CN103869488A - three-dimensional display - Google Patents
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- CN103869488A CN103869488A CN201410136206.7A CN201410136206A CN103869488A CN 103869488 A CN103869488 A CN 103869488A CN 201410136206 A CN201410136206 A CN 201410136206A CN 103869488 A CN103869488 A CN 103869488A
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- -1 aluminium tin-oxide Chemical compound 0.000 description 1
- JYMITAMFTJDTAE-UHFFFAOYSA-N aluminum zinc oxygen(2-) Chemical compound [O-2].[Al+3].[Zn+2] JYMITAMFTJDTAE-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention provides a stereoscopic display, which comprises a display panel, a barrier panel and a backlight module. The barrier panel is provided with a light transmitting area and a light shading area which are alternately arranged, and each light transmitting area comprises two refraction areas and a non-refraction area positioned between the refraction areas. The barrier panel comprises a first substrate, a second substrate, an optical anisotropic medium, a first electrode layer and a second electrode layer, wherein the first substrate and the second substrate are arranged oppositely, and the optical anisotropic medium is positioned between the two substrates. The first electrode layer is located between the first substrate and the optically anisotropic medium. The second electrode layer is located between the second substrate and the optically anisotropic medium. When the barrier panel is enabled, the phase delay of the optical anisotropic medium in the refractive region is between the phase delay in the shading region and the phase delay in the non-refractive region, so that the light passing through the refractive region is deflected towards the non-refractive region. The invention can maintain or improve the brightness of the three-dimensional display and can effectively reduce or adjust the degree of the afterimage.
Description
Technical field
The present invention relates to a kind of display, relate in particular to a kind of three-dimensional display.
Background technology
In recent years, along with the continuous progress of display technique, user is also more and more higher for the requirement of the display quality (as image analytic degree, color saturation etc.) of display.But, except hi-vision resolution and high color saturation, watch the demand of true picture in order to meet user, also develop the display that can demonstrate stereo-picture.
At present development faster also more ripe stereo display technique be spatial multiplexing technology (spatial-multiplexed technology).In the stereo display technique of spatial multiplexing, in order to set up three-dimensional image effect, often utilize disparity barrier (parallax barrier) or lens pillar in space, to form the different kens (viewing zone) to allow beholder's right eye and left eye receive respectively different images information.Wherein, barrier technology is more more ripe than lens technology again, is therefore widely used in commodity.
In general, use the conventional stereo display of disparity barrier and cannot ideally only allow right and left eyes receive the image information that receive, and conventionally having some wrong image informations and enter in eye.For instance, originally the image information of right eye should only allow right eye reception obtain, but also received by left eye owing to covering the imperfect image information that makes part right eye, therefore left eye can receive the image information of right and left eyes simultaneously, and this phenomenon is called ghost (X-talk).The main method that is used at present improving ghost phenomena is to increase shaded areas to reduce with the degree that makes ghost, but also can make transmission region reduce simultaneously.That is to say, along with the decline of aperture opening ratio (slit ratio) (that is, the minimizing of transmission region), although can make the degree of ghost reduce, the problem that also can cause brightness to decline simultaneously, and then affect display quality.Therefore, how in the situation that not changing aperture opening ratio, can effectively reduce the degree of ghost and maintain or improve brightness is that industry is endeavoured one of problem of studying.
Summary of the invention
In order to overcome the defect of prior art, the invention provides a kind of three-dimensional display, can maintain or improve brightness, and effectively reduce or adjust the degree of ghost.
The present invention proposes a kind of three-dimensional display, comprises display panel, barrier panel and backlight module.Display panel has the first relative side and the second side.Barrier panel is positioned at the first side of display panel, and barrier panel has multiple photic zones and multiple shading region of alternate configurations, and each photic zone comprises two refracting spheres and non-refracting sphere, and non-refracting sphere is between two refracting spheres.Barrier panel comprises first substrate, second substrate, optical anisotropy's medium, the first electrode layer and the second electrode lay.Second substrate is positioned at the subtend of first substrate.Optical anisotropy's medium is between first substrate and second substrate.The first electrode layer is disposed between first substrate and optical anisotropy's medium.The second electrode lay is disposed between second substrate and optical anisotropy's medium.The first electrode layer and the second electrode lay are set to, be enabled (enable) during in barrier panel, (while being unlocked) optical anisotropy medium, at the Retardation (Phase Retardation) of refracting sphere between the Retardation of shading region and the Retardation at non-refracting sphere, makes light by each refracting sphere outgoing towards corresponding non-refracting sphere deviation.Backlight module is positioned at the second side of display panel, in order to light to be provided.
