WO2011126350A2

WO2011126350A2 - Autostereoscopic large-sized 3d display technology

Info

Publication number: WO2011126350A2
Application number: PCT/KR2011/002521
Authority: WO
Inventors: 차형경
Original assignee: Cha Hyung Kyung
Priority date: 2010-04-09
Filing date: 2011-04-11
Publication date: 2011-10-13
Also published as: KR20110113457A; CN102771132A; CN102771132B; WO2011126350A3

Abstract

The present invention relates to a 3D display device comprising: a display module on which a left-sided image and a right-sided image are displayed in a form of being spatially arranged in turn; and an image dividing module which is arranged between the display module and a viewer, and enables the left-sided image displayed by the display module to be viewed through a left eye of the viewer and enables the right-sided image displayed by the display module to be viewed through a right eye of the viewer, by a particular pattern determined according to a control signal among a plurality of patterns, wherein the control signal is a signal inputted by the viewer in such a degree that each of the left-sided image or the right-sided image displayed by the display module is divisively viewed through the left eye or the right eye of the viewer.

Description

Bare-type large 3D display technology

The following description relates to a stereoscopic image (3D) screening technology, and more specifically, to a technology for performing 3D display optimized according to a viewer's position in a display device of a predetermined size or more.

In general, a three-dimensional image representing a three-dimensional image is made by the principle of stereo vision through two eyes.

The stereoscopic image display apparatus is largely classified into a stereoscopic stereoscopic image display apparatus and a non-eyeglass type (autostereoscopic) stereoscopic image display apparatus according to whether to wear glasses separately.

Glasses stereoscopic display technology displays the left image and the right image so as to have different polarization directions, and the viewer wears glasses designed to transmit light in different flat directions in left and right, so that different images are irradiated in the left and right of the viewer. Use principles that make it possible. Such stereoscopic image display technology should bear the inconvenience that the viewer should wear special glasses, but the non-glasses stereoscopic image display device can feel the stereoscopic image simply by looking at the screen without wearing the above-described glasses. Therefore, since the shortcomings of the spectacle type stereoscopic display device can be solved, many researches on this are being conducted.

The non-stereoscopic 3D display device is classified into a device based on a lenticular type and a device based on a parallax-barrier type.

An operation of the stereoscopic image display device using the parallax-barrier method will be described with reference to FIGS. 1 and 2.

In the parallax-barrier-type stereoscopic image display device, the left image L and the right image R facing the vertical direction (YY 'direction in FIG. 2) respectively correspond to the horizontal direction (in FIG. The display module 10 alternately arranged in the XX 'direction, and a bar-shaped barrier film in a vertical direction called a barrier 20 at the front end thereof. The stereoscopic image display device arranges the display module 10 and the barrier 20 so that light corresponding to the left image L is incident only to the left eye, and light corresponding to the right image R is incident only to the right eye. In this way, the two left and right images (L, R) divided by the two observations are separately observed to give a 3D feeling.

In the case of the lenticular method, the parallax-barrier method replaces the configuration of the barrier 20 with a lenticular lens array so that the left image and the right image are separated and disposed in the left and right of the viewer in a similar principle.

In the above-described three-dimensional 3D display method, an important factor of the stereoscopic sense may be a parallax of binocular disparity, that is, binocular disparity which appears because two eyes of a human are about 65 mm apart. Therefore, the left and right eyes see different two-dimensional images, and when these two images are transmitted to the brain through the retina, the brain fuses with each other to reproduce the depth and reality of the original three-dimensional image. This is commonly referred to as stereography.

Currently, the naked eye type 3D display technique as described above is applied only to a small product such as a mobile device, and the aforementioned stereoscopic image display method is still used in a display using a large screen such as a theater. This is because, in the case of a display on a large screen, the position of the viewer may vary, and the visual difference according to the viewing position of the viewer is too large to use the distance between the left and right eyes of the viewer.

In order to solve the problems as described above, the following description proposes a 3D display technology that enables viewers to watch optimized 3D images without wearing glasses at various locations.

