KR101227085B1 - Auto stereoscopic Display Apparatus For Configurable Window 3D Display - Google Patents

Abstract

The present invention relates to a stereoscopic image display apparatus which can perform 3D display only partially in a variable region according to a control signal received from a user. To this end, the 3D image display apparatus includes a horizontal or vertical 3D image in a first region that is variably set according to a control signal input from a user among all regions, and a horizontal direction in a region other than the first region among the entire regions. Or a display module for irradiating the vertical 2D image; And a liquid crystal unit including pixels arranged in a matrix of a cell structure, a plurality of segment terminals connecting pixels of the liquid crystal unit in a horizontal direction, and a plurality of common terminals connecting pixels of the liquid crystal unit in a vertical direction. And a barrier module including a control unit for controlling pixels of the liquid crystal unit, wherein the control unit of the barrier module includes the 3D image irradiated from the first area of the display module according to the control signal to the left or right eye of the viewer. Forming a barrier in a horizontal or vertical direction only in a second region that is variably set according to the control signal to correspond to the first region of the display module among the entire regions of the barrier module, In an area other than the second area in the entire area of It is characterized by controlling not to form a barrier.

Description

Stereoscopic Display Apparatus for Variable Window 3D Display {Auto stereoscopic Display Apparatus For Configurable Window 3D Display}

The present invention relates to a stereoscopic image display apparatus, and more particularly, to a stereoscopic image display apparatus which can partially perform 3D display only in a window area that is variably set according to a control signal input from a user.

In general, a method of implementing a stereoscopic image (or a 3D image) is implemented by illuminating different images on two eyes of a human, and a stereoscopic image display device uses separate glasses for illuminating different images on two eyes. Depending on whether or not it is necessary, it is divided into a three-dimensional stereoscopic image display device and a non-stereoscopic 3D image display device.

Spectacular stereoscopic image display apparatus must bear the inconvenience of observer wearing special glasses, but non-stereoscopic stereoscopic image display apparatus can feel stereoscopic image simply by staring at the screen without wearing the above glasses. Since the shortcomings of the stereoscopic image display device can be solved, many researches on this have been conducted. The non-stereoscopic 3D display device is largely classified into a lenticular device and a parallax-barrier device.

Hereinafter, an operation of the stereoscopic image display device using the parallax-barrier method will be described with reference to FIGS. 1A and 1B.

1A is a cross-sectional view of a stereoscopic image display device using a parallax-barrier, and FIG. 1B is a perspective view of a stereoscopic image display device using a parallax-barrier.

As shown in FIGS. 1A and 1B, the 3D image display apparatus using the parallax-barrier system has a left image L and a right side facing the vertical direction (YY 'direction in FIG. 1B) corresponding to the left and right eyes. And a display module 10 in which the image R is alternately disposed in the horizontal direction (XX 'direction in FIG. 1B), and a bar-shaped barrier layer facing the vertical direction called a barrier 20 at the front end thereof. As shown in FIG. 1A, the 3D image display device displays the light corresponding to the left image L only to the left eye, and the light corresponding to the right image R only to the right eye. And a barrier 20, and the two left and right images L and R divided through the barrier 20 are separately observed to feel a three-dimensional effect.

Hereinafter, the stereoscopic image content used in the parallax barrier method will be described.

2 is a diagram illustrating a left image and a right image respectively captured by two cameras.

The two cameras or camera modules may capture a left image L as shown in FIG. 2 (1) and a right image R as shown in FIG. 2 (2). As shown in FIG. 2, the left image L and the right image R may be a still image, a moving image, or may correspond to general image contents through respective cameras.

3 is a diagram illustrating an image obtained by synthesizing a left image and a right image photographed using two cameras.

Specifically, the left image and the right image photographed by the two cameras as shown in (1) and (2) of FIG. 2 are input to the stereoscopic image generating means and are respectively divided into vertical columns in the horizontal direction. Alternately placed and synthesized. In this way, the left and right images alternately arranged in space are seen as the left image only in the left eye and the right image in the right through the display module using the parallax barrier as shown in FIGS. 1A and 1B. .

In the conventional parallax barrier type stereoscopic image display module, as shown in FIGS. 1A and 1B, only a stereoscopic image in which a left image and a right image are divided in vertical columns and arranged in a horizontal direction is synthesized. Recognition as stereoscopic images was possible. However, according to the "cell structure parallax-barrier and the stereoscopic image display apparatus using the same (patent application No. 2005-0127631) filed by the present applicant, by implementing the above-described parallax barrier in a cell manner, it is transverse direction Alternatively, in the case of synthesizing a stereoscopic image, the direction of synthesis need not be limited to any one direction, and the direction of synthesizing the stereoscopic image and the parallax barrier method used to display the stereoscopic image. The stereoscopic image may be displayed by adjusting the barrier direction of the display module.

On the other hand, in the case of the parallax barrier method, unlike the lenticular array method, the 2D display and the 3D display can be switched freely by adjusting the parallax barrier ON / OFF.

However, in the case of the parallax barrier type stereoscopic image display device as described above, switching of the 2D display or the 3D display is free in the entire area, but the user feels the stereoscopic feeling in a specific area desired in the entire display area and the information in the remaining areas. It was difficult to implement a variable window 3D display that displays a generic 2D image just for delivery.

