CN102859416B - Stereoscopic image display - Google Patents
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- CN102859416B CN102859416B CN201180019145.0A CN201180019145A CN102859416B CN 102859416 B CN102859416 B CN 102859416B CN 201180019145 A CN201180019145 A CN 201180019145A CN 102859416 B CN102859416 B CN 102859416B
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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
- G02B30/22—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 stereoscopic type
- G02B30/25—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 stereoscopic type using polarisation techniques
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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
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3083—Birefringent or phase retarding elements
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
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- Crystallography & Structural Chemistry (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
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- Stereoscopic And Panoramic Photography (AREA)
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Abstract
The present invention can provide a kind of stereoscopic image display, a kind of optical filter for stereoscopic image display, for watching the polaroid glasses of stereo-picture or a kind of method improving stereo image quality, described stereoscopic image display is prevented from crosstalk when showing stereo-picture or visual angle reduces, and improve picture quality (such as, contrast).
Description
Technical field
A kind of a kind of a kind of method that the present invention relates to stereoscopic image display, optical filter for stereoscopic image display, glasses and quality for improving stereo-picture for watching stereo-picture.
Background technology
Stereoscopic image display is a kind of by this display, and spectators can dimensionally watch the display of shown object.
Stereoscopic image display can be divided into goggle type display and glasses-free escope. Additionally, described glasses type can be divided into polaroid glasses type and LC shutter glass, and anophthalmia mirror-type can be divided into eyes/various visual angles stereopsis vision difference type, volume type or holographic etc.
Summary of the invention
Technical problem
The purpose of the present invention includes providing a kind of a kind of a kind of method of stereoscopic image display, optical filter for stereoscopic image display, glasses and quality for improving stereo-picture for watching stereo-picture.
Technical scheme
The present invention relates to a kind of stereoscopic image display, comprising: image display part, described image display part can produce the picture signal including the image light for right eye and the image light for left eye, then they can also be sent to viewer side; And phase shift films, described phase shift films has a phase contrast of thickness direction, and arranges it and make the picture signal transmitted from described image display part according to thickness direction through described phase shift films, can be then transmitted to viewer side.
Will be explained below described stereoscopic image display.
In this manual, the term that uses when defining angle (such as, vertically, level, perpendicular or parallel) represents generally vertical in the scope not damaging required effect, level, perpendicular or parallel, and can have, such as, including the error etc. producing error or deviation. Such as, described term can each include the error less than about �� 15 degree, it is preferable that the error less than about �� 10 degree, and the error more preferably no more than about �� 5.
In this manual, unless defined, otherwise the unit of angle is " degree ", and the unit of phase contrast is " nm ", and the unit of crosstalk ratio or brightness is " cd/m2����
If in the image display part of stereoscopic image display produce for right eye image light and for left eye image light they are sent in the process of spectators by suitably by or block, each image light accurately can be watched by the right eye of spectators or left eye, and therefore, light and shade can be differentiated clearly, picture quality can be improved, for instance contrast simultaneously.
But, generally speaking, if watching described stereoscopic image display with oblique angle, then it is difficult to stop the light leak for right eye or the image light of left eye suitably, and therefore, there is so-called crosstalk phenomenon, wherein, image light for right eye is watched by left eye, or the image light for left eye is watched by right eye. Additionally, visual angle narrows. In order to prevent crosstalk phenomenon, light shielding part can be formed in described display; But, form light shielding part and inevitably lead to the decline of brightness.
In described stereoscopic image display, the phase shift films with phase contrast in a thickness direction is set along following path: when described display runs, spectators watch picture signal, i.e. described phase shift films is arranged between image display part and the spectators producing picture signal. Described phase shift films can control the optical signature of the picture signal produced by image display part, then they is sent to spectators, thus solving problem that such as crosstalk or visual angle reduce without reducing contrast, and also can improve stereo image quality. Term " display operation " used herein refers to the state when display shows stereo-picture.
As long as described phase shift films has the phase contrast (positive phase difference in preferred thickness direction) of thickness direction, it is possible to use multiple phase shift films known in the art, for instance ,+C plate or+B plate. + C the plate used in the description represents the film of the relation meeting formula 1, and+B the plate used in the description represents the film of the relation meeting equation 2 below or formula 3.
[formula 1]
Nx=Ny<Nz
[formula 2]
Nx��Ny��Nz
[formula 3]
Nx��Ny<Nz
Wherein, NxRepresent refractive index in the face on the slow-axis direction of phase shift films, NyRepresent refractive index in the face on the quick shaft direction of phase shift films and NzRepresent the refractive index on the thickness direction of phase shift films.
As it has been described above, the phase contrast (R of the thickness direction of described phase shift filmsth) can be calculated by formula 4, and the phase contrast (R in direction in the face of described phase shift filmsin) can be calculated by equation 5 below.
[formula 4]
Rth=d��(Nz-Ny)
[formula 5]
Rin=d��(Ny-Nx)
Wherein, Nx��NyAnd NzIdentical with the restriction in formula 1-3, and d represents the thickness of described phase shift films.
In the art, for measuring the N of described phase shift filmsx��Ny��Nz��RthAnd RinMethod be widely known, therefore, those skilled in the art can easily measure the N of described phase shift filmsx��Ny��Nz��RthAnd Rin��
The scope of the phase contrast of the thickness direction of described phase shift films is not particularly limited, and can determine according to the kind of stereoscopic image display or phase shift films etc.
In one embodiment, the phase contrast of+C plate in described phase shift films can meet formula 6 or the relation of formula 7, and the phase contrast of+B plate can meet under arbitrary relation in facial 8 to formula 11.
[formula 6]
YLOr YR=0.0201X2-0.0398X+0.0339��0.5
[formula 7]
YL=0.0192X2-0.0763X+0.0899��0.5
[formula 8]
YR=(9.24��10-7)X2-0.000236X+0.0288��0.5
[formula 9]
YL=(5.5��10-7)X2-0.000347X+0.067��0.5
[formula 10]
YR=(1.97��10-6)X2-0.000616X+0.0644��0.5
[formula 11]
YL=(1.99��10-6)X2-0.00125X+0.206��0.5
Wherein, the X of formula 6 and formula 7 is the phase contrast of the thickness direction of+C plate, and the phase contrast of the thickness direction that the X of formula 8 to formula 11 is+B plate.
Additionally, the YL of formula 6 to formula 11 represents crosstalk ratio (unit: the cd/m when described stereoscopic image display runs in the left eye of spectators2)��YLLess than 0.3 can be preferably, more preferably less than 0.1, even more preferably from less than 0.05, and most preferably less than 0.01. Additionally, YRRepresent crosstalk ratio (unit: the cd/m in the right eye of spectators when described stereoscopic image display runs2)��YRLess than 0.3 can be preferably, more preferably less than 0.1, even more preferably from less than 0.05, and most preferably less than 0.01.
According to formula 6 to formula 11, the phase contrast of the thickness direction of described phase shift films, the region of the image light process for right eye in phase shift films can be designed to mutually the same or different from each other with the phase contrast of the thickness direction in the region of the image light process for left eye. In sum, it is not particularly limited for the difference between the image light of right eye and the image light for left eye. Such as, as by as described below, when described display is the polaroid glasses escope including polarisation key-course, the kind according to polarisation key-course, the difference between the image light for right eye and the image light for left eye can be limited by following situation.
