JP2011128612A - Display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display device displaying an image in a 3-dimensional view mode and a multiple image display mode. <P>SOLUTION: The display device includes: a display panel with a plurality of pixels; a control circuit causing the display panel to display the image; and a micro lens array. The plurality of pixels are grouped into a plurality of unit pixel groups in which two pixels or more adjoining together in a first direction, and two pixels or more adjoining together in a second direction different from the first direction, are set to one unit. The micro lens array is arranged in an array form, by associating one micro lens with one unit pixel group. The control circuit displays the image in the 3-dimensional mode and the multiple image display mode. In the 3-dimensional mode, the control circuit performs control in such a way that the video information which is viewed in 3-dimensional mode when a view point is moved to the first direction, is supplied to each pixel in the unit pixel group. In the multiple image display mode, the control circuit performs control in such a way that image information in which a plurality of images with no correlation of 3-dimensional viewing are observed when the view point is moved to the second direction, is supplied to each pixel of the unit pixel group. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a display device capable of varying images that can be observed depending on the viewpoint of an observer.

  Among display devices, there is a display device that can change an image that can be observed depending on an observer's viewpoint.

  For example, in the image display device shown in FIG. 14 of Patent Document 1, the viewing angles of the pixels of the first and second pixel groups are set to θ1 and θ2, respectively, and θ1 <θ2. The image displayed in the first pixel group can be viewed only in a narrow range, and the image displayed in the second pixel group can be viewed in a wide range. In other words, the image displayed on the first pixel group is difficult for others to see, and the image displayed on the second pixel group can be viewed by surrounding people.

  In addition, the display device described in FIG. 8 of Patent Document 2 describes a display device in which different images can be observed from a plurality of viewpoints using a lenticular lens. In addition, the same first image is displayed at successive points a, b, and c, the same second image is displayed at successive points e, f, and g, and d between c and e is displayed. It is described that crosstalk is suppressed by hiding a point.

JP-A-8-136909 Japanese Patent Laid-Open No. 9-101749

  However, in Patent Document 1, the range that can be seen by the first pixel group overlaps the range that can be seen by the second pixel group. For this reason, in the wide viewing angle mode, when an image is displayed using both the first pixel group and the second pixel group, there is a problem that the luminance is remarkably different between the front view and the oblique view. Conversely, when an image is displayed using only the second pixel group in the wide viewing angle mode, there is a problem that the luminance is low due to the wide viewing angle θ2.

  In Patent Document 2, no consideration is given to viewing angle control and switching between the wide viewing angle mode and the narrow viewing angle mode.

  Further, neither Patent Document 1 nor Patent Document 2 considers switching between the multi-screen display mode and the stereoscopic mode or coexistence.

  Other problems other than those described above will be clarified from the entire description of the present specification or the drawings.

  In the present invention, a phenomenon in which an image that can be observed can be varied depending on the viewpoint of an observer using an optical member such as a microlens array or a lenticular lens.

  The configuration of the present invention can be as follows, for example.

(1) a display panel;
A control circuit for displaying an image on the display panel;
A display device comprising a microlens array,
The display panel has a plurality of pixels,
The plurality of pixels are grouped into a plurality of unit pixel groups each including three or more pixels adjacent in the first direction and two or more pixels adjacent in a second direction different from the first direction as a unit. Has been
The microlens array is arranged in an array corresponding to one unit pixel group per microlens,
The control circuit is capable of two types of display, a wide viewing angle mode and a narrow viewing angle mode. In the wide viewing angle mode, all the pixels adjacent in the first direction in the unit pixel group are used. In the narrow viewing angle mode, the control is performed so that the pixels at both ends in the first direction in the unit pixel group are displayed without being displayed.

  In (2) and (1), in the unit pixel group, the control circuit supplies the same video information to adjacent pixels in the first direction with respect to pixels to be displayed. It is the circuit which controls so that it is characterized.

In (3), (1), or (2), the unit pixel group is grouped by using three or more pixels adjacent in the second direction as one unit,
In the wide viewing angle mode, the control circuit performs display using all the pixels adjacent to the second direction in the unit pixel group, and in the narrow viewing angle mode, the control circuit includes the unit pixel group. It is a circuit that controls to display the pixels at both ends in the second direction as non-display.

