JP2014228852A - Display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display device capable of suitably reducing crosstalk even when an observer changes an observation position.SOLUTION: A display device comprises: a display section where a plurality of pixels are two-dimensionally arrayed, and which displays an image; a parallax adjustment section for adjusting an image visible to an observer; a position detection section for detecting an observer's position; and a control section for displaying, on the display section, a first image at a first viewpoint and a second image at a second viewpoint which can be visually recognised by the observer as images, on the basis of the detection result of the position detection section. The control section causes, on the basis of the detection result of the position detection section, pixels within a set distance from the field of the first viewpoint to display the first image, causes pixels within a set distance from the field of the second viewpoint to display the second image, and reduces transmittance of pixels distant from the set distances from the field of the first viewpoint and the field of the second viewpoint.

Description

  The present invention relates to a display device.

  In recent years, as a display device that displays an image, there is a so-called three-dimensional image display device that displays an image that can be viewed stereoscopically (three-dimensionally) by a user (viewer). In the three-dimensional image display device, for example, a barrier unit is disposed on the display surface side of a display unit that displays an image. The barrier unit adjusts so that part of the image displayed on the display unit is incident on the right eye of the user and part of the image is incident on the left eye of the user.

  In the three-dimensional image display device, since the appearance of the three-dimensional image changes depending on the position of the observer, it has been proposed to control the display according to the position of the observer. For example, Patent Document 1 includes a display unit that includes a plurality of first to n-th (n is an integer of 4 or more) pixels, and displays a plurality of viewpoint images assigned to each of the first to n-th pixels. A detector for detecting the viewpoint position of the observer, the number of viewpoint images to be assigned to the first to n-th pixels, and the first to n-th pixels and the viewpoint images according to the viewpoint position of the observer A three-dimensional image display device is provided that includes a display control unit that changes the correspondence relationship between the two and the display control unit.

  The display device causes the user to visually recognize the image three-dimensionally by causing separate images to reach the left and right eyes of the user by controlling the image displayed on the display unit and controlling the barrier unit. Similar to the three-dimensional image display device, there is also a two-screen display device that displays different images in the left and right directions at the barrier unit.

JP 2012-203230 A

  By controlling the image to be displayed according to the position of the observer as described in Patent Document 1, it is possible to display an image that looks three-dimensional to the observer. However, as described in Patent Document 1, there is a case where crosstalk occurs in which a part of the image for the left eye can be seen by the right eye depending on the observation position even if the image is controlled.

  The present technology has been made in view of such problems, and an object of the present technology is to provide a display device capable of suitably reducing crosstalk even when the position observed by an observer is changed. .

  A display device according to the present disclosure includes a display unit in which a plurality of pixels are two-dimensionally arranged to display an image, a parallax adjustment unit that adjusts the image seen by the observer, and a position detection unit that detects the position of the observer And, based on the detection result of the position detection unit, the display unit displays, as the image, a first image that can be viewed by the observer from a first viewpoint and a second image that can be viewed by a second viewpoint. And the control unit displays the first image on pixels within a set distance from the field of view of the first viewpoint based on the detection result of the position detection unit, and the second viewpoint The second image is displayed on a pixel within a set distance from the field of view, and the transmittance of pixels farther than the set distance from the field of view of the first viewpoint and the field of view of the second viewpoint is reduced.

  Further, it is preferable that the control unit displays black on a pixel farther than a set distance from the visual field of the first viewpoint and the visual field of the second viewpoint.

  The set distance is preferably a distance at which light incident on the visual field is 20% or less of light incident from an adjacent pixel.

  The parallax adjusting unit includes a plurality of unit regions extending in a second direction perpendicular to the first direction arranged in a row in the first direction, and transmits and blocks light in the unit regions. It is preferable that the unit area for switching and transmitting light is at least one of the visual field of the first viewpoint and the visual field of the second viewpoint.

  Moreover, it is preferable that the said parallax adjustment part is laminated | stacked on the display surface side of the said display part.

  In addition, the display unit is an organic EL display in which an organic EL is arranged corresponding to the pixel, and the control unit is farther than a set distance from the visual field of the first viewpoint and the visual field of the second viewpoint. It is preferable to turn off the pixel.

  The display device of the present disclosure can suitably reduce crosstalk even when the position observed by the observer is changed.

FIG. 1 is a block diagram illustrating an example of a functional configuration of the display device according to the embodiment. FIG. 2 is a perspective view illustrating an example of the configuration of the backlight, the display unit, and the barrier unit of the display device illustrated in FIG. 1. FIG. 3 is a perspective view showing the relationship between the pixels of the display unit and the unit areas of the barrier unit. FIG. 4 is a schematic diagram illustrating a schematic configuration of a module in which the display unit and the barrier unit are mounted. FIG. 5 is a partial cross-sectional view illustrating a schematic structure of a module on which the display unit and the barrier unit are mounted. FIG. 6 is a circuit diagram illustrating pixel display of the display unit. FIG. 7 is a schematic diagram of pixels in color display. FIG. 8 is a schematic diagram of pixels in monochrome display. FIG. 9 is a schematic diagram showing the relationship between the display device, the viewpoint, and the field of view. FIG. 10A is a schematic diagram illustrating a relationship between a pixel and a field of view of the display unit. FIG. 10B is a schematic diagram illustrating the relationship between the luminance of each pixel and the visual field. FIG. 11A is a schematic diagram illustrating a relationship between a pixel of the display unit and a visual field. FIG. 11B is a schematic diagram illustrating the relationship between the luminance of each pixel and the field of view. FIG. 12A is a schematic diagram illustrating a relationship between a pixel of the display unit and a visual field. FIG. 12B is a schematic diagram illustrating the relationship between the luminance of each pixel and the visual field. FIG. 13 is a flowchart illustrating a flow of control by the display device according to the embodiment. FIG. 14 is a schematic diagram showing the relationship between the pixels of the display unit and the field of view. FIG. 15 is a schematic diagram illustrating the relationship between the pixels of the display unit and the visual field. FIG. 16 is a schematic diagram illustrating a schematic configuration of a display device according to another embodiment. FIG. 17 is a schematic diagram illustrating a schematic configuration of a display device according to another embodiment. FIG. 18 is a schematic diagram illustrating a schematic configuration of a display device according to another embodiment. FIG. 19 is a diagram illustrating an example of an electronic apparatus including the display device according to this embodiment. FIG. 20 is a diagram illustrating an example of an electronic apparatus including the display device according to this embodiment. FIG. 21 is a diagram illustrating an example of an electronic apparatus including the display device according to this embodiment. FIG. 22 is a diagram illustrating an example of an electronic apparatus including the display device according to this embodiment. FIG. 23 is a diagram illustrating an example of an electronic apparatus including the display device according to this embodiment. FIG. 24 is a diagram illustrating an example of an electronic apparatus including the display device according to this embodiment. FIG. 25 is a diagram illustrating an example of an electronic apparatus including the display device according to this embodiment. FIG. 26 is a diagram illustrating an example of an electronic apparatus including the display device according to this embodiment. FIG. 27 is a diagram illustrating an example of an electronic apparatus including the display device according to this embodiment.