In one aspect of the present invention for solving the above problems, a display module that is displayed in a form in which the first direction image and the second direction image are spatially arranged alternately, and disposed between the display module and the viewer, A method of displaying a 3D image using a display device comprising an image classification module which allows a first direction image and a second direction image to be irradiated separately from a viewer's left and right eyes, the method comprising: adjusting the image classification module; And displaying a 3D image by using the adjusted image classification module, wherein the image classification module adjusting step is performed when the viewer separates only the left eye or the right eye when the image classification module sequentially applies a plurality of patterns. Receives a control signal specifying a moment at which the degree of division of the first direction image or the second direction image, which is displayed by the display module, is greatest, and displays a specific pattern according to the control signal among the plurality of patterns. The first direction image displayed by the display module is displayed on the left eye of the viewer, and the second direction image displayed by the display module is displayed on the right eye of the viewer. Suggest a method.

The adjusting of the image classification module may include: displaying, by the display module, a first color image as the first direction image and a second color image having a complementary color relationship with the first color as the second direction image; When the image classification module applies a plurality of patterns sequentially, the moment when the first color image displayed by the display module is most selected or the second color image displayed by the display module is displayed when the viewer has only left or right eye. A control signal specifying this clearest moment can be received and performed.

On the other hand, another aspect of the present invention for solving the above problems is a display module for displaying the left image and the right image in a form alternately arranged; And a left image displayed by the display module in the left eye of the viewer through a specific pattern determined according to a control signal among a plurality of patterns, and a right image displayed by the display module in the right eye of the viewer. And an image classification module for displaying an image, wherein the control signal is a signal input by the viewer according to the degree of distinguishing the left image or the right image displayed by the display module, respectively, from the left eye or the right eye of the viewer. We propose a display device.

In this case, when the image classification module sequentially applies the plurality of patterns, the control signal has the largest degree of separation of the left image or the right image displayed by the display module in a state where only the left eye or the right eye is lifted. It may be a signal specifying the moment.

The control signal may be configured such that the display module displays a first color image as a left image, a second color image having a complementary color relationship with the first color as a right image, and the image separation module displays the plurality of patterns. When applied sequentially, the first color image displayed by the display module may be the clearest moment or the second color image displayed by the display module may be the signal specifying the clearest moment when the viewer has only the left or right eye. have.

The plurality of patterns may be a predetermined pattern such that the left image and the right image displayed by the display module at the plurality of viewing positions of the viewer are irradiated separately from the left eye and the right eye of the viewer.

In addition, the plurality of patterns may include a predetermined pattern such that the left image and the right image displayed by the display module are divided and irradiated to the left and right eyes of each of the plurality of viewers.

The image classification module may be any one of a parallax barrier module and a lenticular lens array module.

In addition, the 3D display device may be a 3DTV device.

When using the embodiments as described above, based on the quality of the 3D display actually seen from the viewer's point of view, it is possible to perform the 3D display optimized for each of the various positions of the viewer.

In addition, more than a predetermined number of patterns among the patterns of the parallax-barrier module or the lenticular lens array module may be set to enable 3D display optimized for viewers of a plurality of viewing positions at the same time. The naked eye 3D display can be performed.

1 is a cross-sectional view of a stereoscopic image display apparatus using a parallax-barrier.

2 is a perspective view of a stereoscopic image display apparatus using a parallax barrier.

3 to 5 are diagrams for explaining a naked eye 3D display method according to an embodiment of the present invention.

FIG. 6 is a diagram for explaining a pattern control method of a parallax-barrier according to an embodiment of the present invention. FIG.

7 to 10 are diagrams for describing a method of performing image classification module setting according to an exemplary embodiment of the present invention.

FIG. 11 is a diagram illustrating a case where a parallax barrier uses a pattern optimized for a plurality of viewing positions according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. The detailed description, which will be given below with reference to the accompanying drawings, is intended to explain exemplary embodiments of the present invention and is not intended to represent the only embodiments in which the present invention may be practiced.

The following detailed description includes specific details in order to provide a thorough understanding of the present invention. However, one of ordinary skill in the art appreciates that the present invention may be practiced without these specific details. In some instances, well-known structures and devices are omitted or shown in block diagram form, centering on the core functions of each structure and device, in order to avoid obscuring the concepts of the present invention. In addition, the same components throughout the present specification will be described using the same reference numerals as possible.

Hereinafter, each embodiment of the present invention will be described in detail using an example of using a parallax barrier as the above-described image classification module.

