KR101282012B1 - 3 dimensional display device and 3 dimensional display system having thesame - Google Patents

Abstract

The present invention relates to a stereoscopic image display device and a stereoscopic image system including the same, including a display panel and a composite functional layer including an optical layer separating a right eye image and a left eye image, wherein the composite functional layer is the display panel. Provided is a stereoscopic image display device located above or inside and a stereoscopic image system including the same. The stereoscopic image display device of the present invention can reduce the thickness of the display and reduce the raw material cost.

Description

3D image display device and 3D image system including the same {3 DIMENSIONAL DISPLAY DEVICE AND 3 DIMENSIONAL DISPLAY SYSTEM HAVING THESAME}

The present invention relates to a stereoscopic image display apparatus and a stereoscopic image system including the same, and to a stereoscopic image display apparatus and a stereoscopic image system including the same, which can reduce the thickness of the display and reduce raw material costs.

Recently, various display devices including a touch screen function as well as a display device capable of securing a light weight and a clear and wide viewing angle have been used. Recently, there is a growing interest in a technology that enables 3D stereoscopic image by applying such display devices.

As a specific example of implementing such a stereoscopic image, as a new medium in the advertising field, a three-dimensional display, a three-dimensional multimedia image display terminal for home use, a video display terminal for simulators and education and training, various visual measurement image display terminals for precise measurement and diagnosis, and a medical three-dimensional image Video display terminal, video display terminal for various surveillance and control, 3D video monitor for video conferencing and advertising, 3D television for broadcasting, video display terminal for education / entertainment, parts for special environment production, video device for 3D game Etc.

Three-dimensional stereoscopic image is achieved by the principle of stereo vision through two eyes. The parallax of two eyes, that is, binocular disparity that appears because the two eyes are about 65mm apart, is different from the left and right eyes. When the image of the image is delivered, the binocular disparity is recognized as a 3D image that is fused with each other in the process of being transmitted to the brain through the retina.

Depending on whether the viewer needs to wear separate glasses, stereoscopic polarization and time-division, autostereoscopic parallax-barrier, lenticular and blinking light, etc. There is this.

While the former can enjoy stereoscopic images, many people must wear separate polarized glasses or liquid crystal shutter glasses, and the latter has an image splitter and a cylindrical lens array combined with the display, respectively. As the observation range is fixed, it is limited to a small number of people, but it does not have to wear separate glasses.

It is an object of the present invention to provide a stereoscopic image display device and a stereoscopic image system including the same, which can reduce the thickness of a display and reduce raw material costs.

In order to achieve the above object, the stereoscopic image display apparatus according to an embodiment of the present invention includes a composite functional layer including a display panel and an optical layer for separating the left eye image and the right eye image, the composite functional layer is It is located above or inside the display panel.

The optical layer may include any one selected from the group consisting of a half wave plate, a quarter wave plate, and a combination thereof.

The optical layer separating the left eye image and the right eye image includes a first phase difference region having an optical axis identical to an optical axis of light emitted from the display panel, and a second phase difference region having an optical axis that forms an angle of 45 degrees with the optical axis of the light. It may be to include a phase difference layer.

The optical layer separating the left eye image and the right eye image may include a phase difference layer including a phase difference region having an optical axis forming an angle of 45 degrees with an optical axis of light emitted from the display panel, and a region from which a part of the phase difference region is removed. have.

The optical layer separating the left eye image and the right eye image may include a phase difference layer patterned with an optical axis that forms an angle of ± 45 degrees with an optical axis of light emitted from the display panel.

The optical layer separating the left eye image and the right eye image may be a beneficiation layer having a 90 degree beneficiation.

The composite functional layer is any one selected from the group consisting of a polarizing film, a touch panel, a protective film, and a combination thereof, and the left eye image formed on one of the layers included in the multilayer structure and the multilayer plate. It may be to include an optical layer for separating the right eye image.

The composite functional layer may further include an alignment layer on one surface of the optical layer.

