JP2010060773A - Image display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate partial switching between a two-dimensional display and a three-dimensional display. <P>SOLUTION: The image display device includes: a two-dimensional display device 10 having a plurality of pixels 11, for displaying an image based on two-dimensional image data or three-dimensional image data; and a three-dimensional display optical device 20 disposed facing the two-dimensional display device 10. The three-dimensional display optical device 20 is configured to, in the two-dimensional display area, transmit light beams propagating from the pixels 11 of the two-dimensional display device 10 without deflection. The three-dimensional display optical device 20 is configured to, in the three-dimensional display area, change the transmission state of the light beams so as to deflect the light beams propagating from the pixels 11 into a plurality of viewing angle directions required for the three-dimensional display. The two-dimensional display device 10 is configured to display the image in the two-dimensional display area based on the two-dimensional display data, and display the image in the three-dimensional display area based on the three-dimensional image data. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an image display device capable of switching between two-dimensional display and three-dimensional display.

  2. Description of the Related Art Conventionally, binocular or multi-view stereoscopic display devices that realize stereoscopic viewing by showing parallax images with parallax to both eyes of an observer are known. Further, as a method for realizing a more natural stereoscopic view, there is a spatial image type stereoscopic display device. In the aerial image method, a plurality of light beams having different radiation directions are emitted into the space, thereby forming a spatial image corresponding to a plurality of viewing angles.

  As a method for realizing these stereoscopic display devices, for example, a two-dimensional display device such as a liquid crystal display, and an optical device for three-dimensional display that deflects display image light from the two-dimensional display device in a plurality of viewing angle directions; A combination of these is known. As an optical device for three-dimensional display, for example, a lenticular lens in which a plurality of cylindrical lenses (cylindrical lenses) are arranged in parallel is used. Moreover, what uses the microlens array which has arrange | positioned the microlens in the shape of a compound eye is also known (refer patent document 1). In general, the method using a lenticular lens can handle only parallax in the left-right direction, but the method using a microlens array can also handle parallax in other directions. Easy to achieve parallax.

  By the way, Non-Patent Document 1 realizes two display modes of a two-dimensional display mode and a three-dimensional display mode by using a switchable lenticular lens having two modes as an optical device for three-dimensional display. A display device is disclosed. In this display device, in the two-dimensional display mode, the switchable lenticular lens has no refractive power, and the display image light from the two-dimensional display device is allowed to pass through as it is. In the three-dimensional display mode, the switchable lenticular lens has a positive refractive power, and stereoscopic display is realized by deflecting display image light from the two-dimensional display device in a plurality of viewing angle directions.

Japanese Patent No. 3788394 Dick K.G. de Boer, Martin G.H.Hiddink, Maarten Sluijter, Oscar H. Willemsen and Siebe T. de Zwart, “Switchable lenticular based 2D / 3D displays”, SPIE Vol. 6490, 64900R (2007)

  However, in the display device described in Non-Patent Document 1, since the entire screen is switched between the two-dimensional display mode and the three-dimensional display mode, it is structurally impossible to perform partial three-dimensional display. It has become. For this reason, for example, as shown in FIG. 8, a display method in which one area is partially set as a three-dimensional display area 61 and the other area is set as a two-dimensional display area 62 within one screen 60 cannot be realized. . In order to perform such partial 3D display, the optical device for 3D display itself must be configured to be structurally and partially switchable between the 2D display mode and the 3D display mode. .

  In addition, it is necessary to appropriately switch the video display on the 2D display device side between the 2D display mode and the 3D display mode. When three-dimensional display is performed, a plurality of pixels in the two-dimensional display device are included in one pixel as the three-dimensional display, so that the display resolution is lower than that in the two-dimensional display mode. The display resolution in the three-dimensional display mode depends on the structure of an optical device for three-dimensional display such as a lenticular lens. For this reason, when the partial 3D display shown in FIG. 8 is performed, if the entire screen of the 2D display device is adjusted to the display resolution in the 3D display mode, the video display in the 2D display area 62 is performed. The image quality of the image is degraded as compared with the video display in the original two-dimensional display mode. The area setting of the three-dimensional display area 61 needs to be a position and a size corresponding to the structure of the optical device for three-dimensional display as well as the pixel position of the two-dimensional display device.

