KR101804189B1 - Design method of glassless 3D film minimized Moire pattern - Google Patents

Abstract

The method for minimizing the moiré effect of the spectacles 3D film according to the present invention is a method for designing a 3D image by attaching a lenticular lens to the surface of a liquid crystal screen (LCD) of a smartphone and a tablet PC (Lens height, Angle of RGB pattern, Pixel Per Inch (PPI)), Lens width, Lens width, Dimensional image by implementing a 3D stereoscopic image in a pattern in which moire and rainbow are minimized by designing different resolutions, pixel sizes, and design variables, and the distance between the lens and the lens = (pixel size) x (RGB pattern angle Sine value) x (design variable).

Description

{Design method of glassless 3D film minimized Moire pattern}

The present invention relates to a method of manufacturing a spectacles 3D film, and more particularly, to a method of manufacturing a spectacles 3D film by attaching a 3D film to a liquid crystal screen (LCD) of a 2D display device such as a smart phone and a tablet PC, The present invention relates to a method of minimizing a moiré effect of a spectacles 3D film, which can minimize a moire pattern and a rainbow while implementing an image.

The display technology of electronic devices has evolved into the development of three dimensional (3D) image technology by switching from the existing development direction of large screen and high image quality. A typical 3D display is realized by using polarized light so that different image signals are input to both eyes of a person. In order to illuminate different images on two eyes, a stereoscopic image display device Glasses type stereoscopic image display device.

However, since the spectacles stereoscopic image display device senses a stereoscopic image only by directly viewing the screen without wearing special glasses for realizing the 3D image, the spectacles stereoscopic image display device is required to take the inconvenience that the user wears special glasses. Since the disadvantage of the stereoscopic image display device can be solved, a lot of researches have been conducted recently.

The non-eyeglass stereoscopic image display device is mainly classified into a device using a lenticular method and a device using a parallax-barrier method. The parallax-barrier method is a method in which a barrier having a space at regular intervals in front of the display panel is mounted in a liquid crystal form, thereby limiting the visible region of both eyes to each other. While the low resolution and darkness due to the barrier, narrow viewing angle, high power consumption, and the advantage of easy film making.

On the other hand, the lenticular method is a convex type lens that causes light refraction to divide the visible region of both eyes, and has a relatively high resolution, a high transmittance, a bright screen, a wide viewing angle, While there is an advantage that it consumes less, it is difficult to make a lens, and the production cost is high and it is impossible to switch between 2D and 3D.

Open No. 2015-114813 entitled " 3D film without a lens using a lenticular lens, a manufacturing apparatus and a manufacturing method thereof, and a 3D image display apparatus using the same, " Open Patent No. 2012-62950, And a lightweight three-dimensional image display device "have been developed. However, not only the above-mentioned technologies, but also technologies related to all the non-eyeglass 3D films that have appeared so far have a problem in that a normal image is not displayed while a video signal is reproduced on a display. In other words, there is a problem that a moire pattern and a rainbow pattern are displayed when a liquid crystal display screen is grown or a pattern like a rainbow shape appears.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a liquid crystal display (LCD) of a 2D display device such as a smart phone and a tablet PC by attaching a lenticular lens, Minimizing the moiré effect of the non-eyewear 3D film, which can be manufactured by designing a lenticular lens with a minimized Moire pattern and rainbow while allowing 3D images to be realized by using 3D glasses, To provide a design method.

The method for minimizing the moiré effect of the spectacles 3D film according to the present invention is a method for designing a 3D image by attaching a lenticular lens to the surface of a liquid crystal screen (LCD) of a smartphone and a tablet PC (Lens height, Angle of RGB pattern, Pixel Per Inch (PPI)), Lens width, Lens width, Dimensional image by implementing a 3D stereoscopic image in a pattern in which moire and rainbow are minimized by designing different resolution, pixel size, and design variables, and the distance between the lens and the lens = (pixel size) x Value) x (design variable).

Preferably, the lenticular lens attached to the iPhone 4S has a distance between the lens and the lens of 122.7 mu m, a height of the lens of 1.8 mu m, an angle of the RGB pattern of 71.5 DEG, a pixel density PPI of 329.65, The resolution is 640 × 960, the pixel size is 77.05141817 μm, and the design parameter is designed to be 1.679219011.

Preferably, the lenticular lens attached to the iPhones 5, 5C, and 5S has a distance between the lens and the lens is 122.7 mu m, the height of the lens is 1.8 mu m, the angle of the RGB pattern is 71.5 DEG, Is 326, the resolution is 750 × 1334, the pixel size is 77.91411043 μm, and the design parameter is designed as 1.660626111.