The composite functional layer includes a polarizing layer and a first substrate layer and a second substrate layer positioned at both sides of the polarizing layer, and the optical layer separating the left eye image and the right eye image is the first substrate layer and the second substrate. It may be formed on one surface of the outermost substrate layer selected from the group consisting of layers.

The polarizing layer may include polyvinyl alcohol (PVA), and the first substrate layer and the second substrate layer may include triacetyl cellulose (TAC).

The composite functional layer may further include an optical protective layer covering one surface of an optical layer separating the left eye image and the right eye image.

The composite functional layer may include an upper substrate layer, a first electrode forming layer positioned below the upper substrate layer, an interval layer positioned below the first electrode forming layer, a second electrode forming layer positioned below the gap layer, and A pressure sensitive touch screen including a lower substrate layer disposed below the second electrode forming layer, wherein the optical layer separating the left eye image and the right eye image is an upper portion of the upper substrate layer, the upper substrate layer, and the first electrode forming layer. In between, may be located in any one selected from the group consisting of between the second electrode forming layer and the lower substrate layer and the lower substrate layer.

The composite functional layer may include an upper substrate layer, a first adhesive layer positioned below the upper substrate layer, a sensor layer positioned below the first adhesive layer, and a second adhesive layer positioned below the sensor layer. A touch screen, wherein the optical layer separating the left eye image and the right eye image is an upper portion of the upper substrate layer, between the upper substrate layer and the first adhesive layer, between the first adhesive layer and the sensor layer, and the sensor layer. And it may be located in any one selected from the group consisting of the second adhesive layer.

The display panel may be any one selected from the group consisting of CRT, LCD, PDP, LED, and OLED.

A stereoscopic image system according to another embodiment of the present invention includes a stereoscopic image display device and one polarized glasses selected from the group consisting of linearly polarized glasses and circularly polarized glasses.

The stereoscopic image display apparatus and the stereoscopic image system including the same of the present invention can provide a three-dimensional stereoscopic image display apparatus which can reduce the thickness of the display and reduce raw material cost.

1 (a) to 1 (c) are front views illustrating an optical layer that is a part of a stereoscopic image display device according to an embodiment of the present invention.
2 (a) to 2 (d) are cross-sectional views showing a composite functional layer that is part of one embodiment of the present invention.
3 (a) and 3 (b) are cross-sectional views of an embodiment of a stereoscopic image display device including a touch panel according to another embodiment of the present invention.
4 (a) and 4 (b) are cross-sectional views of another embodiment of a stereoscopic image display device including a touch panel according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Like parts are designated with like reference numerals throughout the specification.

A stereoscopic image display device according to an embodiment of the present invention includes a display panel and a composite functional layer including an optical layer separating a right eye image and a left eye image, wherein the composite functional layer is positioned on or inside the display panel. .

The complex functional layer is meant to include a function for implementing a 3D stereoscopic image, and includes a function for simultaneously implementing a 3D stereoscopic image together with a function of a touch screen.

1 (a) to 1 (c) and 2 (a) to 2 (d), the optical layer 1 separating the left eye image and the right eye image has a first optical axis having a different optical axis. And a phase difference region and a second phase difference region 20 and 30, and the first phase difference region and the second phase difference region 20 and 30 are each independently a half wave plate (HWP), 1/4 It may include any one selected from the group consisting of a wave plate (Quarter Wave Plate, QWP) and combinations thereof.

When the first phase difference region and the second phase difference regions 20 and 30 are configured as the half-wave plate, the first phase difference region 20 may be formed on the optical axis of the light emitted from the display panel (or the optical layer 1). The second phase difference region 30 may have an optical axis that forms an angle of 45 degrees with the optical axis of the light.

Alternatively, the first phase difference region and the second phase difference regions 20 and 30 may be replaced with a patterned phase difference layer 70 in which a half wave plate having an optical axis that forms an angle of 45 degrees with an optical axis of light emitted from the display panel. It may be.