Accordingly, the following description proposes a stereoscopic image display apparatus that can partially perform 3D display only in a variable window according to a control signal input from a user.

In one aspect of the present invention for solving the above problems, in the stereoscopic image display apparatus for the variable area 3D display, in the first window that is variably set according to a control signal input from the user of the entire area in the horizontal direction or A display module for irradiating a vertical 3D image to a horizontal or vertical 2D image in an area other than the first window of the entire area; And a liquid crystal unit including pixels arranged in a matrix of a cell structure, a plurality of segment terminals connecting pixels of the liquid crystal unit in a horizontal direction, and a plurality of common terminals connecting pixels of the liquid crystal unit in a vertical direction. And a barrier module including a control unit for controlling pixels of the liquid crystal unit, wherein the control unit of the barrier module includes the left and right eyes of the 3D image irradiated from the first window of the display module according to the control signal. Forming a barrier in a horizontal or vertical direction only in a second window that is variably set according to the control signal to correspond to the first window of the display module among the entire area of the barrier module, Zero other than the second window of the entire area of Proposes a three-dimensional image display apparatus, characterized in that the control so that the barrier is not formed.

When the control unit forms a vertical barrier in the second window, the controller may be an odd number of all segment terminals connected to pixels corresponding to the second window and common terminals connected to pixels corresponding to the second window. Alternatively, any one of even-numbered terminals is activated, and when the horizontal barrier is formed in the second window, all of the common terminals connected to the pixels corresponding to the second window and the second window are formed. One of odd-numbered or even-numbered terminals of the segment terminals connected to the corresponding pixels may be activated.

In addition, the matrix structure of the cell structure may alternately arrange the first pixel and the second pixel, which are two pixels of different standards, in the first horizontal cell column based on the horizontal direction, and in the second horizontal cell column. Alternately arranging the third pixel and the fourth pixel, which are two pixels of different standards, and repeating the array structure of the first horizontal cell column and the second horizontal cell column in the vertical direction to form a matrix structure. Can be formed.

In addition, it is preferable that the matrix structure of the cell structure does not use the fourth pixels.

Further, selective activation of any one of odd or even terminals among common terminals connected to the pixels corresponding to the second window, and odd number of segment terminals connected to the pixels corresponding to the second window or Selective activation of any of the even-numbered terminals can be selected to not use the fourth pixels.

In addition, in the first window of the display module, the left image and the right image of the 3D image may be repeatedly arranged and irradiated alternately in a specific direction, and the barrier module may be variably set according to the control signal. 2 According to the position of the window, the left image and the right image may be repeatedly disposed and irradiated starting selectively from the left image or the right image in the specific direction in the first window of the display module. In this case, the selection starting from the left image or starting from the right image may be made in software according to the control signal.

In addition, an area other than the first window of the display module may include a frame area surrounding the first window, and the frame area irradiates the viewer with an image for distinguishing the 3D image from the 2D image. It is desirable to.

In addition, the display module may include a TFT-LCD module, and the barrier module may include a TN-LCD module.

On the other hand, in another aspect of the present invention for solving the above problems, in the stereoscopic image display device for a variable area 3D display, in the first window that is variably set according to the control signal input from the user of the entire area A display module for irradiating a 3D image to a 2D image in an area other than the first window of the entire area; And a liquid crystal unit including pixels arranged in a matrix of a cell structure, a plurality of segment terminals connecting pixels of the liquid crystal unit in a horizontal direction, and a plurality of common terminals connecting pixels of the liquid crystal unit in a vertical diagonal direction. And a barrier module including a controller for controlling the pixels of the liquid crystal unit, wherein the connection in the vertical oblique direction is continuously moved in one of the left and right directions every predetermined number of rows in the vertical direction in the matrix form. Connecting the pixels of the position, wherein the controller of the barrier module is configured to selectively display the 3D image emitted from the first window of the display module according to the control signal to the left or right eye of the viewer. The first part of the display module of the entire area of the Forming a barrier in the vertical oblique direction only in a second window that is variably set according to the control signal so as to correspond to one window, and controlling the barrier not to be formed in an area other than the second window among all areas of the barrier module. A stereoscopic image display apparatus is proposed.

In this case, when the vertical window barrier is formed in the second window, the controller includes all of the segment terminals connected to the pixels corresponding to the second window and a common terminal connected to the pixels corresponding to the second window. One of the odd-numbered and even-numbered terminals may be activated.

In addition, in the first window of the display module, the left image and the right image of the 3D image are alternately arranged and irradiated alternately in a specific direction, and the second window is variably formed according to the control signal in the barrier module. The left image and the right image may be repeatedly disposed and irradiated starting selectively from the left image or the right image in the specific direction in the first window of the display module. In this case, the selection starting from the left image or starting from the right image may be made in software according to the control signal.

In addition, an area other than the first window of the display module may include a frame area surrounding the first window, and the frame area irradiates the viewer with an image for distinguishing the 3D image from the 2D image. can do.

In addition, the display module may include a TFT-LCD module, and the barrier module may include a TN-LCD module.

According to the embodiments of the present invention as described above, the 3D display can be partially performed only in the variable window area according to the control signal input from the user, thereby combining the advantages of the 3D display and the 2D display. have.