  The present invention has been made in view of such problems, and an object thereof is to provide an image display device that can easily perform partial switching between two-dimensional display and three-dimensional display. .

  An image display device of the present invention has a plurality of pixels, a two-dimensional display unit that performs video display based on two-dimensional image data or three-dimensional image data, and is arranged opposite to the two-dimensional display unit to perform two-dimensional display. Or a three-dimensional display optical device that changes the state of passage of light from each pixel of the two-dimensional display part partially and selectively in units of divided areas of a predetermined size depending on whether to perform three-dimensional display. It is a thing. The optical device for 3D display allows light from each pixel of the 2D display unit to pass without being deflected in an area where 2D display is performed, and from each pixel of the 2D display unit in an area where 3D display is performed. In the area where the two-dimensional display unit performs the two-dimensional display, the video display based on the two-dimensional image data is performed so as to deflect the light beam in the plurality of viewing angle directions required for the three-dimensional display. In an area where 3D display is performed, video display based on 3D image data is performed.

In the image display device of the present invention, video display based on 2D image data or 3D image data is performed in the 2D display unit. In the optical device for 3D display, the passage state of the light beam from each pixel of the 2D display unit is partially and selectively in units of divided areas depending on whether 2D display or 3D display is performed. Change.
More specifically, in the optical device for three-dimensional display, in the area where two-dimensional display is performed, the light from each pixel of the two-dimensional display unit passes without being deflected, and in the area where three-dimensional display is performed, the two-dimensional display unit The passing state is changed so as to deflect the light rays from the respective pixels in a plurality of viewing angle directions required for three-dimensional display. In the 2D display unit, video display based on 2D image data is performed in an area where 2D display is performed, and video display based on 3D image data is performed in an area where 3D display is performed.

  Here, the image display apparatus according to the present invention includes a designation unit that designates an area for performing the three-dimensional display on the screen of the two-dimensional display unit in units of pixels, and a position and a size of the area designated by the designation unit. The display optical device may further include correction means for correcting the position and size in units of divided areas. The two-dimensional display unit may perform video display based on the three-dimensional image data in the area corrected by the correction unit, and may perform video display based on the two-dimensional image data in other areas. In addition, the optical device for 3D display sets an area corresponding to the area corrected by the correcting means as an area for performing 3D display, and other areas are set as areas for performing 2D display. May be.

In such a configuration, the position and size of the area specified by the specifying means are corrected by the correcting means to the position and size in units of divided areas in the three-dimensional display optical device. In the two-dimensional display unit, video display based on the two-dimensional image data or the three-dimensional image data is performed according to the area corrected by the correction unit. In the optical device for 3D display, an area corresponding to the area corrected by the correcting means is set as an area for performing 3D display, and the light from each pixel of the 2D display unit is necessary for 3D display in that area. Are deflected in a plurality of viewing angle directions.
Thereby, the setting of the area for performing the three-dimensional display is appropriately set not only at the pixel position on the two-dimensional display unit side but also at a position and a size according to the structure of the optical device for three-dimensional display. In addition, the display suitable for the two-dimensional display is made in the area for performing the two-dimensional display, and the display suitable for the three-dimensional display is made in the area for performing the three-dimensional display. Display state is realized.

  According to the image display device of the present invention, in the optical device for three-dimensional display, the passage state of the light beam from each pixel of the two-dimensional display unit is set to a predetermined size depending on whether two-dimensional display or three-dimensional display is performed. Since it is changed partially and selectively in units of divided areas, partial switching between the two-dimensional display and the three-dimensional display can be easily performed.