A form (embodiment) for carrying out the display device of the present disclosure will be described in detail with reference to the drawings. The present disclosure is not limited by the contents described in the following embodiments. The constituent elements described below include those that can be easily assumed by those skilled in the art and those that are substantially the same. Furthermore, the constituent elements described below can be appropriately combined. The description will be given in the following order.
1. Embodiment (display device)
2. Application example (electronic equipment)
Example in which the display device according to the embodiment is applied to an electronic device

[1. Embodiment (Display Device)]
The display device according to the embodiment described below can be applied to, for example, a display device that displays a three-dimensional image by controlling a barrier unit stacked on the display unit. Examples of the display unit of the display device include a liquid crystal display (LCD), a micro electro mechanical system (MEMS), an organic electro-luminescence (EL) display device, and a plasma display device.

  The display device according to each embodiment can be applied to both a display device compatible with monochrome display and a display device compatible with color display. Here, in the case of a display device compatible with color display, one pixel (unit pixel) serving as a unit for forming a color image is composed of a plurality of sub-pixels (sub-pixels). More specifically, in a display device that supports color display, one pixel includes, for example, a subpixel that displays red (Red; R), a subpixel that displays green (Green; G), and a blue (Blue; B). ) Is composed of three sub-pixels.

  One pixel is not limited to a combination of RGB sub-pixels of the three primary colors, and one pixel can be configured by adding one or more sub-pixels to the RGB three primary color sub-pixels. . More specifically, for example, at least one of the sub-pixels that display white (W) for luminance enhancement is added to form one pixel, or the complementary color is displayed to expand the color reproduction range. It is also possible to configure one pixel by adding subpixels.

(Constitution)
FIG. 1 is a block diagram illustrating an example of a functional configuration of the display device according to the embodiment. FIG. 2 is a perspective view illustrating an example of the configuration of the backlight, the display unit, and the barrier unit of the display device illustrated in FIG. 1. FIG. 3 is a perspective view showing the relationship between the pixels of the display unit and the unit areas of the barrier unit. 2 and 3 are schematic representations and are not necessarily the same as actual dimensions and shapes. The display device 1 illustrated in FIG. 1 is an example of the display device of the present disclosure, for example.

  For example, the display device 1 displays an image that allows a user looking at the screen from a predetermined position to recognize a three-dimensional image with the naked eye. As shown in FIG. 1, the display device 1 includes a backlight 2, a display unit 4, a barrier unit 6, an imaging unit 8, and a control unit 9. In the display device 1, a backlight 2, a display unit 4, and a barrier unit 6 are stacked in this order, for example.

  The backlight 2 is a planar illumination device that emits planar light toward the display unit 4. The backlight 2 includes, for example, a light source and a light guide plate, and outputs the light emitted from the light source from the emission surface facing the display unit 4 while being scattered by the light guide plate. In addition, when an organic EL display is used as the display unit 4, the display unit 4 itself emits light, and thus the backlight 2 may not be provided.

  The display unit 4 is a display device that displays an image. The display unit 4 is a liquid crystal panel in which a large number of pixels are arranged in a two-dimensional array as shown in FIG. The light emitted from the backlight 2 is incident on the display unit 4. The display unit 4 displays an image on a display surface (for example, 4S in FIG. 2) by switching between transmitting and blocking light incident on each pixel 50, for example.

  The barrier unit 6 is an optical device. The barrier unit 6 is disposed on a display surface (for example, 4S in FIG. 2) on which the image of the display unit 4 is displayed, that is, a surface opposite to the surface facing the backlight 2. The barrier unit 6 has a second direction (for example, the X-axis direction shown in FIGS. 2 and 3) perpendicular to the first direction (for example, 4S in FIG. 2) of the display unit 4 (eg, 4S in FIG. 2). For example, a plurality of unit regions 150 extending in the Y-axis direction shown in FIGS. 2 and 3 are arranged in a row. The barrier unit 6 is a liquid crystal panel, and by applying a voltage partially to a target transmission region or light shielding region to align the liquid crystal, the light incident on each unit region 150 is emitted from the side. This is switched between transmitting and blocking from the surface (for example, 6S in FIG. 2). Thereby, the barrier unit 6 adjusts the region through which the image displayed on the display unit 4 is transmitted and the region to be blocked. A liquid crystal lens or the like may be applied to the display device 1 instead of the barrier unit 6. In the configuration shown in FIG. 2, the barrier unit 6 is disposed on the display surface on which the image of the display unit 4 is displayed, that is, the surface opposite to the surface facing the backlight 2. 6 may be provided between the backlight 2 and the display unit 4. The image of the display unit 4 is displayed by switching whether the light incident from the backlight 2 to each unit region 150 of the barrier unit 6 is transmitted or blocked from the light emitting surface of the barrier unit 6. Adjust the area to be displayed and the area not to be displayed.

(Display unit 4 and barrier unit 6)
Next, configuration examples of the display unit 4 and the barrier unit 6 will be described. FIG. 4 is a schematic diagram illustrating a schematic configuration of a module in which the display unit and the barrier unit are mounted. FIG. 5 is a partial cross-sectional view illustrating a schematic structure of a module on which the display unit and the barrier unit are mounted. FIG. 6 is a circuit diagram illustrating pixel display of the display unit. FIG. 7 is a schematic diagram of pixels in color display. FIG. 8 is a schematic diagram of pixels in monochrome display.

  As shown in FIG. 4, the display device 1 has the display unit 4 and the barrier unit 6 laminated as described above. In the display device 1, the display unit 4 and the barrier unit 6 are bonded by an adhesive layer 40. The adhesive layer 40 is formed of a light-transmitting adhesive, such as a resin, with little change in transmittance relative to the light-transmitting portions of the display unit 4 and the barrier unit 6. In the display device 1, the display unit 4 and the barrier unit 6 are stacked using the adhesive layer 40, so that there is no air layer between the display unit 4 and the barrier unit 6. The adhesive layer 40 is optically isotropic. That is, the adhesive layer 40 does not have polarization characteristics.

  The display unit 4 includes a translucent substrate 21, a pixel array unit 14 formed on the translucent substrate 21, a driver IC 16 having functions of an interface (I / F) and a timing generator, and a flexible printed circuit (FPC). (Flexible printed circuits)) 18. In the display unit 4, a pixel array unit 14, a driver IC 16, and a flexible printed board 18 are provided on a translucent substrate 21. As described above, in the display unit 4, the pixel array unit 14 is laminated on the translucent substrate 21. In the display unit 4, a polarizing plate 35 is disposed on the opposite side of the pixel array unit 14 from the translucent substrate 21, that is, on the barrier unit 6 side. In the display unit 4, a polarizing plate 36 is disposed on the surface of the translucent substrate 21 opposite to the pixel array unit 14, that is, the surface on the backlight 2 side. That is, the display unit 4 is laminated in the order of the polarizing plate 36, the translucent substrate 21, the pixel array unit 14, and the polarizing plate 35 from the backlight 2 toward the barrier unit 6. In the display unit 4, the adhesive layer 40 is laminated on the polarizing plate 35.