1A is a cross-sectional view of a stereoscopic image display device using a parallax-barrier, and FIG. 1B is a perspective view of a stereoscopic image display device using a parallax-barrier.
2 is a diagram illustrating a left image and a right image respectively captured by two cameras.
3 is a diagram illustrating an image obtained by synthesizing a left image and a right image photographed using two cameras.
4 is a view for explaining the concept of a variable window 3D display according to an embodiment of the present invention.
5 and 6 illustrate a concept of a cell type parallax barrier type stereoscopic image display device.
7 and 8 are diagrams for explaining a parallax barrier pattern formed according to a cell type parallax barrier method.
9 and 10 are diagrams for describing a controller configuration of a parallax-barrier and a stereoscopic image display apparatus including the same according to an embodiment of the present invention.
11 and 12 illustrate a control pattern of a parallax barrier module for enabling partial 3D display in a variable window according to an exemplary embodiment of the present invention.
FIG. 13 is a diagram for describing a relationship between an area where a 3D display is formed and an area where a parallax barrier is formed on a display module according to an embodiment of the present invention.
14 is a diagram for describing a method of controlling a 3D image display window of a display module according to an embodiment of the present invention.
FIG. 15 is a diagram for describing a concept of a unit cell parallax barrier according to an embodiment of the present invention.
FIG. 16 is a diagram for describing a concept of a unit cell parallax barrier according to another embodiment of the present invention.
17 to 19 are diagrams for explaining a movement concept of a subcell element unit parallax barrier pattern according to an embodiment of the present invention.
20 and 21 are views for explaining a concept of variably adjusting the barrier thickness according to an embodiment of the present invention. FIG. 22 is a stereoscopic image for performing a variable window 3D display according to an embodiment of the present invention. It is a figure for demonstrating the structure of a display apparatus.
FIG. 23 is a diagram for describing a concept of an image displayed by a display module and a barrier module according to an embodiment of the present invention.
24 and 25 illustrate a structure of a barrier module for performing partial 3D display in a variable window and forming a barrier pattern in an oblique direction according to an embodiment of the present invention.

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The following detailed description, together with the accompanying drawings, is intended to illustrate exemplary embodiments of the invention and is not intended to represent the only embodiments in which the invention may be practiced.

The following detailed description includes specific details in order to provide a thorough understanding of the present invention. However, those skilled in the art will appreciate 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 around the core functions of each structure and device in order to avoid obscuring the concepts of the present invention. In addition, the same components will be described with the same reference numerals throughout the present specification.

On the other hand, terms used in the following description have the meaning commonly used in the technical field of the present invention to control the added terms or terms that give additional meaning.

4 is a view for explaining the concept of a variable window 3D display according to an embodiment of the present invention.

In the 3D display, while the user watches a still image / video, the 3D display may allow a user to feel a 3D feeling and enjoy a realistic image, while a 2D display may be suitable for providing general information. For example, if a part of the screen is playing a video while searching for information about a video being played at another part, the screen is 3D only in the window corresponding to the video playing part, and the other part is a 2D display. It will be possible to meet the needs of these users.

In detail, FIG. 4 illustrates a concept in which a 3D image is displayed only in a specific window 410 of the entire display area 400 in which a user can view an image, and a 2D image is displayed in the remaining areas. In addition, the window 410 in which the 3D display is partially made may be variable according to a control signal input from the user. For example, the user may drag the 3D display window by dragging the mouse to the boundary of the 3D display window 410. It can be expanded / collapsed like the window 410-1 or the window 410-2. In addition, it is assumed that not only the sizes but also the positions of the 3D display windows 410, 410-1, and 410-2 are variable according to a user's control signal.

In addition, in an embodiment of the present invention, in order to reduce fatigue in the partial 3D display, a frame region may be additionally placed at the boundary of the 3D display window 410 to display an image for distinguishing between 2D and 3D images. have.

Hereinafter, a detailed configuration of a stereoscopic image display apparatus for implementing the variable window 3D display as described above will be described.

5 and 6 illustrate a concept of a cell type parallax barrier type stereoscopic image display device.

In the liquid crystal unit 40a of the parallax barrier according to the exemplary embodiment of the present invention, barriers of cell units are alternately arranged in the horizontal direction (X-X ') and the vertical direction (Y-Y'), respectively. Form a pattern structure. As shown in FIG. 4, when the cells forming each horizontal barrier are referred to as a first horizontal cell column, a second horizontal cell column, and a third horizontal cell column. Sequentially arranging a first cell of a * c in a column and a second cell of b * c in a column; A third cell of width * length a * d and a fourth cell of b * d are sequentially arranged in the second horizontal cell column. Here, the values of a, b, c, and d are standard values calculated according to the specifications of the display module, and are determined to accurately display the thickness and spacing of the barrier.

The third horizontal cell column is arranged in the same structure as the first horizontal cell column, and the fourth horizontal cell column is arranged in the same structure as the second horizontal cell column. That is, the barrier substrate according to the embodiment of the present invention assumes that two horizontal cell columns having different structures are alternately arranged in the vertical direction.

To form a horizontal barrier, odd-numbered cell columns are all on to form a barrier, even-numbered cell columns are all off to form a gap between barriers, or odd-numbered cell columns are all off The gaps between the cells may be formed, and even-numbered cell columns may be turned on to form a barrier.

