JP2012070112A - Display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display device capable of simultaneously displaying a three-dimensional image and a two-dimensional image.SOLUTION: The display device is capable of three-dimensional display by displaying an image using right-eye image data and left-eye image data. The display device has a first region A1 and a second region A2 as display regions 1 for displaying the image data, displays the image data for two-dimensional display in the first region A1, and displays the right-eye image data and the left-eye image data in the second region A2 within an identical frame period.

Description

  The present invention relates to a display device, and more particularly to a display device that three-dimensionally displays a three-dimensional image.

  In recent years, a display device capable of displaying right-eye image data and left-eye image data separately according to some rules, and allowing the right-eye image data to be viewed with the right eye and the left-eye image data to be viewed with the left eye so that the image can be viewed stereoscopically. Has been developed (see, for example, Patent Document 1).

JP 2007-72269 A

  Starting with the technique of Patent Document 1, the conventional 3D display device has a 3D display mode for displaying a 3D image (3D image) in 3D and a 2D display mode for displaying a 2D image (2D image) in a plane. By switching between, 3D display and 2D display by the same display device are realized.

  Under these circumstances, for example, when it is assumed that a 3D image is displayed using the upper half of the screen as a display unit and a touch panel keyboard as an operation unit is displayed on the lower half of the screen, the keyboard portion is also displayed in 3D. It is necessary to. For this reason, there is a problem that 3D keyboard display data must be prepared, or the 3D displayed keyboard is operated, so that the operability of the user is lowered.

  The advantage of displaying a 2D image at the same time while displaying an image in 3D is great. The above keyboard display is an example. In addition, for example, it can be applied to a purpose of displaying character information such as subtitles as a 2D image while displaying a video as a 3D image. Since 2D display is easier for viewers to recognize character information than 3D display, if a display device capable of displaying 3D images and 2D images at the same time is realized, it can be widely used for the above-mentioned applications. Can be expected.

  In view of the above problems, an object of the present invention is to provide a display device capable of simultaneously displaying a 3D image and a 2D image.

The present invention is a display device capable of three-dimensional display by performing image display using right-eye image data and left-eye image data,
As a display area for displaying image data, it has a first area and a second area,
Within the same frame period, two-dimensional display image data is displayed in the first area, and the right-eye image data and the left-eye image data are displayed in the second area. Features.

  In addition to the above features, the display device according to the present invention displays one of the right-eye image data and the left-eye image data in the first half of the frame period in the second region. Another feature is that the other of the right-eye image data and the left-eye image data is displayed in the latter half of the frame period.

  In addition to the above features, in the display device according to the present invention, the second region includes a plurality of line-like regions, and the line-like shape is located in odd rows or odd columns over the frame period. One of the right-eye image data and the left-eye image data is displayed in the area, and the other of the right-eye image data and the left-eye image data is displayed in the line-shaped area located in the even-numbered row or even-numbered column. Is another feature.

  In addition to the above features, the display device according to the present invention includes a display control unit that performs display control on the display area, and the display area includes a plurality of small areas arranged in a matrix, The display control unit, based on an identification code indicating whether the display area belongs to the first area or the second area attached to each of the small areas, The position of the second area is detected, and control is performed to display the two-dimensional display image data in the first area and the right-eye image data or the left-eye image data in the second area. This is another feature.

  In addition to the above features, the display device according to the present invention includes a display control unit that performs display control on the display region, and the display control unit includes coordinates of two or more specific points in the first region. Or by specifying coordinates of two or more specific points in the second area, the positions of the first area and the second area in the display area are detected, and the first area Another feature is that control is performed to display the two-dimensional display image data in the second region with the right-eye image data or the left-eye image data.

  In addition to the above features, the display device according to the present invention includes a display control unit that performs display control on the display region, and the display control unit includes coordinates of a specific reference point in the first region, By specifying the width in the row direction and the column direction based on the reference point, or the coordinates of the specific reference point in the second region and the width in the row direction and the column direction based on the reference point, The positions of the first area and the second area in the display area are detected, the two-dimensional display image data in the first area, and the right-eye image data in the second area or the Another feature is that control for displaying the image data for the left eye is performed.

  In addition to the above characteristics, the display device according to the present invention may be configured such that one of the first region and the second region is based on the coordinates of a specific reference point in the region and the reference point. Another feature is that the width is specified by specifying the width in the row direction and the column direction.

  In addition to the above-described features, the display device according to the present invention has another feature that the two-dimensional image data is the same data as the left-eye image data or the right-eye image data.

