CN104216134A - High-brightness 2D/3D switchable integration imaging display device - Google Patents
High-brightness 2D/3D switchable integration imaging display device Download PDFInfo
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- CN104216134A CN104216134A CN201410502232.7A CN201410502232A CN104216134A CN 104216134 A CN104216134 A CN 104216134A CN 201410502232 A CN201410502232 A CN 201410502232A CN 104216134 A CN104216134 A CN 104216134A
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- pyramid
- polarized light
- polarization direction
- reflecting polarizer
- pinhole array
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Abstract
The invention provides a high-brightness 2D/3D switchable integration imaging display device. The device is composed of a diffuse reflection piece, a back light source, a reflection polarizing film I, a polarized light convertor, a pyramid pinhole array and a transmission display panel. A reflection polarizing film II is arranged on the side of the pyramid pinhole array, and the polarizing directions of the reflection polarizing film I and the reflection polarizing film II are orthogonal. When 3D content is displayed on the transmission display panel, no driving voltage is exerted on the polarized light converter, the polarized light converter does not change the polarizing direction of incident light, and the device achieves 3D display of high-brightness integration imaging. When 2D content is displayed on the transmission display panel, the driving voltage is applied on the polarized light converter, the polarized light converter enables the polarizing direction of the incidence light to deflect through 90 degrees, and the device achieves 2D display.
Description
Technical field
The present invention relates to integration imaging display technique, particularly the switchable integration imaging display device of a kind of high brightness 2D/3D.
Background technology
Integration imaging is a kind of true 3D technology, comprises and taking and two processes of demonstration.Shooting process adopts microlens array to take 3D object, obtains micro-pattern matrix with object different directions information; The light that in procedure for displaying, micro-pattern matrix sends is aggregated reduction, reconstructs the light field information of former 3D object.Integration imaging 3D shows the light information that energy reproducing 3D scene is sent or reflected, thereby construct authentic 3D rendering, have that true 3D shows, do not need utility appliance, is applicable to that many people watch, full parallax, the advantage such as viewpoint, with low cost, simple in structure, flatscreen (can wall hanging) continuously, become the study hotspot of researcher.
Integration imaging 3D shows and can realize by additional microlens array or two kinds of modes of pinhole array before display screen, microlens array produces 3D effect by the dioptric imaging effect that each pixel is emitted beam, but its manufacture craft is comparatively complicated, precision is not high, and due to factors such as aberrations, make the 3D rendering Quality Down of rebuilding.The manufacture craft of pinhole array is relatively simple, but due to its by light block and transmission effect produces 3D effect, therefore will stop most of light, only have fraction light to transmit from pin hole, thereby it is very low to make to reproduce the brightness of 3D rendering.
Because the program source of most is all 2D content, can compatible common 2D program source can realize again the changeable demonstration of 2D/3D that 3D program plays and will be accepted by more user.
Summary of the invention
The present invention proposes the switchable integration imaging display device of a kind of high brightness 2D/3D, and as shown in Figure 1, this device is made up of diffusive reflective plate, backlight, reflecting polarizer I, Polarization converter, pyramid pinhole array and transluscent display panel.The side of pyramid pinhole array is reflecting polarizer II, and the polarization direction of reflecting polarizer I and reflecting polarizer II is orthogonal.While showing 3D content on transluscent display panel, do not apply driving voltage on Polarization converter, Polarization converter does not change the polarization direction of incident light, and the integration imaging 3D that this contrive equipment is realized high brightness shows; While showing 2D content on transluscent display panel, apply driving voltage on Polarization converter, Polarization converter makes the polarization direction of incident light produce the rotation of 90 °, and this contrive equipment is realized 2D and shown.
Described diffusive reflective plate produces diffuse reflection effect to incident ray.
Pair incident light transmission identical with its polarization direction of described reflecting polarizer I, and to the reflection of the orthogonal incident light in its polarization direction.
Described pyramid pinhole array is equidistantly arranged and is formed in the horizontal and vertical directions by the pyramid pin hole shown in accompanying drawing 2, and pyramid pin hole bottom surface is that the length of side is
psquare, the reflecting polarizer II that the each side of pyramid pin hole is isosceles trapezoid, pair incident light transmission identical with its polarization direction of this reflecting polarizer II, and to the reflection of the orthogonal incident light in its polarization direction, the polarization direction of this reflecting polarizer II and reflecting polarizer I is orthogonal, an aperture is arranged at pyramid pin hole top, and this aperture aligns with pyramid pin hole bottom center.The length of side of the aperture at pyramid pin hole top is
q, the dutycycle of aperture
kfor
(1)
Preferably, the dutycycle of aperture in pyramid pin hole
kthe most suitable between 1% to 10%.