In addition, when the above-described structure is viewed based on the vertical direction, the first cell having a width * vertical a * c and the third cell having a * d are sequentially arranged in the first vertical cell column, and the second vertical cell is arranged. It will be apparent to those skilled in the art that the second cell of b * c and the fourth cell of b * d are sequentially arranged in the column.

Therefore, in the parallax-barrier pattern according to the embodiment of the present invention, two cells of different specifications are sequentially arranged in the horizontal and vertical directions to form a cell column, as well as two of the different structures according to the above-described arrangement. Cell columns are sequentially arranged in the horizontal and vertical directions.

On the other hand, in one embodiment of the present invention, in order to simplify the formation of the horizontal / vertical barrier pattern, the cell concept of the column which is always off when the horizontal / vertical barrier pattern is formed is illustrated. This will be described with reference to FIGS. 7 and 8.

7 and 8 are diagrams for explaining a parallax barrier pattern formed according to a cell type parallax barrier method.

FIG. 7 illustrates a pattern in which a parallax barrier according to an embodiment of the present invention is formed in a vertical direction, and FIG. 8 illustrates a pattern in which a parallax barrier according to an embodiment of the present invention is formed in a horizontal direction. have. As shown in FIGS. 7 and 8, the horizontal / vertical pattern formation control can be simplified by deactivating a cell of a column that is turned off in both the horizontal / vertical pattern, that is, the fourth cell in the above description.

9 and 10 are diagrams for describing a controller configuration of a parallax-barrier and a stereoscopic image display apparatus including the same according to an embodiment of the present invention.

First, in order to form a horizontal / vertical barrier pattern as shown in FIGS. 7 and 8, segment terminals independent of all row direction pixels of the liquid crystal part of the parallax barrier are connected to each other, and to all column direction pixels of the liquid crystal part. Independent common terminals may be connected to each other, but the two segment terminals S1 and S2 and the two common terminals C1 may be simply formed to form a horizontal / vertical barrier barrier as shown in FIGS. 7 and 8. And C2) to control the liquid crystal unit of the parallax barrier module.

In detail, FIG. 10 illustrates two segment terminals S1 and S2 and a first common terminal when the control unit includes two segment terminals S1 and S2 and two common terminals C1 and C2 as shown in FIG. 9. An example of forming a vertical parallax barrier pattern by applying an activation signal to C1) is shown.

However, when the parallax barrier pattern is formed through two common terminals and two segment terminals as illustrated in FIGS. 9 and 10, the degree of freedom of the region where the parallax barrier pattern is formed may not be high. As described above with reference to FIG. 4, an embodiment proposes the following control pattern to enable partial 3D display in a variable window.

11 and 12 illustrate a control pattern of a parallax barrier module for enabling partial 3D display in a variable window according to an exemplary embodiment of the present invention.

As shown in FIG. 11, in each embodiment, independent segment terminals S1 to Sm are connected to each row formed on the liquid crystal part of the parallax barrier module, and on the liquid crystal part of the parallax barrier module. It is proposed that each common column has a form in which independent common terminals C1 to Cn are connected. Through this structure, as shown in FIG. 12, when a vertical or horizontal barrier is to be formed only for a specific window 1110 of the parallax barrier module 1100, selectively activation of pixels in the specific window 1110 is performed. A signal can be applied to form a parallax barrier.

FIG. 12 shows segment terminals of S2 to Sm-1, C3, C5, and S2-1 when the area of the parallax barrier module corresponding to the specific window 410 on which the 3D display is performed in the display module 400 is the same as the window 1110. .., Illustrates a form in which a vertical parallax barrier is formed only in a specific window 1110 by activating a common terminal of Cn-3.

FIG. 13 is a diagram for describing a relationship between an area where a 3D display is formed and an area where a parallax barrier is formed on a display module according to an embodiment of the present invention.

FIG. 13 illustrates that a 3D image in which a left image and a right image are sequentially arranged is displayed only in a specific window 410 determined according to a user's control signal in the entire area of the display module 400.

In a preferred embodiment of the present invention, the display of the entire area of the barrier module 1100 so that the 3D image irradiated from the window 410 in which the 3D image in the display module 410 is displayed is selectively visible to the left or right eye of the viewer. It is proposed that the horizontal or vertical barrier is formed only in the window 1110 corresponding to the 3D image display window 410 of the module 400, and the rest of the barrier module 1100 is controlled so that the barrier is not formed. For this purpose, the position and size information of the window specified by the user on the user monitor may include the position and size information of the 3D image display window 410 on the display module 400 and the barrier formation area in the parallax barrier module 1100. It is preferable to be converted to the position and size information of the 1110 and transmitted to the control unit of the display module 400 and the control unit of the parallax barrier module 1100, respectively. Since the pixel on the display module 400 and the pixel on the parallax barrier module 1100 may or may not have a one-to-one relationship, the window region specific information (position and size information) according to a user control signal may be It is desirable to consider the relationship.

14 is a diagram for describing a method of controlling a 3D image display window of a display module according to an embodiment of the present invention.

