TWI505243B - A device that can display 2D and 3D images at the same time - Google Patents

Description

Device capable of simultaneously displaying 2D and 3D images

For a 3D Advertising Lighting Box (hereinafter referred to as a 3D light box), a lens array component (hereinafter referred to as a Lenticular component) is generally used to display a 3D still image of a naked eye to achieve a 3D dedicated light box. . For the 3D dedicated light box, the present invention provides a device capable of simultaneously displaying 2D and 3D images, so as to increase the function of the conventional 3D light box image display, thereby greatly improving the effectiveness of the advertisement.

As shown in FIGS. 1 and 2, a schematic diagram of a conventional 3D light box configuration and a 3D still image display is shown. The conventional 3D light box 1 is mainly composed of a lens array element 10, a 3D multi-view composite image 20, and a backlight 30.

As shown in FIG. 2, the Lenticular element 10 is composed of a sheet-like transparent plastic material, one side of which is referred to as a 3D structural surface 11 and has a structure of a plurality of cylindrical lenses; and the other side is Referring to the printing surface 12, the 3D multi-view combined 3D image 20 is printed on the printing surface 12 by a process of lithography. The 3D multi-view synthesized image 20 is composed of n single view images V _K , wherein n is the total number of views, k is the number of view numbers, and 0≦k ≦n-1.

As shown in FIG. 2, for the 3D multi-view synthesized image 20, the illumination of the backlight 30 and the view separation of the Lenticular element 10 can be used for optimal viewing distance Z ₀ (Optimum Viewing Distance, OVD). At the top of the Optimum Viewin Point (OVP) P _k , a single view image V _{k is} presented individually.

For the viewer whose left eye L and right eye R are located on the optimal viewpoints P _k , P _k+1 , the viewer's left eye L and right eye R can individually view a pair of parallaxes. Single view images V _k , V _k+1 . Therefore, the viewer can view a 3D image. Here, in order to clearly show the relationship between each display structure and the viewing-related position, a calibration system XYZ is set, and the X-axis system is set in the horizontal direction, the Y-axis is set in the vertical direction, and the Z-axis is perpendicular to the 3D structure. The surface 11 is set, and Z=0 is set on the 3D structural surface 11. Therefore, the related viewing position is located in the area of Z>0.

However, the existing technology of naked vision, that is, the technology of Auto-Stereoscopic, whether using Lentuclar or Parallel Barrier, has the problem of limited viewing freedom (Viewing Freedom), that is, as shown in the figure. As shown in Fig. 3, for any optimal viewpoint P _k , there is a single viewable area 13 in which the viewer can view a better 3D image in the limited area (such as the area shown by the diamond). Preferably, the so-called 3D image, means in the visible region within a single 13, the viewer views the single view image V _k in which it has a ghost (Cross-talk) to a lesser extent. Generally, when the ghost ratio is less than 10%, the viewer is not aware of its existence, so that a better 3D image can be viewed. Therefore, the use of the technology of naked vision, as a 3D light box application, due to the lack of limited viewing freedom, will seriously reduce the effectiveness of advertising.

In view of the above-mentioned shortcomings, the present invention provides a device capable of simultaneously displaying 2D and 3D images, which can increase the function of image display of the 3D light box, and greatly improve the effectiveness of the advertisement. The device of the present invention can simultaneously display 2D and 3D images, and is mainly composed of a first light source component, a first 2D image component, a parallax barrier component, a Lenticular component, and a second 3D multi-view. The composite image element is constructed with a second light source element. Wherein, the parallax barrier element and the Lenticular element have an equivalent view separation function, and the second 3D multi-view synthesis image element can provide a consistent optimal viewing distance and an optimal viewing point, that is, The same single view image is provided for the same best viewing distance and the same best view point. Therefore, the first 2D image element is illuminated by the first light source element, and the viewer can view the 2D image provided by the first 2D image element; and the second light source element transmits the second light source element The illumination of the two 3D multi-view synthetic image components allows the viewer to view a 3D image at the best viewing point of the best viewing distance. Therefore, when the viewer is standing at the best viewing distance, 2D and 3D images can be viewed simultaneously.

In summary, by using the 3D advertising light box formed by the method and the device, In addition to the 3D light box, it also retains the functionality of the original 2D light box. Therefore, in addition to achieving unprecedented visual effects, it can also create the benefits of unlimited advertising.