  According to the image display device of the present invention, the setting of the area for performing the specified 3D display on the screen of the 2D display unit is set to the position and size in units of divided areas in the optical device for 3D display. I corrected it. Thereby, it is possible to easily and appropriately set an area for performing the three-dimensional display. In this case, the two-dimensional display unit displays a video based on the two-dimensional image data or the three-dimensional image data in accordance with the area corrected by the correction unit. In the three-dimensional display optical device, the correction unit corrects the image. An area corresponding to the designated area is set as an area for three-dimensional display. Thereby, a display state suitable for each of the two-dimensional display and the three-dimensional display can be easily realized.

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

[Overall configuration of image display device]
1 and 2 show an example of the overall configuration of an image display apparatus according to an embodiment of the present invention. The image display device includes a two-dimensional display device 10 that performs video display based on two-dimensional image data or three-dimensional image data, and a three-dimensional display optical device 20 that is disposed to face the two-dimensional display device 10. Yes. For example, as shown in FIG. 8, the image display device displays such that a certain area is partially set as a three-dimensional display area 61 and another area is set as a two-dimensional display area 62 within one screen 60. It is possible to do. FIG. 1 schematically shows a configuration in a state where the entire screen is a two-dimensional display area 62, and FIG. 2 shows a configuration in a state where a part is three-dimensionally displayed as a three-dimensional display area 61. This is shown schematically.

The two-dimensional display device 10 is configured by a liquid crystal display, for example, and includes a plurality of pixels 11 including red pixels 11R, green pixels 11G, and blue pixels 11B, and the plurality of pixels 11 are arranged in a matrix. ing. The 2D display device 10 displays video based on 2D image data in an area where 2D display is performed, and performs video display based on 3D image data in an area where 3D display is performed. The three-dimensional image data is data including a plurality of parallax images corresponding to a plurality of viewing angle directions in a three-dimensional display, for example.
In the present embodiment, the two-dimensional display device 10 corresponds to a specific example of “two-dimensional display unit” in the present invention.

  The three-dimensional display optical device 20 is provided with a plurality of divided areas of a predetermined size in a matrix in a plane facing the two-dimensional display device 10. The plurality of divided areas are driven by an active matrix method, for example, so that the passage state of the light beam from each pixel 11 of the two-dimensional display device 10 depends on whether two-dimensional display or three-dimensional display is performed. It is configured to be able to change partially and selectively in units of divided areas. More specifically, each of the plurality of divided areas is formed with a switchable microlens 30 in which the lens action is switched according to application of a voltage, for example. That is, in the three-dimensional display optical device 20, a plurality of switchable microlenses 30 are formed in a matrix in a plane facing the two-dimensional display device 10. The plurality of switchable microlenses 30 are voltage-driven, for example, by an active matrix method, so that the passage state of light rays from each pixel 11 of the two-dimensional display device 10 is partially changed by the switchable microlens 30 unit. And it is made to change selectively.

  As a result, the optical device 20 for 3D display assumes that there is no refractive action of the convex lens by the microlens 30 in the area where 2D display is performed, for example, as shown in FIG. The light beams L0, L1, and L2 are passed through without being deflected. Further, in the area where the three-dimensional display is performed, for example, as shown in FIG. 2, the refraction action of the convex lens by the microlens 30 is generated, so that the light beams L1 and L2 from each pixel 11 of the two-dimensional display device 10 The light is deflected in a plurality of viewing angle directions required for display. FIG. 2 shows an example in which the pixels 11 of the two-dimensional display device 10 are allocated to one microlens 30 by 3 pixels × 3 pixels. Further, in FIGS. 1 and 2, in order to explain the optical action of the three-dimensional display optical device 20 in an easy-to-understand manner, the structure on the surface of the three-dimensional display optical device 20 depends on whether or not three-dimensional display is performed. It is shown as if a microlens 30 is formed. Actually, as shown in FIGS. 3 and 4 to be described later, the lens action by the microlens 30 is caused by the refractive index partially changing inside the optical device 20 for three-dimensional display. It is configured.

[Specific configuration example of optical device for three-dimensional display]
FIG. 3 shows a specific configuration example of the three-dimensional display optical device 20. FIG. 4 shows a state in which the three-dimensional display optical device 20 shown in FIG. The three-dimensional display optical device 20 includes a transparent substrate 21 and a transparent substrate 22 made of, for example, a glass material, and a liquid crystal layer 23 sandwiched between the two transparent substrates 21 and 22.