Preferably, the lenticular lens attached to the iPhones 6 and 6S has a distance between the lens and the lens of 122.998 mu m, a height of the lens of 1.9 mu m, an angle of the RGB pattern of 71.5 DEG, and a pixel density PPI of 326 , The resolution is 750 × 1334, the pixel size is 77.91411043 μm, and the design parameter is designed as 1.664659254.

Preferably, the lenticular lens attached to the iPhone 6 plus and 6S plus has a distance between the lens and the lens of 100.5 mu m, a lens height of 2.1 mu m, an RGB pattern angle of 71.5 DEG, a pixel density PPI, Is 401, the resolution is 1080 x 1920, the pixel size is 63.34164589 mu m, and the design parameter is designed to be 1.673093199.

Preferably, in the lenticular lens attached to the iPAD Air, the distance between the lens and the lens is 151.07 mu m, the height of the lens is 1.78 mu m, the angle of the RGB pattern is 71.5 DEG, the pixel density PPI is 264, The resolution is 1536 × 2048, the pixel size is 96.21212121 μm, and the design parameter is designed to be 1.655738913.

Preferably, in the lenticular lens attached to the iPAD Mini 2, the distance between the lens and the lens is 124.3 占 퐉, the height of the lens is 1.7 占 퐉, the angle of the RGB pattern is 71.565 占 and the pixel density PPI is 324 , The resolution is 1536 × 2048, the pixel size is 78.3950617 μm, and the design parameter is designed to be 1.67132649.

Preferably, the lenticular lens attached to the Xiaomi Redmi Note has a distance between the lens and the lens of 152.5 mu m, a height of the lens of 1.8 mu m, an angle of the RGB pattern of 71.5 DEG, a pixel density (PPI) of 264 , The resolution is 720 × 1280, the pixel size is 96.21212 μm, and the design parameter is designed to be 1.671412.

Preferably, the lenticular lens attached to the Xiaomi Redmi 2 has a distance between the lens and the lens of 129.5 mu m, a height of the lens of 1.8 mu m, an angle of the RGB pattern of 71.5 DEG, a pixel density (PPI) of 312 , The resolution is 720 × 1280, the pixel size is 81.41026 μm, and the design parameter is designed to be 1.67739.

Preferably, the lenticular lens attached to Xiaomi Mi 3 has a distance between the lens and the lens is 91.5 탆, the height of the lens is 1.8 탆, the angle of the RGB pattern is 71.5 캜, the pixel density PPI is 441 , A resolution of 1080 × 1920, a pixel size of 57.5963719 μm, and a design parameter of 1.67521049.

The method for minimizing the moiré effect of the spectacle-free 3D film according to the present invention is a method for minimizing the moiré effect in accordance with the device type (model) of a smartphone and a tablet PC. The distance between the lens and the lens, the height of the lens, A lenticular lens is manufactured by specifying the size and design parameters of a pixel and a lenticular lens as a 3D film is attached to a liquid crystal screen (LCD) of a 2D display device such as a smart phone and a tablet PC, It is possible to manufacture a lenticular lens in a pattern in which a moire pattern and a rainbow are minimized while realizing a 3D image by using 3D images.

1A is a photograph of a color moiré generated when a 3D screen is driven by a lenticular lens pattern.
1B is a photograph of a black and white moiré seen on a 2D screen caused by a lenticular lens pattern.
2 is a perspective view of a lenticular lens.
3 is a sectional view of a lenticular lens.

The most significant technical feature of the Moire effect minimizing design method of the spectacles 3D film according to the present invention is that the distance between the lens and the lens, the height of the lens and the angle of the RGB pattern, the pixel density, the resolution, The lenticular lens is manufactured in a pattern in which the moire and the rainbow are minimized so that the 3D image can be realized without using the 3D stereoscopic glasses so that the stereoscopic feeling can be felt.

The 3D glasses without lenticular lens using the lenticular lens according to the present invention are applied only to smart phones and tablet PCs using LCD liquid crystal displays and not to smart phones and tablet PCs using OLED screens. The lenticular lens is a system that allows you to feel the stereoscopic feeling without using 3D stereoscopic glasses by using the binocular parallax that appears before and after the visible distance of 30 cm used in a smart phone or a tablet.

As shown in Figs. 2 and 3, the lenticular lens 10 includes a lenticular lens array 12 having a hemispherical shape in cross section and disposed adjacent to a plate-like substrate 11, .