  The pixel array unit 14 has a matrix (matrix) structure in which pixels 50 including a liquid crystal layer are arranged in m rows × n columns, each unit constituting one pixel on the display. The driver IC 16 receives a master clock, a horizontal synchronization signal, and a vertical synchronization signal which are external signals from the outside. The driver IC 16 converts the level of the master clock, the horizontal synchronization signal, and the vertical synchronization signal of the voltage amplitude of the external power source into the voltage amplitude of the internal power source necessary for driving the liquid crystal, and performs timing as the master clock, the horizontal synchronization signal, and the vertical synchronization signal. A vertical start pulse, a vertical clock pulse, a horizontal start pulse, and a horizontal clock pulse are generated through a generator. The driver IC 16 gives the generated signal to the pixel array unit 14. One end of the flexible printed circuit board 18 is connected to a circuit (a TFT layer described later) formed on the surface of the translucent substrate 21, and the other end is connected to an external circuit. The flexible printed circuit board 18 is connected to the driver IC 16 via the translucent board 21 and transmits an external signal to the driver IC 16 or driving power for driving the driver IC 16.

  Next, the barrier unit 6 includes a translucent substrate 121, an electrode unit 114 formed on the translucent substrate 121, and a flexible printed circuit board (FPC (Flexible printed circuits)) 118. Here, although details will be described later, the barrier unit 6 of the present embodiment only switches between display and non-display of a predetermined image, so the display is switched using the electrode unit 114 on the translucent substrate 121. The display switching may be performed using a driver connected to the electrode portion 114. In addition to the driver, a driver IC having functions of an interface (I / F) and a timing generator may be further provided. In the barrier unit 6, an electrode unit 121 and a flexible printed circuit board 18 are provided on a translucent substrate 121. As described above, in the barrier unit 6, the electrode unit 114 is laminated on the translucent substrate 121. In the barrier section 6, a polarizing plate 135 is disposed on the opposite side of the electrode section 114 from the translucent substrate 121, that is, on the display surface side that outputs an image. That is, the barrier unit 6 is laminated in the order of the translucent substrate 121, the electrode unit 114, and the polarizing plate 135 toward the surface from which the image is output from the display unit 4. In the barrier section 6, the adhesive layer 40 is laminated on the surface of the translucent substrate 121 opposite to the electrode section 114 side. That is, the adhesive layer 40 is sandwiched between the polarizing plate 35 and the translucent substrate 121.

  The electrode unit 114 has a structure in which pixels 50 including a liquid crystal layer, which will be described later, are arranged in a row in one direction in units constituting one pixel on the display. One end of the flexible printed circuit board 118 is connected to the electrode part 114 on the translucent substrate 121 or a wiring connected to the electrode part 114, and the other end part is connected to an external circuit. The flexible printed board 118 transmits an external signal to the circuit of the translucent board 121 or driving power for driving the circuit.

  Next, the laminated structure of the display unit 4 and the barrier unit 6 will be described in more detail with reference to FIG. The display unit 4 is a so-called horizontal electric field type liquid crystal display panel such as an FFS (Fringe Field Switching) method. As the transverse electric field method, an IPS method (In Plane Switching) may be used in addition to the FFS method. The display unit 4 of the present embodiment is a horizontal electric field type liquid crystal display panel, but may be a vertical electric field type liquid crystal display panel. As shown in FIG. 5, the display unit 4 includes a pixel substrate 20 including a translucent substrate 21, a base substrate, a counter substrate 30 disposed to face the surface of the pixel substrate 20, and a pixel substrate. 20, a common electrode 33 stacked on the substrate 20, a liquid crystal layer 60 inserted between the pixel substrate 20 and the counter substrate 30, a polarizing plate 35, and a polarizing plate 36.

  The pixel substrate 20 includes a translucent substrate 21 and an active element (switching element) provided on the translucent substrate 21, for example, a film transistor (TFT) element Tr corresponding to the pixel. The TFT layer 21a includes a plurality of pixel electrodes 22 arranged in a matrix on the TFT layer 21a of the light-transmitting substrate 21, and an insulating layer 24. The TFT layer 21a includes a thin film transistor (TFT) element Tr of each pixel 50 shown in FIG. 6, a pixel signal line SGL that supplies a pixel signal to each pixel electrode 22, and a scanning signal line that drives each TFT element Tr. Wiring such as GCL is formed. Further, in the translucent substrate 21, the polarizing plate 36 is laminated on the surface opposite to the surface on which the pixel electrode 22 is formed on the TFT layer 21a as described above. The insulating layer 24 is a film formed of an insulating material such as silicon nitride, and is laminated on the surface of the pixel electrode 22 and the TFT layer 21a. The insulating layer 24 insulates the pixel electrode 22 from the common electrode.

  The common electrode 33 is a sheet-like electrode laminated on the insulating layer 24 of the pixel substrate 20. The common electrode 33 is a translucent conductor formed of a translucent conductive material such as indium tin oxide (ITO) or indium zinc oxide (IZO). The common electrode 33 is connected to the common electrode wiring. Although the common electrode 33 of the present embodiment is a sheet-like electrode, it may be a divided electrode divided into a plurality of parts. In this case, for example, the common electrode 33 is arranged so that one divided electrode corresponds to one pixel electrode 22 (pixel electrode 22 constituting one row). The common electrode 33 may be a plate-like electrode in which one divided electrode is common to the plurality of pixel electrodes 22. The common electrode 33 faces the pixel electrode 22 in a direction perpendicular to the surface of the light-transmitting substrate 21 (for example, the Z-axis direction), and the pixel described above on a surface parallel to the surface of the light-transmitting substrate 21. The signal line SGL extends in a direction parallel to the direction in which the signal line SGL extends. The common electrode 33 is configured such that a common signal having an AC rectangular waveform is applied from the drive electrode driver to the common electrode 33 through a contact conductive column having conductivity (not shown).

  The pixel signal line SGL extends in a plane parallel to the surface of the translucent substrate 21 and supplies a pixel signal for displaying an image on the pixel. The pixel substrate 20 shown in FIG. 6 has a plurality of pixels 50 arranged in a matrix. The pixel 50 includes a TFT element Tr and a liquid crystal element LC. In the example illustrated in FIG. 6, the TFT element Tr is configured by an n-channel MOS (Metal Oxide Semiconductor) TFT. The source of the TFT element Tr is connected to the pixel signal line SGL, the gate is connected to the scanning signal line GCL, and the drain is connected to one end of the liquid crystal element LC. The liquid crystal element LC has one end connected to the drain of the TFT element Tr and the other end connected to the common electrode 33.

  The pixel 50 is connected to other pixels belonging to the same row of the pixel substrate 20 by the scanning signal line GCL. The scanning signal line GCL is connected to a gate driver, and a scanning signal (Vscan) is supplied from the gate driver. The pixel 50 is connected to other pixels belonging to the same column of the pixel substrate 20 by the pixel signal line SGL. The pixel signal line SGL is connected to a source driver, and a pixel signal Vpix is supplied from the source driver. Further, the pixel 50 is connected to other pixels belonging to the same column of the pixel substrate 20 by the common electrode 33. The common electrode 33 is connected to a drive electrode driver, and a drive signal Vcom is supplied from the drive electrode driver. That is, in the example shown in FIG. 6, a plurality of pixels 50 belonging to the same row share a single common electrode 33.