(4) a display panel;
A control circuit for displaying an image on the display panel;
A display device comprising a lenticular lens,
The display panel has a plurality of pixels,
The plurality of pixels are grouped into a plurality of unit pixel groups each having three or more pixels adjacent in the first direction as a unit,
The lenticular lens includes one unit pixel group in the first direction and a plurality of unit pixels in the second direction, with respect to one cylindrical lens extending in a second direction different from the first direction. The cylindrical lenses are arranged in an array corresponding to the unit pixel group,
The control circuit is capable of two types of display, a wide viewing angle mode and a narrow viewing angle mode. In the wide viewing angle mode, all the pixels adjacent in the first direction in the unit pixel group are used. In the narrow viewing angle mode, the control is performed so that the pixels at both ends in the first direction in the unit pixel group are displayed without being displayed.

  In (5) and (4), in the unit pixel group, the control circuit supplies the same video information to adjacent pixels in the first direction with respect to pixels to be displayed. It is the circuit which controls so that it is characterized.

(6) a display panel;
A control circuit for displaying an image on the display panel;
A display device comprising a microlens array,
The display panel has a plurality of pixels,
The plurality of pixels are grouped into a plurality of unit pixel groups each having two or more pixels adjacent in a first direction and two or more pixels adjacent in a second direction different from the first direction as one unit. Has been
The microlens array is arranged in an array corresponding to one unit pixel group per microlens,
The control circuit is capable of two types of display, a stereoscopic mode and a multi-screen display mode. In the stereoscopic mode, the video information that allows stereoscopic viewing when the viewpoint is moved in the first direction is displayed. Supplying to each pixel of the unit pixel group, and in the multi-screen display mode, video information that enables observation of a plurality of images having no stereoscopic correlation when the viewpoint is moved in the second direction. The circuit is controlled to supply to each pixel of the pixel group.

  In (7) and (6), in the multi-screen display mode, the control circuit controls to supply the same video information to adjacent pixels in the first direction with respect to pixels to be displayed. It is characterized by being.

  In (8) and (6), the control circuit is a circuit that controls to supply each pixel with video information capable of simultaneously displaying two types of display, the stereoscopic mode and the multi-screen display mode. It is characterized by that.

  In (9) and (8), the control circuit supplies video information having a stereoscopic correlation to the pixels adjacent to each other in the first direction for each pixel of the unit pixel group. In addition, the control circuit is configured to control the supply of video information having no stereoscopic correlation to pixels adjacent in the second direction.

(10) a display panel;
A control circuit for displaying an image on the display panel;
A display device comprising a microlens array,
The display panel has a plurality of pixels,
The plurality of pixels are grouped into a plurality of unit pixel groups each including four or more pixels adjacent in the first direction and two or more pixels adjacent in a second direction different from the first direction as a unit. Has been
The microlens array is arranged in an array corresponding to one unit pixel group per microlens,
The control circuit is capable of two types of display, a stereoscopic mode and a multi-screen display mode. In the stereoscopic mode, the video information that allows stereoscopic viewing when the viewpoint is moved in the first direction is displayed. Video information that can be supplied to each pixel of the unit pixel group, and in the multi-screen display mode, a plurality of images having no stereoscopic correlation can be observed when the viewpoint is moved in the first direction; and A display device comprising: a circuit for controlling video information such that two or more pixels continuous in the first direction become the same video information to each pixel of the unit pixel group. .

(11) a display panel;
A control circuit for displaying an image on the display panel;
A display device comprising a lenticular lens,
The display panel has a plurality of pixels,
The plurality of pixels are grouped into a plurality of unit pixel groups each including four or more pixels adjacent in the first direction as a unit,
The lenticular lens includes one unit pixel group in the first direction and a plurality of unit pixels in the second direction, with respect to one cylindrical lens extending in a second direction different from the first direction. The cylindrical lenses are arranged in an array corresponding to the unit pixel group,
The control circuit is capable of two types of display, a stereoscopic mode and a multi-screen display mode. In the stereoscopic mode, the video information that allows stereoscopic viewing when the viewpoint is moved in the first direction is displayed. Video information that can be supplied to each pixel of the unit pixel group, and in the multi-screen display mode, a plurality of images having no stereoscopic correlation can be observed when the viewpoint is moved in the first direction; and A display device comprising: a circuit for controlling video information such that two or more pixels continuous in the first direction become the same video information to each pixel of the unit pixel group. .