When described phase contrast is designed to different from each other, in+C plate, for the region of image light process of right eye with the relation of formula 6 can be met for the phase contrast of thickness direction in the region of the image light process of left eye; Or, can meet the relation of formula 6 for the phase contrast of thickness direction in the region of the image light process of right eye, and the relation of formula 7 can be met for the phase contrast of thickness direction in the region of the image light process of left eye, but be not restricted to that this. Additionally, in+B plate, the relation of formula 8 can be met for the phase contrast of thickness direction in the region of the image light process of right eye, and the relation of formula 9 can be met for the phase contrast of thickness direction in the region of the image light process of left eye; Or, can meet the relation of formula 10 for the phase contrast of thickness direction in the region of the image light process of right eye, and the relation of formula 11 can be met for the phase contrast of thickness direction in the region of the image light process of left eye, but be not limited to this.
In one embodiment, the phase contrast of the thickness direction of described phase shift films can be, for instance, 30nm to 350nm. In addition, when described phase shift films is+B plate, described film can have the phase contrast in direction in face and the phase contrast of thickness direction, and can properly select the phase contrast in direction in face according to stereo image quality, for example, it is possible to select in the scope of about 120nm to 160nm.
But, the scope of described phase contrast is only illustrative example and described phase contrast (RthAnd Rin) can design according to the kind of display or particular make-up. Preferably, it is possible to implement the embodiment of such control according to above-mentioned formula.
The described image display part included at described display is not particularly limited to any kind, it is possible to use all of image display part used in the various stereoscopic image displays being known in the art.
In one embodiment, described display can be glasses type, especially, and polaroid glasses type stereoscopic image display. Described image display part may include that image production components, described image production components can produce the picture signal including the image light for right eye and the image light for left eye, then they is sent to viewer side; With polarisation key-course, described polarisation key-course is arranged on the viewer side from image production components, and when if described picture signal enters wherein, described polarisation key-course can control picture signal and make the image light for right eye and the image light for left eye have polarization state different from each other, then they can also be sent to viewer side.
Fig. 1 is the figure of an aspect of shown stereoscopic image display (1) indicated above.
The image production components included at the illustrative display (1) of Fig. 1 can include light source (11), the first Polarizer (12), image generation layer (13) and the second Polarizer (14), and polarisation key-course (15) can be arranged on spectators (17) side of image production components.
In one embodiment, spectators (17) can wear polaroid glasses viewing stereo-picture. Described polaroid glasses are passable, for instance, there is the eyeglass for right eye and the eyeglass for left eye, and the described eyeglass for right eye with for left eye can include Polarizer respectively. By the Polarizer in each eyeglass being designed with different absorption axles, such as, make it perpendicular to one another by controlling the absorption axle of the Polarizer absorbed in axle and the eyeglass for left eye for the Polarizer in the eyeglass of right eye, the image light that can be used in left eye is only watched by left eye, and the image light for right eye is only watched by right eye. In one embodiment, the eyeglass for right eye with for left eye each can include ��/4 wavelength layer and Polarizer further respectively. In this case, the absorption axle of described Polarizer need not be always different from each other. Such as, in the above-described embodiment, by controlling the Polarizer for right eye and the eyeglass of left eye to make it have absorption axle parallel to each other, and also control for ��/4 wavelength layer of right eye and the eyeglass of left eye to make it have the optical axis in different directions from each other, such as, the optical axis being used for ��/4 wavelength layer of the eyeglass of right eye and left eye is designed to perpendicular to one another, it is possible to use the image light in left eye is only watched by left eye, and the image light for right eye is only watched by right eye. In addition it is also possible to use the Polarizer controlling the eyeglass for right eye and left eye to make it have different directions from each other and also to control the optical axis for ��/4 wavelength layer in the eyeglass of right eye and left eye so that its method parallel to each other. Term " ��/4 wavelength layer " expression can by the phase retardation element of the degree of 1/4 wavelength of the phase retardation of incident illumination to lambda1-wavelength as used herein.
In the display (1) of Fig. 1, the part that described light source (11) is image production components, and, for instance, it is possible to use the state of display (1) to send unpolarized white light to Polarizer (12). As light source (11), for instance, it is possible to use it is normally used for straight-down negative or the edge-lit backlight unit (BLU) of liquid crystal display.
In the display (1) of Fig. 1, the first Polarizer (12) is arranged on the side of light source (11). Described first Polarizer (12) can have light transmission shaft and be perpendicular to the absorption axle of described light transmission shaft. When watching the light sent from described light source (11), the light only in described incident illumination with the polarizing axis being parallel to light transmission shaft just can through described first Polarizer (12). The direction of described polarizing axis can be the direction of vibration of electric field.
In the display (1) of Fig. 1, described image produces layer (13), for instance, transmission liquid crystal display, wherein, it is possible to produce the single pixel for right eye or the image light of left eye or multiple pixel and arranged with the direction of row and/or row. The picture signal of gained by showing that each pixel of the signal under the state according to use display (1) produces to include the picture signal for left eye and the image light of right eye, and can be sent to the second Polarizer (14) by such display floater. Described display floater can include, for instance, substrate, pixel electrode, oriented layer, liquid crystal layer, another oriented layer, ordinary electrode, colored filter and the substrate that order is arranged from light source (11). In described display floater, single pixel or at least two pixel can form the image production section (UR) for right eye or the image production section (UL) for left eye. Such as, the image production section (UR) for the image production section (UL) of left eye with for right eye can be arranged or to be shown in the grid pattern setting of Fig. 3 by the alternative bands pattern extending to common direction to be shown in Fig. 2.
When running described stereoscopic image display, the image production section for right eye and left eye produces the image for right eye and the image for left eye respectively. Such as, in the illustrative display (1) of Fig. 1, when the light sent from described light source (11) is through the first Polarizer (12), during then into display unit (13), through becoming the image for right eye for the light of the image production section (R) of right eye, and the light passing through the image production section (L) for left eye becomes the image for left eye. In one embodiment, the image for right eye and left eye can be the linearly polarized photon in a particular direction with each polarizing axis, and the direction of these polarizing axis can be parallel to each other.
In the display of figure (1), the second Polarizer (14) is set towards viewer side. When the light for right eye and left eye enters into the second Polarizer (14), the light of the light transmission shaft being only parallel to described Polarizer (14) can through Polarizer (14). In one embodiment, the light transmission shaft of described first and second Polarizers (12,14) can distinguish setting as follows: makes them form the angle of 90 degree each other.
In the display (1) of Fig. 1, described polarisation key-course (15) includes the polarisation control area (AR) of the image light for right eye and the polarisation control area (AL) of the image light for left eye. Polarisation control area (AR) for the image light of right eye is the region controlling the polarized condition from the image light for right eye for producing the image production section (UR) of right eye and transmitting, it is possible to be set such that the image light for right eye can enter. Polarisation control area (AL) for the image light of left eye is the region controlling the polarized condition from the image light for left eye for producing the image production section (UL) of left eye and transmitting, it is possible to be set such that the image light for left eye can enter. Such as, if the image production section for right eye and left eye produced in layer (13) at image is arranged with the form of such as Fig. 2, accordingly, described polarisation control area (AR, AL) can be arranged with the form of such as Fig. 4, if and image production section (UR, UL) arrange with such as Fig. 3, accordingly, described polarisation control area (AR, AL) can arrange such as the form of Fig. 5, but be not limited to this.