The biggest technical problem when attaching a lenticular lens to realize a stereoscopic image on a LCD screen of a smartphone and a tablet PC is that a moire pattern in which a screen is repeated or a pattern of a certain pattern repeatedly appears, (see Figs. 1A and 1B).

By the way, there are many companies that make smart phones and tablets, and there are more than 100 models alone. In order to make all of these smart phones and tablets into a non-eyewear 3D, a lenticular pattern should be designed and applied to each device. However, specifications are determined for each company that manufactures devices, and the standard is defined as a pixel density (PPI) . With this pixel density (PPI), it is possible to apply to more than 100 products with a lenticular pattern of about 10 or more. However, applying about 10 lenticular patterns to a device causes problems of moiré and rainbow due to the layout of the lenticular pattern.

In order to minimize the moiré and rainbow and to prevent the moiré and the rainbow from being felt by the user, the distance d between the lens and the lens of the lenticular lens, the height h of the lens, the angle, the pixel density PPI Per Inch), resolution and pixel size were designed differently according to the device model, and design variables were applied at this time.

More specifically, the distance d between the lens and the lens is obtained by multiplying the size of the pixel, the sin value of the RGB pattern angle, and the design variables. In other words,

Distance between lens and lens = (size of pixel) x (sine value of RGB pattern angle) x (design variable)

to be.

For example, when a new model device is released by changing the resolution and the screen size on the iPhones 5, 5C, and 5S, the pixel density PPI is changed, and accordingly, the pixel size is changed. The lenticular lens is manufactured by calculating the distance (d) between the lens and the lens by multiplying the design variables applied to the iPhone 5, 5C and 5S.

< Example  1>

- Type of device: iPhone 4S (screen size 3.5 inches)

- the distance between the lens and the lens is 122.7 mu m

- The height of the lens is 1.8 탆

- The angle of the RGB pattern is 71.5 °

The pixel density (PPI) is 329.65

- Resolution is 640 × 960

The size of the pixel is 77.05141817 탆

- Design variables: 1.679219011

< Example  2>

- Type of device: iPhone 5, 5C and 5S (screen size 4.7 inches)

- the distance between the lens and the lens is 122.7 mu m

- The height of the lens is 1.8 탆

- The angle of the RGB pattern is 71.5 °

- The pixel density (PPI) is 326

- Resolution 750 × 1334

The size of the pixel is 77.91411043 탆

- Design variables: 1.660626111

< Example  3>

- Type of device: iPhone 6 and 6S (screen size 4.7 inches)

- Distance between lens and lens is 122.998㎛

- The height of the lens is 1.9㎛

- The angle of the RGB pattern is 71.5 °

- The pixel density (PPI) is 326

- Resolution 750 × 1334

The size of the pixel is 77.91411043 탆

- Design variables: 1.664659254

< Example  4>

- Type of device: iPhone 6 plus and 6S plus (screen size 5.5 inches)

- Distance between lens and lens is 100.5㎛

- The height of the lens is 2.1 탆

- The angle of the RGB pattern is 71.5 °

- The pixel density (PPI) is 401

- Resolution is 1080 × 1920

- The size of the pixel is 63.34164589㎛

- Design variables: 1.673093199

< Example  5>

- Type of device: iPAD Air (screen size 9.7 inches)

- Distance between lens and lens is 151.07㎛

- The lens height is 1.78㎛

- The angle of the RGB pattern is 71.5 °

The pixel density (PPI) is 264

- Resolution is 1536 × 2048

The size of the pixel is 96.21212121 탆

- Design variables: 1.655738913

< Example  6>

- Type of device: iPAD Mini 2 (screen size 7.9 inches)

- The distance between the lens and the lens is 124.3 탆

- The height of the lens is 1.7 탆

- The angle of the RGB pattern is 71.565 °

- The pixel density (PPI) is 324

- Resolution is 1536 × 2048

The size of the pixel is 78.3950617 탆

- Design variables: 1.67132649

< Example  7>

- Type of device: Xiaomi Redmi Note (screen size 5.5 inches)

- Distance between lens and lens is 152.5㎛

- The height of the lens is 1.8 탆

- The angle of the RGB pattern is 71.5 °

The pixel density (PPI) is 264

- Resolution is 720 × 1280

The size of the pixel is 96.21212 탆

- Design variables: 1.671412

< Example  8>

- Type of device: Xiaomi Redmi 2 (screen size 4.7 inches)