  The above-described configuration is merely an example, and the present invention can be modified as appropriate without departing from the technical idea. Further, examples of the configuration of the present invention other than those described above will be clarified from the entire description of the present specification or the drawings.

  An advantage of the present invention is that it is possible to provide a display device capable of two types of display, a good wide viewing angle mode and a narrow viewing angle mode.

  Alternatively, it is possible to provide a display device capable of two types of display, a stereoscopic mode and a multi-screen display mode, without using the panel having the same configuration and rotating the panel.

It is a top view explaining an example of composition of a pixel and a lens in the present invention. It is a top view explaining other examples of composition of a pixel and a lens in the present invention. It is a top view explaining an example of composition of a unit pixel group and a pixel in the present invention. It is a top view explaining an example of the structure of the pixel in this invention. It is sectional drawing in the I-I 'line | wire of FIG. 1, and is a figure explaining the display principle of the display apparatus by this invention. It is explanatory drawing which simplified the result of the display demonstrated in FIG. 7 is an example of a pixel driving method for causing the display of FIG. 6 to be performed. It is explanatory drawing explaining the display in the wide viewing angle mode in this invention. FIG. 9 is an example of a pixel driving method for performing the display of FIG. 8. FIG. It is explanatory drawing explaining the display in the narrow viewing angle mode in this invention. It is an example of the driving method of the pixel for performing the display of FIG. 12 is another example of a pixel driving method for performing the display of FIG. 10. 14 is still another example of a pixel driving method for performing the display of FIG. It is an example of the driving method of the pixel in this invention. It is an example of the driving method of the pixel in this invention. It is a perspective view for demonstrating a lenticular lens. It is explanatory drawing explaining an example of the display of the multiple screen display mode in this invention. It is an example of the drive method of the pixel for performing the display of FIG.

  Embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a plan view for explaining an example of the configuration of a pixel and a lens in the present invention. FIG. 2 is a plan view for explaining another example of the configuration of the pixel and the lens in the present invention. FIG. 3 is a plan view for explaining an example of the configuration of a unit pixel group and pixels in the present invention. FIG. 4 is a plan view illustrating an example of the configuration of the pixel in the present invention. FIG. 5 is a cross-sectional view taken along the line I-I ′ of FIG. 1 and is a diagram for explaining the display principle of the display device according to the present invention.

  1 and 5, the display device according to the present invention includes a display panel 103, a control circuit (not shown) for displaying an image on the display panel 103, and a microlens in which microlenses 100 are arranged in an array. And an array. The microlens 100 is disposed on the front side (observer side) of the display panel 103.

  As the control circuit, for example, a control circuit having at least one of a drive circuit, a timing controller, an image processing circuit, a memory, and a CPU can be used.

  FIG. 5 shows an example in which a liquid crystal display device is used as the display panel 103, which includes a liquid crystal display panel 101 and a light source 102 such as a backlight disposed on the back side of the liquid crystal display panel 101. However, the display panel 103 is not limited to such a configuration, and other types of display panels such as an organic EL display device may be used.

  The display panel 103 includes a plurality of pixels 11 to 14, 21 to 24, 31 to 34, and 41 to 44 as shown in FIG. These pixels are grouped as a unit of 4 × 4 pixels composed of four pixels adjacent in the horizontal direction and four pixels adjacent in the vertical direction. ing. As shown in FIG. 1, a plurality of unit pixel groups 10 are two-dimensionally arranged in the vertical direction and the horizontal direction.

  The microlens array is arranged in an array corresponding to one unit pixel group 10 for each microlens 100. Therefore, in the present embodiment, one microlens 100 corresponds to 4 vertical pixels × 4 horizontal pixels 11 to 14, 21 to 24, 31 to 34, 41 to 44.