1‧‧‧3D light box

10‧‧‧Lenticular

11‧‧‧3D structural surface

12‧‧‧Printed surface

13‧‧‧Single viewable area

20‧‧‧3D multi-view synthetic image

30‧‧‧ Backlight

100‧‧‧Composition of an embodiment of the invention

110‧‧‧First light source component

120‧‧‧First 2D image components

130‧‧‧Disparity grating components

131‧‧‧Disparity grating structure

131a‧‧ ‧ shading elements

131b‧‧‧Lighting element

132‧‧‧Transparent substrate

140‧‧‧Lenticular components

141‧‧‧ lenticular lens

142‧‧‧round surface

150‧‧‧Second 3D multi-view synthetic image element

151‧‧‧3D multi-view synthetic image

152‧‧‧ Transparent substrate

160‧‧‧Second light source components

N‧‧‧ total number of views

V ₀ , V _k , V _k+1 , V _n-1 ‧‧‧Single view image

K‧‧ Sight number

P ₀ , P _k , P _k+1 , P _n-1 ‧‧‧ best viewpoint

L‧‧‧Left eye

R‧‧‧Right eye

X, Y, Z‧‧‧ coordinate system

, ‧‧‧shading element horizontal width

B, B'‧‧‧Lighting element horizontal width

Θ‧‧‧ tilt angle

L _B ‧‧‧ installation distance

P _B ‧‧‧The width of the parallax barrier unit structure

Z ₀ ‧‧‧Best viewing distance

OVP (L), OVP (R) ‧ ‧ best viewpoint

L‧‧‧left view image

R‧‧‧Right view

F‧‧‧ lenticular lens focal length

P _L ‧‧‧The width of the cylindrical lens unit structure

r‧‧‧The radius of the circular surface of the cylindrical lens

1 to 2 show a schematic diagram of a conventional 3D light box configuration and a 3D still image display.

Figure 3 is a schematic diagram of the separation of the visual field.

4 is a schematic diagram showing the relationship between the present invention and 2D and 3D image display.

Figure 5 is a schematic view showing a specific constitution of the present invention.

6 to 8 are schematic views showing the constitution of a parallax barrier element.

9 to 10 are schematic views showing the structure of Lenticular elements.

FIG. 11 is a schematic diagram showing a process of fabricating a 2D image element and a parallax barrier element.

FIG. 12 is a schematic diagram showing a process of fabricating a 2D image element, a parallax barrier element, and a 3D multi-view synthetic image element.

As shown in FIG. 4, the present invention constitutes a schematic diagram showing the relationship between display and 2D and 3D images. The device 100 for simultaneously displaying 2D and 3D images, in the order of the device, is mainly composed of a first light source element 110, a first 2D image element 120, a parallax barrier element 130, a Lenticular element 140, and a first The two 3D multi-view synthetic image elements 150 are combined with a second light source element 160. The parallax barrier element 130 and the Lenticular element 140 have an equivalent view separation function, and the second 3D multi-view synthesis image element 150 can provide a consistent optimal viewing distance and an optimal viewing point. that is, at the same optimum viewing distance Z _0, of the same at the optimum viewing point P _k, to provide the same single view image V _k.

Therefore, the first 2D image element 120 is illuminated by the first light source element 110, and the viewer can view the 2D image provided by the first 2D image element 120 in the area of Z>0; Through the second light source element 160, the illumination of the second 3D multi-view composite image element 150 can be viewed when the eyes of the viewer are individually aligned to the optimal viewpoint P _k , P _k+1 . A 3D image.

FIG. 5 is a schematic view showing a specific constitution of the present invention.

The first light source component 110 is formed by a visible light source for illuminating the first 2D image component 120, and is composed of a natural light source and an artificial light source. The natural light source refers to sunlight, which is a light source used for the daytime of the device of the present invention. In addition, the artificial light source is composed of a luminaire (not shown) illuminated by an advertising kanban, which is a light source used at night for the device of the present invention; For the brightness control of the luminaire, the first 2D image element 120 can be illuminated with different brightness, and the first 2D image element 120 can be displayed and not displayed by controlling the opening and closing of the luminaire.

The first 2D image element 120 is composed of a 2D image having the same structure as the parallax barrier structure 131, and is disposed on the parallax barrier element 130.

The parallax barrier element 130, as shown in FIG. 6, is composed of a parallax barrier structure 131 and a transparent substrate 132. The parallax barrier structure 131 is formed on one surface of the transparent substrate 132 and is composed of a plurality of light shielding elements 131a and a plurality of light transmitting elements 131b.