  The display unit 4 is formed in a matrix on the pixel substrate 20 by applying the scanning signal Vscan to the gate of the TFT element Tr of the pixel 50 via the scanning signal line GCL shown in FIG. 6 by the gate driver. One row (one horizontal line) of the pixels 50 is sequentially selected as a display drive target. The display unit 4 supplies the pixel signal Vpix by the source driver to each pixel 50 configuring one horizontal line that is sequentially selected via the pixel signal line SGL illustrated in FIG. 6. In these pixels 50, one horizontal line is displayed in accordance with the supplied pixel signal Vpix. The display unit 4 applies the drive signal Vcom to drive the common electrode 33.

  As described above, the display unit 4 sequentially selects one horizontal line by driving the scanning signal line GCL so as to perform line sequential scanning in a time division manner. In addition, the display unit 4 displays each horizontal line by supplying a pixel signal (Vpix) to the pixels 50 belonging to one horizontal line. When performing this display operation, the display unit 4 applies a drive signal (Vcom) to a block including the common electrode 33 corresponding to the one horizontal line.

  The counter substrate 30 includes a glass substrate 31 and a color filter 32 formed on one surface of the glass substrate 31. A polarizing plate 35 is disposed on the other surface of the glass substrate 31. Further, the barrier section 6 is laminated on the surface of the polarizing plate 35 opposite to the glass substrate 31 side.

  For example, the color filter 32 periodically arranges color filters colored in three colors of red (R), green (G), and blue (B), and each of the pixels 50 shown in FIG. , B are associated as one set. Specifically, as illustrated in FIG. 7, one pixel serving as a unit for forming a color image, that is, the unit pixel 5 includes, for example, a plurality of sub-pixels (sub-pixels). In this example, the unit pixel 5 includes a sub-pixel 50R that displays R, a sub-pixel 50B that displays B, and a sub-pixel 50G that displays G. The sub-pixels 50 </ b> R, 50 </ b> B, and 50 </ b> G included in the unit pixel 5 are arranged in the X direction, that is, the row direction of the display device 1. The color filter 32 faces the liquid crystal layer 60 in a direction perpendicular to the surface of the translucent substrate 21 (for example, the Z-axis direction shown in FIGS. 2 and 3). The color filter 32 may be a combination of other colors as long as it is colored in a different color.

  The unit pixel 5 may further include subpixels of one color or a plurality of colors. When the liquid crystal display device supports only monochrome display, as shown in FIG. 8, one pixel as a unit for forming a monochrome image, that is, the unit pixel 5M corresponds to a pixel 50 (sub-pixel in a color image). . The unit pixel 5 is a basic unit for displaying a color image, and the unit pixel 5M is a basic unit for displaying a monochrome image.

  The liquid crystal layer 60 is a region between the pixel substrate 20 and the counter substrate 30, and liquid crystal is injected therein. The liquid crystal layer 60 modulates light passing therethrough according to the state of the electric field. An alignment film is provided between the liquid crystal layer 60 and the pixel substrate 20 and between the liquid crystal layer 60 and the counter substrate 30, and an incident side polarizing plate is provided on the lower surface side of the pixel substrate 20. It may be arranged.

  Here, in the display unit 4 of the above embodiment, the pixel electrode 22 and the common electrode 33 are stacked on the translucent substrate 21 in the order of the common electrode 33, that is, the common electrode 33 is on the liquid crystal layer 60 side. The display unit 4 may be laminated on the translucent substrate 21 in the order of the common electrode 33 and the pixel electrode 22, that is, the order in which the pixel electrode 22 is on the liquid crystal layer 60 side. In this case, the pixel electrode and the TFT element and the like are connected by a wiring that does not contact the shared electrode 33.

  The barrier unit 6 is a vertical electric field type liquid crystal display panel in which a barrier electrode (pixel electrode) and a common electrode are arranged with a liquid crystal layer interposed therebetween. In the barrier unit 6, an electrode unit 114 is formed on a translucent substrate 121. The electrode unit 114 includes a plurality of barrier electrodes 122 arranged in a row formed on the translucent substrate 121, and a counter substrate disposed to face the surface of the translucent substrate 121 in a direction perpendicular to the surface. 130, and a liquid crystal layer 160 inserted between the translucent substrate 121 and the counter substrate 130. The barrier unit 6 has a polarizing plate 135 laminated on the surface on the counter substrate 130 side.

  The barrier electrode 122 has the same shape as that of the unit region 150 shown in FIG. 3 and has an elongated plate shape extending along the first direction. The barrier electrodes 122 are arranged in a plurality of rows in the second direction. A voltage is applied to the barrier electrode 122 via the flexible printed circuit board 118. The barrier electrode 122 forms an electric field with the common electrode 134 when a voltage is applied. In the barrier electrode 122, the electric field forming the common electrode 134 varies depending on the applied voltage. The configuration of the barrier electrode 122 will be described later.

  The counter substrate 130 includes a glass substrate 131, an overcoat layer 133 formed on one surface of the glass substrate 131, and a common electrode 134 disposed on the barrier substrate 120 side of the overcoat layer 133. A polarizing plate 135 is disposed on the other surface of the glass substrate 131. The common electrode 134 is a sheet-like electrode laminated on the overcoat layer 133. The common electrode 134 is a translucent conductor formed of a translucent conductive material such as ITO or IZO. The common electrode 134 is connected to a later-described common electrode wiring and operates as a so-called common electrode.

  The common electrode 134 according to the present embodiment functions as a common drive electrode (counter electrode) of the barrier unit 6. The common electrode 134 of the barrier unit 6 is driven in synchronism with the entire region, but may be divided into a plurality in the direction in which the barrier electrodes are arranged. The common electrode 134 is configured such that a common signal having an AC rectangular waveform is applied from the drive electrode driver to the common electrode 134 via a contact conductive column having conductivity (not shown) (for example, Micropearl AU manufactured by Sekisui Chemical Co., Ltd.). ing.

  The liquid crystal layer 160 is a region between the translucent substrate 121 and the counter substrate 130, and liquid crystal is injected therein. The liquid crystal layer 160 modulates light passing therethrough according to the state of the electric field. For example, TN (Twisted Nematic), VA (Virtual Alignment: Vertical Alignment), ECB (Electrically Controlled Birefringence: Various modes of liquid crystal such as controlled birefringence are used. In the barrier unit 6, an alignment film is provided between the liquid crystal layer 160 and the translucent substrate 121, and an alignment film is provided between the liquid crystal layer 160 and the counter substrate 130. The alignment film sets the liquid crystal alignment direction (rubbing direction) of the liquid crystal layer 160 to a predetermined direction. The barrier unit 6 can be simplified in a laminated structure by adopting the above structure. The barrier unit 6 may be provided with a TFT element on the light-transmitting substrate 121 like the display unit 4 and control the voltage applied to the barrier electrode 122 by the TFT element.

  The display unit 4 and the barrier unit 6 are configured as described above, and the user can switch the voltage applied to the pixel electrode 22 and the unit region electrode 122 based on a signal from the control unit 9 in three dimensions. The image to be viewed is displayed. Further, the display unit 4 and the barrier unit 6 are connected by an adhesive layer 40.

  The imaging unit 8 is a device that captures an image such as a camera. For example, in a display device that controls the barrier unit 6 to display a three-dimensional image, a so-called head tracking technique or the like is used. In this head tracking technology, the barrier unit is based on the position information of the user so that the image for the right eye is incident on the right eye of the user and the image for the left eye is incident on the left eye of the user. The transmission and blocking of light 6 is controlled. The user image acquired by the imaging unit 8 is used to specify the position of the user (for example, the eyeball position).