Based on above-mentioned, in the situation that not changing aperture opening ratio, can make light concentrate towards non-refracting sphere owing to thering is refracting sphere in each photic zone, and make the optical anisotropy's medium that is positioned at photic zone of the present invention there is the effect of similar lens or prism, therefore the present invention can maintain or improve the brightness of three-dimensional display, and can effectively reduce or adjust the degree of ghost.
For above-mentioned feature and advantage of the present invention can be become apparent, special embodiment below, and coordinate accompanying drawing to be described in detail below.
Accompanying drawing explanation
Fig. 1 is the diagrammatic cross-section according to the three-dimensional display of the first embodiment of the present invention.
Fig. 2 be Fig. 1 barrier panel on look schematic diagram.
Fig. 3 A is the diagrammatic cross-section of the photic zone of the barrier panel of I-I ' along the line in Fig. 2.
Fig. 3 B is the schematic diagram that the Retardation of the barrier panel of Fig. 3 A while being enabled distributes.
Fig. 4 A is the diagrammatic cross-section according to the photic zone of the barrier panel of the second embodiment of the present invention.
Fig. 4 B is the schematic diagram that the Retardation of the barrier panel of Fig. 4 A while being enabled distributes.
Fig. 5 A is the diagrammatic cross-section according to the photic zone of the barrier panel of the third embodiment of the present invention.
Fig. 5 B is the schematic diagram that the Retardation of the barrier panel of Fig. 5 A while being enabled distributes.
Fig. 6 A is the diagrammatic cross-section according to the photic zone of the barrier panel of the fourth embodiment of the present invention.
Fig. 6 B is the schematic diagram that the Retardation of the barrier panel of Fig. 6 A while being enabled distributes.
Fig. 7 A is the diagrammatic cross-section according to the photic zone of the barrier panel of the fifth embodiment of the present invention.
Fig. 7 B is the schematic diagram that the Retardation of the barrier panel of Fig. 7 A while being enabled distributes.
The graph of relation of the display brightness that Fig. 8 is presented when watching three-dimensional display with different oblique viewing angles to oblique viewing angle.
The graph of relation of the ghost that Fig. 9 is presented when watching three-dimensional display with different oblique viewing angles to oblique viewing angle.
Wherein, description of reference numerals is as follows:
100: three-dimensional display
110: display panel
110a: the first side
110b: the second side
112: substrate
114: pel array
116: subtend substrate
118: display medium
120: barrier panel
120A: photic zone
120B: shading region
122: first substrate
124: the first electrode layers
124a: the first sub-electrode
124b: the first dielectric layer
126: second substrate
128: the second electrode lay
128a: the second sub-electrode
128b: the second dielectric layer
130: optical anisotropy's medium
140: backlight module
150: Retardation distributes
160: projection
160a: inclined-plane
210,220,310,320: curve
1202: refracting sphere
1202a: inferior refracting sphere
1204: non-refracting sphere
1242,1282: bottom electrode patterned layer
1244,1284: top electrode patterned layer
I-I ': line
L: light
X, Y, Z: direction
Embodiment
Fig. 1 is the diagrammatic cross-section according to the three-dimensional display of the first embodiment of the present invention, Fig. 2 be Fig. 1 barrier panel on look schematic diagram, Fig. 3 A is the diagrammatic cross-section of the photic zone of the barrier panel of I-I ' along the line in Fig. 2, and the schematic diagram that the Retardation of the barrier panel that Fig. 3 B is Fig. 3 A while being enabled distributes.
Referring to Fig. 1 to Fig. 3 B, three-dimensional display 100 comprises display panel 110, backlight module 140 and barrier panel 120.Three-dimensional display 100 is for example the 3 d display device that straight (portrait) display mode and/or horizontal type (landscape) display mode can be provided, or be for example the display device of switchable plane/solid (2D/3D), or other suitable 3 d display devices etc.
Optical anisotropy's medium 130 is between first substrate 122 and second substrate 126.Optical anisotropy's medium 130 is for example the medium with birefringence, for example liquid crystal molecule or other suitable materials.Take liquid crystal molecule as example, liquid crystal molecule has the first longitudinal refractive index (no) and the second longitudinal refractive index (ne) conventionally.Described the first longitudinal refractive index (no) generally can be described as again the minor axis refractive index of liquid crystal molecule, and described the second longitudinal refractive index (ne) can be described as again the major axis refractive index of liquid crystal molecule.And above-mentioned optical anisotropy's medium 130 can be along with the Electric Field Distribution in shielding panel 120 is arranged.In the present embodiment, optical anisotropy's medium 130 is for example to comprise multiple eurymeric liquid crystal molecules (not illustrating) or multiple negative type liquid crystal molecule (not illustrating).