As shown in FIGS. 3 to 5, the 3D display apparatus according to an exemplary embodiment of the present invention may include a display module 10 and a display module 10 that are displayed in a form in which left and right images are spatially alternately arranged. The parallax barrier module 20, 20-1, and 20-2 may be disposed between viewers. The parallax barrier according to the present exemplary embodiment may have various patterns as illustrated in FIGS. 3 to 5, and the various patterns are irradiated by distinguishing the left image and the right image of the display module in the left and right of the viewer at a specific viewing position, respectively. It may be configured to. 3 to 5, it should be noted that each bar-shaped barrier among the parallax-barriers 20, 20-1, and 20-2 patterns may have different widths. Thus, a brief description will be given of a method of forming various patterns.

The parallax barrier according to an embodiment of the present invention is configured in the cell type as shown in FIG. 6 to control wirings such as x1, x2, x3 ... in the row direction, and y1, y2, y3 in the column direction. The pattern can be controlled by control wiring such as. If the control signal activates y1, y3, y5..., Heat corresponding to y1, y3, y5... May be formed as a barrier to prevent light blocking. In one embodiment of the present invention, the barrier may be formed in the horizontal direction, and in this case, the barrier may be formed through control using the row direction control wiring.

If barriers of different widths are required, the number of control wirings for activating the barriers in the column-directional wiring in the example of FIG. 6 may be adjusted. For example, barrier patterns having different thicknesses may be formed by forming barriers in a pattern such as control wirings y1, y2, y5, y6, y7, y11, y13.

In some cases, the parallax barrier illustrated in FIG. 6 may have different widths of each column / row. In addition, depending on the control method, it may be possible to form a barrier in an inclined direction rather than a horizontal direction or a vertical direction.

In addition, when the entire parallax-barrier is turned off according to an embodiment of the present invention, the image display device may operate in a general 2D mode.

As described above, an image classification module which may have various patterns, and in this example, various approaches are available for selecting which of the patterns of the parallax barrier module to display the 3D image. However, the inventors noted that the most obvious method for selecting a pattern to be used in the image classification module reflects the state of the image which is directly shown to the viewer. Hereinafter, a method of selecting a pattern of the image classification module according to the state of the image directly shown to the viewer will be described in detail.

Specifically, FIG. 7 illustrates an example in which the display module displays a blue image B as a left image L and a red image R as a right image R in an image classification module setting step in one embodiment of the present invention. It is shown. As shown in the example of FIG. 7, in addition to the method in which the left image displays "L" as blue light and the right image displays "R" as red light, the left and right image lights can be distinguished from each other using light having a complementary color relationship. If so, it may be in any form.

FIG. 8 is a diagram illustrating a form in which a left image and a right image illustrated in FIG. 7 are displayed on a display module.

While the display module displays an image for setting the image classification module as shown in FIG. 8, the image classification module sequentially applies the optimal pattern in FIGS. 3 to 5 and other viewing positions. You can repeat for a period of time.

Viewers located at a specific viewing position can select a button, such as a remote control, at a time when the image corresponding to the eye is most clearly distinguished while one eye is closed and only one eye is open while the various patterns of the image separation module are sequentially applied. Can be pressed. Specifically, as shown in FIGS. 9 and 10, in a display method of classifying images by using a distance between both eyes of a viewer such as a parallax barrier, a distinction state between a left image and a right image is optimal for one eye. In this case, it should be noted that the left and right image division states of the other eye may also be optimal. Applying this to the present embodiment, it is more preferable for the viewer to select a point in time at which the image corresponding to the eye becomes most apparent when only one eye is opened, rather than distinguishing the state of distinguishing the left and right images with both eyes open. Can be clear.

According to the embodiment described with reference to FIGS. 7 and 8, the viewer may select an optimized pattern at the viewing position of the user by pressing the remote controller at the time when the image is seen as the red color with only the right eye open. In one embodiment of the present invention, in addition to the method of directly checking through the eyes of the viewer, the left and right images photographed by the two cameras of the small device by using a small device including two camera modules corresponding to both eyes of the person. It may be set to transmit a control signal by selecting a time point at which the degree of division (eg, color separation degree) of the predetermined level or more.

When receiving the control signal of such a viewer, the 3D display apparatus according to the present embodiment stops changing the pattern of the image classification module and displays the 3D image by using the pattern of the time point at which the control signal is received from the viewer. The 3D display can be performed using the optimized pattern.