  Note that the arrangement method of the unit pixel group 10 and the microlens 100 may be, for example, a delta arrangement in which every other row is shifted by a half pitch in the horizontal direction as shown in FIG. Although not shown, the present invention may be applied to a delta arrangement in which every other column is shifted by a half pitch in the vertical direction, or other arrangement methods.

  As shown in FIG. 4, each pixel has one type of pixel (a pixel 11 as a representative in FIG. 4): a sub-pixel PXR that displays red, a sub-pixel PXG that displays green, and a sub-pixel PXB that displays blue. (Shown). However, the present invention is not limited to this, and a combination of cyan, magenta, and yellow may be used instead of the combination of red, green, and blue. Further, sub-pixels are not necessary if monochrome display is acceptable. Alternatively, if a field sequential method is used, color display is possible without using subpixels.

  Next, the display principle of the display device will be described with reference to FIG.

  When observed from the viewpoint 51, only the pixel 14 of each unit pixel group 10 can be seen by the action of the microlens 100. Since the unit pixel groups 10 are arranged in an array, an aggregate in which only the pixels 14 are arranged in an array is observed from the viewpoint 51. Therefore, for example, the control circuit or the like controls each pixel 14 to supply the video information d for displaying the image D by the aggregate of the pixels 14, so that the image D is displayed as the screen display 61 from the viewpoint 51. Can be observed.

  Similarly, by supplying the video information a, b, and c to the pixels 11, 12, and 13, respectively, only the pixels 13, 12, and 11 can be seen from the viewpoints 52, 53, and 54, respectively. Images C, B, and A can be observed as screen displays 62, 63, and 64.

  Therefore, according to the display device of the present invention, it is possible to vary the images that can be observed as the viewpoint is moved in the horizontal direction.

  In the above description, only the horizontal direction is described. However, since the principle is almost the same in the vertical direction, it is possible to change the images that can be observed as the viewpoint is moved in the vertical direction.

  The maximum number of viewpoints is equal to the number of pixels in one unit pixel group 10. Therefore, in the case of the present embodiment, 16 different images can be observed from a maximum of 16 viewpoints.

  FIG. 6 is an explanatory diagram in which the result of the display described in FIG. 5 is simplified. FIG. 7 shows an example of a pixel driving method for performing the display of FIG.

  As shown in FIG. 7, in the unit pixel group 10, the pixels 11, 21, 31, and 41 in the leftmost column have the video information a and the pixels 12, 22, 32, and 42 in the second column from the left. Includes the video information b, the video information c for the pixels 13, 23, 33, 43 in the third column from the left, and the video information c for the pixels 14, 24, 34, 44 in the fourth column from the left. Information d was supplied respectively. Such driving can be controlled by a control circuit (not shown). As a result, different images D, C, B, and A can be observed in the visual field ranges 71, 72, 73, and 74 as shown in FIG. In addition, when the images D, C, B, and A are images that have a stereoscopic correlation, stereoscopic viewing is also possible.

  In FIG. 7, since the same video information is supplied to pixels adjacent in the vertical direction in the unit pixel group 10, the observable image does not change when the viewpoint is moved in the vertical direction.

  Next, the viewing angle control method will be described.

  FIG. 8 is an explanatory diagram for explaining display in the wide viewing angle mode in the present invention. FIG. 9 shows an example of a pixel driving method for performing the display of FIG.

  In FIG. 9, video information a is supplied to all the pixels in the unit pixel group 10 for display. Therefore, the image A can be observed in all the visual field ranges 71, 72, 73, and 74 as shown in FIG. That is, display in the wide viewing angle mode is performed. In addition, by supplying the same video information a to pixels adjacent in the vertical direction and / or horizontal direction in one unit pixel group 10, the same image can be displayed even if the viewpoint is moved in the vertical direction and / or horizontal direction. Since it can be observed, it is desirable because the viewing angle becomes wide.

  FIG. 10 is an explanatory diagram for explaining display in the narrow viewing angle mode according to the present invention. FIG. 11 shows an example of a pixel driving method for performing the display of FIG.