While showing 3D content on described transluscent display panel, do not apply driving voltage on Polarization converter, Polarization converter does not change the polarization direction of incident light, and this contrive equipment is realized the integration imaging 3D demonstration of high brightness, as shown in Figure 3.As shown in the solid arrow in accompanying drawing 3, the polarized light transmission identical with its polarization direction that reflecting polarizer I is sent backlight, and the polarized light of orthogonal directions is reflexed in the diffusive reflective plate of backlight below, after the depolarization of the polarized light of reflection through diffusive reflective plate, become natural light, again incide in reflecting polarizer I, then having again half to be transmitted half is reflected, go round and begin again, all light that final backlight sends are all converted into the polarized light identical with reflecting polarizer I polarization direction.As shown in the dotted arrow in accompanying drawing 3, do not executing in alive situation, the polarization direction of the polarized light of Polarization converter to incident does not change, polarized light directly sees through Polarization converter and enters pyramid pinhole array, the polarized light that arrives the aperture at pyramid pinhole array top is gone out by aperture transmission, and the polarized light that arrives the reflecting polarizer II of pyramid pinhole array side is reflected back toward in the diffusive reflective plate of backlight below, polarized light repeatedly passes through the depolarization of diffusive reflective plate and transmission and the reflection of reflecting polarizer I, again enter into pyramid pinhole array, then again some polarized light by the aperture transmission at pyramid pinhole array top, part polarized light is reflected the reflection of polaroid II, go round and begin again, final all light all transmits by the aperture at pyramid pinhole array top, thereby promote the utilization factor of light.On transluscent display panel, show that integration imaging 3D shows required micro-pattern matrix, image primitive pitch is identical with the length of side of pyramid pin hole bottom surface, is all
p, and each image primitive and corresponding pyramid pin hole center-aligned, the light of the aperture transmission at pyramid pinhole array top is irradiated on micro-pattern matrix, obtains the integration imaging 3D display effect of high brightness.
While showing 2D content on described transluscent display panel, apply driving voltage on Polarization converter, Polarization converter makes the polarization direction of incident light produce the rotation of 90 °, and this contrive equipment is realized 2D and shown, as shown in Figure 4.As shown in the solid arrow in accompanying drawing 4, the polarized light transmission identical with its polarization direction that reflecting polarizer I is sent backlight, and the polarized light of orthogonal directions is reflexed in the diffusive reflective plate of backlight below, after the depolarization of the polarized light of reflection through diffusive reflective plate, become natural light, again incide in reflecting polarizer I, then having again half to be transmitted half is reflected, go round and begin again, all light that final backlight sends are all converted into the polarized light identical with reflecting polarizer I polarization direction.As shown in the dotted arrow in accompanying drawing 4, Polarization converter makes the polarization direction of incident polarized light produce the rotation of 90 °, make the polarization direction of the polarized light that enters pyramid pinhole array identical with the polarization direction of reflecting polarizer II, all polarized lights that therefore arrive in pyramid pinhole array top aperture and offside reflection polaroid II are all directly transmitted.While showing 2D image on transluscent display panel, obtain 2D display effect.
The switchable integration imaging display device of a kind of high brightness 2D/3D that the present invention proposes, by changing the driving voltage of Polarization converter, has realized the changeable demonstration of 2D/3D.The light that backlight sends in the time that 3D shows multiple reflections and transmission between reflecting polarizer I, Polarization converter, reflecting polarizer II and diffusive reflective plate, is finally all transmitted by the aperture at pyramid pinhole array top, has improved the brightness that 3D shows.
Brief description of the drawings
The switchable integration imaging display device of a kind of high brightness 2D/3D schematic diagram that accompanying drawing 1 proposes for the present invention
Accompanying drawing 2 is the pyramid pin hole schematic diagram in the present invention
The 3D display mode schematic diagram that accompanying drawing 3 is apparatus of the present invention
The 2D display mode schematic diagram that accompanying drawing 4 is apparatus of the present invention
Shown by reference numeral in above-mentioned accompanying drawing is:
1 diffusive reflective plate, 2 backlights, 3 reflecting polarizer I, 4 Polarization converters, 5 pyramid pinhole array, 6 transluscent display panels, 7 reflecting polarizer II, 8 apertures.
Should be appreciated that above-mentioned accompanying drawing just schematically, not drafting in proportion.
Embodiment
An exemplary embodiments that describes the switchable integration imaging display device of a kind of high brightness 2D/3D of the present invention below in detail, is further described specifically the present invention.Be necessary to be pointed out that at this; following examples are only described further for the present invention; can not be interpreted as limiting the scope of the invention; this art skilled person makes some nonessential improvement and adjustment according to the invention described above content to the present invention, still belongs to protection scope of the present invention.
