KR102130138B1 - Lenticular lens Film and 3 Dimension Device Using the Same - Google Patents

Abstract

A lenticular lens film according to an aspect of the present invention includes a substrate; A plurality of lenses arranged side by side on a substrate; The plurality of lenses include a first lens and a second lens, and the second lens includes a longer one formed in the longitudinal direction of the lens than the first lens.

Description

Lenticular lens film and 3 dimension device using the same

The present invention relates to a lenticular lens film having a lens shape and a 3D autostereoscopic 3D display device using the lenticular lens film.

With the development of technology these days, there is a need for an image display device that displays a more realistic image. Accordingly, the development of a high-resolution image display device in which the number of pixels displaying an image is increased, and a 3D image display device capable of displaying an image having a three-dimensional effect has been developed. This 3D video display device can be applied not only to TVs, but also to expand its application fields to various fields such as medical images, games, advertisements, education, and military.

There are various types of stereoscopic image display devices that embody stereoscopic images, but there is a binocular parallax method that typically shows two different images having visual differences in both eyes of a person, thereby allowing a three-dimensional effect. Using the binocular parallax method, a person can feel a three-dimensional effect similar to that of actually observing an object through a stereoscopic image display device. In other words, the stereoscopic image shows the stereoscopic sense using the binocular parallax that appears because the human eyes are about 65 mm apart. With this in mind, if you can input the same image as the actual image you can see in both eyes, the three-dimensional effect is easily expressed. For example, after shooting two cameras with the same characteristics at a distance between both eyes, the left image taken with the left camera is visible only to the left eye, and the right image taken with the right camera is expressed only to the right eye to express a three-dimensional effect.

Recently, a technique for an autostereoscopic 3D display device that does not use glasses has been actively developed. In general, the autostereoscopic 3D display device is divided into a method using a parallax barrier or a lenticular lens.

A lenticular lens type autostereoscopic image display device includes a display device displaying an image containing image information for left and right eyes and a lenticular lens film for realizing a stereoscopic image by changing an optical path of the image. At this time, the display device can be any type of display device that displays a flat image such as a cathode ray tube (CRT) or a liquid crystal display device (LCD), and for example, RGB pixels of a liquid crystal display device. Each of (RR,RL),(GR,GL),(BR ,BL) is divided into left and right eyes, and the lenticular lens film usually shows a semi-cylindrical lenticular lens arranged regularly on a plane. . As a result, in the lenticular lens type autostereoscopic 3D display device, the light emitted from the display device reaches each of the left and right eyes of the viewer by the action of the lenticular lens film, and through this, the observer recognizes the stereoscopic image due to binocular parallax. do.

The lenticular lens film used in such a lenticular lens type autostereoscopic image display device is composed of a plurality of lenses, and the process of aligning the display device and the lenticular lens film is very important. This is because if the alignment is not performed correctly, the light passing through the lenticular lens film does not reach the left and right eyes of the observer, and crosstalk is generated, and thus the stereoscopic image cannot be properly implemented.

Therefore, a very precise process is required to align the lenticular lens film to the stereoscopic image display device, and after alignment, various inspection processes are performed to check for defects. At this time, since the inspector works to check the number of lenses one by one with the naked eye, it takes a long time and the accuracy of the alignment decreases, resulting in a problem of deterioration in image quality such as crosstalk.

The present invention is to solve the above-mentioned problems, and to provide a lenticular lens film including at least one lens having a different length as its technical problem.

In addition, the present invention is to provide a 3D stereoscopic image display device having better image quality by using the lenticular lens film.

A lenticular lens film according to an embodiment of the present invention for achieving the above object is a substrate; And a plurality of first lenses and second lenses arranged side by side on the substrate, and the second lens may be formed longer than the first lens.

A 3D stereoscopic image display device according to another aspect of the present invention for achieving the above object is a display device for implementing a 2D image; And a lenticular lens film for realizing the 2D image as a 3D stereoscopic image, wherein the lenticular lens film includes a substrate; And a plurality of first lenses and second lenses arranged side by side on the substrate, and the second lens may be formed longer than the first lens.

The autostereoscopic 3D display device using the lenticular lens film according to the present invention has an effect of aligning the lenticular lens film and the display device more accurately to reduce crosstalk.

In addition, in the process of producing a lenticular lens film, there is an effect that can cut the lenticular lens film to the correct size.

1 is a view for explaining the configuration of the lenticular lens film of the present invention;
2 is a cross-sectional view schematically showing the configuration of a 3D stereoscopic image display device to which the lenticular lens film of the present invention is applied;
Figure 3 is a perspective view showing to explain the coupling relationship between the lenticular lens film and the display device of the present invention; And
4 is a perspective view for explaining the alignment process of the lenticular lens film and the display device of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a view showing a lenticular lens film according to an embodiment of the present invention.