  In FIG. 10, video information x is supplied to the pixels 11, 14, 21, 24, 31, 34, 41, 44 at both ends in the horizontal direction in the unit pixel group 10 so as not to be displayed, and the vicinity of the center The video information a is supplied to the pixels 12, 13, 22, 23, 32, 33, 42, and 43 of these. Therefore, as shown in FIG. 10, the image A can be observed in the visual field ranges 72 and 73, but is not displayed in the visual field ranges 71 and 74. That is, display in the narrow viewing angle mode is performed in the horizontal direction. In order to hide the display, black display may be performed or a predetermined background color may be displayed.

  FIG. 12 shows another example of a pixel driving method for performing the display of FIG.

  12 differs from FIG. 11 in that the pixels 12, 13, 42, and 43 at both ends in the vertical direction are also not displayed by supplying video information x. As described above, the peripheral pixels in the unit pixel group 10 are not displayed, and only the pixels near the center are displayed, thereby displaying the narrow viewing angle mode in both the vertical direction and the horizontal direction. Is called.

  FIG. 13 shows still another example of a pixel driving method for causing the display of FIG.

  In FIG. 13, the display in the narrow viewing angle mode is performed in the horizontal direction, and the display capable of observing a plurality of images according to the viewpoint is performed in the vertical direction.

  In the above embodiments, the case where the unit pixel group 10 is composed of 4 × 4 pixels has been described as an example. However, the present invention is not limited to this. If the unit pixel group 10 has three or more pixels in the direction in which the viewing angle is desired to be controlled, both ends can be hidden in the narrow viewing angle mode. Moreover, when it has 5 pixels or more, it is not restricted to what hides 1 pixel from both ends, You may hide at least 2 pixels from both ends. For the direction in which the viewing angle is not controlled, one pixel or more is sufficient. However, in the case of only one pixel, it is better to use a lenticular lens instead of using a microlens array. In the case of the method using the lens 100, it is desirable that the number of pixels is two or more.

  In other words, the plurality of pixels of the display panel 103 are three or more pixels adjacent in the first direction (for example, the horizontal direction) and two pixels adjacent in the second direction (for example, the vertical direction) different from the first direction. When grouped into a plurality of unit pixel groups 10 having the above as one unit, for example, in the wide viewing angle mode, all pixels adjacent in the first direction in the unit pixel group 10 are controlled by a control circuit or the like. In the narrow viewing angle mode, driving may be performed by controlling the pixels at both ends in the first direction in the unit pixel group 10 so that display is not performed.

  By doing so, even in the wide viewing angle mode, the difference in luminance between when viewed from the front and when viewed from an oblique direction is reduced. In addition, since the visual field range assigned to one pixel is narrow, light can be used efficiently and a bright display can be achieved.

  In one unit pixel group 10, it is possible to control the pixels to be displayed to supply the same video information to those adjacent in the first direction and / or the second direction. It is desirable from the viewpoint of widening the viewing angle.

  Further, three or more pixels may be grouped in the second direction, and the viewing angle control may be performed in the second direction.

  FIG. 16 is a perspective view for explaining a lenticular lens.

  The lenticular lens 100 ′ is an optical member in which a plurality of cylindrical lenses extending in one direction are arrayed in the other direction.

  In Example 2, the lenticular lens 100 ′ was used instead of the microlens array in Example 1.

  For example, when the cylindrical lens extends in the vertical direction, there is no lens effect in the vertical direction, but there is a lens effect in the horizontal direction. Therefore, for example, the unit pixel group 10 includes pixels 11, 12, 13, and 14 (3 pixels or more) in the horizontal direction, and the vertical direction may not be grouped.

  Except for the fact that the viewing angle can be controlled only in the direction having the lens effect, the rest is almost the same as in the first embodiment.

  For example, when a plurality of pixels of the display panel 103 are grouped into a plurality of unit pixel groups 10 each having three or more pixels adjacent in the first direction (for example, the horizontal direction) as one unit, the lenticular lens 100 ′ For one cylindrical lens extending in a second direction (for example, the vertical direction) different from the first direction, one unit pixel group 10 in the first direction and a plurality of unit pixel groups in the second direction Corresponding to 10, cylindrical lenses are arranged in an array.

  Then, for example, in the wide viewing angle mode, display is performed using all the pixels adjacent in the first direction in the unit pixel group 10 in the wide viewing angle mode, and in the unit pixel group 10 in the narrow viewing angle mode. What is necessary is just to control and drive so that the pixels at both ends in the first direction are not displayed.