  The control unit 9 controls the operation of each unit of the display device 1. Specifically, the control unit 9 controls turning on and off of the backlight 2, the amount of light and the intensity of light at the time of lighting, and controlling an image to be displayed on the display unit 4, and each unit region 150 of the barrier unit 6. Are controlled (transmission / blocking), and the imaging operation of the imaging unit 8 is controlled. The control unit 9 performs head tracking using the user image captured by the imaging unit 8 and controls the image displayed on the display unit 4 and the operation (transmission / blocking) of each unit region 150 of the barrier unit 6. By controlling, the display of a three-dimensional image is realized.

  The control unit 9 includes, for example, a CPU (Central Processing Unit) that is an arithmetic device and a memory that is a storage device, and can implement various functions by executing programs using these hardware resources. it can. Specifically, for example, the control unit 9 reads a program stored in a storage unit (not shown), expands it in a memory, and causes the CPU to execute instructions included in the program expanded in the memory. Then, the control unit 9 controls turning on and off of the backlight 2, the amount of light and the intensity of the light at the time of lighting, and controlling the image to be displayed on the display unit 4 according to the execution result of the instruction by the CPU. The operation (transmission / blocking) of each unit area 150 of the unit 6 is controlled.

  Next, the operation of the display device 1 will be described with reference to FIGS. FIG. 9 is a schematic diagram showing the relationship between the display device, the viewpoint, and the field of view. When the display device 1 displays a three-dimensional image, as illustrated in FIG. 9, a part of the pixels 150 of the barrier unit 6 is set as a transmission region 170 and the remaining pixels 150 are set as a light shielding region 172. The transmission region 170 is a region that transmits light, and the light shielding region 172 is a region that blocks light. As a result, a linear pixel P1 connecting the eye E1 and the transmissive region 170 is seen in one eye E1 of the observer, and a linear pixel P2 connecting the eye E1 and the light shielding region 172 is seen. No state. In addition, the other eye of the observer can see a pixel in a straight line connecting the eye and the transmission region 170 and cannot see a pixel in a straight line connecting the eye and the light shielding region 172. The display device 1 displays an image for one eye on a pixel visible to one eye, and displays an image for the other on a pixel visible to the other eye. By shifting the focal position of each eye image displayed at this time depending on the pixel position, an image that can be recognized by the observer as three-dimensional can be displayed. Moreover, the barrier unit 6 of the display device 1 displays the same image. That is, the position of the transmission region 170 on the display surface of the barrier unit 6 and the position of the light shielding region 172 are the same.

  The display device 1 detects the position of the observer with the imaging unit 8, identifies the visual field of each eye of the observer with respect to the pixel of the display unit based on the position, and displays each eye in the pixel included in the visual field. Display an image for use.

  FIG. 10A is a schematic diagram illustrating a relationship between a pixel and a field of view of the display unit. FIG. 10B is a schematic diagram illustrating the relationship between the luminance of each pixel and the visual field. An example will be described with reference to FIGS. 10A and 10B. In step S12 of FIG. 10A, among the six pixels 50a to 50f arranged in a line, the left eye visual field 80L overlaps with the pixel 50b, and the right eye visual field 80R overlaps with the pixel 50e. In this case, when the control unit 9 of the display device 1 detects the positions of the visual fields 80L and 80R, the left eye image is displayed on the pixel 50b, the pixel 50a and the pixel 50c adjacent to the pixel 50b, and the pixel 50e. An image for the right eye is displayed on the pixels 50d and 50f adjacent to the pixel 50e. The display device 1 displays an image on the six pixels 50a to 50f, so that the luminance at each position of the viewing position is high as illustrated in FIG. 10B. Here, in FIG. 10B, the light output from the pixel 50a becomes the luminance distribution 84a, the light output from the pixel 50b becomes the luminance distribution 84b, and the light output from the pixel 50c becomes the luminance distribution 84c, which is output from the pixel 50d. The emitted light becomes the luminance distribution 84d, the light outputted from the pixel 50e becomes the luminance distribution 84e, and the light outputted from the pixel 50f becomes the luminance distribution 84f. At the position of step S12 in FIG. 10A, as shown in FIG. 10B, the visual field 80L includes the light of the luminance distribution 84b output from the pixel 50b, and the visual field 80R includes the light of the luminance distribution 84e output from the pixel 50e. It is.

  Thereafter, when the observer moves from the position of step S12, the visual fields 80L and 80R move in the direction of the arrow 82 to become the visual fields 80La and 80Lb as shown in step S14. The visual field 80La includes a boundary between the pixel 50b and the pixel 50c, and the visual field 80Ra is a position including the pixel 50e and the pixel 50f. At the position of step S14 in FIG. 10A, as shown in FIG. 10B, the visual field 80La includes the light of the luminance distribution 84b output from the pixel 50b and the light of the luminance distribution 84c output from the pixel 50c. The light of the luminance distribution 84e output from 50e and the light of the luminance distribution 84f output from the pixel 50f are included.

  The display device 1 displays the image for the left eye on the pixel 50b, the pixel 50a and the pixel 50c adjacent to the pixel 50b, and the image for the right eye on the pixel 50e and the pixel 50d and the pixel 50f adjacent to the pixel 50e. By displaying the image, that is, by displaying an image even with respect to the pixels that are out of the visual fields 80L and 80R of the observer, even if the observer moves and the visual field moves, the state where the image can be seen by the observer is maintained. be able to. Further, by displaying an image on a pixel adjacent to a pixel that overlaps the field of view, a change in luminance of the image that can be seen even when the field of view moves can be suppressed. Specifically, the total area of the luminance distribution included in the visual field 80La can be made the same as the total area of the luminance distribution included in the visual field 80L. Thereby, even when the observer is moving, an image with little change can be displayed.

  Here, the display device 1 of the present embodiment shields some pixels according to the position of the visual field. In other words, the light is not transmitted and black is displayed. This will be described below with reference to FIGS. 11A to 12B. FIG. 11A is a schematic diagram illustrating a relationship between a pixel of the display unit and a visual field. FIG. 11B is a schematic diagram illustrating the relationship between the luminance of each pixel and the field of view. FIG. 12A is a schematic diagram illustrating a relationship between a pixel of the display unit and a visual field. FIG. 12B is a schematic diagram illustrating the relationship between the luminance of each pixel and the visual field.

  In the display device 1, the control unit 9 processes an image captured by the imaging unit 8. As illustrated in FIG. 11A, the visual field 80 </ b> Lb includes the boundary between the pixel 50 b and the pixel 50 c, and the visual field 80 </ b> Rb includes the pixel 50 e and the pixel 50 f. Detect position. When detecting the visual fields 80Lb and 80Rb, the control unit 9 displays the image for the left eye on the pixels 50b and 50c included in the visual field 80Lb, and displays the image for the right eye on the pixels 50e and 50f included in the visual field Rb. Let Further, the control unit 9 does not display the left-eye image on the pixel 50a whose distance from the visual field 80Lb is more than the threshold value, and does not display the right-eye image on the pixel 50d whose distance from the visual field 80Rb is more than the threshold value. Is not displayed. In the pixel 50a, the visual field and distance of the right eye corresponding to the adjacent transmission region are within other threshold values. Similarly, in the pixel 50d, the visual field and distance of the left eye are within other threshold values. The other threshold values are larger than the above threshold values.