1, the lenticular lens film 100 according to an embodiment of the present invention includes a substrate 110, a plurality of lenses formed on the substrate 110, and the plurality of lenses include a first lens ( 120) and the second lens 130.

The substrate 110 may be formed of a transparent film or glass, and the transparent film will be described as an example in the present invention.

The substrate 110 and the plurality of lenses may be integrally formed through a mold or an injection process, and may also be formed by bonding a plurality of lenses on the substrate 110 using an adhesive.

The substrate of the lenticular lens film is divided into a first area FA and a second area SA, and the second area SA is formed on the upper and/or lower part of the first area FA in the longitudinal direction of the lens. Can.

The first lens 120 is formed in the first area FA, and the second lens 130 is formed to extend to the second area SA including the first area FA. That is, the second lens 130 is formed longer than the first lens 120.

The second lens 130 may be formed at regular intervals from the first lens 120 or may be formed at n times (n is an integer) interval. Accordingly, at least one first lens 120 is formed between the plurality of second lenses 130.

Meanwhile, in the case of an autostereoscopic 3D display device using the lenticular lens film 100, the size of the lenticular lens film 100 is determined by various conditions such as panel size, viewing distance, and pixel size.

According to an embodiment of the present invention, a method of utilizing a camera capable of recognizing the second lens during the cutting process becomes possible by appropriately arranging the second lens according to the size of the lenticular lens film 100. Therefore, it is possible to perform a more accurate and faster cutting process through an automated process.

The plurality of first lenses 120 and the second lenses 130 formed on the substrate 110 may have a semi-cylindrical shape, and may be lenses having a Fresnel Lens shape or various other shapes. have.

The lenticular lens film 100 of the present invention can be applied to all stereoscopic image display devices that implement autostereoscopic 3D images using lenses. For example, a polarization control type autostereoscopic 3D display device capable of 2D-3D switching by controlling polarization in a polarization control panel or a lenticular lens type autostereoscopic image display that realizes a stereoscopic image using a display panel and a lenticular lens film Devices and the like.

In the present invention, a lenticular lens type autostereoscopic 3D display device 1000 will be described as an example.

2 is a cross-sectional view schematically showing the configuration of a 3D stereoscopic image display device to which the lenticular lens film 100 of the present invention is applied.

3 is a perspective view illustrating a coupling relationship between the lenticular lens film 100 and the display device 200 of the present invention.

Hereinafter, a lenticular lens autostereoscopic 3D display device according to an embodiment of the present invention will be described in more detail with reference to FIGS. 2 and 3.

As shown in FIG. 2, the lenticular lens autostereoscopic 3D display device 1000 of the present invention includes a display device 200 for realizing a 2D image, and a light emitting unit 300 that supplies light to the display device 200 ), including the lenticular lens film 100 on the top of the display device, wherein the light emitting unit 300 is an organic light emitting diode display (Organic Light Emitting Diode, OLED), a light emitting diode (LED) or a lamp (LAMP) or the like, and the lenticular lens film 100 may be formed between the display device 200 and the light emitting unit 300.

Here, the display device 200 may be a liquid crystal display device composed of a color filter substrate 220 and an array substrate 210 and a liquid crystal layer (LC, not shown) between two substrates, and a field emission display device. , FED), a plasma display panel (PDP), and an organic light emitting diode (OLED), an electrophoretic display (Electrophoresis, EPD).

When the display device 200 is a liquid crystal display, the color filter substrate 220 is a color filter (not shown) composed of a plurality of sub-color filters that realize red, green, and blue colors. Time) and the sub-color filter, a black matrix (not shown) that blocks light passing through the liquid crystal layer LC, and a transparent common electrode that applies a voltage to the liquid crystal layer LC ( (Not shown).

In addition, the array substrate 210 is a switching element formed in a plurality of gate lines (not shown) and data lines (not shown), which are arranged in the vertical and horizontal directions to define a plurality of pixel areas, and crossing regions of the gate lines and the data lines. It may be formed of a thin film transistor T (not shown) and a pixel electrode (not shown) formed on the pixel area P (not shown).

The color filter substrate 220 and the array substrate 210 configured as described above are joined by a sealant (not shown) formed on the outer portion of the image display area to face each other to form a liquid crystal display device. The bonding of the array substrate is performed through alignment marks (not shown) formed on the color filter substrate 210 or the array substrate 220.

The lenticular lens film 100 may include a substrate 110 and a plurality of lenses formed on the substrate, and the plurality of lenses may include a first lens 120 and a second lens 130.

The second lens 130 may be formed at regular intervals from the first lens 120 or may be formed at intervals of n times (where n is an integer).