After described polarisation key-course (15), the image light for right eye and left eye has polarized condition different from each other. In one embodiment, the described image light for right eye and left eye can include linear polarization to have the light in the direction being substantially perpendicular to each other, or can include left circularly polarized light or right-circularly polarized light.
As Fig. 1 schematically shows, phase shift films (16) is arranged on the image production components in described display (1) and between spectators (17). Described phase shift films (16) has a phase contrast of thickness direction, and arranges it and make the picture signal when picture signal is sent to spectators (17) can according to its thickness direction through film (16). As shown in Figure 1, when stereoscopic image display is polaroid glasses escope, by be attached on the polarisation key-course (15) of image display part can integrated described phase shift films (16), or can be attached on the polaroid glasses that spectators (17) wear.
In the display (1) of Fig. 1, described polarisation key-course (15) includes the polarisation control area (AR for right eye and the image light of left eye, AL), and the described image light for right eye and left eye can polarize to have direction substantially perpendicular to each other linearly after key-course (15), or can Left-hand circular polarization and right-hand circular polarization.
In one embodiment, when the respectively left circularly polarized light of the image light for right eye and left eye or right-hand circular polarization light, polarisation key-course can include the polarisation control area of the image light for right eye and the polarisation control area of the image light for left eye, and described key-course also includes ��/4 wavelength layer being simultaneously located on the polarisation control area of right eye and the image light of left eye, and ��/4 wavelength layer in the polarisation control area of the image light for right eye and ��/4 wavelength layer in the polarisation control area of the image light for left eye can also have optical axis different from each other. at this, described optical axis can be expressed as when the incident illumination fast axle through corresponding region or slow axis. the optical axis of the optical axis of ��/4 wavelength layer in the polarisation control area of the image light for right eye and ��/4 wavelength layer in the polarisation control area of the image light for left eye can form the angle of 90 degree each other. hereinafter, polarisation key-course as above can be called " patterned ��/4 wavelength layer ". in another embodiment, produce the polarisation key-course of left circularly polarized light and right-circularly polarized light and can include the polarisation control area of the image light for right eye and the polarisation control area of the image light for left eye, and described key-course is additionally included in for ��/4 wavelength layer in the polarisation control area of right eye and the image light of left eye and only ��/2 wavelength layer in any region of the polarisation control area of the image light for right eye and left eye. hereinafter, this polarisation key-course can be called " (��/2+ ��/4) wavelength layer ". additionally, the definition of ��/4 wavelength layer is same as described above, and term " ��/2 wavelength layer " expression can by the phase retardation element of the degree of 1/2 wavelength of the phase retardation of incident illumination to described lambda1-wavelength as used herein.
When including above-mentioned left circularly polarized light and right-hand circular polarization light when the picture signal sent from described polarisation key-course, in order to suitably watch described picture signal, spectators can wear polaroid glasses, it includes the eyeglass for right eye and left eye, and the described eyeglass for right eye and left eye includes ��/4 wavelength layer and Polarizer respectively. Hereinafter, the polaroid glasses including ��/4 as above wavelength layer can be called rotatory polarization glasses. Additionally, in one embodiment, when spectators wear glasses, the eyeglass for right eye and left eye in rotatory polarization glasses can sequentially include eyeglass, Polarizer and ��/4 wavelength layer respectively from viewer side. Additionally, can also watch picture signal as above by wearing polaroid glasses, described polaroid glasses include the eyeglass for right eye and left eye, and the described eyeglass for right eye and left eye includes Polarizer. Hereinafter, this polaroid glasses can be called linear polarization glasses. Can the absorption axle of the optical axis of the wavelength layer in rotatory polarization glasses and linear polarization glasses controlled as described above and Polarizer.
In described polaroid glasses escope, when described polarisation key-course is (��/2+ ��/4) wavelength layer, described phase shift films can be+C plate or+B plate.
In this manual, when described polarisation key-course is (��/2+ ��/4) wavelength layer, the light passing through the only region that ��/4 wavelength layer exists in polarisation key-course can be called the image light for right eye; And the light that there is the region of ��/2 wavelength layer and ��/4 wavelength layer while passing through in polarisation key-course can be called the image light for left eye.
As it has been described above, when described phase shift films is+C plate, the phase contrast of the thickness direction determined according to formula 6 or formula 7 can be, for instance, about 50nm to 270nm. Preferably, it is possible to control the phase contrast of the thickness direction in the region of the image light process for right eye in+C plate according to formula 6, and can be, for instance, 140nm to 200nm, and it is preferably 150nm to 190nm. Furthermore, it is possible to control the phase contrast of the thickness direction in the region of the image light process for left eye according to formula 7, and can be, for instance, 60nm to 120nm, and it is preferably 70nm to 110nm. Furthermore in this case, it is preferable that spectators wear above-mentioned rotatory polarization glasses watches described stereoscopic image display, but it is not limited to this. Additionally, as long as above-mentioned phase shift films is arranged between image display part and spectators, its position is just not particularly limited. Such as, it can be attached on the polarisation key-course in image display part or before polaroid glasses. But, if the image light for right eye and the image light for left eye have the phase contrast of thickness direction different from each other, for convenience's sake, described phase shift films is preferably attached to before polaroid glasses. But, even if in these cases, it is also possible to make described phase shift films itself graphical and be integrated on display, without being attached to before polaroid glasses.
If additionally, described phase shift films is+B plate, the phase contrast of the thickness direction determined according to formula can be, for instance, about 50nm to 350nm. Additionally, in this case, the phase contrast (R on direction in the face of+B platein) can be, for instance, about 120nm to 160nm. Preferably, it is possible to control the phase contrast of the thickness direction in the region of the image light process for right eye in+B plate according to formula 8, and can be, for instance, 150nm to 350nm, and it is preferably 200nm to 300nm. Furthermore, it is possible to control the phase contrast of the thickness direction in the region of the image light process for left eye in+B plate according to formula 9, and can be, for instance, 50nm to 250nm, and it is preferably 100nm to 150nm. In this case, it is preferable that for the region of image light process of left eye with have the phase contrast of thickness direction different from each other for the region of image light process of right eye. Furthermore in this case, it is preferable that spectators wear linear polarization glasses watches described stereoscopic image display, but it is not limited to this. Additionally, the position for arranging above-mentioned phase shift films can be same as described above.
In polaroid glasses escope, if described polarisation key-course is patterned ��/4 wavelength layers, then described phase shift films can be+C plate or+B plate, but is more preferably+C plate.
In this manual, when described polarisation key-course is patterned ��/4 wavelength layer, the light passing through arbitrary ��/4 wavelength layer in ��/4 wavelength layer with optical axis different from each other can be called the image light for right eye, and the light passing through other arbitrary ��/4 wavelength layer in ��/4 wavelength layer with optical axis different from each other can be called the image light for left eye.