The first electrode layer 124 is positioned on first substrate 122 and second substrate 126 respectively with the second electrode lay 128, and is the side near optical anisotropy's medium 130.That is to say, the first electrode layer 124 is disposed between first substrate 122 and optical anisotropy's medium 130, and the second electrode lay 128 is disposed between second substrate 126 and optical anisotropy's medium 130.Moreover in the present embodiment, the first electrode layer 124 is for example to comprise respectively multiple strip shaped electric poles that are arranged in parallel with each other with the second electrode lay 128, but the invention is not restricted to this.In other embodiments, the first electrode layer 124 can also be the patterned electrodes that comprises that respectively other are suitable with the second electrode lay 128.The first electrode layer 124 comprises transparent conductive material with the material of the second electrode lay 128, it is for example metal oxide, as indium tin oxide, indium-zinc oxide, aluminium tin-oxide, aluminium zinc oxide, indium germanium zinc oxide or other suitable oxide or above-mentioned at least two s' stack layer.
In the present embodiment, the first electrode layer 124 is arranged in shading region 120B and refracting sphere 1202, and the second electrode lay 128 is arranged in shading region 120B.Moreover in the present embodiment, the first electrode layer 124 and the second electrode lay 128 in the 120B of shading region are for example the electrode layers that is respectively simple layer, with penetrating of shield lights effectively, but the invention is not restricted to this.In other embodiments, the first electrode layer 124 in the 120B of shading region and the second electrode lay 128 can also be the electrode layers being respectively more than two-layer, as long as shading region 120B penetrating of shield lights effectively.In addition, the first electrode layer 124 in refracting sphere 1202 can be simple layer or two-layer more than electrode layer, as long as refracting sphere 1202 can make by the deflection of light of its outgoing.
In the time that barrier panel 120 is enabled (enable), the first electrode layer 124 provides the first electric field respectively with the second electrode lay 128 in non-refracting sphere 1204, transition electric field is provided in refracting sphere 1202, and provides the second electric field in the 120B of shading region.Moreover, in the direction perpendicular to barrier panel 120 (for example, in the time that barrier panel 120 is positioned on X-Y plane, described is Z direction perpendicular to the direction of barrier panel 120) upper, the intensity of transition electric field is between the intensity of the first electric field and the intensity of the second electric field.In the present embodiment, the intensity of transition electric field is for example the direction gradual change towards the second electric field along the first electric field.That is to say, the voltage distribution gradient of transition electric field, to make optical anisotropy's medium 130 in refracting sphere 1202 distribute along with the voltage of transition electric field distributes and is arranged in the Retardation (Phase Retardation) with gradual change.Due to the gradual change of Retardation, therefore can be because different phase differential produces the effect of refraction by the light L of refracting sphere 1202 outgoing.
In other words, in the present embodiment, can produce transverse electric field with the second electrode lay 128 that is positioned at shading region 120B by the first electrode layer 124 that extends to refracting sphere 1202, so that the direction perpendicular to barrier panel 120 (that is, Z direction) on, the intensity of transition electric field is for example the direction gradual change towards the second electric field along the first electric field, and then optical anisotropy's medium 130 in refracting sphere 1202 is distributed along with the voltage of transition electric field distributes and is arranged in the Retardation with gradual change.For instance, the intensity of the second electric field of shading region 120B is relatively large, and the intensity of the first electric field of non-refracting sphere 1204 is relatively little, and from shading region 120B towards the direction of non-refracting sphere 1204, the intensity of the transition electric field of refracting sphere 1202 reduces gradually, so that refractive index is reduced gradually.
Please refer to Fig. 3 B, as Retardation distributes as shown in the of 150, due to the allocation position of above-mentioned electrode of the present embodiment and the design of the Strength Changes of electric field, therefore the first electrode layer 124 is set to the second electrode lay 128, in the time that barrier panel 120 is enabled optical anisotropy's medium 130 at the Retardation of refracting sphere 1202 between the Retardation of shading region 120B and between the Retardation of non-refracting sphere 1204, with make light L by each refracting sphere 1202 outgoing can towards corresponding non-refracting sphere 1204 (that is, be positioned at the non-refracting sphere 1204 of same photic zone 120A) deviation.In the present embodiment, light L is for example the light being provided by backlight module 140, but the invention is not restricted to this.In other embodiments, light L can also be the light being provided by display panel 110.