  A plurality of individual electrodes 24 made of a transparent conductive film such as an ITO (Indium Tin Oxide) film are formed in a matrix on the surface of the one transparent substrate 21 on the liquid crystal layer 23 side. On the surface of the other transparent substrate 22 on the liquid crystal layer 23 side, a common electrode 25 made of a transparent conductive film such as an ITO film is formed on almost the entire surface.

  The liquid crystal layer 23 has a configuration in which liquid crystal molecules 31 are filled in a mold molded into a concave lens shape by a manufacturing method called a replica method (Photoreplication Process), for example. An alignment film 32 is provided in a plane on the surface of the liquid crystal layer 23 on the one transparent substrate 21 side. On the other transparent substrate 22 side in the liquid crystal layer 23, an alignment film 33 is provided which is convex according to the mold of the replica 34. That is, in the liquid crystal layer 23, the liquid crystal molecules 31 are filled between the lower planar alignment film 32 and the upper convex alignment film 33, and the other region of the upper layer is a replica 34. Thereby, in the liquid crystal layer 23, the portion filled with the liquid crystal molecules 31 has a convex shape. This convex portion is a portion that becomes the microlens 30. A plurality of the convex portions are formed in a matrix corresponding to the individual electrodes 24. That is, a plurality of portions to be the microlenses 30 are formed in a matrix corresponding to the individual electrodes 24. Thereby, as described below, the refractive power as a convex lens is selectively given to the microlens 30 in accordance with the application of a voltage.

  Here, it is assumed that a common voltage applied to the upper common electrode 25 is VA, and a predetermined drive voltage applied to the plurality of lower individual electrodes 24 is VB1, VB2, VB3,. In the liquid crystal layer 23, the difference voltage (VA-VB1), (VA-VB2), (VA-VB3),... . The liquid crystal molecules 31 have, for example, a refractive index ellipsoidal structure in which the refractive index differs with respect to the passing light beam in the longitudinal direction and the short direction. Further, the liquid crystal molecules 31 have a molecular arrangement that changes in response to voltage application. Here, the refractive index with respect to the passing light, which is given by a molecular arrangement in a state where a predetermined voltage is given as a differential voltage to the liquid crystal molecules 31, is n0. Further, the refractive index with respect to the passing ray, which is given by the molecular arrangement in a state where the differential voltage is zero, that is, (VA−VB1) = 0, (VA−VB2) = 0, (VA−VB3) = 0,. Let ne. Further, the magnitude of the refractive index has a relationship of ne> n0. The refractive index of the replica 34 is set to be the same as the lower refractive index n <b> 0 in a state where a predetermined voltage is applied as a differential voltage to the liquid crystal molecules 31.

  Thereby, in a state where the difference voltage is zero, a difference in refractive index occurs between the refractive index ne of the liquid crystal molecules 31 and the refractive index of the replica 34 with respect to the passing light, and the microlens 30 acts as a convex lens. As a result, as shown in FIG. 4, the light beams L0, L1, and L2 passing through the microlens 30 acting as a convex lens are deflected in a plurality of viewing angle directions. On the other hand, when the difference voltage is a predetermined voltage, the refractive index n0 of the liquid crystal molecules 31 and the refractive index of the replica 34 with respect to the passing light are the same, and the portion corresponding to the microlens 30 does not function as a convex lens. As a result, as shown in FIG. 3, the light rays L0, L1, and L2 that pass through the liquid crystal layer 23 are transmitted without being deflected. As described above, the three-dimensional display optical device 20 has a configuration of a switchable microlens array that can partially switch the lens action in accordance with the application of a voltage.

  By the way, the drive voltage of the optical device 20 for three-dimensional display is controlled by an active matrix method because when there are many portions to be the microlenses 30, it is expensive to provide wiring for each lens portion. It is desirable to control with.