As it has been described above, when described phase shift films is+C plate, the phase contrast of the thickness direction determined according to formula can be, for instance, about 30nm to 350nm. Preferably, it is possible to control the phase contrast of the thickness direction in the region of the image light process for right eye in+C plate according to formula 6, and, for instance, it is possible to for 150nm to 350nm, and be preferably 200nm to 300nm. Furthermore, it is possible to control the phase contrast of thickness direction in the region of the image light process for left eye according to formula 6, and, for instance, it is possible to for 50nm to 250nm, and it is preferably 100nm to 150nm. Furthermore in this case, it is preferable that spectators wear described rotatory polarization glasses watches described stereoscopic image display, but it is not limited to this. Additionally, the position for arranging above-mentioned phase shift films can be same as described above.
In polaroid glasses escope as shown in Figure 1, when described polarisation key-course produces linearly polarized photon to have direction substantially perpendicular to each other, described polarisation key-course can include the polarisation control area of the image light for right eye and the polarisation control area of the image light for left eye, and described key-course can include ��/2 wavelength layer that is provided only on any region of the polarisation control area of right eye and left eye. Polarisation key-course as above can be called " patterned ��/2 wavelength layer ".
In polaroid glasses escope, when described polarisation key-course is patterned ��/2 wavelength layer, described phase shift films can be+C plate or+B plate, but is more preferably+B plate.
In this manual, when described polarisation key-course is patterned ��/2 wavelength layer, pass through the light in the region being absent from ��/2 wavelength layer in polarisation key-course and can be called the image light for right eye, and the light passing through the region of existence ��/2 wavelength layer in polarisation key-course can be called the image light for left eye.
At this, the phase contrast of the thickness direction of+B plate determined according to formula can be, for instance, about 50nm to 350nm. Additionally, in this case, the phase contrast (R in direction in the face of+B platein) can be, for instance, about 120nm to 160nm. Preferably, it is possible to control the phase contrast of the thickness direction in region through the image light process for right eye in+B plate according to formula 10, and, for instance, it is possible to for 150nm to 350nm, and be preferably 200nm to 300nm. Furthermore, it is possible to control the phase contrast of thickness direction in the region of the image light process for left eye according to formula 11, and, for instance, it is possible to for 50nm to 250nm, and it is preferably 100nm to 200nm. Furthermore in this case, it is preferable that spectators wear above-mentioned rotatory polarization glasses watches described stereoscopic image display, but it is not limited to this. Additionally, the position for arranging above-mentioned phase shift films can be same as described above.
May be used for the phase shift films in described above and be not particularly limited to any specific kind, and multiple phase shift films as known in the art can be used, if they described phase contrast features indicated above. In one embodiment, described phase shift films can be the polymeric film of liquid crystal film or routine. In the case of a polymer film, it can be wherein by uniaxially or biaxially stretching the polymeric film of the phase contrast controlling thickness direction.
The invention still further relates to a kind of optical filter for stereoscopic image display, comprising: polarisation key-course, described polarisation key-course can control to include the image light for right eye and the picture signal for the image light of left eye makes the image light for right eye and the image light for left eye have polarized condition different from each other, and then, if described picture signal enters, they can be launched by it; And phase shift films, described phase shift films is attached to the side of described key-course, and described image light is launched from which, and it also has the phase contrast of thickness direction.
Described optical filter, has and is similar to as above for improving the optical filter of the shape of the phase shift films of picture quality, be integrated by being attached to, and may apply in above-mentioned polaroid glasses type stereoscopic image display on polarisation key-course. Fig. 6 represents an illustrative optical filter (6), wherein, is attached on described polarisation key-course (15) by described phase shift films (16). Arrow in Fig. 6 represents the direction including the picture signal process for left eye and the image light of right eye when described stereoscopic image display runs.
Therefore, above-mentioned situation can be applied similarly to specific kind of phase shift films or value (such as phase contrast).
Such as, the phase shift films comprised in described optical filter is+C plate, and its phase contrast can meet formula 6 or the relation of formula 7 or+B plate, and its phase contrast can meet the equation 8 below arbitrary relation to formula 11.
[formula 6]
YLOr YR=0.0201X2-0.0398X+0.0339��0.5
[formula 7]
YL=0.0192X2-0.0763X+0.0899��0.5
[formula 8]
YR=(9.24��10-7)X2-0.000236X+0.0288��0.5
[formula 9]
YL=(5.5��10-7)X2-0.000347X+0.067��0.5
[formula 10]
YR=(1.97��10-6)X2-0.000616X+0.0644��0.5
[formula 11]
YL=(1.99��10-6)X2-0.00125X+0.206��0.5
In above-mentioned formula, the X of formula 6 and formula 7 is the phase contrast of the thickness direction of+C plate, and the phase contrast of the thickness direction that the X of formula 8 to formula 11 is+B plate.
Y in formula 6 to formula 11RAnd YLWhen being illustrated respectively in the stereoscopic image display operation applying described optical filter, the crosstalk ratio (Cd/m in left eye and right eye2), and described value can be separately or concurrently, it is preferred to less than 0.3, more preferably less than 0.1, and even more preferably from less than 0.05, and most preferably less than 0.01.
Additionally, the polarisation key-course in described optical filter can be made up of the polarisation key-course in above-mentioned stereoscopic image display, and can be, for instance, the wavelength layer of above-mentioned patterned ��/2 or ��/4 or (��/2+ ��/4) wavelength layer. In stereoscopic image display field, known multiple patterned ��/2 wavelength layer, patterned ��/4 wavelength layer or (��/2+ ��/4) wavelength layer or the method realizing them, and all above-mentioned known methods may be used for constitute polarisation key-course.
When optical filter is applied to described display, can arrange it makes described polarisation key-course be arranged on the side that the picture signal produced by image display part enters, and the described picture signal passing through polarisation key-course is transferred to viewer side by phase shift films.
Additionally, the method that described phase shift films is attached on polarisation key-course be not particularly limited, and described optical filter can be, for instance, by use conventional contact adhesive lamination they and prepare.
The invention still further relates to for watching stereo-picture and there are the eyeglass for right eye and the polaroid glasses of the eyeglass for left eye. Phase shift films and the Polarizer with the phase contrast of thickness direction is each included for the eyeglass of right eye and left eye.
Described polaroid glasses may be used for the image that viewing sends from polaroid glasses type stereoscopic image display. Described polaroid glasses can be above-mentioned rotatory polarization glasses or linear polarization glasses, with the phase shift films for improving picture quality before described polaroid glasses. Fig. 7 is the figure representing schematic polaroid glasses. Fig. 7 (A) represents the eyeglass (it includes Polarizer (71L) and phase shift films (72L)) for left eye including being arranged on the left eye (LE) of spectators and the eyeglass (it includes Polarizer (71R) and phase shift films (72R)) for right eye being arranged on right eye (RE). Arrow in Fig. 7 (A) and (B) represents the direction of the picture signal shown to spectators.
Therefore, above-mentioned situation can be applied similarly to specific kind of phase shift films or value (such as phase contrast).
Such as, the phase shift films comprised in described polaroid glasses is+C plate, and its phase contrast can meet formula 6 or the relation of formula 7 or+B plate, and its phase contrast can meet the equation 8 below arbitrary relation to formula 11.