It is worth mentioning that, in the situation that not changing aperture opening ratio, can make light L concentrate towards non-refracting sphere 1204 owing to thering is refracting sphere 1202 in each photic zone 120A, and make the optical anisotropy's medium 130 that is positioned at photic zone 120A of the present invention (that is, liquid crystal grating) there is the effect of similar lens or prism, therefore the present invention can maintain or improve the brightness of three-dimensional display 100, and can effectively reduce or adjust the degree of ghost (X-talk).In more detail, owing to thering is refracting sphere 1202 in each photic zone 120A, therefore can make light L refraction by the gradual change of transition electric field, effectively to make being concentrated the light field region (not illustrating) forming more concentrated by light L, also can make the area in light field region less.Thus, can promote the high-high brightness in light field region and dwindle the halfwidth of light field (not illustrating).Wherein, the overlapping area that namely can make between different light fields of dwindling of the halfwidth of light field reduces, and therefore can improve the spectrophotometric result between light field, and then can make the degree of ghost decline.
In addition, in the present embodiment, three-dimensional display 100 is for example also to comprise adhesive coating (not illustrating), in order to engage display panel 110 and shielding panel 120.Thus, after display panel 110 and shielding panel 120 are fitted, via the effect of shielding panel 120, beholder's left eye just can only be observed the pixel of playing left-eye image, right eye just can only be observed the pixel of playing eye image, and then produces three-dimensional image effect.Moreover three-dimensional display 100 is for example also to comprise polaroid (not illustrating), be disposed at respectively on the surface of display panel 110 and shielding panel 120.
In the embodiment of above-mentioned Fig. 1 to Fig. 3 B, be to illustrate as planar structure as example take the structure of two substrates of barrier panel 120, but the invention is not restricted to this.In other embodiments, can also be that the structure of at least one substrate of barrier panel 120 is nonplanar structure.
Fig. 4 A is the diagrammatic cross-section according to the photic zone of the barrier panel of the second embodiment of the present invention, and the schematic diagram that the Retardation of the barrier panel that Fig. 4 B is Fig. 4 A while being enabled distributes.The embodiment of Fig. 4 A to Fig. 4 B is similar to the embodiment of above-mentioned Fig. 1 to Fig. 3 B, and therefore same or analogous element represents with same or analogous symbol, and no longer repeat specification.The difference of the embodiment of Fig. 4 A to Fig. 4 B and the embodiment of above-mentioned Fig. 1 to Fig. 3 B is, the structure of the first substrate 122 of barrier panel 120 is nonplanar structure.
In more detail, please refer to Fig. 4 A, on the first substrate 122 of barrier panel 120, also dispose multiple projections (bump) 160.These projections 160 provide the inclined-plane 160a with respect to first substrate 122 in each refracting sphere 1202, and wherein the first electrode layer 124 in refracting sphere 1202 is positioned on inclined-plane 160a.The material of projection 160 is for example glass, quartz, organic polymer or other suitable materials.The material of projection 160 can be identical or different with the material of first substrate 122.In another embodiment, can also be that projection 160 is formed in one with first substrate 122.That is to say, the present invention is without particular limitation of material, shape and the quantity etc. of projection 160, as long as it can provide the inclined-plane 160a with respect to first substrate 122 in each refracting sphere 1202.In addition in other embodiments, can also be on second substrate 126, also to dispose multiple projections 160 or all dispose multiple projections 160 on first substrate 122 and second substrate 126.
Moreover, as the Retardation of Fig. 4 B distributes as shown in the of 150, due to the allocation position of above-mentioned electrode of the present embodiment and the design of the Strength Changes of electric field, therefore the first electrode layer 124 is set to the second electrode lay 128, in the time that barrier panel 120 is enabled optical anisotropy's medium 130 at the Retardation of refracting sphere 1202 between the Retardation of shading region 120B and between the Retardation of non-refracting sphere 1204, with make light L by each refracting sphere 1202 outgoing can towards corresponding non-refracting sphere 1204 (that is, be positioned at the non-refracting sphere 1204 of same photic zone 120A) deviation.
In the embodiment of above-mentioned Fig. 1 to Fig. 3 B, be take the first electrode layer 124 in refracting sphere 1202 as the electrode that extended to refracting sphere 1202 by shading region 120B as example illustrates, but the invention is not restricted to this.In other embodiments, can also be multiple sub-electrodes that at least one electrode layer in each refracting sphere 1202 comprises mutually insulated.