  FIG. 5 shows a wiring example of the drive circuit in the active matrix system. As described above, a plurality of portions to be the microlens 30 and the individual electrodes 24 are formed in a matrix corresponding to each other in the vertical direction (Yi direction) and the horizontal direction (Xi direction). The transistor T1 is connected to the individual electrode 24 at the intersection of the matrix as shown in FIG. Then, the output voltage (Xi, Yi) in FIG. 5 is applied to the individual electrodes 24 as the drive voltages shown in FIGS. 3 and 4 as VB1, VB2, VB3,. In this way, for example, as shown in FIG. 9, if the three-dimensional display area 61 is defined as having the horizontal direction defined from coordinates Xs to coordinates Xe and the vertical direction defined from coordinates Ys to coordinates Ye, By applying a predetermined drive voltage to the region, it is possible to easily generate a lens action only in the three-dimensional display area 61 and perform three-dimensional display.

[Configuration including control circuit of image display device]
FIG. 7 shows a configuration example of the image display apparatus according to this embodiment including the control circuit. The image display device includes a display device 1, a controller 2, a connection cable 3, and an operation unit 4. The display device 1 includes the two-dimensional display device 10 and the three-dimensional display optical device 20 shown in FIGS.
In the present embodiment, the operation unit 4 corresponds to a specific example of “designating means” in the present invention. The controller 2 corresponds to a specific example of “correction means” in the present invention.

  The connection cable 3 is an interface that interconnects the display device 1 and the controller 2, and is, for example, a cable of HDMI (High Definition Multimedia Interface) standard. The connection cable 3 has a data line 55 and a control line 56. The data line 55 is mainly for transmitting 2D image data or 3D image data to the 2D display device 10 in the display device 1. Data line 55 also includes a clock line. The control line 56 is mainly for transmitting a control signal between the controller 2 and the three-dimensional display optical device 20. The control line 56 corresponds to, for example, DDC (Display Data Control Line) in the HDMI standard.

  The controller 2 is composed of, for example, a PC (Personal Computer) main body, and includes a 2D image data supply unit 51, a 3D image data supply unit 52, a 3D application 53, and an application manager 54. The 2D image data supply unit 51 supplies 2D image data to the 2D display device 10 via the data line 55. The 3D image data supply unit 52 supplies 3D image data to the 2D display device 10 via the data line 55. The 2D image data supply unit 51 and the 3D image data supply unit 52 have a recording medium such as an HDD (Hard Disk Drive), for example, and store image data. Note that image data may be supplied from outside the controller 2.

  The operation unit 4 is configured by a pointing device such as a mouse. It is operated by the user. The user can designate an area for performing three-dimensional display on the screen of the two-dimensional display device 10 in units of pixels via the operation unit 4.

  The 3D application 53 and the application manager 54 perform display control related to three-dimensional display. For example, the 3D application 53 and the application manager 54 are configured to control which area in the display device 1 is set as an area for three-dimensional display in accordance with an instruction from the operation unit 4. As described later, the 3D application 53 and the application manager 54 divide the position and size of the 3D display area designated via the operation unit 4 into divided areas (microlens 30) in the 3D display optical device 20, for example. Control is performed to correct the position and size in units.

[Operation of image display device]
Next, the operation of the image display apparatus according to this embodiment will be described.

  In this image display apparatus, the two-dimensional display device 10 performs video display based on two-dimensional image data or three-dimensional image data. In the three-dimensional display optical device 20, the state of passage of light from each pixel 11 of the two-dimensional display device 10 is partially divided in units of divided areas according to whether two-dimensional display or three-dimensional display is performed. And selectively change. More specifically, in the optical device 20 for 3D display, the light beam from each pixel 11 of the 2D display device 10 is allowed to pass without being deflected in an area where 2D display is performed. Further, in the area where the three-dimensional display is performed, the light rays from the respective pixels 11 of the two-dimensional display device 10 are deflected in a plurality of viewing angle directions required for the three-dimensional display as shown in FIGS. Change the passing state. In the 2D display device 10, video display based on 2D image data is performed in an area where 2D display is performed, and video display based on 3D image data is performed in an area where 3D display is performed.

