TWI489150B - A method and apparatus for simultaneous displaying 2D and 3D images - Google Patents

Description

Method and device for simultaneously displaying 2D and 3D images

For the 3D Advertising Lighting Box (hereinafter referred to as 3D light box), the Lenticular method is generally used to display a 3D still image of a naked eye to achieve the purpose of providing a 3D dedicated light box. For the 3D dedicated light box, the present invention provides a method and a device for 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 Lenticular 10, a multi-view 3D composite image 20, and a backlight 30. As shown in FIG. 2, the Lenticular 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 called For the printing surface 12, the multi-view combined 3D image 20 is printed on the printing surface 12 by a process of lithography. The multi-view 3D composite 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 multi-view 3D composite image 20, the illumination of the backlight 30 and the view separation of the Lenticular 10 can be used for optimal viewing distance Z ₀ (Optimum Viewing Distance, OVD). on the n best viewpoints (optimum Viewin Point, OVP) P k , the individual presenting single view image V _k.

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 deficiencies, the present invention provides a method and apparatus for simultaneously displaying 2D and 3D images, which can increase the function of 3D light box image display and greatly improve the effectiveness of advertising.

The method mainly uses a first light source, a first image surface, a second image surface, and a second light source, and simultaneously illuminates the first image surface with the first light source and the second light source. And the second image surface for simultaneously displaying a 2D image and a 3D image.

The device mainly uses a first light source, a first image surface, a transparent substrate, a second image surface, and a second light source. The first image surface has a parallax barrier structure. a 2D image and a plurality of position reference structures, the second image surface has a multi-view 3D composite image and a plurality of position reference structures, through precision processing, alignment, and digital printing technology. The first image surface and the second image surface are individually mounted on both sides of the transparent substrate. Through the operation of the above method, that is, the first light source and the second light source are separately illuminating the first image surface and the second image surface, the device can simultaneously display a 2D image and a 3D image. The purpose.

For the viewer in front of the 3D light box formed by the method and the device, the 2D image can be viewed at any position, and at the optimal viewing distance, the multi-view 3D can be viewed. A 3D image of the image. Therefore, when the viewer is standing at the best viewing distance, 2D and 3D images can be viewed simultaneously.

In summary, the 3D advertising light box formed by using the method and the device not only provides the function of the 3D light box, but also retains the function 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‧‧‧Multi-view 3D synthetic image

30‧‧‧ Backlight

100‧‧‧Composition of an embodiment of the invention

110‧‧‧First light source

120‧‧‧ first image surface

121‧‧‧Structure of parallax grating

122‧‧‧Vertical strip structure

123‧‧‧Slanted strip structure

122a, 123a‧‧‧ shading elements

122b, 123b‧‧‧Lighting components

126‧‧2D image

126a‧‧‧Printing area

126b‧‧‧Non-printing area

130‧‧‧Transparent substrate

131‧‧‧The first side of the transparent substrate

132‧‧‧Second side of transparent substrate

133‧‧‧Location Reference Structure

140‧‧‧second image surface

141‧‧‧Multi-view 3D synthetic image

150‧‧‧second light source

N‧‧‧ total number of views

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

K‧‧ Sight number

Z ₀ ‧‧‧Best viewing distance

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

L‧‧‧Left eye

R‧‧‧Right eye

X, Y, Z‧‧‧ coordinate system

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 to 5 are schematic views showing the constitution of an embodiment of the present invention.

Figure 6 is a schematic diagram showing the structure of a parallax barrier structure.

Figure 7 is a schematic diagram showing the structure of a coefficient-printed parallax barrier.

Figures 8-9 show a schematic diagram of the printing of 2D images by coefficient bits.

FIG. 10 is a schematic diagram showing the printing of multi-view 3D synthetic images by coefficient bits.

Figure 11 is a schematic view showing the structure of a target target structure.

4 to 5 are schematic views showing the constitution of the embodiment of the present invention. The present invention provides a method and apparatus 100 for simultaneously displaying 2D and 3D images, mainly using a first light source 110, a first image surface 120, a transparent substrate 130, a second image surface 140, and a second light source 150. The first image surface 120 and the second image surface 140 are configured to simultaneously illuminate the first image surface 120 with the first light source 110 and the second image 140 with the second light source 150 to simultaneously display a 2D and The purpose of a 3D image. That is, the first transmission-illumination light source 110, the viewer may be in the Z> 0 region, the 2D image 120 viewed provided by the first face image; and a distance Z = ₀ on the Z to the optimum viewing can be The 3D image provided by the second image surface 140 is viewed.