As shown in FIG. 7 to FIG. 8 , the light shielding elements 131 a and the light transmissive elements 131 b may have vertical strip or oblique strip structure features, and have individual , the horizontal width of B. The single light-shielding element 131a and the single light-transmitting element 131b form a unit structure of a parallax barrier and have a unit structure width P _B as shown in the following formula: In addition, according to the Republic of China Patent Application No.: 98128986, B has the following relationship: Where n is the total number of views. In addition, the parallax barrier structure 131 provides a view separation function for displaying the 3D image for the multi-view synthesis image before the second 3D multi-view synthesis image element 150 is installed at a mounting distance L _B .

As shown in FIGS. 9-10, the Lenticular element 140 is composed of a plurality of lenticular lenses 141 having a circular surface 142 which may have a vertical strip shape or a slope. A columnar lens having a strip-like structural feature; wherein r is a radius of the circular surface 142, f is a focal length of the single lenticular lens 141, and P _{L is} a unit structure of the single lenticular lens 141 The width, θ is the inclination angle of the single lenticular lens 141. According to the Republic of China Patent Application No. 101135830, for the Lenticular element 140 and the parallax barrier element 130, when f, P _L , L _B , P _B between the two have the relationship shown by the following formula , the equivalent view separation can be achieved.

f=L _B (3)

P _L =P _B (4)

In fact, for the structure of the component stack as shown in FIG. 5, the parallax barrier element 130 has a slight thickness due to the transparent substrate 132. In the actual optical design, the parallax barrier structure has a mounting distance L _{B which} is slightly larger than The focal length f of the lenticular lenses. In addition, the center position of the light transmissive element 131b also needs to be aligned with the center position of the unit structure of the single lenticular lens 141 to achieve the best equivalent view separation.

The second 3D multi-view synthetic image element 150 is composed of a 3D multi-view synthesized image 151 and a transparent substrate 152.

The second light source component 160 is composed of a white visible light source for synthesizing the image component 150 according to the second 3D multi-view image, which can be constructed by the technology of a backlight module (not shown). The utility model is composed of a plurality of white LEDs, a light guide plate, a plurality of diffusion sheets, and a plurality of brightness enhancement films; and, by controlling the brightness of the white LEDs, the second 3D can be illuminated with different brightness. The visual composite image element 150 can also achieve the purpose of displaying and not displaying the second 3D multi-view composite image element 150 by controlling the on and off of the white LEDs.

Hereinafter, the fabrication of the first 2D video element 120, the parallax barrier element 130, the Lenticular element 140, and the second 3D multi-view synthesized video element 150 will be described.

As shown in FIG. 6, the parallax barrier structure 131 can be fabricated by a precision process such as photolithography, letterpress transfer, or gravure transfer, and the light-shielding elements 131a and the light-transmitting elements 131b can be copied. One side of the transparent substrate 132. Alternatively, a non-transparent film (not shown) may be applied to one surface of the transparent substrate 132. The color of the non-transmissive film may be white, silver, or black, and the alignment may be utilized. Technology and a precision positioning laser engraving machine (not shown) for this non-transparent a film, and corresponding to the existence of the plurality of light-transmitting elements 131b, to hollow out the non-transmissive film at the location, to complete the fabrication of the plurality of light-transmitting elements 131b, the parallax barrier structure 131 can be completed The production of components.

For the fabrication of the first 2D image element 120, in order to simplify the process and reduce the cost, the parallax barrier structure 131 can be simultaneously fabricated through the techniques of coating, digital printing and laser engraving, and installed on the transparent substrate. One side of the material 132. As shown in FIG. 11, a non-transparent parallax barrier structure 131 is coated on one surface of the transparent substrate 132, and a 2D image is printed on the parallax barrier structure 131 by digital printing. Finally, the alignment technology and a precision positioning laser engraving machine (not shown) are used for the non-transparent film and the 2D image, and corresponding to the existence of the plurality of light transmissive elements 131b, to dig The operation of the space is performed to complete the fabrication of the plurality of light transmissive elements 131b and the first 2D image element 120 at the same time.

For the production of the Lenticular element 140, a single component of the Lenticular element 140 can be fabricated by a roll-to-roll process or a hot stamp process.

For the second 3D multi-view synthetic image element 150, the 3D multi-view composite image 151 can be printed on the lithographic printing, digital printing, etc., and using a permeable color ink. The surface of the transparent substrate 152.