  By the way, the maximum resolution of current computer display devices is determined by the number of pixels of the display. On the other hand, even if data is sent to a display device with a resolution smaller than the maximum resolution as a computer setting, data can be adjusted on the display device side when displaying a two-dimensional image. ing. In general, when a two-dimensional display application window is displayed on the display, the display area can be set almost freely in an analog manner. Further, even when the number of data areas is determined, such as when displaying a two-dimensional moving image, the position of the data start point can be selected in an analog manner.

  However, in general, a three-dimensional display device includes a plurality of two-dimensional pixels in one pixel as a three-dimensional display that depends on the structure of an optical device (optical lens or shielding pattern), so that the display area is enlarged or reduced in an analog manner. It is extremely difficult to do. That is, in the case where partial 3D display is possible as in the present embodiment, the display area size is in accordance with the number of pixels of the 3D display optical device 20 (number of microlenses 30). Analogue scaling based on the number of pixels of the three-dimensional display device 10 is difficult. Further, when displaying a three-dimensional display application window on the two-dimensional display device 10, coordinates such as Xs, Xe, Ys, Ye as shown in FIG. 9 cannot be freely set. In the case of displaying three-dimensional data, the positions of Xs and Ys that are data start points cannot be arbitrarily set. These settings need to be set to positions and sizes according to the structure of the three-dimensional display optical device 20.

  In the image display apparatus according to the present embodiment, the user designates an area for performing three-dimensional display on the screen of the two-dimensional display device 10 in units of pixels via the operation unit 4 illustrated in FIG. This designation can be performed even when the video display based on the two-dimensional image data is being performed on the screen of the two-dimensional display device 10. The controller 2 corrects the position and size of the designated area to a position and size in units of divided areas (microlenses 30) in the three-dimensional display optical device 20. The two-dimensional display device 10 performs video display based on the two-dimensional image data or the three-dimensional image data according to the corrected area. In the optical device 20 for 3D display, an area corresponding to the corrected area is set as an area for performing 3D display, and light from each pixel 11 of the 2D display device 10 is necessary for 3D display in that area. Are deflected in a plurality of viewing angle directions. The other areas are set as areas for two-dimensional display. Thereby, the setting of the area for performing the three-dimensional display is appropriately set not only at the pixel position on the two-dimensional display device 10 side but also at a position and a size according to the structure of the optical device 20 for three-dimensional display. In addition, the display suitable for the two-dimensional display is made in the area for performing the two-dimensional display, and the display suitable for the three-dimensional display is made in the area for performing the three-dimensional display, which is suitable for each of the two-dimensional display and the three-dimensional display. Display state is realized.

  The operation of correcting the three-dimensional display area will be described more specifically with reference to FIG. FIG. 6 shows a correspondence relationship between the pixels 11 in the two-dimensional display device 10 and the divided areas (microlenses 30) in the optical device 20 for three-dimensional display.

  First, it is assumed that the user designates the coordinates of Xs, Xe, Ys, Ye as shown in FIG. 9 as the three-dimensional display area 61 via the operation unit 4. In this case, the controller 2 needs to inquire and confirm whether the designated coordinate position and area size are positions in units of divided areas (microlenses 30) in the three-dimensional display optical device 20. For example, when the data start point is in the microlens 30 as in the selection position 42 shown in FIG. 6, it is necessary to correct the data start point to an appropriate position with the microlens 30 as a unit. . Here, in FIG. 6, the portions indicated by small circles indicate the coordinates of the boundary points of the pixels 11 in the two-dimensional display device 10. In particular, a portion indicated by a small black circle is a three-dimensional display grid 41 with the formation area of the microlens 30 as a unit. The coordinates of Xs, Xe, Ys, Ye in the three-dimensional display area 61 as shown in FIG. 9 need to be the coordinates of the three-dimensional display grid 41. Therefore, when the selection position 42 as shown in FIG. 6 is designated, the position is corrected so as to be the coordinates of the three-dimensional display grid 41 at the closest position, for example.