The present invention proposes the switchable integration imaging display device of a kind of high brightness 2D/3D, and as shown in Figure 1, this device is made up of diffusive reflective plate, backlight, reflecting polarizer I, Polarization converter, pyramid pinhole array and transluscent display panel.The side of pyramid pinhole array is reflecting polarizer II, and the polarization direction of reflecting polarizer I and reflecting polarizer II is orthogonal.While showing 3D content on transluscent display panel, do not apply driving voltage on Polarization converter, Polarization converter does not change the polarization direction of incident light, and the integration imaging 3D that this contrive equipment is realized high brightness shows; While showing 2D content on transluscent display panel, apply driving voltage on Polarization converter, Polarization converter makes the polarization direction of incident light produce the rotation of 90 °, and this contrive equipment is realized 2D and shown.
Diffusive reflective plate produces diffuse reflection effect to incident ray, pair incident light transmission identical with its polarization direction of reflecting polarizer I, and to reflecting with the orthogonal incident light in its polarization direction.
Pyramid pinhole array is equidistantly arranged and is formed in the horizontal and vertical directions by the pyramid pin hole shown in accompanying drawing 2, and pyramid pin hole bottom surface is that the length of side is
pthe square of=10mm, the reflecting polarizer II that the each side of pyramid pin hole is isosceles trapezoid, pair incident light transmission identical with its polarization direction of this reflecting polarizer II, and to the reflection of the orthogonal incident light in its polarization direction, the polarization direction of this reflecting polarizer II and reflecting polarizer I is orthogonal, an aperture is arranged at pyramid pin hole top, and this aperture aligns with pyramid pin hole bottom center.The length of side of the aperture at pyramid pin hole top is
q=2mm, the dutycycle of aperture
kby formula (1) calculate into
k=4%.
While showing 3D content on transluscent display panel, do not apply driving voltage on Polarization converter, Polarization converter does not change the polarization direction of incident light, and this contrive equipment is realized the integration imaging 3D demonstration of high brightness, as shown in Figure 3.As shown in the solid arrow in accompanying drawing 3, the polarized light transmission identical with its polarization direction that reflecting polarizer I is sent backlight, and the polarized light of orthogonal directions is reflexed in the diffusive reflective plate of backlight below, after the depolarization of the polarized light of reflection through diffusive reflective plate, become natural light, again incide in reflecting polarizer I, then having again half to be transmitted half is reflected, go round and begin again, all light that final backlight sends are all converted into the polarized light identical with reflecting polarizer I polarization direction.As shown in the dotted arrow in accompanying drawing 3, do not executing in alive situation, the polarization direction of the polarized light of Polarization converter to incident does not change, polarized light directly sees through Polarization converter and enters pyramid pinhole array, the polarized light that arrives the aperture at pyramid pinhole array top is gone out by aperture transmission, and the polarized light that arrives the reflecting polarizer II of pyramid pinhole array side is reflected back toward in the diffusive reflective plate of backlight below, polarized light repeatedly passes through the depolarization of diffusive reflective plate and transmission and the reflection of reflecting polarizer I, again enter into pyramid pinhole array, then again some polarized light by the aperture transmission at pyramid pinhole array top, part polarized light is reflected the reflection of polaroid II, go round and begin again, final all light all transmits by the aperture at pyramid pinhole array top, thereby promote the utilization factor of light.On transluscent display panel, show that integration imaging 3D shows required micro-pattern matrix, image primitive pitch is identical with the length of side of pyramid pin hole bottom surface, is all
p, and each image primitive and corresponding pyramid pin hole center-aligned, the light of the aperture transmission at pyramid pinhole array top is irradiated on micro-pattern matrix, obtains the integration imaging 3D display effect of high brightness.
While showing 2D content on transluscent display panel, apply driving voltage on Polarization converter, Polarization converter makes the polarization direction of incident light produce the rotation of 90 °, and this contrive equipment is realized 2D and shown, as shown in Figure 4.As shown in the solid arrow in accompanying drawing 4, the polarized light transmission identical with its polarization direction that reflecting polarizer I is sent backlight, and the polarized light of orthogonal directions is reflexed in the diffusive reflective plate of backlight below, after the depolarization of the polarized light of reflection through diffusive reflective plate, become natural light, again incide in reflecting polarizer I, then having again half to be transmitted half is reflected, go round and begin again, all light that final backlight sends are all converted into the polarized light identical with reflecting polarizer I polarization direction.As shown in the dotted arrow in accompanying drawing 4, Polarization converter makes the polarization direction of incident polarized light produce the rotation of 90 °, make the polarization direction of the polarized light that enters pyramid pinhole array identical with the polarization direction of reflecting polarizer II, all polarized lights that therefore arrive in pyramid pinhole array top aperture and offside reflection polaroid II are all directly transmitted.While showing 2D image on transluscent display panel, obtain 2D display effect.