In addition, in order to simplify the structure and reduce the cost, the first 2D image element 120, the parallax barrier element 130, and the second 3D multi-view composite image element 150 are fabricated by coating, digital printing, Techniques such as alignment and laser engraving are applied to both sides of the Lenticular element 140. As shown in FIG. 12, a lens structure surface 142b of the Lenticular element 140 is coated with a non-transparent parallax barrier structure 131, and a 2D image is printed on the parallax barrier structure 131 by digital printing. Finally, finally, a pair of positioning techniques and a precision positioning laser engraving machine (not shown) are used for the non-transmissive film and the 2D image, and corresponding to the presence of the plurality of light transmissive elements 131b, The operation of the portion is hollowed out to simultaneously complete the fabrication of the plurality of light transmissive elements 131b and the first 2D image element 120. In addition, for the non-lens structure surface of the Lenticular element 140, the 3D can be processed by using a one-bit technology and a digital printing process, and using a light-transmissive color ink. A multi-view synthesized image 151 is printed on the non-lens structure surface.

In addition, the light-shielding elements 131a and the light-transmitting elements 132b described in the above embodiments have the effect of providing an aperture in addition to the equivalent view separation. That is, the horizontal width of the light-shielding members 131a and the light-transmitting members 132b are changed by maintaining the unit structure width P _B unchanged. , B, for example: And let B '> B and < among them, After the B's are changed, the horizontal widths of the light-shielding elements 131a and the light-transmitting elements 132b can simultaneously improve the phenomenon of ghosting generated by the Lenticular element 140 and improve the brightness of the parallax barrier element 130.

The above description is only a preferred embodiment of the present invention, and the scope of the present invention cannot be limited thereto, for example, by using different process technologies to produce the 2D image element, the parallax barrier element, and the lens. The array elements, the 3D multi-view synthetic image elements, that is, the equivalent variations and modifications made by the invention in accordance with the scope of the present invention should still fall within the scope of the present invention. I would like to ask your review board member to give a clear explanation and pray for it. It is the prayer.

100‧‧‧Composition of an embodiment of the invention

110‧‧‧First light source component

120‧‧‧First 2D image components

130‧‧‧Disparity grating components

140‧‧‧Lenticular components

150‧‧‧Second 3D multi-view synthetic image element

160‧‧‧Second light source components

V ₀ , V _k , V _k+1 , V _n-1 ‧‧‧Single view image

Z ₀ ‧‧‧Best viewing distance

P ₀ , P _k , P _k+1 , P _n-1 ‧‧‧ best viewpoint

X, Y, Z‧‧‧ coordinate system

OVD‧‧‧Optimum Viewing Distance

Claims (15)