Meanwhile, in a preferred embodiment of the present invention, the patterns of the image classification module are preferably set as patterns for performing an optimal 3D display for a plurality of viewing positions. FIG. 11 illustrates a case in which the parallax barrier uses an optimized pattern for both positions of User 1 and User 2 as an example according to the present embodiment. However, the present invention is not limited thereto, and the multifocal 3D display technology may be used in various ways. This can be applied.

The above embodiments are suitable to be applied to the 3DTV field but need not be limited thereto. In addition, when applied to the 3DTV field, in order to secure a wider viewing range, the 3D image display device may have a shape in which the center portion protrudes toward the viewer. In addition, the stereoscopic image display device itself does not have a protruding shape as described above, and configures the parallax barrier module in double, the center portion forms a pattern by using a first bayer close to the viewer, and the edge portion forms a viewer. It may also be configured to form a pattern using a second bearer located far from.

Meanwhile, the stereoscopic image display method as described above may be applied to a hologram method as well as a parallax barrier method and a lenticular lens array.

The detailed description of the preferred embodiments of the invention disclosed as described above is provided to enable any person skilled in the art to make and practice the invention. While the above has been described with reference to preferred embodiments of the present invention, those skilled in the art can variously modify and change the present invention without departing from the scope of the present invention as set forth in the claims below. I can understand that. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

The invention as described above may be utilized in all fields to which the naked eye 3D display is applied.

In addition, the adjustment method according to the present invention as described above may be performed independently, or may be used in an auxiliary manner after performing a three-dimensional adjustment by face recognition or the like.

Claims

A display module configured to display a first direction image and a second direction image in a spatially alternate form, and disposed between the display module and the viewer so that the first direction image and the second direction image are arranged in the left eye of the viewer. In the method for displaying a 3D image by using a display device including an image classification module to be divided and irradiated to the right eye,

Adjusting the image classification module; And

3D image screening step using the adjusted image classification module,

The step of adjusting the image classification module,

When the image classification module sequentially applies a plurality of patterns, the moment when the viewer displays only the left or right eye, the display module displays the moment when the degree of separation of the first direction image or the second direction image is the largest. Receive a control signal,

The first direction image displayed by the display module is displayed on the left eye of the viewer by applying a specific pattern to the image classification module according to the control signal among the plurality of patterns. 3D image screening method, characterized in that performed by adjusting to view the two-way image.
The method of claim 1,

The step of adjusting the image classification module,

The display module displays a first color image as the first direction image, and a second color image having a complementary color relationship with the first color as the second direction image, and the image separation module sequentially displays a plurality of patterns. When applied, a control signal specifying a moment when the first color image displayed by the display module is most selected or the moment when a second color image displayed by the display module is clearest when the viewer has only left or right eyes. Receiving and performing, 3D image screening method.
A display module configured to display the left image and the right image in a form in which they are spatially alternately arranged; And

Disposed between the display module and the viewer, the left image displayed by the display module in the left eye of the viewer through a specific pattern determined according to a control signal among a plurality of patterns, and the right image displayed by the display module in the right eye of the viewer. Includes an image classification module to make it visible,

The control signal is a signal input by the viewer according to the degree to which the left image or the right image displayed by the display module are respectively distinguished from the left eye or the right eye of the viewer.
The method of claim 3, wherein

The control signal,

When the image classification module sequentially applies the plurality of patterns, the viewer is a signal specifying a moment where the degree of division of the left image or the right image displayed by the display module is the largest when only the left eye or the right eye is open. 3D display device.
The method of claim 4, wherein

The control signal,

When the display module displays a first color image as a left image and a second color image having a complementary color relationship with the first color as a right image, and the image classification module applies the plurality of patterns sequentially, 3. A 3D display apparatus of claim 1, wherein the first color image displayed by the display module is the sharpest moment or the second color image displayed by the display module is the clearest moment when the viewer has left or right eyes only.
The method of claim 3, wherein

The plurality of patterns are predetermined patterns such that the left image and the right image displayed by the display module at the plurality of viewing positions of the viewer are irradiated separately from the left eye and the right eye of the viewer.
The method of claim 3, wherein

The plurality of patterns includes a predetermined pattern such that the left image and the right image displayed by the display module are divided and irradiated to the left and right eyes of each of the plurality of viewers.