As described above with reference to FIG. 3, the display module 400 displaying a 3D image means displaying an image in which a left image and a right image are alternately repeated in a horizontal direction (or a vertical direction). Therefore, if the 3D image is displayed only in a specific window 410 of the display module 400, the left image and the right image are alternately displayed only alternately within the corresponding window 410, and the left image and the right image are distinguished in the remaining areas. This means that no regular 2D video is displayed.

As described above, if the 3D image must be arranged as left / right / left / right, starting from the left image in the repeated arrangement of the left / right image, the 3D display is partially displayed according to the user's control signal. The area to be implemented may be variable in only two column units, so the degree of freedom of area setting may be reduced.

Therefore, in the preferred embodiment of the present invention, the 3D image is displayed from the left image according to the position of the specific window areas 410, 410-1, and 410-2 which are variably set according to the control signal of the user in the display module 400. It is proposed to control whether to start or start from the right image selectively. By allowing the start image to be changed among the left image and the right image as described above, the degree of freedom of setting a window region partially displaying a 3D image becomes one row, and thus has a higher degree of freedom than when the region is set in units of two rows. Can be.

On the other hand, the following describes a technique for improving the degree of freedom in the barrier module according to another embodiment of the present invention.

FIG. 15 is a diagram for describing a concept of a unit cell parallax barrier according to an embodiment of the present invention.

FIG. 15A illustrates a general cell matrix type parallax barrier. In FIG. 15A, each rectangle may correspond to one cell in a general cell matrix type parallax barrier. That is, FIG. 15A illustrates the first to fourth cells in FIGS. 5 and 6, and in this case, the fourth cell may not be removed.

Meanwhile, FIG. 15B illustrates a form in which one cell is divided into a plurality of subcell elements as compared with FIG. 15A. In FIG. 15B, one cell is composed of three subcell elements in a horizontal direction. However, the number N of subcell elements constituting one cell is a parallax barrier movement. You can choose from a variety of options considering the flexibility of the system and the complexity of the control. In addition, in FIG. 15B, one cell shown in FIG. 15A is divided into a plurality of subcell elements only in the horizontal direction. However, in the vertical direction, one cell also includes a plurality of cells. Can be divided into sub-cell elements.

FIG. 16 is a diagram for describing a concept of a unit cell parallax barrier according to another embodiment of the present invention.

FIG. 16 illustrates a form in which one cell is divided into a plurality of subcell elements in a vertical direction as well as a horizontal direction. In FIG. 16B, one cell is divided into three subcell elements in a horizontal direction and two subcell elements in a vertical direction, and in this case, one cell is 6 Subcell elements may be included. However, as described above, how many subcell elements are divided into one cell may be variously selected in consideration of flexibility of parallax barrier movement and complexity of control. In addition, since the flexibility of the movement required for the parallax barrier in the horizontal display and the flexibility of the movement required for the parallax barrier in the vertical display may be different, as shown in FIG. The number Nx of subcell elements in which the cell is divided in the horizontal direction and the number Ny of subcell elements in the vertical direction may be different from each other.

If the stereoscopic image display device to which the present invention is applied is a portable device such as a mobile phone or a PDA, since the display direction can be freely changed horizontally / vertically, as shown in FIG. In addition, it may be desirable to form the subcell elements separately in the vertical direction. In addition, in the case of a monitor, a TV, etc., in which the demand for changing the display direction is not relatively horizontal / vertical, a plurality of subcell elements are placed only in the horizontal direction as shown in FIG. 15B for simplicity of control. Can also be divided into groups.

The subcell elements according to the present embodiments can be controlled on or off independently of each other or in units of a predetermined number of subcell elements, suggesting to increase the flexibility of parallax barrier pattern movement. It demonstrates concretely with reference to drawings.

17 to 19 are diagrams for explaining a movement concept of a subcell element unit parallax barrier pattern according to an embodiment of the present invention.

As in the example illustrated in FIG. 17, the parallax barrier may form a barrier in units of three subcell elements in a horizontal direction. That is, the vertical parallax barrier by selectively turning on the subcell elements of the first first to third columns, the subcell elements of the seventh to ninth columns, and the subcell elements of the thirteenth to fifteenth columns. Can be formed.

In this case, it is assumed that the viewer's position moves. In the parallax barrier type stereoscopic image display which is an autostereoscopic method, the shift of the position of the left and right eyes of the viewer can have a great influence on the quality of the stereoscopic image display. Therefore, in one embodiment of the present invention, the parallax barrier is changed according to the movement of the viewer. Suggests moving too. In addition, the preferred embodiment of the present invention is that the movement of the parallax barrier is performed in the unit of the sub-cell elements, not the cell unit, thereby forming a parallax barrier pattern precisely even for the minute movement of the viewer to display high quality stereoscopic images. Suggest.

FIG. 18 illustrates that the parallax barrier pattern of FIG. 17 moves by one subcell element in the right direction. 19 illustrates that the parallax barrier pattern of FIG. 17 moves by two subcell elements in the right direction. That is, as in this embodiment, by setting one cell to be composed of a plurality of subcell elements, the parallax barrier pattern can be moved in units of subcell elements as shown in FIGS. 18 and 19. .