- Distance between lens and lens is 129.5㎛

- The height of the lens is 1.8 탆

- The angle of the RGB pattern is 71.5 °

The pixel density (PPI) is 312

- Resolution is 720 × 1280

The size of the pixel is 81.41026 탆

- Design variables: 1.67739

< Example  9>

- Type of equipment: Xiaomi Mi 3 (screen size 5 inches)

- The distance between the lens and the lens is 91.5 탆

- The height of the lens is 1.8 탆

- The angle of the RGB pattern is 71.5 °

- The pixel density (PPI) is 441

- Resolution is 1080 × 1920

The size of the pixel is 57.5963719 탆

- Design variables: 1.67521049

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention. Various modifications and variations will be possible without departing from the spirit of the invention. Therefore, the scope of the present invention should be construed as being covered by the scope of the appended claims, and technical scope within the scope of equivalency thereof should be construed as being included in the scope of the present invention.

10: Lenticular lens
11: substrate
12: Lenticular lens array

Claims (10)

delete A method of designing a spectacle-free 3D film that enables a 3D image to be realized by attaching a lenticular lens to a surface of a liquid crystal screen (LCD) of a smartphone and a tablet PC,
The distance between the lens and the lens of the lenticular lens, the height of the lens, the angle of the RGB pattern, the pixel density (PPI), the resolution, the size of the pixel, the design parameter So that 3D stereoscopic images are realized in a pattern in which moire and rainbow are minimized,
Distance between lens and lens = (size of pixel) x (sine value of RGB pattern angle) x (design variable)
Lt; / RTI &gt;
The distance d between the lens and the lens is 122.7 mu m, the height h of the lens is 1.8 mu m, the angle of the RGB pattern is 71.5 DEG, and the pixel density Wherein the PPI is 329.65, the resolution is 640 × 960, the pixel size is 77.05141817 μm, and the design parameter is designed to be 1.679219011.
A method of designing a spectacle-free 3D film that enables a 3D image to be realized by attaching a lenticular lens to a surface of a liquid crystal screen (LCD) of a smartphone and a tablet PC,
The distance between the lens and the lens of the lenticular lens, the height of the lens, the angle of the RGB pattern, the pixel density (PPI), the resolution, the size of the pixel, the design parameter So that 3D stereoscopic images are realized in a pattern in which moire and rainbow are minimized,
Distance between lens and lens = (size of pixel) x (sine value of RGB pattern angle) x (design variable)
Lt; / RTI &gt;
The distance between the lens and the lens is 122.7 mu m, the height of the lens is 1.8 mu m, the angle of the RGB pattern is 71.5 DEG, and the pixel density (PPI ) Is 326, the resolution is 750 × 1334, the pixel size is 77.91411043 μm, and the design parameter is designed to be 1.660626111.
A method of designing a spectacle-free 3D film that enables a 3D image to be realized by attaching a lenticular lens to a surface of a liquid crystal screen (LCD) of a smartphone and a tablet PC,
The distance between the lens and the lens of the lenticular lens, the height of the lens, the angle of the RGB pattern, the pixel density (PPI), the resolution, the size of the pixel, the design parameter So that 3D stereoscopic images are realized in a pattern in which moire and rainbow are minimized,
Distance between lens and lens = (size of pixel) x (sine value of RGB pattern angle) x (design variable)
Lt; / RTI &gt;
The distance between the lens and the lens is 122.998 mu m, the height of the lens is 1.9 mu m, the angle of the RGB pattern is 71.5 DEG, and the pixel density (PPI) is 326, the resolution is 750 × 1334, the pixel size is 77.91411043 μm, and the design parameter is designed to be 1.664659254.
A method of designing a spectacle-free 3D film that enables a 3D image to be realized by attaching a lenticular lens to a surface of a liquid crystal screen (LCD) of a smartphone and a tablet PC,
The distance between the lens and the lens of the lenticular lens, the height of the lens, the angle of the RGB pattern, the pixel density (PPI), the resolution, the size of the pixel, the design parameter So that 3D stereoscopic images are realized in a pattern in which moire and rainbow are minimized,
Distance between lens and lens = (size of pixel) x (sine value of RGB pattern angle) x (design variable)
Lt; / RTI &gt;
The distance between the lens and the lens is 100.5 mu m, the height of the lens is 2.1 mu m, the angle of the RGB pattern is 71.5 DEG, and the pixel density (PPI ) Is 401, the resolution is 1080 占 1920, the pixel size is 63.34164589 占 퐉, and the design parameter is designed to be 1.673093199.