  In one unit pixel group 10, it is possible to control the pixels to be displayed so that the same video information is supplied to adjacent pixels in the first direction from the viewpoint of widening the viewing angle. desirable.

  Next, a display device capable of two types of display, a stereoscopic mode and a multi-screen display mode, will be described.

  The basic configuration is the same as the configuration using the microlens array described in the first embodiment, and the difference is the control method or drive method.

  14 and 15 show an example of a pixel driving method according to the present invention.

  In FIG. 14, each of the pixels 11, 12, 13, 14, 21, 22, 23, 24, 31, 32, 33, 34, 41, 42, 43, 44 of the unit pixel group 10 is different. Video information a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, and p are supplied. Thereby, 16 different images can be observed from 16 viewpoints.

  First, the case of the stereoscopic mode will be described.

  If each image is an image having a stereoscopic correlation, stereoscopic viewing is possible. For example, if there is a stereoscopic correlation between the video information a, b, c, and d, when the viewpoint is moved in the horizontal direction, the angle of the object that is visible as the viewpoint moves is changed. Since it is possible to observe a changing image, it is possible to perform a stereoscopic view as if observing a certain object. Further, in a viewpoint in which an image observed with the left eye and an image observed with the right eye are different, for example, when one eye is in the visual field range 72 and the other eye is in the visual field range 73 By displaying the images B and C in consideration of the parallax information of the left and right eyes, stereoscopic viewing using binocular parallax can be performed.

  Also, for example, if a stereoscopic correlation is provided between the video information a, e, i, and m, when the viewpoint is moved in the vertical direction, the object that is visible along with the movement of the viewpoint is displayed. Since it is possible to observe an image whose angle changes, it is possible to perform stereoscopic viewing as if an object is being observed.

  Then, while the display device itself has the same configuration, the display mode can be changed to the multi-screen display mode only by changing the video information to be displayed to one having no stereoscopic correlation. In the case of FIG. 14, up to 16 different images can be displayed depending on the viewpoint.

  In the multi-screen display mode, it is desirable to display the same image between adjacent ones in the horizontal direction as shown in FIG. This is to make it easier to see the images by preventing the left and right eyes from seeing separate images. In particular, when stereoscopic vision is assumed, it is normal to design a narrow field of view range for a single pixel, so that separate images are easily observed in the left and right eyes, as shown in FIG. High effect. When the viewpoint is moved in the vertical direction, different images having no stereoscopic correlation can be recognized.

  As a comparative example, using a lenticular lens, one unit pixel group 10 is composed of only the pixels 11 and 12, that is, using only two images for the right eye and the left eye, Compare with the case of stereoscopic viewing. In the case of this comparative example, if the multi-screen display mode is set with the same panel configuration, it is necessary to rotate the panel by 90 ° and display different images when the viewpoint is moved in the vertical direction. . This is because originally designed for stereoscopic viewing, separate images are visible to the right and left eyes unless the panel is rotated by 90 °.

  On the other hand, according to the configuration of the present application, since the microlens array is used, it is possible to switch to the multi-screen display mode without rotating the panel with the same panel configuration as in the stereoscopic mode. Become.

  In the present invention, one unit pixel group 10 is applicable as long as it has two or more pixels in the horizontal direction and two or more pixels in the vertical direction.

  For example, in the stereoscopic mode, video information that can be viewed stereoscopically when the viewpoint is moved in a first direction (for example, the horizontal direction) is supplied to each pixel of the unit pixel group 10 to display multiple screens. In the mode, control is performed so that video information capable of observing a plurality of images having no stereoscopic correlation when the viewpoint is moved in the second direction (for example, the vertical direction) is supplied to each pixel of the unit pixel group 10. And drive it.

  Here, in the multi-screen display mode, it is desirable to perform control so that the same video information is supplied to pixels adjacent to each other in the first direction with respect to the display pixels.

  In the present invention, it is also possible to simultaneously display two types of display, the stereoscopic mode and the multi-screen display mode.