17 to 19 are described when one cell is divided into a plurality of subcell elements only in the horizontal direction and the parallax barrier pattern moves in the horizontal direction, as shown in FIG. 15B. Although only a description has been made, a person skilled in the art can also know how to move the parallax barrier pattern in both the horizontal direction and the vertical direction by using the structure as shown in FIG. 16B. In addition, it can be seen that one cell is formed by dividing a plurality of subcell elements only in the vertical direction, and a method of moving the parallax barrier pattern formed in the horizontal direction only in the vertical direction is also possible.

On the other hand, the following describes an example of using the flexibility obtained by using the paracell element unit parallax barrier as in the present invention.

20 and 21 are views for explaining a concept of variably adjusting the barrier thickness according to an embodiment of the present invention.

Specifically, FIG. 20 illustrates a pattern in which the thickness of the barrier is reduced by one subcell element, and FIG. 21 illustrates a pattern in which the thickness of the barrier is increased by one subcell element. That is, according to one embodiment of the present invention, the parallax barrier module can form a plurality of barriers in units of N subcell elements, but by varying N, the parallax barrier module can be adjusted according to the position of the viewer / brightness / remaining image required. The thickness of the barrier can be adjusted.

In general, as the viewer moves away from the stereoscopic image display device and / or the required brightness increases, the barrier thickness is preferably reduced, but the present invention is not limited thereto.

By increasing the degree of freedom of barrier formation in the barrier module through the sub-cell concept as described above, the degree of freedom in forming a barrier at a position corresponding to a variable window according to a user's control signal in the display module may also be increased. have.

In the following description, an apparatus configuration for performing the above-described technique will be described.

FIG. 22 is a diagram illustrating a configuration of a stereoscopic image display apparatus for performing a variable window 3D display according to an embodiment of the present invention.

In FIG. 22, an example in which the display module 400 is implemented using the TFT LCD 1430 and the barrier module 1100 using the TN LCD 1460 is illustrated. In addition, the TFT controller 1420 is used as a control unit for controlling the TFT LCD 1430 in the display module 400, and the TN driver 1450 and the TN driver 1450 for controlling the driving of the TN LCD 1460 of the Bayer module 1100. TN controller 1440 is shown.

Meanwhile, the AP 1410 illustrates a module for receiving and processing a 3D display, a partial 3D display, and window area information for performing a partial 3D display (window 3D display) from a user. When the AP 1410 according to an embodiment of the present invention receives a request for a window 3D display from a user and receives window area information for performing the window 3D display, the display module 400 is provided to the TFT controller 1420. Window area 410 information for displaying a 3D image on the TN controller 1440 may be provided with window area 1110 information for forming a parallax barrier on the barrier module 1100, and both window areas are shown in FIG. 13. As described above with respect to the barrier module 1100 in the region in which the left image and the right image displayed in the window region 410 on which the 3D image of the display module 400 is displayed are selectively visible to the left and right eyes of the viewer. It is preferable to satisfy the relationship that the barrier formation window region 1110 is formed. In this case, as described above, the degree of freedom of the barrier forming window region 1110 of the barrier module 1100 may be increased.

Meanwhile, the AP 1410 may determine whether the 3D image starts from the left image or the right image based on the position of the 3D display area 410 in the display module 400.

In the following description, a method of using a parallax barrier pattern in a somewhat modified form according to an embodiment of the present invention will be described.

In the parallax barrier type stereoscopic image display method, moire interference may be a problem.

Moire interference is an interference shape that occurs by overlapping periodic patterns. For example, when two meshes such as mosquito nets overlap, the moire interference is a phenomenon that is much larger than the lattice spacing of the fine fabrics that form the mesh, and the variation varies. As another example, if you overlap two hair combs, you will see a new dark shadow with a larger gap than the comb. The phenomenon in which periodic patterns overlap to form a larger pattern than the original period is called moire interference, and the pattern generated at this time is called moire fringe.

Accordingly, in an embodiment of the present invention to be described below, in performing the variable window 3D display as described above, a diagonal parallax barrier pattern capable of preventing the above-mentioned moire interference in the window area for performing the 3D display is provided. It is proposed to use, and to propose a stereoscopic image display device using the same.

FIG. 23 is a diagram for describing a concept of an image displayed by a display module and a barrier module according to an embodiment of the present invention.

In the present embodiment, the display module may correspond to reference numeral 10 of FIG. 1B, and the barrier module may correspond to reference numeral 20 of FIG. 1B. However, the image displayed by the display module and the barrier module according to the present embodiment has the following characteristics.

The display module according to the present exemplary embodiment may have a form in which first type pixels and second type pixels capable of displaying the first direction image and the second direction image are alternately arranged in the horizontal direction. Here, the first type pixel may represent a left image display pixel and the second type pixel may represent a right image display pixel. In this case, it is assumed that the first type pixel and the second type pixel include three subpixels that respectively display red (R), green (G), and blue (B) light.

In addition, the barrier module according to the present embodiment is disposed to be spaced apart from the display module by a predetermined distance such that the first type pixel and the second type pixel are selectively visible in units of pixels in the horizontal direction in the left and right eyes of the viewer. It is characterized by controlling the driving of the barrier in the diagonal pattern arranged.

Here, as illustrated in FIG. 23, the diagonal pattern refers to a subpixel unit for every predetermined number of rows in the vertical direction when the first type pixel and the second type pixel that are sequentially arranged in a matrix form. This refers to a pattern disposed at a position continuously moved in either the left or right direction.