That is, the linearly polarized light incident on the first phase difference region and the second phase difference regions 20 and 30 including the half-wave plate is divided into linearly polarized light of different optical axes (90 degrees), and thus the left eye image of different polarizations. The left eye image and the right eye image are separated into a right eye image, and the left eye image and the right eye image may be input to glasses having the same polarization axis as each polarization to implement a 3D stereoscopic image.

Meanwhile, when the first phase difference region and the second phase difference regions 20 and 30 are constituted by the quarter-wave plate, the first phase difference region 20 may include an optical axis (or the optical) of light emitted from the display panel. An optical axis of light incident on the layer 1) and an optical axis of +45 degrees, and the second phase difference region 30 may have an optical axis that forms an angle of 135 degrees (−45 degrees) with the optical axis of the light.

Alternatively, the first phase difference region and the second phase difference regions 20 and 30 may be patterned phase difference layers 70 having a quarter wave plate having an optical axis that forms an angle of 45 degrees with an optical axis of light emitted from the display panel. It may be replaced.

That is, the first phase difference region and the second phase difference regions 20 and 30 including the quarter-wave plate are converted into left and right eye images by converting the incident linearly polarized light into circularly polarized light in the left and right circles. The separated left eye image and right eye image may be input to each of the left and right circularly polarized glasses to implement a 3D stereoscopic image. When the optical layer 1 separating the left eye image and the right eye image is the circularly polarized light as described above, mixing of the left and right images according to the 3D viewing angle may be avoided, thereby securing a wider viewing angle than the linearly polarized light.

The first phase difference region 20 and the second phase difference region 30 may be alternately arranged in a horizontal or vertical stripe pattern, or alternately arranged in a check pattern.

The optical layer 1 separating the right eye image and the left eye image may be a 90-degree beneficiation layer (not shown) including a twisted nematic liquid crystal. The beneficiation layer (not shown) including the twisted nematic liquid crystal may rotate the optical axis of the passed light by 90 degrees.

The composite functional layer 3 is any one selected from the group consisting of a polarizing film, a touch panel, a protective film, and a combination thereof, and is formed on a multilayer plate having a multilayer structure, and any one layer included in the multilayer plate. It may include an optical layer (1) for separating the left eye image and the right eye image.

The optical layer 1 may further include an alignment layer (not shown) for orienting a material of the optical layer under the optical layer 1.

The optical layer 1 has an alignment film (not shown) by UV alignment, such as 0 degrees and 45 degrees in the case of a half-wave plate (HWP), +45 degrees and -45 degrees in the case of a quarter-wave plate (QWP). After patterning, the resin of the retardation layer is coated on the patterned alignment layer to form a retardation layer having different alignment axes.

In addition, the optical layer 1 may be formed by aligning an alignment axis of an alignment film (not shown) in one direction and coating a resin of a phase difference layer thereon to form a phase difference layer, followed by patterning a partial region by a partial exposure method. have.

The beneficiation layer (not shown) may be formed by patterning the alignment axis of the alignment layer (not shown) in one direction and coating the resin of the beneficiation layer thereon by a partial exposure method.

The composite functional layer 3 includes a polarization layer 10 and a first substrate layer 40 and a second substrate layer 50 positioned at both sides of the polarization layer 10, and the left eye image and the right eye image. The optical layer (1) for separating the polarization layer (10), the first substrate layer 40 and the second substrate layer 50 of any one of the substrate layer selected from the group consisting of the display panel based on the It may be formed on one surface of the substrate layer located at the outermost.

When the optical layer 1 separating the left eye image and the right eye image is formed on one surface of the outermost substrate layer, the polarizing layer 10 and the optical layer 1 are integrated to form the optical layer 1. Other substrates, such as base film, may not be used, the substrate thickness may be reduced, and the bonding process may be reduced.

