to biconvex device 170, and therefore, can avoid such as the whole air between biconvex device 170 and anti-bandization layer being discharged.Otherwise this is deformable on pressing surface and/or can occurs when applying anti-bandization layer 190 and applying too large pressure.When anti-bandization layer 190 is rigid layer (such as, aforesaid solid glass substrate), this pressing surface also can be flexible or deformable.
Fig. 3 illustrates the viewgraph of cross-section of another Optical stack body 152 that can be disposed in the photogenerated part 142 of automatic stereoscopic display device 140.The biconvex device 170 that Optical stack body 152 as the Optical stack body 150, Fig. 3 of Fig. 2 a and Fig. 2 b comprises wall 160 and is arranged in above wall 160.Optical stack body 152 also comprises top layer 200.Top layer 200 is optically transparent and can be configured for protecting such as biconvex device 170 from the protective seam damaged.In addition, top layer 200 is used as the substrate of anti-bandization layer 190, because anti-bandization layer 190 is applied to top layer 200.Particularly, adhesive layer 194 is applied to the prone side of top layer 200, thus anti-bandization layer 190 is integrally attached to top layer 200.Top layer 200 is mechanically remained on apart from biconvex device 170 1 segment distance place, such as, is mechanically attached to described distance by the periphery of biconvex device 170.So, gap 182 is formed between multiple or whole biconvex element of biconvex device 170 and anti-band layer 190.Gap 182 can be clearance 182.
Notice, biconvex device 170 may be oriented to and makes molded surface deviate from photogenerated part 142, that is, as the situation in Fig. 2 a, 2b and Fig. 3.But biconvex device 170 also may be oriented to and makes this molded surface towards photogenerated part 142.Be also noted that in the latter case, can provide automatic stereo viewing function, wherein those skilled in the art can provide the suitable Optical stack body comprising biconvex device 170.In the case, anti-bandization layer 190 can be applied in many ways.Such as, anti-bandization layer 190 can be attached to wall 160, make the adhesive layer 140 of anti-bandization layer 190 towards upper, and the adhesion characteristics of adhesive layer 194 can be used at least in part to be arranged on anti-bandization layer 190 by biconvex device 170, wherein this molded surface faces down.Contact between anti-bandization layer 190 and molded surface can be similar with contacting of discussing with reference to Fig. 2 a and Fig. 2 b, and such as, adhesive layer 194 only can adhere to described each biconvex element along a part for each biconvex component periphery.
Inventor has determined that the effect in the Optical stack body comprising anti-bandization layer.In its understanding, can arrange anti-bandization layer, this anti-bandization layer is adhered to biconvex device, and when being adhered to biconvex device, this anti-bandization layer causes the change of the refractive index at the periphery place at each biconvex element.Herein, term " periphery " refers to the outer boundary of each biconvex element, and the light from photogenerated part 142 sends or coupling output from this outer boundary after biconvex element internal is rebooted.Can realize this change by different way, as explained further with reference to single biconvex element as shown in Figure 4, this single biconvex element is exemplary for multiple or whole biconvex elements of biconvex device 170.
Such as, anti-bandization layer only can be attached to biconvex device discontinuously, such as, as shown in Fig. 2 a and Fig. 2 b.This anti-bandization layer can be applied to the Part I of biconvex element, therefore the refraction of the first kind is produced in Part I 175 interface be between this anti-bandization layer and this biconvex element, wherein the refraction of this first kind is determined by the refractive index of biconvex element (that is, its material) and anti-bandization layer.In addition, another part 176,177 of biconvex element can adjoin a gap (such as, clearance), and this gap can be formed by the anti-bandization layer be attached discontinuously in the foregoing manner.This interface between biconvex element and this gap produces the refraction of Second Type, and wherein the refraction of this Second Type is determined by the refractive index of the medium (such as, air) of biconvex element and inner space.This gap can also be filled another kind of medium (such as, another kind of gas, liquid, polymkeric substance etc.).Medium can be selected suitably according to refractive index and therefore allow to adjust the refraction of Second Type.
This change can be symmetrical substantially about the optical center axis 178 of biconvex element, wherein, the light such as sent from the core 175 of periphery stands the refraction of the first kind, and stands the refraction of Second Type from the light that the peripheral part 176,177 of the either side of this core sends.
Can also obtain aforementioned change in refraction by a kind of so anti-bandization layer, this anti-bandization layer is applied to biconvex device substantially continuously, but self comprises the change of refractive index, such as, due to changes in material or due to local deformation, stands mechanical stress etc.Such as, the thickness of the adhesive layer of anti-bandization layer can change, and such as, the recess between adjacent biconvex element is thicker and thinner at the top place of each biconvex element.Alternatively or additionally, except refraction or refractive index, this change can be the change of optical property.Such as, but adhesive layer optically transparent diffusion to a certain extent.The degree of diffusion can depend on the thickness of adhesive layer.Can by anti-bandization layer being applied to biconvex device to make the recess of this adhesive layer between adjacent biconvex element thicker and in the thinner change obtaining diffusion in the top place of each biconvex element.Other optical characteristics can be expected equally.As the alternative of successive layers, anti-band layer can be made up of the local coatings of the part being applied to each biconvex element.