[formula 6]
YLOr YR=0.0201X2-0.0398X+0.0339��0.5
[formula 7]
YL=0.0192X2-0.0763X+0.0899��0.5
[formula 8]
YR=(9.24��10-7)X2-0.000236X+0.0288��0.5
[formula 9]
YL=(5.5��10-7)X2-0.000347X+0.067��0.5
[formula 10]
YR=(1.97��10-6)X2-0.000616X+0.0644��0.5
[formula 11]
YL=(1.99��10-6)X2-0.00125X+0.206��0.5
In above-mentioned formula, at the phase contrast of the thickness direction that X is+C plate of formula 6 and formula 7, and the phase contrast of the thickness direction that X is+B plate in formula 8 to formula 11.
Y in formula 6 to formula 11RAnd YLIt is illustrated respectively in the process using polaroid glasses viewing stereo-picture, the crosstalk ratio (Cd/m in left eye and right eye2), and described value can be separately or concurrently, it is preferred to less than 0.3, more preferably less than 0.1, and even more preferably from less than 0.05, and most preferably less than 0.01.
Additionally, when described polaroid glasses are rotatory polarization glasses, the eyeglass for left eye and right eye may further include ��/4 wavelength layer. In this case, as it has been described above, the absorbing axle and with direction parallel to each other, and can have optical axis different from each other at ��/4 wavelength layer that the eyeglass for right eye and left eye includes of the Polarizer included at the eyeglass for right eye and left eye. In other embodiments, the absorption axle of the Polarizer included at the eyeglass for right eye and left eye can have different directions from each other, and can have optical axis parallel to each other at ��/4 wavelength layer that the eyeglass for right eye and left eye includes.
What Fig. 7 (B) was polaroid glasses schematically schemes, and it represents the eyeglass (it includes Polarizer (71L), ��/4 wavelength layer (73L) and phase shift films (72L)) for left eye including being arranged on the left eye (LE) of spectators and the eyeglass (it includes Polarizer (71R), ��/4 wavelength layer (73R) and phase shift films (72R)) for right eye being arranged on right eye (RE).
A kind of method that the invention still further relates to quality for improving the stereo-picture shown by image display part, described image display part can produce the picture signal for right eye and the image light of left eye including being watched by spectators' right eye and left eye respectively, then they is sent to viewer side. Described method comprises the steps: to arrange the phase shift films of the phase contrast with thickness direction, so that with thickness direction through described phase shift films, can be then transmitted to viewer side from the picture signal sent of image display part.
In one embodiment, can be the method for preparing stereoscopic image display, optical filter or polaroid glasses for improving the method for the quality of stereo-picture, wherein, the quality of stereo-picture can be improved by being arranged between image display part and spectators by phase shift films, or the method using described stereoscopic image display, wherein, spectators wear polaroid glasses, then watch stereo-picture.
Therefore, above-mentioned situation can be similar the display being applied in specific kind of phase shift films, phase difference value and said method or glasses in setting.
Such as, the phase shift films included in the process is+C plate, and its phase contrast can meet formula 6 or the relation of formula 7 or+B plate, and its phase contrast can meet arbitrary relation of formula 8 to formula 11.
[formula 6]
YLOr YR=0.0201X2-0.0398X+0.0339��0.5
[formula 7]
YL=0.0192X2-0.0763X+0.0899��0.5
[formula 8]
YR=(9.24��10-7)X2-0.000236X+0.0288��0.5
[formula 9]
YL=(5.5��10-7)X2-0.000347X+0.067��0.5
[formula 10]
YR=(1.97��10-6)X2-0.000616X+0.0644��0.5
[formula 11]
YL=(1.99��10-6)X2-0.00125X+0.206��0.5
In above-mentioned formula, at the phase contrast of the thickness direction that X is+C plate of formula 6 and formula 7, and the phase contrast of the thickness direction that X is+B plate in formula 8 to formula 11.
Y in formula 6 to formula 11RAnd YLRepresent when described stereoscopic image display runs respectively, the crosstalk ratio (Cd/m in left eye and right eye2), and described value can be separately or concurrently, it is preferred to less than 0.3, more preferably less than 0.1, and even more preferably from less than 0.05, and most preferably less than 0.01.
When described method is the method preparing stereoscopic image display, optical filter or polaroid glasses etc., as long as described method includes arranging in place described phase shift films, the kind etc. of the element of other concrete step or use is not particularly limited, and can apply to this in the content of all routines known in the art.
Beneficial effect
The present invention can provide a kind of a kind of a kind of method of stereoscopic image display, optical filter for stereoscopic image display, polaroid glasses or quality for improving stereo-picture for watching stereo-picture, described stereoscopic image display is prevented from crosstalk or visual angle reduces, and also prevent the decline of brightness when showing stereo-picture, improve picture quality (such as, contrast) simultaneously.
Accompanying drawing explanation
Fig. 1 is the sectional view describing a schematic display.
Fig. 2 and 3 are for schematically describing the figure for right eye and the configuration of the image production section of left eye in stereoscopic image display.
Figure 4 and 5 are the figure of the configuration of the schematic description polarisation control area for right eye and left eye in stereoscopic image display polarisation key-course.
Fig. 6 is the figure describing the schematic optical filter for stereoscopic image display.
Fig. 7 is the figure describing the schematic polaroid glasses for watching stereo-picture.
Fig. 8 to 16 is the figure for measurement result is described.
Detailed description of the invention
Will be described in detail the present invention by the comparative example according to embodiments of the invention with not according to the present invention, but the present invention is not limited to the following examples.
In this manual, physical property is measured by method as described below.
1, the phase contrast of phase shift films
The photo measure that the phase contrast of phase shift films can use wavelength to be 550nm or 589nm. Phase contrast can be obtained by the 16 of phase shift films Muller matrixes, and it is measured by Axoscan (being produced by Axomatrics), and Axoscan is a kind of instrument that can measure 16 Muller matrixes according to the description of manufacturer.
2, the method assessing crosstalk ratio
The crosstalk of stereoscopic image display is than being defined as between dark-state and on state of the ratio of brightness. Kind according to stereoscopic image display, in the method for multiple measurement crosstalk ratio known in the art. Such as, the crosstalk ratio in the embodiment using polaroid glasses type stereoscopic image display can be measured by method below. First, the polaroid glasses for watching stereo-picture are arranged on the conventional viewing point of stereoscopic image display. As it has been described above, the point of 3/2 times that viewing point is the horizontal length that central point is described display apart from described display of described routine. Described polaroid glasses are with following condition setting: at conventional viewing point, they are towards the center of described display. Described horizontal length can be relative to the spectators watching described stereo-picture, the length of the horizontal direction of described display, i.e. can be the transverse width of described display. In above-mentioned configuration, when described display shows the image for left eye, brightness measurer (SR-U2 photometer) is separately positioned on after the eyeglass for left eye and right eye of polaroid glasses, then, the brightness after left eyeglass lens is measured and for the brightness after the eyeglass of right eye. As it has been described above, for the eyeglass brightness that brightness is on state of below of left eye, and in the brightness that brightness is dark-state that the eyeglass for right eye is measured below. After measuring brightness, calculating the brightness ratio ([brightness of dark-state]/[brightness of on state of]) relative to the brightness of on state of of dark-state, it can be called the crosstalk ratio (Y in left eyeL). Furthermore, it is possible to by measuring the crosstalk ratio (Y in right eye with upper described identical methodR), specifically, it can be calculated by the brightness of the measurement on state of when described stereoscopic image display shows the image for right eye and dark-state. In this case, it is the brightness of on state of for the brightness after the eyeglass of right eye, and in the brightness that brightness is dark-state that the eyeglass for left eye is measured below. Additionally, ratio ([brightness of the brightness/on state of of dark-state]) can similarly be called crosstalk ratio (YR)��
3, the assessment method according to the crosstalk ratio of horizontal view angle
The crosstalk ratio according to horizontal view angle can be assessed by method below. Such as the method for assessing crosstalk ratio described in above-mentioned project 2, the described polaroid glasses for watching stereo-picture are arranged on the conventional viewing point of described display, then, within the scope of 0 to 80 degree, change viewing angle by referring to spectators in the horizontal direction with 5 degree for interval, measure crosstalk ratio (Y by such as identical method described in project 2LAnd YR). At this, make the sight line of spectators from the baseline (0 degree) of horizontal direction relative to obtaining viewing angle when spectators' angle of the change of the angle of the sight line of spectators when the center of the conventional viewing point described display of viewing by measuring. Additionally, the crosstalk in above-mentioned project 2 is than the value for measuring the viewing angle of 0 degree.