The polarizing layer 10 may include polyvinyl alcohol (PVA), and the first and second substrate layers 40 and 50 may use cellulose acetate films, and in particular, triacetyl cellulose ( Triacetyl Cellulose (TAC) can be used.

The composite functional layer 3 may further include an optical protective layer 60 covering one surface of the optical layer 1. The optical protective layer 60 serves to protect the optical layer 1 from being damaged. In particular, when the optical layer 1 is located at the outermost portion of the composite functional layer 3, the optical protective layer 60 is protected. It is desirable to form layer 60. The optical protective layer 60 may be used as long as the optical protective layer 60 has no optical influence on the substrate and can protect the optical layer 1 during the process or use.

3 (a) and 3 (b) are cross-sectional views of an embodiment of a stereoscopic image display device including a touch panel according to another embodiment of the present invention.

Referring to FIGS. 3A and 3B, the composite functional layer 3 includes an upper substrate layer 410 and a first electrode forming layer 420 disposed under the upper substrate layer 410. A gap layer 430 disposed below the first electrode formation layer, a second electrode formation layer 440 below the gap layer 430, and a lower portion of the second electrode formation layer 440. It may be a pressure sensitive touch screen 4 including a lower substrate layer 450.

The optical layer 1 separating the left eye image and the right eye image may be formed on any one layer of the pressure sensitive touch screen 4 having the multilayer structure, and specifically, the upper portion of the upper substrate layer 410, the In the group consisting of the upper substrate layer 410 and the first electrode forming layer 420, between the second electrode forming layer 440 and the lower substrate layer 450 and the lower substrate layer 450 It may be located in any one selected.

The pressure sensitive touch screen 4 including the optical layer 1 separating the left eye image and the right eye image may be attached to a display device such as an LCD or an LED, and may be used as a pressurized touch screen capable of implementing 3D stereoscopic images. Can provide. In addition, the optical layer 1 may be formed in the multilayer structure of the pressure-sensitive touch screen 4 to reduce the thickness of the substrate and reduce the process cost.

4A and 4B are cross-sectional views of another exemplary embodiment of a stereoscopic image display device including a touch panel according to another exemplary embodiment of the present invention.

Referring to FIGS. 4A and 4B, the composite functional layer 3 may include an upper substrate layer 510, a first adhesive layer 520 disposed under the upper substrate layer 510, and The capacitive touch screen 5 may include a sensor layer 530 positioned below the first adhesive layer 520 and a second adhesive layer 540 positioned below the sensor layer 530.

The optical layer 1 separating the left eye image and the right eye image may be formed on any one layer of the capacitive touch screen 5 having the multilayer structure. Specifically, the optical layer 1 may separate the left eye image and the right eye image. The optical layer 1 is disposed on the upper substrate layer 510, between the upper substrate layer 510 and the first adhesive layer 520, and between the first adhesive layer 520 and the sensor layer 530. And it may be located in any one selected from the group consisting of the sensor layer 530 and the second adhesive layer 540.

The capacitive touch screen 5 including the composite functional layer 3 including the optical layer 1 separating the right eye image and the left eye image may be attached to a display device such as an LCD and an LED. A capacitive touch screen 5 capable of realizing a 3D stereoscopic image may be provided. In addition, the optical layer 1 may be formed in the multilayer structure of the capacitive touch screen 5 to reduce the thickness of the substrate and reduce the process cost.

The display panel may be any one selected from the group consisting of a cathode ray tube (CRT), a liquid crystal display (LCD), a plasma display device (PDP), a light emitting diode (LED), and an organic light emitting device (OLED).

In the case of including the composite functional layer 3 including the optical layer 1 separating the right eye image and the left eye image on or inside the display panel, the thickness of the display is reduced and the raw material cost is reduced, and the three-dimensional stereoscopic image is included. It can provide an image.

A stereoscopic image system according to another embodiment of the present invention includes the stereoscopic image display device and polarized glasses.

The polarizing glasses (not shown) may be any one selected from the group consisting of linearly polarized glasses and circularly polarized glasses.