  The display device 1 displays each eye image on the pixels 50b, 50c, 50e, and 50f included in the field of view, and does not display the image on the pixels 50a and 50d that are separated from the field of view by a threshold distance or more. The luminance distribution at the position becomes the balance shown in FIG. 11B. That is, the light of the luminance distributions 84b, 84c, 84e, and 84f is output at each position. Thereby, the light of the overlapping portion of the luminance distributions 84b and 84c is output to the visual field 80Lb, and the light of the overlapping portion of the luminance distributions 84e and 84f is output to the visual field 80Rb. Thereby, the output of the light output toward the visual field can be maintained.

  Further, the display device 1 does not display an image on a part of the pixels, so that, as shown in FIGS. 12A and 12B, even when the visual fields 80Lc and 80Rc further move, another image is displayed in each visual field. It can suppress that the luminance distribution of the light of a pixel is included. That is, it is possible to suppress the light of the image displayed on the pixel 50d from entering the visual field 80Lc. In addition, the display device 1 displays an image on pixels with overlapping fields of view and pixels within a threshold distance, so that even when the fields of view 80Lc and 80Rc further move, as shown in FIGS. Here, the change can be suppressed. A thick line 86 shown in FIG. 12B is a total value of the luminance at each viewing position.

  As described above, the display device 1 can suppress a change in luminance of an image to be displayed by displaying an image also on a pixel adjacent to a pixel that overlaps the field of view, and can change another image adjacent by moving the field of view. It is possible to suppress the occurrence of crosstalk in which the

  Here, it is preferable that the display device 1 does not display an image (displays black) for pixels whose luminance distribution is not included in the field of view. Moreover, it is preferable that the display apparatus 1 displays an image for the pixel whose luminance distribution is included in the visual field. The display device 1 preferably switches between displaying and not displaying an image on a pixel when the change in luminance of the visual field is 20% or less when the image is displayed and when the image is not displayed. For example, when the luminance at the position where the light emitted from the plurality of pixels reaches is α, when the field of view 80Lc shown in FIG. 12B moves toward the pixel 50d, the field of view 80Lc overlaps with α × 0.8. It is preferable to display adjacent pixels before moving. In addition, when an image is displayed on the pixel 50d at the position shown in FIGS. 12A and 12B, the image is not displayed on the pixel 50 when the field of view 80Lc moves to the pixel 50b side even at a position where α × 0.8 overlaps. And As a result, even if the display of the pixels is switched, the influence on the image can be reduced, and it is possible to suppress the viewer from feeling uncomfortable.

  Next, the operation of the display device 1 will be described with reference to FIG. FIG. 13 is a flowchart illustrating a flow of control by the display device according to the embodiment. The control shown in FIG. 13 is executed by the control unit 9.

  As illustrated in FIG. 13, the control unit 9 detects the position of the user's eyes based on the user image captured by the imaging unit 8 (step S <b> 101). For example, the control unit 9 detects the contour of the user's face from the user's image, specifies the position of the user's face in the image, and then performs user matching included in the face by pattern matching or the like. The position of the eyes is specified, and the position of the user's eyes with respect to the display device 1 is detected based on the size of the eyes and the interocular distance. Alternatively, the control unit 9 identifies the position of the user's eyeball (right eye and left eye) in the image based on the difference in the amount of light of the pupil, iris, and sclera included in the user's image, The position of the user's eyes with respect to the display device 1 may be detected. When the position of the user's eyes is detected, the control unit 9 also calculates a distance in the Z-axis direction (for example, see FIG. 2) between the user and the display surface 4S of the display unit 4. For example, when the distance in the Z-axis direction between the user and the display surface 4S of the display unit 4 is “T1”, the control unit 9 displays the user on the image captured by the imaging unit 8. It is assumed that the interocular distance of “t1” has been measured in advance. For example, when the interocular distance of the user on the image captured by the image capturing unit 8 in step S101 is “0.5 × t1”, the control unit 9 is connected to the display surface 4S of the display unit 4. The distance in the Z-axis direction is calculated as “0.5 × T1”.

  Then, the control part 9 determines the display image of the display part 4 based on a user's eye position (step S102). Specifically, the control unit 9 identifies the visual field of the right eye and the visual field of the left eye on the display unit 4 based on the position of the user's eyes and the position of the transmission region 170 of the barrier unit. After specifying the visual field, the control unit 9 determines pixels for displaying the right-eye image and pixels for displaying the left-eye image. At this time, the control unit 9 determines whether there is a pixel that does not display an image, based on the relative positions of the right eye field, the left eye field, and the pixel. For example, an image is not displayed when it is not included in either the right-eye field or the left-eye field and the ratio of the field-of-view in the luminance distribution is 20% or less of the total luminance of the field-of-view. Let it be a pixel. After determining the pixel for displaying the image, the control unit 9 determines the pixel display of the right-eye image and the left-eye image, and then generates a predetermined parallax between the right-eye image and the left-eye image. The display image is determined by adjusting as described above. Subsequently, the control unit 9 performs rendering (step S103) and displays an image on the display unit 4 (step S104).

  Subsequently, the control unit 9 determines whether to end the image display (step S105). As a result of the determination, if the display of the image is to be ended (step S105, Yes), the control unit 9 ends the control shown in FIG. On the other hand, as a result of the determination, if the display of the image is not terminated (No at Step S105), the control unit 9 returns to the procedure at Step S101 and continues the control shown in FIG.

  14 and 15 are schematic diagrams illustrating the relationship between the pixels of the display unit and the field of view. Thereby, as shown in step S22 of FIG. 14, when the visual field 80Ld overlaps only the pixel 50c1 and the visual field 80Rd overlaps only the pixel 50f1 among the pixels 50a1 to 50h1, the control unit 9 displays the right eye on the pixel 50a1. The left-eye image is displayed on the pixel 50b1 to the pixel 50d1, the right-eye image is displayed on the pixel 50e1 to the pixel 50g1, and the left-eye image is displayed on the pixel 50f1. As shown in step S24 from this state, when the visual field 80Le moves in the direction of the pixel 50d1 and the visual field 80Re in the direction of the pixel 50g1, the control unit 9 displays the left-eye image and the left-eye visual field 80Le. It is assumed that no image is displayed on the pixel 50b1 away from the image. Further, the control unit 9 displays an image for the right eye and does not display an image on the pixel 50e1 away from the visual field 80Re for the right eye. In addition, the control unit 9 does not display an image even on the pixel 50f1 that is a certain distance away from the field of view of the left eye at the adjacent position. In this manner, the control unit 9 can prevent the image from being displayed on some pixels in accordance with the movement of the field of view as shown in FIG. 14 by executing the processing of FIG. Thereby, even if a visual field moves, it can suppress that crosstalk arises.