  According to the present invention, two-dimensional image data and three-dimensional image data can be displayed simultaneously in the same display area.

Schematic diagram showing schematic configuration of display device The figure which showed the transition of the image data displayed on each area | region in 1st Embodiment in time series The block diagram for demonstrating an example of the processing flow at the time of mixing 3D display and 2D display with respect to a display apparatus An example of how to specify an area Another embodiment of the method for specifying the area Another embodiment of the method for specifying the area Still another embodiment of the method for specifying the area Conceptual diagram of 3D / 2D mixed display method in the second embodiment

[First Embodiment]
FIG. 1 is a schematic diagram showing a schematic configuration of a display device of the present invention. The display device 1 has an area A1 for performing 2D display and an area A2 for performing 3D display. Hereinafter, the area A1 is referred to as “first area A1”, and the area A2 is referred to as “second area A2”.

  In the first embodiment, 3D display is realized by a frame sequential method. That is, as shown in FIG. 2, the image data displayed in the second area A2 is alternately switched between the right-eye image data d3R and the left-eye image data d3L every predetermined time. FIG. 2 shows the transition of image data displayed in the first area A1 and the second area A2 in this embodiment in chronological order.

  In FIG. 2, it is assumed that a moving image is displayed, and “_1” and “_2” are attached to indicate that the same frame is displayed. That is, in FIG. 2, “d3R_1” is the image data for the right eye of the first frame, “d3L_1” is the image data for the left eye of the first frame, and “d2_1” is the 2D display image of the first frame. Data are shown respectively. The same applies to the second frame.

  In the frame sequential method, right-eye image data and left-eye image data are alternately displayed in a time-division manner in units of frames. For example, when it is desired to display a moving image with a frame frequency of 60 Hz, the display frame frequency is set to 120 Hz, and the right-eye image data d3R is displayed in the second area A2 in the first half of one frame period, and the left-eye image data is displayed in the second half. d3L is displayed in the second area A2. Of course, the left-eye image data d3L may be displayed in the first half and the right-eye image data d3R may be displayed in the second half.

  An observer recognizes it as a 3D image by wearing glasses for 3D display. The glasses are configured to be able to switch between light transmission and light shielding. At the time of use, one of the right eye and the left eye is in a light-transmitting state and the other is in a light-shielding state, and this is repeated alternately. As the light transmitting / shading method, a shutter method using liquid crystal, a method using polarized light, or the like is employed. Actually, this is realized by synchronizing between the display device and the glasses. That is, the right eye is in a translucent state and the left eye is in a light-shielded state during the period in which the right-eye image data d3R is displayed on the display device, and the left eye is in the transparent state during the period in which the left-eye image data d3L is displayed. The light state and the right eye are blocked. In this manner, the right eye image data d3R is projected to the right eye of the observer, the left eye image data d3L is projected to the left eye, and the image displayed in the second area A2 is visually recognized by the observer as a 3D image. .

  In the case of 2D display, the same image may be projected over the right eye and left eye of the observer over one frame period. Therefore, in order to mix with 3D display, the same image data may be displayed in the first area A1 in the first half and the second half of one frame period. In FIG. 2, 2D display image data d2 is displayed over one frame period.

  FIG. 3 is a block diagram for explaining an example of a processing flow when 3D display and 2D display are mixed in the display device 1.

  The 3D data transmission unit 11 transmits 3D image data for each frame, that is, right-eye image data d3R and left-eye image data d3L to the display control unit 13. If the display control unit 13 does not receive the 2D display image data d2 from the 2D data transmission unit 15 within the same frame period, the display control unit 13 sends the 3D image data for the entire region of the display area device 1 via the driver 17. Output to the display device 1. Specifically, in the first half of one frame period, right-eye image data d3R for the entire region is output, and in the second half, left-eye image data d3L for the entire region is output.

  On the other hand, the display control unit 13 specifies the 2D image data d2 and the first area A1 from the 2D data transmission unit 15 during the same period as the 3D image data for one frame from the 3D data transmission unit 11 is received. When the position data is acquired, the 2D display image data d2 sent from the 2D data transmission unit 15 is adopted for the image data in the first area A1, and the 3D data transmission unit 11 is used for the other areas. By adopting the obtained image data, the image data for the entire area of the display device 1 is determined. Then, the image data determined in this way is output to the display device 1 via the driver 17.

  In this case, the display control unit 13 outputs 2D display image data d2 as image data in the first area A1 in both the first half and the second half of one frame period. For the area other than the first area A1, that is, the second area A2, the display control unit 13 outputs the right eye image data d3R for the entire area in the first half of one frame period, and the left eye for the entire area in the latter half. Image data d3L is output.