Other embodiments of the present invention are described in clause below.
Clause 1. automatic stereoscopic display device, comprises i) display panel, provides the display translation be made up of the pixel in an array; And ii) Optical stack body, be disposed in the display side place of this display panel, this Optical stack body comprises:
-biconvex device; And
-anti-bandization layer.
The automatic stereoscopic display device of clause 2. according to clause 1, wherein:
-this biconvex device comprises a molded surface, and this molded surface limits a biconvex element arrays, for booting up the output of the described pixel from correspondence group in mutually different sides, to enable stereo-picture perceived; And
-this anti-bandization layer is disposed on the molded surface of this biconvex device, this anti-bandization layer comprises main stor(e)y and the adhesive layer for this anti-bandization layer being adhered to this molded surface, wherein this anti-bandization layer is disposed on this molded surface, depression between the adjacent biconvex element simultaneously not contacting in described biconvex element to make this adhesive layer each outshot adhered in described biconvex element, so that the adjacent biconvex element in described biconvex element and form gap between this anti-bandization layer.
The automatic stereoscopic display device of clause 3. according to clause 1, wherein:
-this biconvex device comprises molded surface, and this molded surface limits a biconvex element arrays, for booting up the output of the described pixel from correspondence group in mutually different sides, to enable stereo-picture perceived;
-this Optical stack body also comprises the top layer be disposed on this molded surface, to avoid substantially contacting with this molded surface, this top layer comprises prone surface; And
-this anti-bandization layer is disposed on the prone surface of this top layer, and this anti-bandization layer comprises main stor(e)y and the adhesive layer for this anti-bandization layer being adhered to this prone surface.
The automatic stereoscopic display device of clause 4. according to fund 1, on wherein this anti-bandization layer is disposed according to Fig. 2 a or Fig. 3 biconvex device or on.
The automatic stereoscopic display device of clause 5. according to clause 1, wherein:
-this biconvex device comprises molded surface, and this molded surface limits a biconvex element arrays, for booting up the output of the described pixel from correspondence group in mutually different sides, to enable stereo-picture perceived;
-this anti-bandization layer is disposed on the molded surface of this biconvex device, and the anaclasis that this anti-bandization layer is arranged to for generation of the periphery place of each biconvex element changes (or another changes in optical properties).
The automatic stereoscopic display device of clause 6. according to clause 5, wherein this anti-bandization layer is arranged to the Part II simultaneously not contacting each biconvex element for the Part I by being attached to each biconvex element and produces anaclasis change (or other changes in optical properties).
The automatic stereoscopic display device of clause 7. according to clause 6, wherein this Part I is around the optical axial of each lens element core placed in the middle, and wherein this Part II is the peripheral part at the side place at this core.
The automatic stereoscopic display device of clause 8. according to clause 5, wherein this anti-bandization layer is arranged to for one of at least producing this anaclasis change (or other changes in optical properties) based on following: the changes in material of this anti-bandization layer, the variation in thickness of this anti-bandization layer, this anti-bandization layer local deformation, and this anti-bandization layer locally stands mechanical stress.
Clause 9. electronic equipment, comprises the automatic stereoscopic display device according to any one of clause 1-8.
The Optical stack body of clause 10. according to any one of clause 1-8.
Clause 11. is for being attached to anti-bandization filtrator or being applied to the method for biconvex device, and the method comprises on the biconvex device that to be pressed into by anti-bandization layer and to have pressing surface.
The method of clause 12. according to clause 11, wherein this biconvex device comprises molded surface, this molded surface limits a biconvex element arrays, and wherein this anti-bandization layer comprises main stor(e)y and the adhesive layer for this anti-bandization layer being adhered to this molded surface, and wherein the method comprises:
-the anti-bandization layer with adhesive layer is pressed into there is pressing surface biconvex device on; And
-during this pressing, control press pressure, so that the gap that the recess in the molded surface between the adjacent biconvex element in described biconvex element generates and/or maintains between this anti-bandization layer and this biconvex device.
The method of clause 13. according to clause 12, wherein this anti-bandization layer is flexible layer, and wherein the method also comprises and being pressed on this biconvex device by the anti-bandization layer with the pressing of rigidity (that is, non-deformable) substantially surface.
Clause 14. manufactures the method for Optical stack body, comprises the method according to any one of clause 11-13.
Clause 15. manufactures the method for automatic stereoscopic display device, comprises the method according to any one of clause 11-14.
It should be noted that above-mentioned embodiment illustrates but not restriction the present invention, and those skilled in the art can design many alternate embodiment.
In detail in the claims, any reference symbol be placed between bracket should not be interpreted as limiting claim.Verb " comprises " and the existence of element except those elements of stating in claim and step or step is not got rid of in its paradigmatic use.Article " one (a) " before element or " one (an) " do not get rid of the existence of multiple such element.Can by means of comprise some different elements hardware and by means of the computer-implemented the present invention programmed suitably.In the equipment claim listing some devices, several in these devices can be embodied by same hardware branch.Quote this fact of some measure in mutually different dependent claims and do not represent that the combination of these measures can not be advantageously used.