  For example, for each pixel of the unit pixel group, video information having a stereoscopic correlation is supplied to the pixels adjacent in the first direction, and the pixels adjacent in the second direction are stereoscopic. It is only necessary to supply video information having no visual correlation.

  For example, referring to FIG. 14, a set of video information a, b, c, and d has a stereoscopic correlation with each other. In addition, a set of video information e, f, g, and h has a stereoscopic correlation with each other. In addition, a set of video information i, j, k, and l has a stereoscopic correlation with each other. In addition, a set of video information m, n, o, and p has a stereoscopic correlation with each other. In contrast, the video information a, e, i, m is not correlated with a stereoscopic vision. In this way, two types of display, the stereoscopic mode and the multi-screen display mode, can be displayed simultaneously.

  Next, another example of a display device capable of two types of display, a stereoscopic mode and a multi-screen display mode, will be described.

  The basic configuration is the same as the configuration using the microlens array described in the first and third embodiments, and the difference is the control method or drive method.

  FIG. 17 is an explanatory diagram for explaining an example of display in the multi-screen display mode in the present invention. FIG. 18 shows an example of a pixel driving method for performing the display of FIG.

  In FIG. 18, video information a is supplied to the left half of the unit pixel group 10, and video information b is supplied to the right half of the pixel group 10. Accordingly, as shown in FIG. 17, the image B is observed in the visual field ranges 71 and 72, and the image A is observed in the visual field ranges 73 and 74.

  In the present invention, when performing multi-screen display in the same direction as the viewpoint moving direction in which stereoscopic viewing is possible using the same panel configuration as the panel that performs stereoscopic viewing, two or more adjacent visual field ranges are displayed. By displaying the same image, the visual field range can be substantially enlarged, and the quality of the multi-screen display can be improved.

  When the number of viewpoints is increased by increasing the number of pixels in one unit pixel group 10 or when stereoscopic vision is assumed, it is usual to design a narrow field of view range for one pixel. Separate images are likely to be observed on the left and right eyes. On the other hand, according to the present invention, this problem can be reduced and display quality can be improved.

  In the present invention, for example, in the stereoscopic mode, video information that can be viewed stereoscopically when the viewpoint is moved in a first direction (for example, the horizontal direction) is supplied to each pixel of the unit pixel group 10, In the screen display mode, when the viewpoint is moved in the first direction, the video information is capable of observing a plurality of images having no stereoscopic correlation, and two or more continuous pixels in the first direction are the same as the video information. Such video information may be controlled and driven so as to be supplied to each pixel of the unit pixel group.

  In the present invention, the number of pixels in one unit pixel group 10 may be four or more in the first direction. This is because when displaying a plurality of images, two or more pixels to which the same video information is supplied are allocated in the first direction in order to display one image.

  In Example 5, the lenticular lens 100 ′ was used instead of the microlens array in Example 4.

  The basic configuration is the same as that of the second embodiment which is an embodiment using the lenticular lens 100 '.

  The number of pixels in one unit pixel group 10 may be four or more in the first direction as in the fourth embodiment.

  The driving method may be the same as that in the fourth embodiment.

  Next, an application example of the multi-screen display mode will be described.

  The multi-screen display mode can be applied to, for example, an in-vehicle, a mobile phone, a PC monitor, a game, an amusement display, and the like.

  In an in-vehicle application, it is possible to immediately switch and view different screens such as a planar map and a bird view, an enlarged display and a reduced display, a navigation display and a traffic information display, etc. by changing the viewpoint. In addition, the driver and the passenger seat can view different images and perform 3D navigation display.

  For mobile phones, the screen size is small, so even if the resolution is increased, it is too fine to be seen, so the font size is increased. For this reason, although the amount of information that can be seen at a time is small, it is possible to see more than twice as much information by using the simultaneous display of a plurality of screens.

  In the PC monitor application, two monitors are used and not a dual display but a dual display is possible with one monitor.

  In game applications, a battle game is usually performed by dividing one screen into two, so the screen size is halved. However, if the present invention is used, the screen size can be displayed as it is.

  In amusement applications, data screens can be viewed simultaneously in addition to the normal display screen.