The plurality of first lenses 120 and the second lenses 130 formed on the substrate 110 may have a semi-cylindrical shape, and may be lenses having a Fresnel Lens shape or various other shapes. have.

The substrate 110 may be formed of a transparent film or glass, and the transparent film will be described as an example in the present invention.

The substrate and the plurality of lenses may be integrally formed through a mold or an injection process, and may also be formed by bonding a plurality of lenses on the substrate 110 using an adhesive.

The substrate of the lenticular lens film is divided into a first area FA and a second area SA, and the second area SA is formed in upper and/or lower areas of the first area FA in the longitudinal direction of the lens. Can be.

Referring to FIG. 3, data pads (not shown) extending from data lines and gate lines extending from a pad area outside the image display area (A/A, Active Area) of the display device 200 Gate pads (not shown) are formed. The data pads are electrically connected to the source IC 217 (integrated circuit), and the gate pads are electrically connected to the gate IC 215.

The source IC 217 is mounted on a tape film type source TCP (218, Tape Carrier Package) and then connected to data pads through a tape automated bonding (TAB) process.

The gate IC 215 is mounted on the tape film type gate TCP 216 and then connected to the gate pads through a TAB process.

Meanwhile, as illustrated, it is preferable that a plurality of lenses of the lenticular lens film 100 are formed to correspond to the image display area A/A of the display device.

The second area SA may be formed so that the overall size of the lenticular lens film 100 is not larger than the size of the array substrate 210 of the display device 200.

The second area SA may be formed above and/or below the first area FA along the lens length direction.

4 is a view for explaining an alignment process for attaching the lenticular lens film 100 to the image display area A/A of the display panel 200.

The lenticular lens film 100 is attached to the image display area (A/A) of the display panel 200 through an alignment process. In the conventional method, an alignment mark is applied to the lenticular lens film 200. ) It is very tricky to form.

Therefore, in an embodiment of the present invention, an alignment point AP is checked through a module (not shown) including a camera, and an alignment process is performed.

An image display area (A) by recognizing the alignment point (AP) located on the vertical side of one of the plurality of lenses of the lenticular lens film 100 as a starting point and the alignment point (AP) located on the lower side as an end point. /A) Check and align the vertical side and alignment of the pixels located at both edges of the pixels and align them.

Here, the upper alignment point (AP) may be a point located at the end of the vertical side of the lens, the lower alignment point (AP) is the vertical side of the lens, and the first area (FA) of the lenticular lens film 100 ) May be a point where the interface between the second area SA intersects.

Likewise, alignment points exist on one vertical side of the plurality of lenses, and an alignment process with the vertical side of pixels in the image display area A/A may be performed.

Meanwhile, polarizing plates (not shown) are positioned at upper and lower portions of the display device 200, respectively.

At this time, the size of the polarizing plate may be formed to be the same as the size of the first area FA of the lenticular lens film 100.

In this case, when light from the light emitting unit 300 passes through the display device and passes through the lenticular lens film 100, a contrast difference occurs between the first region where the upper polarizing plate is located and the second region without the upper polarizing plate. . The contrast difference can be recognized through the camera, and it is easier to find the alignment point (AP).

Therefore, the lenticular lens type autostereoscopic 3D display device 1000 of the present invention can improve the accuracy during the alignment process of the display device 200 and the lenticular lens film 100, and the worker visually inspects the process after the process. Even in the case of this, there is an effect to easily grasp whether or not it is defective.

Those skilled in the art to which the present invention pertains will understand that the above-described present invention can be implemented in other specific forms without changing its technical spirit or essential features. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. The scope of the present invention is indicated by the following claims rather than the above detailed description, and it should be interpreted that all changes or modifications derived from the meaning and scope of the claims and equivalent concepts are included in the scope of the present invention. do.

100: lenticular lens film 200: display device
110: substrate 210: array substrate
120: first lens 220: color filter substrate
130: second lens 300: light emitting unit

Claims (7)

A display device that implements a two-dimensional image; And
A 3D stereoscopic image display device including a lenticular lens film attached to the display device to realize the 2D image as a 3D stereoscopic image,
The lenticular lens film,
A substrate including a first region and a second region; And
It includes a plurality of first and second lenses arranged side by side on the substrate,
The plurality of first lenses are formed inside the first area, and the plurality of second lenses are formed to extend to the first area and the second area, and the first area is the display device. A 3D stereoscopic image display device, characterized in that it is aligned to an image display area and attached to the display device, and the second area is aligned outside the image display area of the display device and attached to the display device. According to claim 1,
The plurality of first lenses and second lenses are three-dimensional image display device, characterized in that the shape of a Fresnel lens or semi-cylindrical. According to claim 1,
The plurality of first lenses is a three-dimensional image display device, characterized in that formed between the plurality of second lenses. delete delete delete delete

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