  For example, when the user performs a predetermined operation, the 2D data transmission unit 15 transmits the 2D image data d2 and the position data for specifying the first area A1 to the display control unit 13 over a predetermined frame period. The configuration. By adopting 2D keyboard image data as the 2D image data d2 and data relating to the area where the keyboard is displayed as the position data, a predetermined area (that is, the first area A1) in the display device 1 according to a user instruction. In addition, a keyboard displayed in 2D can be displayed. A 3D image is displayed in the second area A2.

  At this time, the display device 1 may add a keyboard function to the surface portion in the first area A1 when the user performs the predetermined operation.

  In FIG. 3, the 3D data transmission unit 11 and the 2D data transmission unit 15 are conceptually illustrated separately, but both processes may be executed in the same processing unit. Further, when executed by different processing units, they may be synchronized with each other.

  Hereinafter, a method for defining the positions of the first region A1 and the second region A2 will be described.

  In FIG. 4, the entire area of the display device 1 is conceptually divided into a plurality of blocks (here, n × m blocks). A certain block group is defined as a first area A1, and the other block is defined as a second area A2. Which block group is the first area A1 and which block group is the second area A2 may be determined for each frame, or may be fixed at all times.

  The display control unit 13 is configured so that each block can be identified by a code. Then, the 2D data transmission unit 15 transmits to the display control unit 13 as position data a block that functions as the first area A1 and is designated by a code group. The display control unit 13 recognizes that an area defined by a plurality of blocks corresponding to the designated code group functions as the first area A1 and other areas function as the second area A2. This block corresponds to a “small area”.

  Further, as shown in FIG. 5, by adding binary information (0/1) indicating whether each block corresponds to the first area A1 or the second area A2, the first area A1 and the first area The two areas A2 may be designated. In this case, the 2D data transmission unit 15 provides the display control unit 13 with a bit string composed of continuous binary information corresponding to each block from the upper left block to the lower right block, for example, as position data. It is possible to designate the first area A1 and the second area A2. In FIG. 5, the first area A1 is displayed as “1” and the second area A2 is displayed as “0”.

  According to the method of FIG. 4 or FIG. 5, the second region A2 can be designated in an arbitrary shape.

  4 and 5, the area is defined in units of blocks, but may be defined in units of pixels. When specifying in block units, there is a demerit that the degree of freedom is lower than when specifying in pixel units, but the number of cases in the specifying method is suppressed, so that the processing amount of divided display control can be reduced. There is merit in.

  FIG. 6 is a conceptual diagram showing another example of how to divide regions. In FIG. 6, the 2D data transmission unit 15 designates an area to function as the first area A1 by coordinates on the entire display area. Here, the coordinates (Xb1, Yb1) and (Xb2, Yb2) of the two points B1 and B2 on the upper left and lower right of the first area A1 are designated, and a rectangular area having these two coordinates as diagonal vertices is designated. It functions as the first area A1. Of course, it is good also as what prescribes | regulates by an upper right coordinate and a lower left coordinate, and you may designate the coordinate of all the vertices. Further, the coordinates of each vertex constituting the first area A1 may be designated.

  FIG. 7 is a conceptual diagram showing still another embodiment of how to divide regions. In FIG. 7, the 2D data transmitting unit 15 defines an area to function as the second area A2 by the coordinates of the reference point, the X-direction width Xw from the reference point, and the Y-direction width Yw. In FIG. 7, the right direction on the drawing is the X direction, the lower direction is the Y direction, and the reference point is the upper left vertex B1 of the rectangular area.

  Of course, the reference point may be another vertex of the rectangular area, or may be a point in the rectangle other than the vertex (for example, a point at the center position).

[Second Embodiment]
In the display device 1a of the second embodiment, 3D display is realized by a line alternate method. That is, as shown in FIG. 8, in the second area A2 where 3D display is performed, the image data d3R for the right eye is displayed on the odd lines (Lo), and the image data d3L for the left eye is displayed on the even lines (Le). In the display device 1a, a parallax barrier or the like is provided in advance, and information displayed on the odd lines Lo is incident only on the observer's right eye, and information displayed on the even lines Le is incident only on the observer's left eye. Set as follows.

  In this method, the observer can view a 3D image without wearing an instrument such as glasses.

  When the frame frequency is 60 Hz as in the first embodiment, the right-eye image data d3R is stored in the second area A2 in the odd line Lo in the second area A2 in one frame period (one frame period). The left-eye image data d3L is displayed on the even line Le. This enables 3D display.