As shown in FIG. 5, the transparent substrate 130 is composed of a transparent flat plate member, and the element may be made of a material having high transparency such as glass or acrylic (PMMA), and has a uniform thickness and The first flat surface 131 and the second surface 132 of the high flatness, the first image surface 120 and the second image surface 140 are individually mounted on the transparent substrate The first surface 131 and the second surface 132 of the material 130 are on the first surface 131.

The first light source 110 can be composed of a natural light source (such as sunlight, not shown) and an artificial light source (such as an advertising kanban lighting fixture, not shown) for projecting a visible light onto the first image surface 120. .

As shown in FIG. 5, the first image surface 120 has a structure 121 of a parallax barrier and a 2D image 126.

As shown in FIG. 6, the structure 121 of the parallax barrier can be composed of a vertical strip structure 122 and an inclined strip structure 123. The structures 122 and 123 are mainly composed of a plurality of shading elements 122a and 123a. A plurality of light transmitting elements 122b and 123b are formed. For the optical theory and design of the parallax barrier described above, please refer to the Patent Application No. 98128986 and 101135830 of the Republic of China.

Hereinafter, the vertical strip structure 122 is borrowed to illustrate the method of the actual device of the first image surface 120.

As shown in FIG. 7, the plurality of shading elements 122a can be first printed on the transparent substrate 130 by a one-bit technique and a digital printing technique, and by using a white ink. On the surface 131, the white ink may be composed of a material that is opaque. Digital Printing refers to the use of laser or inkjet printers to print digital images onto flat paper, photographic paper, glass, acrylic, metal and other materials. For definitions and techniques, please refer to the following Wikipedia website: http://en.wikipedia.org/wiki/Digital_printing#Digital_laser_exposure_onto_traditional_photographic_paper.

Next, as shown in FIGS. 8-9, the same alignment technique and digital printing technology are used, and the 2D image 126 (shown in FIG. 8) is printed on the plural by using a color ink. Above the shading elements 122a (as shown in Figure 9). In other words, the method of the 2D image 126 device prints the 2D image 126 corresponding to the position where the plurality of light blocking elements 122a exist; and the position where the plurality of light transmitting elements 122b exist. , then do not print the image.

Therefore, the 2D image 126 printed on the parallax barrier structure 121 is composed of a plurality of printing regions 126a and a plurality of non-printing regions 126b, wherein the complex The plurality of printing areas 126a correspond to the plurality of shading elements 122a and have the same structure, size, position, and number as the plurality of shading elements 122a. In addition, the plurality of non-printing regions 126b correspond to the plurality of light transmissive elements 122b and have the same structure, size, position, and number as the light transmissive elements 122b.

In addition, the 2D image 126 and the plurality of light-shielding elements 122a and the plurality of light-transmissive elements 122b can be firstly processed by a general printing technique, a digital printing technique, and an opaque color ink. After the image 126 is printed on the first surface 131 of the transparent substrate 130, the alignment technique and a precision positioning laser engraving tool (not shown) are used for the 2D image 126, and corresponds to the plural The same effect of the above-mentioned digital printing technology can be achieved by the operation of the light-transmitting element to hollow out the 2D image of the portion to complete the fabrication of the plurality of light-transmitting elements 122b.

In addition, the first light source 110 illuminates the 2D image 126 composed of the plurality of printing areas 126a, and the first light source 110 optically reflects and scatters the 2D image 126 to display the 2D image.

Hereinafter, a method of actually operating the second image plane 140 will be described.

As shown in FIG. 10, on the second image surface 140, the device has a multi-view 3D composite image 141, which can be processed by a pair of techniques and digital printing, and by using a semi-transparent color ink. The multi-view 3D composite image 141 is printed on the second surface 132 of the transparent substrate 130. The term "translucent color ink" refers to a material composed of the color ink, which can be penetrated by part of the incident light.

The technique of the above-mentioned alignment, as shown in FIG. 11 , means that the device has a plurality of position reference structures 133 at the same position on the first image surface 120 and the second image surface 140 on the two surfaces. The single position reference structure 133 is composed of a symmetrical geometrical alignment target, and the symmetrical geometric structure may be formed by a shape such as a circle, a square, or a cross. Positioning the geometric center of the alignment target, that is, the reference position of the digital printing. Hereinafter, the production of the alignment target will be described by a circular diagram.