  Further, as shown in step S32 of FIG. 15, when the visual field 80Lf overlaps the pixels 50c1 and 50d1 and the visual field 80Rf overlaps only the pixels 50e1 and 50f1, among the pixels 50a1 to 50h1, the control unit 9 proceeds to step S34. As shown, the left-eye image is displayed, and the image is not displayed on the pixel 50b1 away from the left-eye visual field 80Lf. Further, the control unit 9 displays an image for the right eye and does not display an image on the pixel 50g1 that is distant from the visual field 80Rf for the right eye. In addition, the control unit 9 sets the pixel 50a1 that is a predetermined distance away from the field of view of the left eye at the adjacent position so as not to display an image.

  When the visual field 80Lg moves more in the direction of the pixel 50b1 and the visual field 80Rg moves in the direction of the pixel 50d1 by a shorter distance than the visual field 80Lg from the state of step S34, as shown in step S36, the control unit 9 The left-eye image is displayed on the pixel 50b1 that has stopped displaying the left-eye image. In addition, the control unit 9 displays an image for the right eye and does not display an image on the pixel 50a1 away from the field of view of the right eye. As described above, the control unit 9 can display the image on some pixels that have not displayed the image in accordance with the movement of the field of view as shown in FIG. 15 by executing the processing of FIG. . Thereby, it is possible to display an image corresponding to the movement while suppressing the occurrence of crosstalk even if the field of view moves.

  Moreover, in the said embodiment, although it changed whether to display an image on a display part, it is not limited to this. You may make it change the light transmittance of the image displayed on a display part. Crosstalk can also be suppressed by adjusting the luminance.

  The display device preferably uses an organic EL display as the display unit. In this case, the backlight 2 may not be provided. By using an organic EL display for the display portion, it is possible to turn off pixels that do not display an image. Thereby, the power consumption at the time of a display can be reduced.

  Here, in the above embodiment, as the parallax adjustment unit that adjusts the visual field of the observer with respect to the image displayed on the display unit so that the right eye image can be seen by the right eye and the left eye image can be seen by the left eye The barrier unit 6 is provided and laminated on the display surface side of the display unit 4 or the present invention is not limited thereto.

  FIG. 16 is a schematic diagram illustrating a schematic configuration of a display device according to another embodiment. The display device 1a illustrated in FIG. 16 includes a display unit 4a and a barrier unit 6a. The display device 1a further includes a backlight unit. The display unit 4 a and the barrier unit 6 a have substantially the same configuration as the display unit 4 and the barrier unit 6 of the display device 1.

  In the display device 1a, a barrier unit 6a is laminated on a surface opposite to a display surface that outputs an image of the display unit 4a. In the display device 1a, the adhesive layer 40 is provided between the translucent substrate 121 of the display unit 4a and the polarizing plate 135 of the barrier unit 6a, and the display unit 4a and the barrier unit 6a are stacked by the adhesive layer 40a.

  The display device 1a can control light incident on the display unit 4a from the backlight unit by disposing the barrier unit 6a between the display unit 4a and the backlight unit. That is, the position and direction of light incident on the display unit 4a are adjusted. As described above, the display device 1a can display an image that the observer can see as a three-dimensional image even if the barrier unit 6a is disposed between the display unit 4a and the backlight unit. Further, the display device 1a can increase the light use efficiency. As described above, even when the stacking order of the parallax adjustment unit and the display unit is reversed, the transmittance of some pixels of the display unit is reduced according to the observer's field of view in the same manner as in the above embodiment. The effect of form can be obtained.

  FIG. 17 is a schematic diagram illustrating a schematic configuration of a display device according to another embodiment. In the display device 1b illustrated in FIG. 17, a liquid crystal lens unit 206 is stacked on the display unit 4 instead of the barrier unit. In the display device 1b, the liquid crystal lens unit 206 is disposed on the display surface side of the display unit 4 and is laminated via the adhesive layer 40b. The liquid crystal lens unit 206 includes a translucent substrate 221, an electrode unit 214 formed on the translucent substrate 221, and a flexible printed circuit board (FPC (Flexible printed circuits)) 218. Here, the liquid crystal lens unit 206 switches between a state in which the direction of light is bent depending on the position and a lens effect is generated, and a state in which light is allowed to pass through. The liquid crystal lens 206 is provided with an electrode portion 214 and a flexible printed circuit board 218 on a translucent substrate 221. As described above, in the liquid crystal lens unit 206, the electrode unit 214 is laminated on the translucent substrate 221. In the liquid crystal lens unit 206, a polarizing plate 235 is disposed on the opposite side of the electrode unit 214 from the translucent substrate 121, that is, on the display surface side for outputting an image. That is, the liquid crystal lens unit 206 is laminated in the order of the translucent substrate 221, the electrode unit 214, and the polarizing plate 235 toward the surface from which the image is output from the display unit 4. Note that the polarizing plate 235 is not necessarily provided. In the liquid crystal lens unit 206, the adhesive layer 40b is laminated on the surface of the translucent substrate 221 opposite to the 214 side. That is, the adhesive layer 40 b is sandwiched between the polarizing plate 35 and the translucent substrate 221.

  Similarly to the electrode portion 114, the electrode portion 214 has a structure in which pixels including a liquid crystal layer are arranged in a row in one direction, which constitutes one pixel on the display. One end of the flexible printed board 218 is connected to the wiring connected to the electrode portion 213 or the electrode portion 214 on the light-transmitting substrate 221, and the other end is connected to an external circuit. The flexible printed board 218 transmits an external signal to the circuit of the translucent board 221 or driving power for driving the circuit.

  The display device 1b refracts the image output from the display unit 4 in a predetermined direction by the liquid crystal lens unit 206, thereby generating parallax between an image reaching the observer's right eye and an image reaching the left eye. As described above, even when the liquid crystal lens unit 206 is used as the parallax adjustment unit, the effect of the above embodiment can be obtained by reducing the transmittance of some pixels depending on the visual field of the observer as in the above embodiment. Can do.

  Here, the display device of the above embodiment is more specifically provided with one polarizing plate between the display units 4, 4 a, 4 b and the parallax adjustment unit (the barrier unit 6, 6 a or the liquid crystal lens unit 206). In this example, only the polarizing plate on the display unit 4 side is provided between the display unit 4 and the parallax adjustment unit (the barrier unit 6 or the liquid crystal lens unit 206). However, the present invention is not limited to this. In the display device, a polarizing plate may be provided only on the parallax adjustment unit side between the display unit and the parallax adjustment unit. In the display device, polarizing plates may be provided on both sides of the display unit, and polarizing plates may be provided on both sides of the parallax adjusting unit. That is, four polarizing plates may be provided. The display device may not include a polarizing plate between the display unit and the parallax adjustment unit. That is, the display device may be provided with the polarizing plate only on the surface where the adhesive layer between the display unit and the parallax adjusting unit is not provided.

  FIG. 18 is a schematic diagram illustrating a schematic configuration of a display device according to another embodiment. In the display device 1 c illustrated in FIG. 18, a distance adjustment unit 302 and a fixed parallax adjustment unit 304 are stacked on the display surface of the display unit 4. The display unit 4 and the distance adjustment unit 302 are connected by an adhesive layer 40c. The distance adjustment unit 302 is a spacer that adjusts the distance in the stacking direction between the display surface of the display unit 4 and the fixed parallax adjustment unit 304. The distance adjustment unit 302 is a translucent member such as glass or plastic. Note that the distance adjusting unit 302 is not necessarily provided.