  The application manager 54 of the controller 2 acquires information on the structure of the three-dimensional display optical device 20 from the three-dimensional display optical device 20 via the control line 56 of the connection cable 3, and based on the acquired information. The position is corrected as described above. The application manager 54 of the controller 2 causes the 3D display optical device 20 to set an area based on the corrected position as an area for performing 3D display. In the three-dimensional display optical device 20, the refractive action of the microlens 30 is generated in the set area as shown in FIGS. The application manager 54 also performs control such that video display based on the three-dimensional image data is performed in the area based on the corrected position in the two-dimensional display device 10. This is because the application manager 54 causes the 3D application 53 to appropriately process the 2D image data from the 2D image data supply unit 51 and the 3D image data from the 3D image data supply unit 52. Done in This image processed image data in which 2D image data and 3D image data are appropriately mixed is supplied to the 2D display device 10 via the data line 55. As a result, in the 2D display device 10, video display based on the 3D image data is performed in the corrected 3D display area 61, and video display based on the 2D image data is performed in the other areas.

  Thus, in the present embodiment, transmission of control data between the controller 2 and the three-dimensional display optical device 20 and transmission of image data between the controller 2 and the two-dimensional display device 10 are performed. This is done on separate lines of the connection cable 3. Thereby, for example, even when the 2D image data is transmitted between the controller 2 and the 2D display device 10 (a 2D image is displayed on the 2D display device 10), The setting control of the dimension display area can be easily performed.

  As described above, according to the image display apparatus according to the present embodiment, in the three-dimensional display optical device 20, the two-dimensional display device 10 can be controlled according to whether two-dimensional display or three-dimensional display is performed. Since the passage state of the light beam from each pixel 11 is changed partially and selectively in divided area units of a predetermined size, partial switching between the two-dimensional display and the three-dimensional display can be easily performed. it can.

In addition, the setting of the area for performing the three-dimensional display designated on the screen of the two-dimensional display device 10 is corrected to the position and size in units of divided areas (microlenses 30) in the three-dimensional display optical device 20. I made it. Thereby, it is possible to easily and appropriately set an area for performing the three-dimensional display. In this case, the two-dimensional display device 10 performs video display based on the two-dimensional image data or the three-dimensional image data according to the corrected area, and the three-dimensional display optical device 20 displays the corrected area. The corresponding area is set as an area for 3D display. Thereby, a display state suitable for each of the two-dimensional display and the three-dimensional display can be easily realized.
<Other embodiments>

The present invention is not limited to the above embodiment, and other modifications can be made.
For example, the optical device for three-dimensional display applied to the present invention is not limited to the method using the microlens 30 exemplified in the above embodiment. For example, a lenticular lens type in which a plurality of cylindrical lenses (cylindrical lenses) are arranged in parallel may be used. That is, in the structure shown in FIGS. 3 and 4, the switchable microlenses 30 are arranged in a matrix, but instead, a switchable cylindrical lens may be arranged in a matrix. .

  Further, in the above embodiment, the case where there is only one three-dimensional display area 61 has been described as an example in order to simplify the description. However, two or more three-dimensional display areas 61 can be provided in one screen. It is. Also in this case, an area corresponding to the three-dimensional display area 61 is selectively formed into a lens shape by the three-dimensional display optical device 20, and an image based on the three-dimensional image data is displayed in the three-dimensional display area 61 of the two-dimensional display device 10. Display may be performed. Further, the present invention is not limited to the case where the three-dimensional display area 61 is partially used.