Fig. 5 A is the diagrammatic cross-section according to the photic zone of the barrier panel of the third embodiment of the present invention, and the schematic diagram that the Retardation of the barrier panel that Fig. 5 B is Fig. 5 A while being enabled distributes.The embodiment of Fig. 5 A to Fig. 5 B is similar to the embodiment of above-mentioned Fig. 1 to Fig. 3 B, and therefore same or analogous element represents with same or analogous symbol, and no longer repeat specification.The difference of the embodiment of Fig. 5 A to Fig. 5 B and the embodiment of above-mentioned Fig. 1 to Fig. 3 B is, the first electrode layer 124 in each refracting sphere 1202 comprises multiple sub-electrodes of mutually insulated.
In more detail, please refer to Fig. 5 A, each refracting sphere 1202 comprises multiple refracting sphere 1202a side by side.Moreover the first electrode layer 124 in each refracting sphere 1202 comprises multiple first sub-electrode 124a of mutually insulated.In the present embodiment, the first electrode layer 124 is arranged in shading region 120B and refracting sphere 1202, and above-mentioned the first sub-electrode 124a lays respectively in time refracting sphere 1202a, and the second electrode lay 128 is arranged in shading region 120B.In the time that barrier panel 120 is enabled, the first electrode layer 124 provides the first electric field respectively with the second electrode lay 128 in non-refracting sphere 1204, and provides the second electric field in the 120B of shading region.Each first sub-electrode 124a provides time transition electric field in each refracting sphere 1202a.
It is worth mentioning that, the direction perpendicular to barrier panel 120 (that is, Z direction) on, the intensity of multiple transition electric fields is between the intensity of the first electric field and the intensity of the second electric field, and the intensity of multiple transition electric fields is for example the direction gradual change towards the second electric field along the first electric field.Thus, in the present embodiment, can be by described multiple the different voltage differences of transition electric field are provided, so that optical anisotropy's medium 130 in refracting sphere 1202 is distributed along with the voltage of multiple transition electric fields distributes and is arranged in the Retardation with gradual change.For instance, the intensity of the second electric field of shading region 120B is relatively large, the intensity of the first electric field of non-refracting sphere 1204 is relatively little, and from shading region 120B towards the direction of non-refracting sphere 1204, the intensity of the inferior transition electric field of multiple refracting sphere 1202a reduces (being for example decreased to gradually 2 volts from 10 volts) gradually, so that refractive index is reduced gradually.
Moreover, as the Retardation of Fig. 5 B distributes as shown in the of 150, due to the allocation position of above-mentioned electrode of the present embodiment and the design of the Strength Changes of electric field, therefore the first electrode layer 124 is set to the second electrode lay 128, in the time that barrier panel 120 is enabled optical anisotropy's medium 130 at the Retardation of refracting sphere 1202 between the Retardation of shading region 120B and between the Retardation of non-refracting sphere 1204, with make light L by each refracting sphere 1202 outgoing can towards corresponding non-refracting sphere 1204 (that is, be positioned at the non-refracting sphere 1204 of same photic zone 120A) deviation.
In the embodiment of above-mentioned Fig. 1 to Fig. 5 B, being electrode layer take the electrode layer in refracting sphere 1202 as simple layer illustrates as example, but the invention is not restricted to this.In other embodiments, can also be that at least one electrode layer in refracting sphere 1202 has the electrode pattern layer more than two-layer.
Fig. 6 A is the diagrammatic cross-section according to the photic zone of the barrier panel of the fourth embodiment of the present invention, and the schematic diagram that the Retardation of the barrier panel that Fig. 6 B is Fig. 6 A while being enabled distributes.The embodiment of Fig. 6 A to Fig. 6 B is similar to the embodiment of above-mentioned Fig. 5 A to Fig. 5 B, and therefore same or analogous element represents with same or analogous symbol, and no longer repeat specification.The difference of the embodiment of the embodiment of Fig. 6 A to Fig. 6 B and above-mentioned Fig. 5 A to Fig. 5 B is, the first electrode layer 124 in refracting sphere 1202 has two-layer electrode pattern layer.