Claims (13)
1. automatic stereoscopic display device (140), comprises an i) display panel (142), provides the display translation be made up of the pixel in an array; And ii) an Optical stack body (150,152), be disposed in a display side place of this display panel, this Optical stack body comprises:
-one biconvex device (170), comprises a molded surface, and this molded surface limits a biconvex element arrays, for booting up the output of the described pixel from correspondence group in mutually different sides, to enable stereo-picture perceived; And
-one anti-bandization layer (190), the anaclasis be arranged to for generation of the periphery (176,177) along each biconvex element changes.
2. automatic stereoscopic display device according to claim 1 (140), wherein this anti-bandization layer (190) is disposed on this molded surface of this biconvex device, wherein this anti-bandization layer comprises a main stor(e)y (192) and one for this anti-bandization layer being adhered to the adhesive layer (194) of this molded surface, and wherein this anti-bandization layer is disposed on this molded surface, depression between the adjacent biconvex element simultaneously not contacting in described biconvex element to make this adhesive layer each outshot adhered in described biconvex element, so that the adjacent biconvex element in described biconvex element and form a gap (180) between this anti-bandization layer.
3. automatic stereoscopic display device according to claim 1 (140), wherein this anti-bandization layer (190) is arranged to the Part II (176,177) simultaneously not contacting each biconvex element for the Part I (175) by being attached to each biconvex element (170) and produces this anaclasis change.
4. automatic stereoscopic display device according to claim 3 (140), wherein this Part I (175) is around the optical axial (178) of each biconvex element (170) core placed in the middle, and wherein this Part II (176,177) is the peripheral part at the side place at this core.
5. automatic stereoscopic display device according to claim 1 (140), wherein this anti-bandization layer (190) is arranged to for one of at least producing this anaclasis change based on following: the changes in material of this anti-bandization layer, the variation in thickness of this anti-bandization layer, this anti-bandization layer local deformation, and this anti-bandization layer locally stands mechanical stress.
6. automatic stereoscopic display device according to claim 1 (140), wherein this Optical stack body (152) also comprises a top layer (200), this top layer (200) is disposed on this molded surface to avoid substantially contacting with this molded surface, wherein this top layer comprises a prone surface, this prone surface is towards this display panel (142), wherein this anti-bandization layer (190) is disposed on this prone surface of this top layer, and wherein this anti-bandization layer comprises a main stor(e)y (192) and one for this anti-bandization layer being adhered to the adhesive layer (194) on this prone surface.
7. electronic equipment, comprises the automatic stereoscopic display device (140) according to any one of claim 1-6.
8. the Optical stack body (150,152) according to any one of claim 1-6.
9. for anti-bandization layer being attached or being applied to the method for biconvex device, wherein this biconvex device comprises a molded surface, wherein this molded surface limits a biconvex element arrays, wherein this anti-bandization layer comprises a main stor(e)y and one for this anti-bandization layer being adhered to the adhesive layer of this molded surface, and wherein the method comprises on the biconvex device that to be pressed into by this anti-bandization layer and to have a pressing surface.
10. method according to claim 9, also comprises:
-the anti-bandization layer with this adhesive layer is pressed into has on the biconvex device on this pressing surface; And
-during this pressing, control press pressure, so that the gap that the recess in the molded surface between the adjacent biconvex element in described biconvex element generates and/or maintains between this anti-bandization layer and this biconvex device.
11. methods according to claim 10, wherein this anti-bandization layer is a flexible layer, and wherein the method also comprise by have one substantially rigidity and non-deformable pressing surface anti-bandization layer be pressed on this biconvex device.
The method of 12. manufacture Optical stack bodies, comprises the method according to any one of claim 9-11.
The method of 13. manufacture automatic stereoscopic display devices, comprises the method according to any one of claim 9-11.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP12182457.7 | 2012-08-30 | ||
| EP12182457 | 2012-08-30 | ||
| PCT/EP2013/067301 WO2014033010A1 (en) | 2012-08-30 | 2013-08-20 | Anti-banding layer for autostereoscopic display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104854499A true CN104854499A (en) | 2015-08-19 |
Family
ID=46826266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380045766.5A Pending CN104854499A (en) | 2012-08-30 | 2013-08-20 | Anti-banding layer for autostereoscopic display |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP2015534651A (en) |
| KR (1) | KR20150048851A (en) |
| CN (1) | CN104854499A (en) |
| TW (1) | TWI598635B (en) |
| WO (1) | WO2014033010A1 (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2014033010A1 (en) | 2014-03-06 |
| JP2015534651A (en) | 2015-12-03 |
| KR20150048851A (en) | 2015-05-07 |
| TWI598635B (en) | 2017-09-11 |
| TW201413294A (en) | 2014-04-01 |
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Application publication date: 20150819 |