  The fixed parallax adjustment unit 304 is a mechanism that displays a fixed parallax without a driving mechanism. The fixed parallax adjustment unit 304 is formed on the surface of the distance adjustment unit 302. The fixed parallax adjustment unit 304 is a lens in which a plurality of lenses having a shape extending in a predetermined direction, such as a pattern of light shielding elements arranged in a row in one direction and a cylindrical lens, are arranged in a row in one direction. Is a unit.

  The display device 1c causes the fixed parallax adjustment unit 304 to generate parallax with respect to the image output from the display unit 4, and generates parallax between the image reaching the right eye and the image reaching the left eye of the observer. . As described above, even when the fixed parallax adjustment unit 304 is used as the parallax adjustment unit, the transmittance of some of the pixels of the display unit is reduced according to the visual field of the observer as in the above embodiment. The effect of can be obtained.

  Moreover, although the said embodiment demonstrated as a display apparatus which displays a three-dimensional image, it is good also as a display apparatus of the 2 screen display which displays a separate image toward the observer who has each right and left of a screen. Also in this case, by performing the above processing, it is possible to suppress the occurrence of crosstalk in which the other image can be seen at the position where one image is viewed.

[2. Application example]
As an application example of the present disclosure, an example in which the above-described display device 1 is applied to an electronic device will be described.

  FIG. 19 to FIG. 27 are diagrams illustrating an example of an electronic apparatus including the display device according to this embodiment. The display device 1 according to the present embodiment is an electronic device in various fields such as a mobile terminal device such as a mobile phone or a smartphone, a television device, a digital camera, a notebook personal computer, a video camera, or meters provided in a vehicle. It is possible to apply to. In other words, the display device 1 according to the present embodiment can be applied to electronic devices in various fields that display a video signal input from the outside or a video signal generated inside as an image or video. The electronic device includes a control device that supplies a video signal to the display device and controls the operation of the display device.

(Application example 1)
An electronic apparatus shown in FIG. 19 is a television apparatus to which the display device 1 according to this embodiment is applied. The television apparatus has, for example, a video display screen unit 510 including a front panel 511 and a filter glass 512, and the video display screen unit 510 is a display device according to the present embodiment.

(Application example 2)
20 and 21 is a digital camera to which the display device 1 according to the present embodiment is applied. The digital camera includes, for example, a flash light emitting unit 521, a display unit 522, a menu switch 523, and a shutter button 524, and the display unit 522 is a display device according to the present embodiment. As shown in FIG. 20, the digital camera has a lens cover 525, and a photographing lens appears by sliding the lens cover 525. The digital camera can take a digital photograph by imaging light incident from the taking lens.

(Application example 3)
The electronic device shown in FIG. 22 represents the appearance of a video camera to which the display device 1 according to this embodiment is applied. This video camera has, for example, a main body 531, a subject photographing lens 532 provided on the front side surface of the main body 531, a start / stop switch 533 during photographing, and a display 534. The display unit 534 is a display device according to the present embodiment.

(Application example 4)
The electronic apparatus shown in FIG. 23 is a notebook personal computer to which the display device 1 according to this embodiment is applied. The notebook personal computer includes, for example, a main body 541, a keyboard 542 for inputting characters and the like, and a display unit 543 for displaying an image. The display unit 543 is configured by the display device according to the present embodiment. Has been.

(Application example 5)
24 to 26 is a mobile phone to which the display device 1 according to this embodiment is applied. FIG. 24 is a front view with the mobile phone open, FIG. 25 is a right side view with the mobile phone open, and FIG. 26 is a front view with the mobile phone folded. For example, the mobile phone includes an upper housing 551 and a lower housing 552 connected by a connecting portion (hinge portion) 553, and includes a display 554, a sub-display 555, a picture light 556, and a camera 557. Yes. The display device 1 is attached to the display 554. The display 554 of the mobile phone may have a function of detecting a touch operation in addition to a function of displaying an image.

(Application example 6)
The electronic device illustrated in FIG. 27 is an information portable terminal that operates as a portable computer, a multifunctional portable phone, a portable computer capable of voice communication, or a portable computer capable of communication, and is sometimes referred to as a so-called smartphone or tablet terminal. . This information portable terminal has a display unit 562 on the surface of a housing 561, for example. The display unit 562 is a display device according to the present embodiment.

DESCRIPTION OF SYMBOLS 1 Display apparatus 2 Backlight 4 Display part 4S Display surface 5, 5M Unit pixel 6 Barrier part 8 Imaging part 9 Control part 14 Pixel array part 16 Driver IC
DESCRIPTION OF SYMBOLS 18 Flexible printed circuit board 20 Pixel board | substrate 21 Translucent board | substrate 22 Pixel electrode 30 Opposite board | substrate 31 Glass substrate 32 Color filter 33 Drive electrode 35 Polarizing plate 40 Adhesive layer 50 Pixel 50B Subpixel 50G Subpixel 60 Liquid crystal layer 80 Field of view 82 Arrow 84 Brightness Distribution 114 Pixel portion 118 Flexible printed circuit board 121 Translucent substrate 122 Unit region electrode 131 Glass substrate 133 Driving electrode 135 Polarizing plate 150p Aperture 150 Unit region 160 Liquid crystal layer 170 Transmission region 172 Light shielding region 522 Display unit 523 Menu switch 524 Shutter button 531 Main unit 532 Lens 533 Start / stop switch 534 Display unit 541 Main unit 542 Keyboard 543 Display unit 551 Upper housing 552 Lower housing 554 Display 555 Sub display 556 Picture light 557 Camera 561 Housing 562 Display unit

Claims (6)

A plurality of pixels are two-dimensionally arranged and a display unit for displaying an image;
A parallax adjustment unit that adjusts the image visible to the observer;
A position detector for detecting the position of the observer;
A control unit configured to display, on the display unit, a first image that can be viewed by the observer from a first viewpoint and a second image that can be viewed by a second viewpoint based on the detection result of the position detection unit; Have
The control unit displays the first image on a pixel within a set distance from the field of view of the first viewpoint based on a detection result of the position detection unit, and is within a set distance from the field of view of the second viewpoint. A display device that displays the second image on a pixel and reduces the transmittance of a pixel farther than a set distance from the field of view of the first viewpoint and the field of view of the second viewpoint.   The display device according to claim 1, wherein the control unit displays black on a pixel farther than a set distance from the visual field of the first viewpoint and the visual field of the second viewpoint.   The display device according to claim 1, wherein the set distance is a distance at which light incident on the visual field is 20% or less of light incident from an adjacent pixel.   The parallax adjusting unit includes a plurality of unit regions extending in a second direction perpendicular to the first direction arranged in a row in the first direction, and switches between light transmission and light shielding of the unit region, 4. The display device according to claim 1, wherein the unit region that transmits light is at least one of a field of view of the first viewpoint and a field of view of the second viewpoint. 5.   The display device according to claim 1, wherein the parallax adjustment unit is stacked on a display surface side of the display unit. The display unit is an organic EL display in which an organic EL is arranged corresponding to the pixel,
The display device according to claim 1, wherein the control unit turns off pixels farther than a set distance from the visual field of the first viewpoint and the visual field of the second viewpoint.

Images