4, the method assessing the brightness according to horizontal view angle and crosstalk
Such as the method for measuring crosstalk ratio described in above-mentioned project 3, the described polaroid glasses for watching stereo-picture are arranged on the conventional viewing point of described display, then, within the scope of 0 to 80 degree, change viewing angle by referring to spectators in the horizontal direction with 5 degree for interval, measure the crosstalk brightness according to horizontal view angle by such as identical method described in project 2. Calculated according to the crosstalk brightness (CR in the left eye of horizontal view angle by formula 12Left), and calculated according to the crosstalk brightness (CR in the right eye of horizontal view angle by formula 13Right)��
[formula 12]
CRLeft=in polaroid glasses for left eye region for left eye image light brightness/left eye in crosstalk ratio (YL)
[formula 13]
CRRight=in polaroid glasses for right eye region for right eye image light brightness/right eye in crosstalk ratio (YR)
Embodiment 1
Preparation has structure represented in FIG and includes the display of polarisation key-course (in Fig. 1 15) ((��/2+ ��/4) wavelength layer). in described polarisation key-course (in Fig. 1 15) ((��/2+ ��/4) wavelength layer), there is the light transmission shaft with Polarizer (in Fig. 1 14) and become ��/4 wavelength layer of slow axis of 45 degree to be arranged in the polarisation control area (R in the 15 of Fig. 1) of the image light for right eye, and there is ��/2 wavelength layer of the slow axis that the light transmission shaft with Polarizer (in Fig. 1 14) becomes-45 to spend and there is the light transmission shaft with Polarizer (in Fig. 1 14) become ��/4 wavelength layer of slow axis of 45 degree to be arranged in the polarisation control area (L in the 15 of Fig. 1) of the image light for left eye. then, the polaroid glasses (rotatory polarization glasses) having for right eye and the eyeglass of left eye are used to watch the image sent from stereoscopic image display, in described polaroid glasses, there is the light polarizing film that the light transmission shaft with Polarizer (in Fig. 1 14) becomes the light transmission shaft of 90 degree, having the light transmission shaft with Polarizer (in Fig. 1 14) becomes ��/4 wavelength layer of slow axis of 45 degree and+C plate to be attached to the eyeglass for right eye successively, and there is the light polarizing film that the light transmission shaft with Polarizer (in Fig. 1 14) becomes the light transmission shaft of 90 degree, ��/4 wavelength layer and the+C plate with the slow axis that the light transmission shaft with Polarizer (in Fig. 1 14) becomes-45 to spend are attached to the eyeglass for left eye successively. in above-mentioned steps, by changing the phase contrast of the thickness direction of+C plate being attached on the eyeglass of left eye and right eye, measure the crosstalk ratio in left eye or right eye, and result is shown in Figure 8. described+C plate is conventional liquid crystal type phase shift films, wherein, uses the phase shift films by using birefringence (�� n) that is prepared by the liquid crystal of vertical orientated light curable and that have 0.1. Fig. 8 (a) represents the crosstalk ratio (Y in left eye in the scenario aboveL), wherein, x-axis represents the phase contrast (unit: nm) of the thickness direction of+C plate, and y-axis represents crosstalk ratio (Cd/m2). Additionally, Fig. 8 (b) represents the crosstalk ratio (Y in right eyeR), wherein, x-axis represents the phase contrast (unit: nm) of the thickness direction of+C plate, and y-axis represents crosstalk ratio (Cd/m2)��
Embodiment 2
Except considering the result of embodiment 1, + the C that phase contrast the is 170nm plate (by being coated with liquid crystal type phase shift films prepared by the liquid crystal of the vertical orientated light curable of the birefringence (�� n) with 0.1 with the thickness of 1.7 ��m) of thickness direction is attached to the eyeglass for right eye, and outside+the C that phase contrast the is 90nm plate (by being coated with liquid crystal type phase shift films prepared by the liquid crystal of the vertical orientated light curable of the birefringence (�� n) with 0.1 with the thickness of 0.9 ��m) of thickness direction is attached on the eyeglass of left eye, stereoscopic image display and polaroid glasses are prepared by the method identical with embodiment 1.
Comparative example 1
Except not being attached on the eyeglass of right eye and left eye by+C plate, prepare stereoscopic image display and polaroid glasses with the method identical with embodiment 2.
EXPERIMENTAL EXAMPLE 1
When the display being used in embodiment 2 and comparative example 1, the crosstalk ratio according to horizontal view angle by the said method measurement image light for left eye and the image light for right eye, and shown in Figure 9. Fig. 9 (a) represents that wherein, x-axis represents horizontal view angle (unit: degree), and y-axis represents crosstalk ratio (Cd/m according to the crosstalk ratio in the left eye of horizontal view angle2). Fig. 9 (b) represents according to the crosstalk ratio in the right eye of horizontal view angle, and wherein, x-axis represents horizontal view angle (unit: degree), and y-axis represents crosstalk ratio (Cd/m2). In the various figures, dotted line represents the result of comparative example 1, and solid line represents the result of embodiment 2.
EXPERIMENTAL EXAMPLE 2
In using the process of display of embodiment 2 and comparative example 1, measured the brightness produced by the crosstalk according to horizontal view angle by said method, and shown in Figure 10. In Figure 10 (a), x-axis represents horizontal view angle (unit: degree), and y-axis represents brightness (CRLeft). In Figure 10 (b), x-axis represents horizontal view angle (unit: degree), and y-axis represents brightness (CRRight). In the various figures, dotted line represents the result of comparative example 1, and solid line represents the result of embodiment 2.