In more detail, please refer to Fig. 6 A, the first electrode layer 124 in each refracting sphere 1202 also comprises the first dielectric layer 124b, and the first sub-electrode 124a is arranged alternately in the both sides up and down of the first dielectric layer 124b.That is to say, the first electrode layer 124 in refracting sphere 1202 has two-layer electrode pattern layer, and wherein said two-layer electrode pattern layer comprises bottom electrode patterned layer 1242 and top electrode patterned layer 1244.Each electrode pattern layer comprises multiple the first sub-electrode 124a that are positioned at each refracting sphere 1202 and mutually insulated.Due to the first sub-electrode 124a of bottom electrode patterned layer 1242 and the first sub-electrode 124a configuration interlaced with each other of top electrode patterned layer 1244, the first sub-electrode 124a that therefore can make to belong to respectively different retes (comprising bottom electrode patterned layer 1242 and top electrode patterned layer 1244) is spatially overlapping.Thus, can make bottom electrode patterned layer 1242 and top electrode patterned layer 1244 be able to close-packed arrays, and then can avoid light leak and colour cast and can there is preferably stereo display effect.
In addition, in the present embodiment, the first dielectric layer 124b has covered bottom electrode patterned layer 1242, and top electrode patterned layer 1244 is positioned on the first dielectric layer 124b.That is, bottom electrode patterned layer 1242 is between first substrate 122 and the first dielectric layer 124b, the first dielectric layer 124b is between bottom electrode patterned layer 1242 and top electrode patterned layer 1244, and top electrode patterned layer 1244 is between the first dielectric layer 124b and optical anisotropy's medium 130.In the present embodiment, the first dielectric layer 124b covers first substrate 122 and bottom electrode patterned layer 1242 all sidedly, but the invention is not restricted to this.In other embodiments, can also be that the first dielectric layer 124b only covers the bottom electrode patterned layer 1242 in each refracting sphere 1202, if the first dielectric layer 124b between bottom electrode patterned layer 1242 and top electrode patterned layer 1244 so that both can be electrically insulated these in each refracting sphere 1202.
Moreover, as the Retardation of Fig. 6 B distributes as shown in the of 150, due to the allocation position of above-mentioned electrode of the present embodiment and the design of the Strength Changes of electric field, therefore the first electrode layer 124 is set to the second electrode lay 128, in the time that barrier panel 120 is enabled optical anisotropy's medium 130 at the Retardation of refracting sphere 1202 between the Retardation of shading region 120B and between the Retardation of non-refracting sphere 1204, with make light L by each refracting sphere 1202 outgoing can towards corresponding non-refracting sphere 1204 (that is, be positioned at the non-refracting sphere 1204 of same photic zone 120A) deviation.
Fig. 7 A is the diagrammatic cross-section according to the photic zone of the barrier panel of the fifth embodiment of the present invention, and the schematic diagram that the Retardation of the barrier panel that Fig. 7 B is Fig. 7 A while being enabled distributes.The embodiment of Fig. 7 A to Fig. 7 B is similar to the embodiment of above-mentioned Fig. 6 A to Fig. 6 B, and therefore same or analogous element represents with same or analogous symbol, and no longer repeat specification.The difference of the embodiment of the embodiment of Fig. 7 A to Fig. 7 B and above-mentioned Fig. 6 A to Fig. 6 B is, not only the first electrode layer 124 in refracting sphere 1202 has two-layer electrode pattern layer, and the second electrode lay 128 in refracting sphere 1202 also has two-layer electrode pattern layer.
In more detail, please refer to Fig. 7 A, the second electrode lay 128 in each refracting sphere 1202 also comprises the second dielectric layer 128b, and the second sub-electrode 128a is arranged alternately in the both sides up and down of the second dielectric layer 128b.That is to say, the second electrode lay 128 in refracting sphere 1202 has two-layer electrode pattern layer, and wherein said two-layer electrode pattern layer comprises bottom electrode patterned layer 1282 and top electrode patterned layer 1284.Each electrode pattern layer comprises multiple the second sub-electrode 128a that are positioned at each refracting sphere 1202 and mutually insulated, wherein the second sub-electrode 128a configuration interlaced with each other of the second sub-electrode 128a of bottom electrode patterned layer 1282 and top electrode patterned layer 1284, the second sub-electrode 128a that therefore can make to belong to respectively different retes (comprising bottom electrode patterned layer 1282 and top electrode patterned layer 1284) is spatially overlapping.Thus, can make bottom electrode patterned layer 1282 and top electrode patterned layer 1284 be able to close-packed arrays, and then can avoid light leak and colour cast and can there is preferably stereo display effect.