The linear polarizing glasses may include a right linear polarizer and a left linear polarizer having the same optical axis as the optical axis of the light passing through the composite functional layer in the stereoscopic image display apparatus.

The circularly polarized glasses may include a right circularly polarized portion and a left circularly polarized portion that selectively pass left circularly polarized light and right circularly polarized light through the composite functional layer.

The linearly polarized glasses or circularly polarized glasses may provide a three-dimensional stereoscopic image to the polarized glasses wearer by passing the light of the right eye image and the left eye image separated by the stereoscopic image display device of the present invention.

Although the preferred embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts of the present invention defined in the following claims are also provided. It belongs to the scope of right.

1: optical layer 3: composite functional layer
4: resistive touch screen 5: capacitive touch screen
10: polarizing layer 20: first phase difference region
30: second phase difference region 40: first substrate layer
50: second substrate layer 60 optical protective layer
70: patterned retardation layer 410: upper substrate layer
420: first electrode forming layer 430: gap layer
440: second electrode formation layer 450: lower substrate layer
510: upper substrate layer 520: first adhesive layer
530: sensor layer 540: second adhesive layer

Claims (15)

Display panel, and
Comprising a composite functional layer including an optical layer for separating the left eye image and the right eye image,
The composite functional layer is
Upper substrate layer,
A first electrode forming layer disposed below the upper substrate layer;
An interval layer disposed below the first electrode formation layer;
A second electrode forming layer positioned below the gap layer, and
A pressure sensitive touch screen including a lower substrate layer positioned below the second electrode forming layer,
The optical layer separating the left eye image and the right eye image may include an upper portion of the upper substrate layer, between the upper substrate layer and the first electrode forming layer, between the second electrode forming layer and the lower substrate layer, and the lower substrate layer. 3D image display device which is located in any one selected from the group consisting of a lower portion. Display panel, and
Comprising a composite functional layer including an optical layer for separating the left eye image and the right eye image,
The composite functional layer
Upper substrate layer,
A first adhesive layer positioned below the upper substrate layer,
A sensor layer positioned below the first adhesive layer, and
Is a capacitive touch screen including a second adhesive layer located below the sensor layer,
The optical layer separating the left eye image and the right eye image may include an upper portion of the upper substrate layer, between the upper substrate layer and the first adhesive layer, between the first adhesive layer and the sensor layer, and between the sensor layer and the second adhesive layer. The stereoscopic image display device which is located in any one selected from the group consisting of. The method according to claim 1 or 2,
And the optical layer includes any one selected from the group consisting of a half-wave plate, a quarter-wave plate, and a combination thereof. The method according to claim 1 or 2,
The optical layer separating the left eye image and the right eye image
And a phase difference layer including a first phase difference region having an optical axis identical to an optical axis of light emitted from the display panel and a second phase difference region having an optical axis that forms an angle of 45 degrees with the optical axis of the light. . The method according to claim 1 or 2,
The optical layer separating the left eye image and the right eye image
And a phase difference layer including a phase difference region having an optical axis forming an angle of 45 degrees with an optical axis of light emitted from the display panel, and a region from which a part of the phase difference region is removed. The method according to claim 1 or 2,
The optical layer separating the left eye image and the right eye image
And a retardation layer patterned with an optical axis forming an angle of ± 45 degrees with the optical axis of the light emitted from the display panel. The method according to claim 1 or 2,
And the optical layer separating the left eye image and the right eye image is a beneficiation layer having a 90 degree beneficiation. The method according to claim 1 or 2,
The composite function layer further comprises an alignment layer on one surface of the optical layer. delete delete delete delete delete The method according to claim 1 or 2,
The display panel is any one selected from the group consisting of CRT, LCD, PDP, LED and OLED. The stereoscopic image display apparatus according to claim 1 or 2, and
A stereoscopic imaging system comprising any one of polarized glasses selected from the group consisting of linearly polarized glasses and circularly polarized glasses.

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