A device capable of simultaneously displaying 2D and 3D images, which is mainly composed of the following components in order of installation: a first light source component for generating an illumination source; and a first 2D image component for providing a 2D image; a parallax barrier element for providing a view separation; a lens array element for providing a view separation; and a second 3D multi-view synthesis image element for providing a 3D multi Vision synthesis image; a second light source component for generating an illumination source; wherein the parallax barrier element and the lens array component have an equivalent view separation function, and the second 3D multi-view is Synthesizing the image element to provide a consistent optimal viewing distance and an optimal viewing point; further, illuminating the first 2D image element through the first light source element to display the 2D image; and transmitting the second light source element Illuminating the second 3D multi-view synthetic image element to display the 3D multi-view synthesized image; and the effect of the equivalent view separation for the parallax barrier element and the lens array a column element, when f, P _L , L _B , P _B between the two, has L _B slightly greater than f, and P _L = P _B , and the central position of the light transmissive element and the single columnar shape When the central position of the lens unit structure has a uniform relationship, the parallax barrier element and the lens array element may have the effect of the equivalent view separation. The apparatus for displaying a three-dimensional image according to claim 1, wherein the first light source component is composed of a natural light source and an artificial light source, wherein the natural light source is composed of sunlight; The artificial light source is composed of one of the illuminators of the advertising kanban illumination. By controlling the brightness of the luminaire, the first 2D image component can be illuminated with different brightness, and the opening and closing of the luminaire can also be controlled. To display and not display the first 2D image element. The apparatus for displaying a three-dimensional image according to claim 1, wherein the parallax barrier element is composed of a parallax barrier structure and a transparent substrate, The parallax barrier structure is disposed on one surface of the transparent substrate and is composed of a plurality of light shielding elements and a plurality of light transmitting elements. The apparatus for displaying a three-dimensional image according to claim 3, wherein the single shading element and the single light transmissive element have a vertical strip shape or an oblique strip structure feature, and each has The horizontal width of B, in addition, the single shading element and the single light transmissive element constitute a unit structure of a parallax barrier, and has a unit structure width P _B , , B, P _B have the following relationship: Wherein, n is the total number of views; in addition, the parallax barrier structure is provided with a mounting distance L _B before the second 3D multi-view synthetic image component, and the visual separation is provided for the multi-view synthesized image. Function to display 3D images. The apparatus for displaying a three-dimensional image according to claim 1, wherein the lens array element is composed of a plurality of cylindrical lenses, the single cylindrical lens having a circular surface And a cylindrical lens having a vertical strip shape or an oblique strip structure; wherein the single cylindrical lens has a lens focal length f and a unit structure width P _L . The apparatus for displaying a three-dimensional image according to claim 1, wherein the 2D image of the 2D image element has the same structure as the parallax barrier element. A device for displaying a three-dimensional image according to claim 1, wherein the second 3D multi-view synthetic image element is composed of a 3D multi-view synthetic image and a transparent substrate. The apparatus for displaying a three-dimensional image according to claim 1, wherein the second light source component is composed of a white visible light source, and the white visible light source is composed of a plurality of white LEDs, a light guide plate, and a plurality of And a plurality of diffusing films and a plurality of brightness enhancing films; and by controlling the brightness of the white LEDs, the second 3D multi-view synthetic image elements can be illuminated with different brightness, or by Controlling the opening and closing of the white LEDs to display and not display the The second 3D multi-view synthetic image element. The apparatus for displaying a three-dimensional image according to claim 3, wherein the parallax barrier structure is formed by a precision process of photolithography, letterpress transfer, and gravure transfer, and the light shielding component can be The light transmissive elements are replicated on the face of the transparent substrate. The apparatus for displaying a three-dimensional image according to claim 3, wherein the parallax barrier structure is formed by coating a non-transparent film on the surface of the transparent substrate, the non-transmissive film. The color can be white, silver, or black, and then use the alignment technology and a laser engraving machine with precise positioning for the non-transparent film, and corresponding to the existence of the light-transmitting elements, to hollow out The operation of the non-transparent film at the place can complete the fabrication of the parallax barrier structure by completing the fabrication of the light-transmitting elements. The apparatus for displaying a three-dimensional image according to claim 1, wherein the first 2D image element and the parallax barrier element are fabricated by a coating, a digital printing and a laser engraving technique. The 2D image and the parallax barrier structure are disposed on one surface of the transparent substrate, that is, a non-transparent parallax barrier structure is coated on one surface of the transparent substrate, and the digital printing is performed. a technique of printing the 2D image on the parallax barrier structure, and finally, using a pair of bit technology and a laser engraving machine with precise positioning, for the non-transparent film and the 2D image, and corresponding to the The light-transmitting element is present to hollow out the work to complete the fabrication of the light-transmitting elements and the 2D image. The apparatus for displaying a three-dimensional image according to claim 5, wherein the cylindrical lenses are formed by a roll-to-roll process or a hot stamp process to complete the lens array. The production of components. The apparatus for displaying a three-dimensional image according to claim 7 , wherein the second 3D multi-view synthetic image component is produced by a lithography, a digital printing process, and is permeable to light. The color ink is printed on the 3D multi-view composite image on the surface of the transparent substrate. The apparatus for displaying a three-dimensional image according to claim 1, wherein the first 2D image element, the parallax barrier element, and the second 3D multi-view synthesis The imaging element and the like can be fabricated on both sides of the lens array component by a coating, a digital printing, a pair of positioning and a laser engraving technique; that is, for the lens array component A lens structure surface is coated with a non-transparent parallax barrier structure, and then a 2D image is printed on the parallax barrier structure by digital printing technology. Finally, a pair of bit technology and precise positioning are utilized. a laser engraving machine for the non-transparent film and the 2D image, and corresponding to the presence of the light-transmitting elements, to hollow out the work of the place to simultaneously complete the light-transmitting elements and the 2D image In addition, for the non-lens structure surface of the lens array component, the 3D multi-view composite image is printed on the through-bit technology and a digital printing process, and the light-transmissive color ink is used. The non-lens structure surface. Apparatus as defined in claim 4 of the scope of the item of three-dimensional image display, wherein, in a condition of holding the cell structure of the same width P _B, by changing the plurality of light shielding member, the plurality of the horizontal width B of the light-transmitting element And B, which can simultaneously improve the phenomenon of ghosting generated by the lens array element, and improve the brightness of the parallax barrier element, and the condition of the horizontal width is changed, as follows: And let B '> B and < ;among them, The horizontal width of the light-shielding elements and the light-transmitting elements after the B ' system is changed.