FIG. 23 illustrates a case in which only a first type pixel among the first type pixels R, G, and B and the second type pixels R, G, and B is set to be viewed by a viewer. That is, it may be seen that the R, G, and B images corresponding to the second type pixel are displayed on the black portion in FIG. 23. As shown in FIG. 23, it is proposed that the barrier according to the present embodiment has a diagonal pattern moved in a subcell element unit or a subpixel unit in either of the left or right directions for each predetermined number of rows. It shows a pattern that is continuously moved in the left direction by one subpixel when viewed from the display module stage every predetermined row. By using such a diagonal pattern, it is possible to effectively reduce the effect of the above-described moire interference problem in the overlapping linear parallax barrier method. That is, the linear pattern of the display module and the barrier arrangement pattern may be prevented from forming a repeated pattern in which moire interference is a problem.

Meanwhile, in the present embodiment, as shown in FIG. 23, it is proposed that the barrier is set so that the viewer's left eye and right eye are divided into pixel units rather than subpixel units in a specific row. This is because if the barrier is set to be viewed separately in subpixel units displaying any one of the R, G, and B light of each of the first type pixel and the second type pixel in the viewer's left and right eyes in a particular row, This is because the rainbow phenomenon may occur as is moved. The rainbow phenomenon is briefly described as follows.

As described above, the R, G, and B subpixels of the first type pixel and the R, G, and B subpixels of the second type pixel are sequentially arranged in a specific row. If the barrier shows the R of the first type pixel and the R of the second type pixel in the left and right of the viewer in a specific row, the neighboring colored light may be in the left and right of the viewer even if the viewer moves a little. For example, when the viewer moves to the right, B may be introduced. In this way, when the viewer moves, unwanted color light is introduced, such that the image such as a heavy weight can be referred to as the above-described rainbow phenomenon.

However, as in the present embodiment, the barriers are set to be divided into pixels on the left and right sides of the viewer in a specific row, and when the barrier has a diagonal pattern, only a specific color light is introduced even when the viewer moves to generate a rainbow phenomenon. Can be prevented. For example, as shown in the above example, when the viewer moves to the right, R in a specific row, G in another specific row, and B in another specific row may be introduced. Since a certain amount of R, G, and B of the first type pixel or the second type pixel can be viewed, the above-described rainbow phenomenon can be effectively prevented.

In one embodiment of the present invention, as described above with reference to FIG. 13, the 3D image is displayed only in the specific window area 410 of the display module 400, and the specific window area 1110 corresponding to the barrier module 1100 is displayed. When only the parallax barrier pattern is formed, it is proposed that the specific window area 410 of the display module 400 and the specific window area 1110 of the barrier module 1100 are formed as shown in FIG. do. The configuration of the barrier module 1100 for this purpose will be described below with reference to FIGS. 24 and 25.

24 and 25 illustrate a structure of a barrier module for performing partial 3D display in a variable window and forming a barrier pattern in an oblique direction according to an embodiment of the present invention.

Compared to FIG. 11, the liquid crystal unit of the barrier module according to the present exemplary embodiment has a form in which cells continuously move in a left direction or a right direction every predetermined number of rows. FIG. 24 illustrates a pattern in which cells are continuously moved in a sub-pixel unit every left row in the left direction.

The control unit of the barrier module according to the present embodiment is the same as that in FIG. 11 in that a plurality of segment terminals S1 to Sm are independently connected to a plurality of rows. However, the controller of the barrier module according to the present exemplary embodiment may be distinguished from FIG. 11 in that a plurality of common terminals C1 to Cn are connected to cells in a diagonal pattern with respect to a plurality of rows. In detail, in FIG. 24, the plurality of common terminals are connected to cells moving by one sub pixel in the left direction every two rows.

FIG. 25 illustrates a case where a parallax barrier is formed only in a specific window 1110 ′ of the barrier module by using the barrier module having the above structure. In FIG. 25, when the parallax barrier is formed only in a specific window 1110 ′, segment terminals S2 to S4 connected to cells in a specific window 1110 ′ and common terminals connected to cells in a specific region 1110 ′. An activation signal may be applied to only odd-numbered or even-numbered terminals (eg, C2, C4... Cn-1) to form a vertical diagonal parallax barrier only within a specific window 1110 ′. In addition, when barrier formation is controlled in units of subcells as described above with reference to FIG. 15 or FIG. 16, common terminals are connected in units of subcells, thereby improving freedom of barrier formation in the barrier module.

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. Although the above has been described with reference to the preferred embodiments of the present invention, those skilled in the art will variously modify and change the present invention without departing from the spirit and scope of the invention as set forth in the claims below. I can understand that you can.

Accordingly, 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 stereoscopic image display apparatus for the variable window 3D display according to the embodiments of the present invention as described above can be applied to various display devices such as a computer monitor, a large TV.