The switchable integration imaging display device of a kind of high brightness 2D/3D that the present invention proposes, by changing the driving voltage of Polarization converter, has realized the changeable demonstration of 2D/3D.The light that backlight sends in the time that 3D shows multiple reflections and transmission between reflecting polarizer I, Polarization converter, reflecting polarizer II and diffusive reflective plate, is finally all transmitted by the aperture at pyramid pinhole array top, has improved the brightness that 3D shows.
Claims (2)
1. the switchable integration imaging display device of high brightness 2D/3D, is characterized in that, this device is made up of diffusive reflective plate, backlight, reflecting polarizer I, Polarization converter, pyramid pinhole array and transluscent display panel, diffusive reflective plate produces diffuse reflection effect to incident ray, pair incident light transmission identical with its polarization direction of reflecting polarizer I, and to reflecting with the orthogonal incident light in its polarization direction, pyramid pinhole array is equidistantly arranged and is formed in the horizontal and vertical directions by pyramid pin hole, and pyramid pin hole bottom surface is that the length of side is
psquare, the reflecting polarizer II that the each side of pyramid pin hole is isosceles trapezoid, pair incident light transmission identical with its polarization direction of this reflecting polarizer II, and to the reflection of the orthogonal incident light in its polarization direction, the polarization direction of this reflecting polarizer II and reflecting polarizer I is orthogonal, an aperture is arranged at pyramid pin hole top, and this aperture aligns with pyramid pin hole bottom center, and the length of side of the aperture at pyramid pin hole top is
q, the dutycycle of aperture
kfor
, while showing 3D content on transluscent display panel, on Polarization converter, do not apply driving voltage, Polarization converter does not change the polarization direction of incident light, the integration imaging 3D that this contrive equipment is realized high brightness shows, the polarized light transmission identical with its polarization direction that reflecting polarizer I is sent backlight, and the polarized light of orthogonal directions is reflexed in the diffusive reflective plate of backlight below, after the depolarization of the polarized light of reflection through diffusive reflective plate, become natural light, again incide in reflecting polarizer I, then having again half to be transmitted half is reflected, go round and begin again, all light that final backlight sends are all converted into the polarized light identical with reflecting polarizer I polarization direction, do not executing in alive situation, the polarization direction of the polarized light of Polarization converter to incident does not change, polarized light directly sees through Polarization converter and enters pyramid pinhole array, the polarized light that arrives the aperture at pyramid pinhole array top is gone out by aperture transmission, and the polarized light that arrives the reflecting polarizer II of pyramid pinhole array side is reflected back toward in the diffusive reflective plate of backlight below, polarized light repeatedly passes through the depolarization of diffusive reflective plate and transmission and the reflection of reflecting polarizer I, again enter into pyramid pinhole array, then again some polarized light by the aperture transmission at pyramid pinhole array top, part polarized light is reflected the reflection of polaroid II, go round and begin again, final all light all transmits by the aperture at pyramid pinhole array top, promote the utilization factor of light, on transluscent display panel, show that integration imaging 3D shows required micro-pattern matrix, image primitive pitch is identical with the length of side of pyramid pin hole bottom surface, be all
p, and each image primitive and corresponding pyramid pin hole center-aligned, the light of the aperture transmission at pyramid pinhole array top is irradiated on micro-pattern matrix, obtains the integration imaging 3D display effect of high brightness, while showing 2D content on transluscent display panel, on Polarization converter, apply driving voltage, Polarization converter makes the polarization direction of incident light produce the rotation of 90 °, this contrive equipment is realized 2D and is shown, Polarization converter makes the polarization direction of incident polarized light produce the rotation of 90 °, make the polarization direction of the polarized light that enters pyramid pinhole array identical with the polarization direction of reflecting polarizer II, the all polarized lights that arrive in pyramid pinhole array top aperture and offside reflection polaroid II are all directly transmitted, obtain 2D display effect, by changing the driving voltage of Polarization converter, realize the changeable demonstration of 2D/3D.
2. the switchable integration imaging display device of a kind of high brightness 2D/3D according to claim 1, is characterized in that the dutycycle of aperture in pyramid pin hole
kthe most suitable between 1% to 10%.
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| CN109870818A (en) * | 2019-03-12 | 2019-06-11 | 成都工业学院 | A kind of high brightness augmented reality 3D display device and method |
| CN111781734A (en) * | 2020-08-30 | 2020-10-16 | 成都工业学院 | Double-view 3D display device and method based on double display screens |
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| CN111781734A (en) * | 2020-08-30 | 2020-10-16 | 成都工业学院 | Double-view 3D display device and method based on double display screens |
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