In addition, in the present embodiment, the second dielectric layer 128b has covered bottom electrode patterned layer 1282, and top electrode patterned layer 1284 is positioned on the second dielectric layer 128b.That is, bottom electrode patterned layer 1282 is between second substrate 126 and the second dielectric layer 128b, the second dielectric layer 128b is between bottom electrode patterned layer 1282 and top electrode patterned layer 1284, and top electrode patterned layer 1284 is between the second dielectric layer 128b and optical anisotropy's medium 130.In the present embodiment, the second dielectric layer 128b covers second substrate 126 and bottom electrode patterned layer 1282 all sidedly, but the invention is not restricted to this.In other embodiments, can also be that the second dielectric layer 128b only covers the bottom electrode patterned layer 1282 in each refracting sphere 1202, if the second dielectric layer 128b between bottom electrode patterned layer 1282 and top electrode patterned layer 1284 so that both can be electrically insulated these in each refracting sphere 1202.
Moreover, as the Retardation of Fig. 7 B distributes as shown in the of 150, due to the allocation position of above-mentioned electrode of the present embodiment and the design of the Strength Changes of electric field, therefore the first electrode layer 124 is set to the second electrode lay 128, in the time that barrier panel 120 is enabled optical anisotropy's medium 130 at the Retardation of refracting sphere 1202 between the Retardation of shading region 120B and between the Retardation of non-refracting sphere 1204, with make light L by each refracting sphere 1202 outgoing can towards corresponding non-refracting sphere 1204 (that is, be positioned at the non-refracting sphere 1204 of same photic zone 120A) deviation.
For the design that proves the photic zone 120A with refracting sphere 1202 of the present invention can improve the brightness of three-dimensional display 100 really, and reduce the degree of ghost, spy verifies with a simulated experiment.The experimental example of this simulated experiment is the three-dimensional display with refracting sphere 1,202 100 shown in above-mentioned Fig. 1 to Fig. 3 B, and comparative example is the three-dimensional display without refracting sphere.Moreover, in simulated experiment, the aperture opening ratio of the three-dimensional display of experimental example and comparative example be all 33% (that is, the ratio of photic zone 120A and shading region 120B is respectively 33% and 67%), and the refracting sphere 1202 of the three-dimensional display of experimental example is respectively 4.45% and 28.55% with the ratio of non-refracting sphere 1204.The voltage that other related experiment conditions of the three-dimensional display of experimental example and comparative example comprise that optical anisotropy's medium is that stable twisted nematic liquid crystal (TC-LC), the second longitudinal refractive index (ne) are 1.711, the first longitudinal refractive index (no) is 1.510, cel-gap (cell gap) is 15 μ m, first substrate 122 is that 7 volts, the voltage of second substrate 126 are that the periodic width of 0 volt and grating (barrier) is 480 μ m.In addition, external environment is set as comprising four sub-pixels under the cycle, and the thickness of grating is 1800 μ m, and views and admires distance for 2200mm.
Fig. 8 is the display brightness (unit is lumen (lumen)) that presented in the time that different oblique viewing angles the are watched three-dimensional display graph of relation to oblique viewing angle (unit is degree).Different oblique viewing angles refers to positive visual angle (0 degree) when datum line (being normal), the angle between user's direction of observation and datum line.In Fig. 8, the three-dimensional display that curve 210 is experimental example, and the three-dimensional display that curve 220 is comparative example.As shown in Figure 8, at the crest place of these curves, the brightness of curve 210 (experimental example) is all greater than the brightness of curve 220 (comparative example).Therefore, Fig. 8 can learn thus, the brightness of experimental example (having the three-dimensional display 100 of refracting sphere 1202) is greater than the brightness of comparative example (not having the three-dimensional display of refracting sphere), and wherein the brightness of the three-dimensional display of experimental example increases by 5.13% compared to the brightness of the three-dimensional display of comparative example.
Fig. 9 is the ghost (unit is as %) that presented in the time that different oblique viewing angles the are watched three-dimensional display graph of relation to oblique viewing angle (unit is degree).Different oblique viewing angles refers to positive visual angle (0 degree) when datum line (being normal), the angle between user's direction of observation and datum line.In Fig. 9, the three-dimensional display that curve 310 is experimental example, and the three-dimensional display that curve 320 is comparative example.As shown in Figure 9, at the trough place of these curves, the ghost of curve 310 (experimental example) is all less than the ghost of curve 320 (comparative example).Therefore, Fig. 9 can learn thus, the ghost of experimental example (having the three-dimensional display 100 of refracting sphere 1202) is less than the ghost of comparative example (not having the three-dimensional display of refracting sphere), and wherein the ghost of the three-dimensional display of experimental example reduces 10.94% compared to the ghost of the three-dimensional display of comparative example.