  In addition, this invention is not limited to Example 1-6 described so far, In the range which does not deviate from a technical thought, it can change suitably. Furthermore, the first to sixth embodiments can be used alone or in combination with each other as long as no contradiction arises. For example, viewing angle control, stereoscopic viewing mode, and multi-screen display mode may be combined.

10 ... Unit pixel group, 11, 12, 13, 14, 21, 22, 23, 24, 31, 32, 33, 34, 41, 42, 43, 44 ... Pixel, 51, 52, 53, 54 ... View point, 61, 62, 63, 64 ... Screen display, 71, 72, 73, 74 ... Field of view, 100 ... Micro lens, 100 '... Lenticular lens, 101 .. Liquid crystal display panel, 102... Light source, 103... Display panel, a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, x: Video information, A, B, C, D: Image, PXR, PXG, PXB: Subpixels.

Claims (6)

A display panel;
A control circuit for displaying an image on the display panel;
A display device comprising a microlens array,
The display panel has a plurality of pixels,
The plurality of pixels are grouped into a plurality of unit pixel groups each having two or more pixels adjacent in a first direction and two or more pixels adjacent in a second direction different from the first direction as one unit. Has been
The microlens array is arranged in an array corresponding to one unit pixel group per microlens,
The control circuit is capable of two types of display, a stereoscopic mode and a multi-screen display mode. In the stereoscopic mode, the video information that allows stereoscopic viewing when the viewpoint is moved in the first direction is displayed. Supplying to each pixel of the unit pixel group, and in the multi-screen display mode, video information that enables observation of a plurality of images having no stereoscopic correlation when the viewpoint is moved in the second direction. A display device which is a circuit which controls to supply to each pixel of a pixel group.   The control circuit is a circuit which controls to supply the same video information to pixels adjacent in the first direction with respect to pixels to be displayed in the multi-screen display mode. The display device according to 1.   2. The circuit according to claim 1, wherein the control circuit is a circuit that controls to supply each pixel with video information capable of simultaneously displaying two types of display of the stereoscopic mode and the multi-screen display mode. The display device described.   The control circuit supplies video information having a stereoscopic correlation to pixels adjacent in the first direction and adjacent to the second direction for each pixel of the unit pixel group. The display device according to claim 3, wherein the display device is a circuit that controls to supply video information having no stereoscopic correlation to the pixels to be operated. A display panel;
A control circuit for displaying an image on the display panel;
A display device comprising a microlens array,
The display panel has a plurality of pixels,
The plurality of pixels are grouped into a plurality of unit pixel groups each including four or more pixels adjacent in the first direction and two or more pixels adjacent in a second direction different from the first direction as a unit. Has been
The microlens array is arranged in an array corresponding to one unit pixel group per microlens,
The control circuit is capable of two types of display, a stereoscopic mode and a multi-screen display mode. In the stereoscopic mode, the video information that allows stereoscopic viewing when the viewpoint is moved in the first direction is displayed. Video information that can be supplied to each pixel of the unit pixel group, and in the multi-screen display mode, a plurality of images having no stereoscopic correlation can be observed when the viewpoint is moved in the first direction; and A display device that controls to supply video information such that two or more pixels continuous in the first direction become the same video information to each pixel of the unit pixel group . A display panel;
A control circuit for displaying an image on the display panel;
A display device comprising a lenticular lens,
The display panel has a plurality of pixels,
The plurality of pixels are grouped into a plurality of unit pixel groups each including four or more pixels adjacent in the first direction as a unit,
The lenticular lens includes one unit pixel group in the first direction and a plurality of unit pixels in the second direction, with respect to one cylindrical lens extending in a second direction different from the first direction. The cylindrical lenses are arranged in an array corresponding to the unit pixel group,
The control circuit is capable of two types of display, a stereoscopic mode and a multi-screen display mode. In the stereoscopic mode, the video information that allows stereoscopic viewing when the viewpoint is moved in the first direction is displayed. Video information that can be supplied to each pixel of the unit pixel group, and in the multi-screen display mode, a plurality of images having no stereoscopic correlation can be observed when the viewpoint is moved in the first direction; and A display device comprising: a circuit for controlling video information such that two or more pixels continuous in the first direction become the same video information to each pixel of the unit pixel group. .

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