Embodiment 3
Except preparing following polaroid glasses (linear polarization glasses), prepare stereoscopic image display and polaroid glasses by the method identical with embodiment 1 and watch the image that the display from preparation sends, described polaroid glasses include the eyeglass for right eye and left eye, wherein have the phase contrast (R in direction in the light transmission shaft with Polarizer (in Fig. 1 14) becomes the light polarizing film of light transmission shaft of 90 degree and has the face of 140nmin)+B plate be attached to the eyeglass for right eye successively; And there is the phase contrast (R in direction in the light transmission shaft with Polarizer (in Fig. 1 14) becomes the light polarizing film of light transmission shaft of 90 degree and has the face of 140nmin)+B plate be attached to the eyeglass for left eye successively. In above-mentioned viewing step, by changing the phase contrast of the thickness direction of+B plate being attached on the eyeglass of left eye and right eye, measured the crosstalk ratio watched in left eye or right eye by said method, and result is shown in Figure 11. As+B plate, use COP (cyclic olefin polymer) phase shift films being often used as+B plate. Figure 11 (a) represents the crosstalk ratio (Y in left eyeL), wherein, x-axis represents the phase contrast (unit: nm) of the thickness direction of+B plate, and y-axis represents crosstalk ratio (Cd/m2). Additionally, Figure 11 (b) represents the crosstalk ratio (Y in right eyeR), wherein, x-axis represents the phase contrast (unit: nm) of the thickness direction of+B plate, and y-axis represents crosstalk ratio (Cd/m2)��
Embodiment 4
Except considering the result of embodiment 3, + the B that phase contrast the is 137.5nm plate (COP (cyclic olefin polymer) phase shift films (thickness 80 ��m)) that the phase contrast of thickness direction is direction in 240nm and face is attached to the eyeglass for right eye, and outside being attached on the eyeglass of left eye by the+B that phase contrast the is 137.5nm plate (COP (cyclic olefin polymer) phase shift films (thickness: 80 ��m)) that the phase contrast of thickness direction is direction in 130nm and face, prepare stereoscopic image display and polaroid glasses by the method identical with embodiment 3.
Comparative example 2
Except not being attached on the eyeglass of right eye and left eye by+B plate, constituted stereoscopic image display and polaroid glasses with the method identical with embodiment 4.
EXPERIMENTAL EXAMPLE 3
In using the process of display of embodiment 4 and comparative example 2, the crosstalk ratio according to horizontal view angle by the said method measurement image light for left eye and the image light for right eye, and be shown in Figure 12. Figure 12 (a) represents according to the crosstalk ratio (Y in the left eye of horizontal view angleL), wherein, x-axis represents horizontal view angle (unit: degree), and y-axis represents crosstalk ratio (Cd/m2). Figure 12 (b) represents according to the crosstalk ratio (Y in the right eye of horizontal view angleR), wherein, x-axis represents horizontal view angle (unit: degree), and y-axis represents crosstalk ratio (Cd/m2). In the various figures, dotted line represents the result of comparative example 2, and solid line represents the result of embodiment 4.
EXPERIMENTAL EXAMPLE 4
In using the process of display of embodiment 4 and comparative example 2, measure the image light for left eye by said method and be used for the brightness that the image light of right eye produces because of the crosstalk according to horizontal view angle, and being shown in Figure 13. In Figure 13 (a), x-axis represents horizontal view angle (unit: degree), and y-axis represents brightness (CRLeft). In Figure 13 (b), x-axis represents horizontal view angle (unit: degree), and y-axis represents brightness (CRRight). In the various figures, dotted line represents the result of comparative example 2, and solid line represents the result of embodiment 4.
Embodiment 5
Include polarisation key-course (in Fig. 1 15) (patterned ��/2 wavelength layer) by+B plate with the phase contrast in direction in the face of 140nm being attached to preparation before described polarisation key-course and there is the display of the structure shown in Fig. 1, wherein, ��/2 wavelength layer with the slow axis that the light transmission shaft with Polarizer (in Fig. 1 14) becomes-45 to spend exists only in the polarisation control area (L of 15 in Fig. 1) of the image light for left eye. Then, the polaroid glasses (rotatory polarization glasses) having for right eye and the eyeglass of left eye are used to watch the image sent from display, in described polaroid glasses, there is the light transmission shaft with Polarizer (in Fig. 1 14) and become the light polarizing film of light transmission shaft of 90 degree and there is the light transmission shaft with Polarizer (in Fig. 1 14) become ��/4 wavelength layer of slow axis of 45 degree to be attached to the eyeglass for right eye successively; And there is the light transmission shaft with Polarizer (in Fig. 1 14) become the light polarizing film of 90 degree of light transmission shafts and there is ��/4 wavelength layer of the slow axis that the light transmission shaft with Polarizer (in Fig. 1 14) becomes-45 to spend be attached to the eyeglass for left eye successively. In above-mentioned viewing step, by changing the phase contrast of the thickness direction being attached to the+B plate before polarisation key-course, measure the crosstalk ratio watched in left eye or right eye, and result is shown in Figure 14. At this, as+B plate, use COP (cyclic olefin polymer) phase shift films being often used as+B plate. In fig. 14, dotted line represents the crosstalk ratio (Y in left eyeL)(Cd/m2), and solid line represents the crosstalk ratio (Y of right eyeR)(Cd/m2), wherein, x-axis represents the phase contrast (unit: �� 100nm) of the thickness direction of+B plate, and y-axis represents crosstalk ratio (Cd/m2)��
Embodiment 6
Except considering the result of embodiment 5, + B the plate (COP (cyclic olefin polymer) phase shift films (thickness: 80 ��m)) of the phase contrast of the thickness direction of the phase contrast and 210nm with direction in the face of 137.5nm is attached to outside before the polarisation key-course in described device, prepares stereoscopic image display and polaroid glasses with the method identical with embodiment 5.
Comparative example 3
Except not by+B plate affixed thereto, constituted stereoscopic image display and polaroid glasses by the method identical with embodiment 6.
EXPERIMENTAL EXAMPLE 5
In using the process of display of embodiment 6 and comparative example 3, the crosstalk ratio according to horizontal view angle by the said method measurement image light for left eye and the image light for right eye, and be shown in Figure 15. In Figure 15 (a), x-axis represents horizontal view angle (unit: degree), and y-axis represents the crosstalk ratio (Y in left eyeL)(Cd/m2). In Figure 15 (b), x-axis represents horizontal view angle (unit: degree), and y-axis represents crosstalk ratio (YR)(Cd/m2). In the various figures, dotted line represents the result of comparative example 3, and solid line represents the result of embodiment 6.
EXPERIMENTAL EXAMPLE 6
In using the process of display of embodiment 6 and comparative example 3, the brightness according to the crosstalk of horizontal view angle by the said method measurement image light for left eye and the image light for right eye, and be shown in Figure 16. In Figure 16 (a), x-axis represents horizontal view angle (unit: degree), and y-axis represents brightness (CRLeft). In Figure 16 (b), x-axis represents horizontal view angle (unit: degree), and y-axis represents brightness (CRRight). In the various figures, dotted line represents the result of comparative example 3, and solid line represents the result of embodiment 6.