The circular alignment target is produced by a specific manufacturing method and the device is mounted on the transparent substrate 130 in a pre-processed manner. One side 132 is above the second side 132. For example, the method for producing the alignment target is to apply a black pigment to the four corners of the transparent substrate 130 to form a black region, and then use a precision positioning CNC processing tool or precision. Positioning laser engraving machine, in the black area, to hollow out the black pigment to complete the production of a circular alignment target.

The relative center position and distance between the circular alignment targets becomes a reference value for providing print alignment. Therefore, the structure 121 of the parallax barrier, the 2D image 126, and the printing of the multi-view 3D composite image 141 are aligned with each other, that is, by a conventional optical alignment method, that is, An optical microscopy imaging device (not shown) is used to identify the plurality of center positions of the plurality of alignment targets, and based on the position, the printing operation is performed.

As shown in FIG. 5, the second light source 150 is composed of a white visible light source, and the white visible light source can adopt a backlight technology of a conventional liquid crystal panel, that is, a plurality of white LEDs, a light guide plate, and a plurality of A light source (not shown) formed by elements such as a diffusion sheet and a plurality of brightness enhancement films can project a white visible light onto the second image surface 140 to illuminate the multi-view 3D composite image 141. After the optical effect of the white visible light source 150 on the multi-view 3D composite image 141, the optical separation of the multi-view 3D composite image 141, and then the visual separation of the parallax barrier structure 121, the optimal viewing distance can be obtained. At the best viewpoint, a 3D image is displayed.

In summary, the present invention provides a method for simultaneously displaying 2D and 3D images. The main physical feature is to utilize a first visible light source, a first image surface having a 2D image and a parallax barrier structure, and a multi-view. The second image surface of the 3D composite image and the second white light source are simultaneously illuminated by the first light source and the second light source to simultaneously display the first image surface and the second image surface to simultaneously display one 2D and a 3D image. The first visible light source illuminates the 2D image, and the optical effect of the first light source on the reflection and scattering of the 2D image is displayed to display the 2D image. In addition, the second white light source illuminates the multi-view 3D composite image, and the optical effect of the second light source on the multi-view 3D synthetic image is transmitted and scattered, and then the vision of the parallax barrier structure is adopted. After the separation, a 3D image is displayed.

The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the equivalent of the scope of the patent application of the present invention. Changes and modifications are still within the scope of the invention. For example, in the embodiment of the present invention, the first light source and the second light source may separately and alternately illuminate the first image surface and the second image surface at different times to achieve the effect of alternately displaying the 2D image and the 3D image. In addition, the number of the transparent substrates may be two, for individually arranging the first image surface and the second image surface. In addition, the structure of the parallax barrier on the first image surface and the printing of the 2D image can be transmitted through the digital printing technology and the opaque color ink, and the printing process can be performed at one time to achieve the same printing effect. 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

120‧‧‧ first image surface

130‧‧‧Transparent substrate

140‧‧‧second image surface

150‧‧‧second light source

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 (20)