In sum, in three-dimensional display of the present invention, the first electrode layer and the second electrode lay are set to, in the time that barrier panel is enabled, (while being unlocked) optical anisotropy medium, at the Retardation of refracting sphere between the Retardation of shading region and the Retardation at non-refracting sphere, makes light by each refracting sphere outgoing towards corresponding non-refracting sphere deviation.Thus, in the situation that not changing aperture opening ratio, can make light concentrate towards non-refracting sphere owing to thering is refracting sphere in each photic zone, and make the optical anisotropy's medium that is positioned at photic zone of the present invention (that is, liquid crystal grating) there is the effect of similar lens or prism, therefore the present invention can maintain or improve the brightness of three-dimensional display, and can effectively reduce or adjust the degree of ghost.
Although the present invention discloses as above with embodiment; so it is not in order to limit the present invention; any those of ordinary skills; without departing from the spirit and scope of the present invention; when doing a little change and retouching, therefore working as the scope defining depending on appended claim, protection scope of the present invention is as the criterion.
Claims (10)
1. a three-dimensional display, comprising:
One display panel, has one first relative side and one second side;
One barrier panel, be positioned at this first side of this display panel, this barrier panel has multiple photic zones and multiple shading region of alternate configurations, and each photic zone comprises two refracting spheres and a non-refracting sphere, this non-refracting sphere is between this two refracting sphere, and this barrier panel comprises:
One first substrate;
One second substrate, is positioned at the subtend of this first substrate;
One optical anisotropy's medium, between this first substrate and this second substrate;
One first electrode layer, is disposed between this first substrate and this optical anisotropy's medium; And
One the second electrode lay, be disposed between this second substrate and this optical anisotropy's medium, wherein this first electrode layer and this second electrode lay are set to, in the time that this barrier panel is enabled, this optical anisotropy's medium, at the Retardation of described multiple refracting spheres between the Retardation of described multiple shading regions and the Retardation at described multiple non-refracting spheres, makes a light by respectively this refracting sphere outgoing towards corresponding this non-refracting sphere deviation; And
One backlight module, is positioned at this second side of this display panel, in order to this light to be provided.
2. three-dimensional display as claimed in claim 1, when wherein this barrier panel is enabled, this first electrode layer and this second electrode lay provide one first electric field respectively in described multiple non-refracting spheres, one transition electric field is provided in described multiple refracting spheres, in described multiple shading regions, provide one second electric field, and the intensity of this transition electric field in the direction of vertical this barrier panel is between the intensity of this first electric field and the intensity of this second electric field.
3. three-dimensional display as claimed in claim 2, wherein the intensity of this transition electric field is the direction gradual change towards this second electric field along this first electric field.
4. three-dimensional display as claimed in claim 1, wherein this first electrode layer is arranged in described multiple shading region and described multiple refracting sphere, and this second electrode lay is arranged in described multiple shading region.
5. three-dimensional display as claimed in claim 4, also comprise multiple projections, be disposed on this first substrate, and provide the multiple inclined-planes with respect to this first substrate in described multiple refracting spheres, this first electrode layer in wherein said multiple refracting spheres is positioned on described multiple inclined-plane.
6. three-dimensional display as claimed in claim 4, wherein respectively this refracting sphere comprises multiple refracting spheres side by side, and this first electrode layer in each this refracting sphere comprises multiple first sub-electrodes of mutually insulated, and described multiple the first sub-electrodes lay respectively in described multiple refracting spheres.
7. three-dimensional display as claimed in claim 6, wherein this first electrode layer in each this refracting sphere also comprises one first dielectric layer, and described multiple the first sub-electrode is arranged alternately the both sides up and down in this first dielectric layer.
8. three-dimensional display as claimed in claim 6, wherein this second electrode lay also extends in described multiple refracting sphere, and this second electrode lay in each this refracting sphere comprises multiple second sub-electrodes of mutually insulated, and described multiple the second sub-electrodes lay respectively in described multiple refracting spheres.
9. three-dimensional display as claimed in claim 8, wherein this second electrode lay in each this refracting sphere also comprises one second dielectric layer, and described multiple the second sub-electrode is arranged alternately the both sides up and down in this second dielectric layer.
10. three-dimensional display as claimed in claim 1, the shape of wherein said multiple photic zones comprises rectangle, square, trapezoidal, circular, oval, triangle, rhombus or polygon.
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| TW103101702A TWI522651B (en) | 2014-01-17 | 2014-01-17 | Stereo display device |
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| WO2018188301A1 (en) * | 2017-04-11 | 2018-10-18 | 京东方科技集团股份有限公司 | Display substrate and manufacturing method therefor, and display apparatus |
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| TW201530190A (en) | 2015-08-01 |
| CN103869488B (en) | 2017-04-12 |
| TWI522651B (en) | 2016-02-21 |
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