Claims (16)

A stereoscopic image display apparatus for a variable region 3D display,
Irradiating a horizontal or vertical 3D image in a first window that is variably set according to a control signal input from a user among all areas, and irradiating a horizontal or vertical 2D image in an area other than the first window among the entire areas. Display module; And
A liquid crystal unit including pixels arranged in a matrix of a cell structure, a plurality of segment terminals connecting pixels of the liquid crystal unit in a horizontal direction, and a plurality of common terminals connecting pixels of the liquid crystal unit in a vertical direction; It includes a barrier module including a control unit for controlling the pixels of the liquid crystal unit,
The control unit of the barrier module is configured to display the 3D image irradiated from the first window of the display module selectively according to the control signal so that the 3D image is selectively visible to the left eye or the right eye of the viewer. A barrier in a horizontal or vertical direction is formed only in the second window that is variably set according to the control signal so as to correspond to the first window, and the barrier is not formed in an area other than the second window of the entire area of the barrier module. Control,
The cell is composed of a plurality of subcell elements in a horizontal or vertical direction, and the barrier in the horizontal or vertical direction is a unit of a subcell element group grouped into a predetermined number of subcell elements in a horizontal or vertical direction. And a barrier in a horizontal direction or a vertical direction varies in units of the subcell elements. The method of claim 1,
When the control unit forms a vertical barrier in the second window, the controller may be an odd number of all segment terminals connected to pixels corresponding to the second window and common terminals connected to pixels corresponding to the second window. Or activating any one of the even-numbered terminals. The method of claim 1,
When the control unit forms a horizontal barrier in the second window, the controller includes an odd number of all common terminals connected to pixels corresponding to the second window and segment terminals connected to pixels corresponding to the second window. Or activating any one of the even-numbered terminals. The method according to claim 2 or 3,
The matrix form of the cell structure is based on the horizontal direction,
Alternately arranging the first pixel and the second pixel, which are two pixels of different standards, in the first horizontal cell column;
Alternately arranging the third pixel and the fourth pixel, which are two pixels of different standards, in the second horizontal cell column;
And arranging the arrangement structure of the first horizontal cell column and the second horizontal cell column in the vertical direction to form a matrix structure. The method of claim 4, wherein
And the matrix structure of the cell structure does not use the fourth pixels. The method of claim 5, wherein
Selective activation of either odd or even terminals among the common terminals connected to the pixels corresponding to the second window, and odd or even among the segment terminals connected to the pixels corresponding to the second window. The selective activation of any one of the terminals selects not to use the fourth pixels. The method of claim 1,
In the first window of the display module, the left image and the right image of the 3D image are alternately arranged and irradiated alternately in a specific direction.
The left side may be selectively started from the left image or the right image in the specific direction in the first window of the display module according to the position of the second window that is variably set according to the control signal in the barrier module. And an image and the right image are repeatedly arranged and irradiated. The method of claim 7, wherein
The selection of starting from the left image or starting from the right image is made in software according to the control signal. The method of claim 1,
An area other than the first window of the display module includes a frame area surrounding the first window,
And the frame area irradiates the viewer with an image for distinguishing the 3D image from the 2D image. The method of claim 1,
The display module includes a TFT-LCD module,
And a barrier module comprising a TN-LCD module. A stereoscopic image display apparatus for a variable region 3D display,
A display module configured to irradiate a 3D image in a first window that is variably set according to a control signal input from a user among all areas, and a 2D image in an area other than the first window among the entire areas; And
A liquid crystal unit including pixels arranged in a matrix of a cell structure, a plurality of segment terminals connecting pixels of the liquid crystal unit in a horizontal direction, and a plurality of common terminals connecting pixels of the liquid crystal unit in a vertical diagonal direction; A barrier module including a control unit for controlling the pixels of the liquid crystal unit,
The connection in the vertical diagonal direction is a form of connecting the pixels of the position continuously moved in one of the left or right direction every predetermined number of rows in the vertical direction in the matrix form,
The control unit of the barrier module is configured to display the 3D image irradiated from the first window of the display module selectively according to the control signal so that the 3D image is selectively visible to the left eye or the right eye of the viewer. The barrier is formed in the vertical oblique direction only in the second window that is variably set according to the control signal so as to correspond to the first window, and the control is performed so that the barrier is not formed in an area other than the second window in the entire area of the barrier module. and,
The cell is composed of a plurality of subcell elements in a horizontal or vertical direction, and the barrier in the horizontal or vertical direction is a unit of a subcell element group grouped into a predetermined number of subcell elements in a horizontal or vertical direction. And a barrier in a horizontal direction or a vertical direction varies in units of the subcell elements. The method of claim 11,
When the vertical window barrier is formed in the second window, the controller may include all of the segment terminals connected to the pixels corresponding to the second window and common terminals connected to the pixels corresponding to the second window. A stereoscopic image display device for activating either the odd or even terminals. The method of claim 11,
In the first window of the display module, the left image and the right image of the 3D image are alternately arranged and irradiated alternately in a specific direction.
The left image is selectively started from the left image or the right image in the specific direction in the first window of the display module according to the position of the second window variably formed in the barrier module according to the control signal. And an image and the right image are repeatedly arranged and irradiated. The method of claim 13,
The selection of starting from the left image or starting from the right image is made in software according to the control signal. The method of claim 11,
An area other than the first window of the display module includes a frame area surrounding the first window,
And the frame area irradiates the viewer with an image for distinguishing the 3D image from the 2D image. The method of claim 11,
The display module includes a TFT-LCD module,
And a barrier module comprising a TN-LCD module.

Images