A method for simultaneously displaying 2D and 3D images, mainly using a first light source, a first image surface having a 2D image and a parallax barrier structure, a second image surface having a multi-view 3D composite image, and a first The two light sources respectively illuminate the first image surface and the second image surface with the first light source and the second light source to simultaneously display a 2D image and a 3D image; wherein the first image surface, The image is formed by a parallax barrier structure and a 2D image, the 2D image receiving the first light source, and the optical light of the reflection and scattering of the 2D image by the first light source is used to display the 2D image; The second image surface is composed of a multi-view 3D composite image, and the multi-view 3D composite image receives the second light source, and the second light source transmits and scatters the multi-view 3D composite image. After the optical action, the 3D image is displayed after the visual separation of the parallax barrier structure. The method of claim 2, wherein the first light source is formed by a visible light source for projecting the visible light source onto the first image surface. The method of displaying 2D and 3D images at the same time as described in claim 1 , wherein the second light source is formed by a white visible light source for projecting the white visible light to the second image surface. A device capable of simultaneously displaying 2D and 3D images, mainly composed of the following components: a transparent substrate consisting of a transparent plate member having a uniform thickness and a high flatness of the first side and a first a first image surface is disposed on the first surface of the transparent substrate, the first image surface is composed of a parallax barrier structure, a 2D image and a plurality of position reference structures; The light source is composed of a natural light source and an artificial light source for projecting a visible light onto the first image surface; and a second image surface is disposed on the second surface of the transparent substrate, the second image The surface is composed of a multi-view 3D composite image and a plurality of position reference structures; and a second light source is formed by a white visible light source for projecting the white visible light onto the second image surface. A device capable of simultaneously displaying 2D and 3D images as described in claim 4, wherein the natural light source refers to a sunlight. The apparatus for simultaneously displaying 2D and 3D images as described in claim 4, wherein the artificial light source is constituted by an advertising kanban lighting fixture. The apparatus for simultaneously displaying 2D and 3D images according to the fourth aspect of the patent application, wherein the parallax barrier structure is composed of a vertical strip structure and an inclined strip structure, wherein the vertical strip structure And the inclined strip structure is composed of a plurality of light shielding elements and a plurality of light transmitting elements. The apparatus for simultaneously displaying 2D and 3D images according to claim 7 of the patent application, wherein the device method of the plurality of shading elements utilizes a one-bit technology and a digital printing technique to complete the plurality of shading elements Manufacture, wherein the alignment technique provides a plurality of center positions of the plurality of position reference structures, and the digital printing technique prints the plurality of shading elements according to the center positions and using a white ink Prepared on the first side of the transparent substrate. The apparatus for simultaneously displaying 2D and 3D images as described in claim 8 of the patent application, wherein the white ink is composed of an opaque material. The apparatus for simultaneously displaying 2D and 3D images according to the fourth aspect of the patent application, wherein the 2D image corresponds to the structure of the parallax barrier, and is composed of a plurality of printing areas and a plurality of non-printing areas. Wherein, the printing areas correspond to a plurality of shading elements, and have the same structure, size, position, and number as the plurality of shading elements; in addition, the non-printing areas correspond to a plurality of light transmissive elements, And has the same structure, size, position, and number as a plurality of light transmissive elements. The device for displaying 2D and 3D images at the same time as described in claim 10, wherein the device method for 2D images in the printing areas utilizes a pair of bit technology and a digital printing technology to complete the 2D image in the printing area Manufacture, wherein the alignment technique provides a plurality of center positions of a plurality of position reference structures, and the digital printing technique uses a color ink to image 2D images in the printing areas according to the center positions. It is printed on the corresponding shading elements; in addition, for the 2D images in the non-printing areas, no image printing is performed. The apparatus for simultaneously displaying 2D and 3D images according to item 4 of the patent application scope, wherein the multi-view 3D synthetic image device method utilizes a one-bit technology and a digital printing technology to complete the multi-view 3D synthetic image production, wherein the alignment technology provides a plurality of central positions of the plurality of position reference structures, and the digital printing technology uses half of the transparent color ink according to the center positions, A visor 3D composite image is printed on the second side of the transparent substrate. The device for displaying 2D and 3D images at the same time as described in claim 4, wherein the plurality of position reference structures are disposed at the same position on the first image surface and the second image surface, A single position reference structure is composed of a geo-symmetric shape of the alignment target, and a plurality of alignment targets can be mounted on the transparent substrate through a pair of target targets. One side is above the second side. The device for displaying 2D and 3D images at the same time as described in claim 13 wherein the geometrically symmetrical shape of the alignment target is formed by a circular shape, a square shape or a cross shape. The device for simultaneously displaying 2D and 3D images according to claim 13 of the patent application, wherein the method for manufacturing the alignment target is at a corner of the transparent substrate, first coating a black pigment to form A black area, using a precision positioning CNC machining tool, or a precision positioning laser engraving machine, in the black area, to hollow out the black pigment to complete the production of the alignment target. The device for displaying 2D and 3D images at the same time as described in claim 4, wherein the white visible light source is composed of a plurality of white LEDs, a light guide plate, a plurality of diffusion sheets, and a plurality of brightness enhancement films. The light source that is constructed to be produced. The device for displaying 2D and 3D images at the same time as described in claim 4, wherein the material of the transparent plate member is composed of a glass and an acryl. The device for displaying 2D and 3D images at the same time as described in claim 4, wherein the first light source and the second light source separately illuminate the first image surface and the second portion simultaneously Image side. The apparatus for simultaneously displaying 2D and 3D images according to claim 4, wherein the first light source and the second light source separately and alternately illuminate the first image surface in different time manners The second image side. The apparatus for simultaneously displaying 2D and 3D images according to the fourth aspect of the patent application, wherein the 2D image and the parallax barrier structure are manufactured by using general printing technology, digital printing technology, and opaque color. Printing the ink, first printing the 2D image on the first side of the transparent substrate, and then using a pair of bit technology and a precision positioning laser engraving machine for the 2D image, and corresponding to the A plurality of light transmissive elements are present on one side to hollow out the 2D image of the portion to form the light transmissive elements.