A method of designing a spectacle-free 3D film that enables a 3D image to be realized by attaching a lenticular lens to a surface of a liquid crystal screen (LCD) of a smartphone and a tablet PC,
The distance between the lens and the lens of the lenticular lens, the height of the lens, the angle of the RGB pattern, the pixel density (PPI), the resolution, the size of the pixel, the design parameter So that 3D stereoscopic images are realized in a pattern in which moire and rainbow are minimized,
Distance between lens and lens = (size of pixel) x (sine value of RGB pattern angle) x (design variable)
Lt; / RTI &gt;
The tablet PC is iPAD Air (screen size 9.7 inches), the distance between the lens and the lens is 151.07 mu m, the height of the lens is 1.78 mu m, the angle of the RGB pattern is 71.5 degrees, and the pixel density (PPI) , The resolution is 1536 × 2048, the pixel size is 96.21212121 μm, and the design parameter is designed to be 1.655738913.
A method of designing a spectacle-free 3D film that enables a 3D image to be realized by attaching a lenticular lens to a surface of a liquid crystal screen (LCD) of a smartphone and a tablet PC,
The distance between the lens and the lens of the lenticular lens, the height of the lens, the angle of the RGB pattern, the pixel density (PPI), the resolution, the size of the pixel, the design parameter So that 3D stereoscopic images are realized in a pattern in which moire and rainbow are minimized,
Distance between lens and lens = (size of pixel) x (sine value of RGB pattern angle) x (design variable)
Lt; / RTI &gt;
The tablet PC is iPAD Mini 2 (screen size 7.9 inches), the distance between the lens and the lens is 124.3 μm, the height of the lens is 1.7 μm, the angle of the RGB pattern is 71.565 °, and the pixel density (PPI) 324, the resolution is 1536 占 2048, the pixel size is 78.3950617 占 퐉, and the design parameter is designed to be 1.67132649.
A method of designing a spectacle-free 3D film that enables a 3D image to be realized by attaching a lenticular lens to a surface of a liquid crystal screen (LCD) of a smartphone and a tablet PC,
The distance between the lens and the lens of the lenticular lens, the height of the lens, the angle of the RGB pattern, the pixel density (PPI), the resolution, the size of the pixel, the design parameter So that 3D stereoscopic images are realized in a pattern in which moire and rainbow are minimized,
Distance between lens and lens = (size of pixel) x (sine value of RGB pattern angle) x (design variable)
Lt; / RTI &gt;
The smartphone has an Xiaomi Redmi Note (screen size 5.5 inches), the distance between the lens and the lens is 152.5 mu m, the height of the lens is 1.8 mu m, the angle of the RGB pattern is 71.5 DEG, and the pixel density (PPI) , A resolution of 720 x 1280, a pixel size of 96.21212 m, and a design parameter of 1.671412.
A method of designing a spectacle-free 3D film that enables a 3D image to be realized by attaching a lenticular lens to a surface of a liquid crystal screen (LCD) of a smartphone and a tablet PC,
The distance between the lens and the lens of the lenticular lens, the height of the lens, the angle of the RGB pattern, the pixel density (PPI), the resolution, the size of the pixel, the design parameter So that 3D stereoscopic images are realized in a pattern in which moire and rainbow are minimized,
Distance between lens and lens = (size of pixel) x (sine value of RGB pattern angle) x (design variable)
Lt; / RTI &gt;
The smartphone is Xiaomi Redmi 2 (screen size 4.7 inches), the distance between the lens and the lens is 129.5 占 퐉, the height of the lens is 1.8 占 퐉, the angle of the RGB pattern is 71.5 占 and the pixel density PPI is 312 , The resolution is 720 x 1280, the pixel size is 81.41026 μm, and the design parameter is designed to be 1.67739.
A method of designing a spectacle-free 3D film that enables a 3D image to be realized by attaching a lenticular lens to a surface of a liquid crystal screen (LCD) of a smartphone and a tablet PC,
The distance between the lens and the lens of the lenticular lens, the height of the lens, the angle of the RGB pattern, the pixel density (PPI), the resolution, the size of the pixel, the design parameter So that 3D stereoscopic images are realized in a pattern in which moire and rainbow are minimized,
Distance between lens and lens = (size of pixel) x (sine value of RGB pattern angle) x (design variable)
Lt; / RTI &gt;
The distance between the lens and the lens is 91.5 mu m, the height of the lens is 1.8 mu m, the angle of the RGB pattern is 71.5 DEG, and the pixel density (PPI) is 441 , A resolution of 1080 x 1920, a pixel size of 57.5963719 m, and a design parameter of 1.67521049.

Images