It is sectional drawing which shows an example of the whole structure of the image display apparatus which concerns on one embodiment of this invention. It is sectional drawing which shows typically the state which made the image display apparatus which concerns on one embodiment of this invention the three-dimensional display state partially. It is sectional drawing which shows one structural example of the optical device for three-dimensional displays in the image display apparatus which concerns on one embodiment of this invention. FIG. 4 is a cross-sectional view schematically showing a state in which the three-dimensional display optical device shown in FIG. 3 is partially in a three-dimensional display state. FIG. 4 is a circuit diagram showing an example of a drive circuit of the three-dimensional display optical device shown in FIG. 3. It is a top view which shows the positional relationship of the pixel position of the two-dimensional display device in the image display apparatus which concerns on one embodiment of this invention, and the unit area of the optical device for three-dimensional displays. It is a block diagram which shows an example of the whole structure containing the control circuit of the image display apparatus which concerns on one embodiment of this invention. It is explanatory drawing which shows an example of the screen structure in the image display apparatus which concerns on one embodiment of this invention. It is explanatory drawing which shows an example of the coordinate of the three-dimensional display area in the image display apparatus which concerns on one embodiment of this invention.

Explanation of symbols

  L0, L1, L2 ... light, T1 ... transistor, 1 ... display device, 2 ... controller, 3 ... connection cable, 4 ... operation unit, 10 ... 2D display device, 11 (11R, 11G, 11B) ... pixel, 20 ... Optical device for three-dimensional display, 21, 22 ... Transparent substrate, 23 ... Liquid crystal layer, 24 ... Individual electrode, 25 ... Common electrode, 30 ... Microlens, 31 ... Liquid crystal molecule, 32, 33 ... Alignment film, 34 ... Replica 41 ... 3D display grid, 42 ... selected position, 43 ... correction position, 51 ... 2D image data supply unit, 52 ... 3D image data supply unit, 53 ... 3D application, 54 ... application manager, 55 ... data Line 56... Control line 60. Display screen 61. Three-dimensional display area 62. Two-dimensional display area

Claims (5)

A two-dimensional display unit having a plurality of pixels and performing video display based on two-dimensional image data or three-dimensional image data;
Depending on whether two-dimensional display or three-dimensional display is performed, the light beam from each pixel of the two-dimensional display unit is partially passed in units of divided areas of a predetermined size. And an optical device for three-dimensional display that selectively changes,
The optical device for three-dimensional display allows light from each pixel of the two-dimensional display unit to pass through without being deflected in an area where two-dimensional display is performed, and each pixel of the two-dimensional display unit in an area where three-dimensional display is performed. The passing state is changed so as to deflect the light beam from a plurality of viewing angle directions required for three-dimensional display,
The two-dimensional display unit displays an image based on the two-dimensional image data in an area for performing two-dimensional display, and performs an image display based on the three-dimensional image data in an area for performing three-dimensional display. Display device. In the optical device for three-dimensional display, a plurality of the divided areas are provided in a matrix shape in a plane facing the two-dimensional display unit, and the plurality of divided areas are driven by an active matrix method. The image display device according to claim 1, wherein a passage state of light rays from each pixel of the two-dimensional display unit is changed partially and selectively in units of the divided areas. In the three-dimensional display optical device, a switchable microlens in which a lens action is switched according to voltage application is formed in the divided area, and the switchable microlens is in an in-plane facing the two-dimensional display unit. Are formed in a matrix,
The plurality of switchable microlenses are voltage-driven by an active matrix method, so that the state of passage of light from each pixel of the two-dimensional display portion is partially and selectively in units of the switchable microlenses. The image display device according to claim 1, wherein the image display device is adapted to be changed to: Designating means for designating an area for performing three-dimensional display on the screen of the two-dimensional display unit in units of pixels;
Correction means for correcting the position and size of the area designated by the designation means to a position and size in units of the divided areas in the optical device for three-dimensional display,
The two-dimensional display unit performs video display based on the three-dimensional image data in an area corrected by the correction unit, and performs video display based on the two-dimensional image data in other areas.
The optical device for 3D display sets an area corresponding to the area corrected by the correcting means as an area for performing 3D display, and other areas are set as areas for performing 2D display. The image display device according to any one of claims 1 to 3. The designation means designates an area for performing the three-dimensional display in a pixel unit of the two-dimensional display unit in a state where video display based on the two-dimensional image data is performed on the screen of the two-dimensional display unit. The image display device according to claim 4, wherein

Images