Accompanying drawing labelling
1: dimensional image display
11: light source 12,14: Polarizer
13: image produces layer
15: polarisation key-course
16: phase shift films
UR: for the generation region of the image light of right eye
UL: for the generation region of the image light of left eye
AR: for the polarisation control area of the image light of right eye
AL: for the polarisation control area of the image light of left eye
6: optical filter
LE: left eye RE: right eye
71L, 71R: Polarizer
72L, 72R: phase shift films
73L, 73R: ��/4 wavelength layer
Claims (10)
1. a stereoscopic image display, comprising:
Image display part, described image display part can produce the picture signal including the image light for right eye and the image light for left eye, and also they can be sent to viewer side; With
+ B plate, described+B plate meets the arbitrary relation in formula 8 to formula 11, and arranges described+B plate and make the picture signal transmitted from described image display part according to thickness direction through described+B plate, is then transmitted to viewer side:
[formula 8]
(9.24��10-7)X2-0.000236X+0.0288��0.5
[formula 9]
(5.5��10-7)X2-0.000347X+0.067��0.5
[formula 10]
(1.97��10-6)X2-0.000616X+0.0644��0.5
[formula 11]
(1.99��10-6)X2-0.00125X+0.206��0.5,
Wherein, X is the phase contrast of the thickness direction of described+B plate.
2. stereoscopic image display according to claim 1, wherein, the phase contrast of the thickness direction in the region in+B plate described in the image light process of right eye meets formula 8, and the phase contrast for the thickness direction in the region in the described+B plate of the image light process of left eye meets formula 9; Or, the phase contrast of the thickness direction in the region in+B plate described in the image light process of right eye meets formula 10, and the phase contrast for the thickness direction in the region in the described+B plate of the image light process of left eye meets formula 11.
3. stereoscopic image display according to claim 1, wherein, described image display part includes:
Image production components, described image production components can produce the picture signal including the image light for right eye and the image light for left eye, additionally it is possible to they are sent to viewer side; With
Polarisation key-course, described polarisation key-course is in the viewer side of described image production components, and, if described picture signal enters wherein, described polarisation key-course can control them and make the image light for right eye and the image light for left eye have polarized condition different from each other, additionally it is possible to they are sent to viewer side.
4. stereoscopic image display according to claim 3, wherein, described polarisation key-course includes the polarisation control area of the image light for right eye and the polarisation control area of the image light for left eye, and be additionally included in ��/4 wavelength layer on the polarisation control area of right eye and the image light of left eye, and only ��/2 wavelength layer on any region of the polarisation control area of the image light for right eye and left eye.
5. stereoscopic image display according to claim 4, wherein, the phase contrast at the thickness direction of described+B plate is 50nm to 350nm.
6. stereoscopic image display according to claim 3, wherein, described polarisation key-course includes the polarisation control area of the image light for right eye and the polarisation control area of the image light for left eye and also ��/2 wavelength layer only included on any region of the polarisation control area of the image light for right eye and left eye.
7. stereoscopic image display according to claim 6, wherein, the phase contrast of the thickness direction of described+B plate is 50nm to 350nm.
8. for an optical filter for stereoscopic image display, comprising:
Polarisation key-course, if including the image light for right eye and the image light for left eye picture signal enter described polarisation key-course time, described polarisation key-course can control them and make the image light for right eye and the image light for left eye have polarized condition different from each other, and also can launch them; With
+ B plate, described+B plate is attached to the side of described polarisation key-course, and described picture signal is launched from described+B plate, and described+B plate meets the arbitrary relation in formula 8 to formula 11:
[formula 8]
(9.24��10-7)X2-0.000236X+0.0288��0.5
[formula 9]
(5.5��10-7)X2-0.000347X+0.067��0.5
[formula 10]
(1.97��10-6)X2-0.000616X+0.0644��0.5
[formula 11]
(1.99��10-6)X2-0.00125X+0.206��0.5
Wherein, X is the phase contrast of the thickness direction of described+B plate.
9. for watching the polaroid glasses of stereo-picture, it includes the eyeglass for right eye and the eyeglass for left eye, and wherein, the described eyeglass for right eye and the eyeglass for left eye each include+B the plate meeting the arbitrary relation in formula 8 to formula 11; And Polarizer:
[formula 8]
(9.24��10-7)X2-0.000236X+0.0288��0.5
[formula 9]
(5.5��10-7)X2-0.000347X+0.067��0.5
[formula 10]
(1.97��10-6)X2-0.000616X+0.0644��0.5
[formula 11]
(1.99��10-6)X2-0.00125X+0.206��0.5
Wherein, X is the phase contrast of the thickness direction of described+B plate.
10. the method for improving the quality of the stereo-picture shown by image display part, described image display part can produce the picture signal for right eye and the image light of left eye including being watched by the right eye of spectators and left eye respectively, they can also be sent to viewer side
Described method includes the+B plate arranging the arbitrary relation met in formula 8 to formula 11, so that from the picture signal of described image display part with thickness direction through described+B plate, being then transmitted to viewer side:
[formula 8]
(9.24��10-7)X2-0.000236X+0.0288��0.5
[formula 9]
(5.5��10-7)X2-0.000347X+0.067��0.5
[formula 10]
(1.97��10-6)X2-0.000616X+0.0644��0.5
[formula 11]
(1.99��10-6)X2-0.00125X+0.206��0.5
Wherein, X is the phase contrast of the thickness direction of described+B plate.
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| CN201510997923.3A CN105467605B (en) | 2010-04-14 | 2011-04-14 | Stereoscopic image display |
| CN201510995894.7A CN105445951B (en) | 2010-04-14 | 2011-04-14 | Stereoscopic image display |
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| KR20100034216 | 2010-04-14 | ||
| KR1020110034353A KR101114911B1 (en) | 2010-04-14 | 2011-04-13 | A stereoscopic image display device |
| KR10-2011-0034353 | 2011-04-13 | ||
| PCT/KR2011/002660 WO2011129625A2 (en) | 2010-04-14 | 2011-04-14 | Stereoscopic image display device |
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| CN102540574B (en) * | 2012-02-29 | 2014-06-25 | 深圳市华星光电技术有限公司 | Three-dimensional display panel and three-dimensional display system |
| CN103974055B (en) * | 2013-02-06 | 2016-06-08 | 城市图像科技有限公司 | 3D photo generation system and method |
| CN105474072A (en) * | 2013-03-11 | 2016-04-06 | 埃维根特公司 | System, apparatus, and method for enhancing stereoscopic images |
| JP6578640B2 (en) * | 2014-09-22 | 2019-09-25 | 大日本印刷株式会社 | Light control device, installation method, and partition member |
| JP2016065895A (en) * | 2014-09-22 | 2016-04-28 | 大日本印刷株式会社 | Dimmer, installation method, and partition member |
| CN108802886B (en) * | 2018-06-15 | 2020-10-09 | 孙莹 | Polarized stereoscopic sheet and manufacturing method thereof, and 3DLED and manufacturing method thereof |
| CN110927855A (en) * | 2019-11-15 | 2020-03-27 | 浙江怡诚光电科技有限公司 | 3D display device, patterned circular polarizing plate and preparation method |
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| JP2013529312A (en) | 2013-07-18 |
| CN105445951B (en) | 2019-01-15 |
| KR101114911B1 (en) | 2012-02-14 |
| CN102859416A (en) | 2013-01-02 |
| CN105467605B (en) | 2018-10-16 |
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| CN105467605A (en) | 2016-04-06 |
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| TW201142358A (en) | 2011-12-01 |
| KR20110115094A (en) | 2011-10-20 |
| CN105445951A (en) | 2016-03-30 |
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