  In order to mix 2D display and 3D display, the second area A2 is displayed by the above method, while 2D display image data d2 is set to 1 in the first area A1 regardless of even lines / odd lines. Display over the frame period. Thereby, 2D display and 3D display can be mixed. In addition, when 2D display is performed over the entire region, a 2D display image may be displayed over one frame period for even lines / odd lines in all regions.

  In the present embodiment, it is assumed that each line (line-shaped region) is scanned in the horizontal direction toward the paper surface, but may be realized by a vertical line.

  According to the embodiment described above, 2D images and 3D images can be displayed simultaneously on the same display device. In the above-described example, the frame sequential method and the line alternate method have been described as the 3D image display method. However, the 3D image display method is not limited to these methods. That is, the display area is divided into a first area A1 for displaying a 2D image and a second area A2 for displaying a 3D image, and the image data for two-dimensional display is displayed in the first area A1 within the same frame period. Any aspect in which 3D display image data (right-eye image data d3R, left-eye image data d3L) is displayed in the second area A2 is within the technical scope assumed by the present invention.

[Another embodiment]
<1> In each of the above embodiments, instead of displaying the 2D image data d2 in the first area A1, the 2D display is performed by displaying the 3D right-eye image data d3R and the left-eye image data d3L over one frame period. May be realized. In this case, in FIG. 3, the 2D data transmission unit 15 transmits only position data to the display control unit 13, and the display control unit 13 includes the first area A <b> 1 among the 3D data transmitted from the 3D data transmission unit 11. For the corresponding image data, d3R or d3L may be selected and output over one frame period.

  <2> In the above embodiment, the 2D data transmission unit 15 transmits the position data for defining the first area A1 to the display control unit 13 together with the 2D data. On the other hand, the 3D data transmission unit 11 may transmit position data for defining the first region A1 or the second region A2 to the display control unit 13. Of course, a processing unit only for defining the first region A1 and the second region A2 may be provided separately from the data transmission units 11 and 15.

1: Display device 11: 3D data transmission unit 13: Display control unit 15: 2D data transmission unit 17: Driver A1: First area (2D display area)
A2: Second area (3D display area)
B1, B2: Reference point d2: 2D display image d3L: 3D display left eye image d3R: 3D display right eye image Le: Odd-numbered row Lo: Even-numbered row

Claims (7)

A display device capable of three-dimensional display by performing image display using right-eye image data and left-eye image data,
As a display area for displaying image data, it has a first area and a second area,
Within the same frame period, two-dimensional display image data is displayed in the first area, and the right-eye image data and the left-eye image data are displayed in the second area. Characteristic display device.   In the second region, one of the right-eye image data and the left-eye image data is displayed in the first half of the frame period, and the right-eye image is displayed in the second half of the frame period. The display device according to claim 1, wherein the other of the data and the image data for the left eye is displayed.   The second area is composed of a plurality of line-shaped areas, and one of the right-eye image data and the left-eye image data is included in the line-shaped areas located in odd rows or odd columns over the frame period. The display device according to claim 1, wherein the other of the right-eye image data and the left-eye image data is displayed in the line-shaped region located in an even-numbered row or even-numbered column. A display control unit that performs display control on the display area;
The display area is composed of a plurality of small areas arranged in a matrix,
The display control unit, based on an identification code indicating whether the display area belongs to the first area or the second area attached to each of the small areas, The position of the second area is detected, and control is performed to display the two-dimensional display image data in the first area and the right-eye image data or the left-eye image data in the second area. The display device according to any one of claims 1 to 3. A display control unit that performs display control on the display area;
The display control unit is configured such that the coordinates of two or more specific points in the first region or the coordinates of two or more specific points in the second region are designated, whereby the first region in the display region is specified. And a control for detecting the position of the second region and displaying the two-dimensional display image data in the first region and the right-eye image data or the left-eye image data in the second region. The display device according to claim 1, wherein the display device is performed. A display control unit that performs display control on the display area;
The display control unit includes coordinates of a specific reference point in the first area and a width in a row direction and a column direction based on the reference point, or coordinates of a specific reference point in the second area and the reference. By specifying the width in the row direction and the column direction based on the points, the positions of the first area and the second area in the display area are detected, and the two-dimensional display is performed in the first area. 4. The display device according to claim 1, wherein the image data is controlled to display the right-eye image data or the left-eye image data in the second region. 5.   The display device according to claim 1, wherein the two-dimensional image data is the same data as the left-eye image data or the right-eye image data.

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