JP2012022155A - Display apparatus and light source device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display apparatus that achieves uniform illumination, allowing a viewer to be unaware of a border of a microlens.SOLUTION: A display apparatus comprises: a light source device that has light source units which are provided in a matrix in a row direction and a column direction, and each of which includes a first light source for irradiating light including a first polarized component, a second light source for irradiating light including a second polarized component, and a lens for emitting light irradiated by the first light source and light irradiated by the second light source in different directions, respectively; and a display unit in which a first display area and a second display area are arranged alternately along the column direction, and in which the first display area allows the first polarized component of incident light incident from the light source device to pass, so as to display an image, and the second display area allows the second polarized component of the incident light to pass, so as to display an image. In the row direction, the light source units are arranged in a predetermined pitch. With respect to a position in the row direction, each of the light source units is provided so as to differ, by an amount less than the predetermined pitch, from at least one of other light source units arranged in the column direction.

Description

  The present invention relates to a display device and a light source device.

As a technology for visually recognizing a stereoscopic image using a transmissive display monitor and a lens, light from the right eye light source and left eye light are irradiated from the back side of the transmissive display monitor with a right eye light source and a left eye light source A technique is known in which light from a light source is imaged on a right eye and a left eye of a viewer by a lens, respectively. For example, the following patent documents describe techniques related to stereoscopic viewing.
Patent Document 1 JP 2009-98589 A

  By the way, a lenticular lens is known as a stereoscopic lens. The lenticular lens is a lens in which a plurality of microlenses having a half-moon shaped cross section extending in the vertical direction are arranged in the horizontal direction. In the conventional display device, since the boundary lines of the plurality of microlenses are linear, they are visible to the viewer.

  In order to solve the above-described problem, in a first aspect of the present invention, a display device for displaying an image, a first light source that irradiates light including a first polarization component, and a second polarization component A light source having a light source unit including a second light source that irradiates light including a light source unit and a lens that emits light emitted from the first light source and the second light source in different directions, in a matrix in the row direction and the column direction A first display area that transmits an image by transmitting a first polarized component of incident light incident from the light source device, and a second that displays an image by transmitting a second polarized component of incident light. Display areas alternately arranged along the column direction, the light source units are arranged at a predetermined pitch in the row direction, and each light source unit is arranged in the column direction. Pair with at least one of the light source units Te, the position in the row direction is smaller amount only differently provided a display device is provided than the pitch determined in advance.

  It should be noted that the above summary of the invention does not enumerate all the necessary features of the present invention. In addition, a sub-combination of these feature groups can also be an invention.

1 shows a display device 10 according to the present embodiment. The structure of the display apparatus 10 which concerns on this embodiment is shown. The structure of the display apparatus 10 which concerns on this embodiment is shown. The structure of the modification of the display apparatus 10 which concerns on this embodiment is shown. The optical path example of the light given to the viewer from the display apparatus 10 which concerns on this embodiment is shown. The light source part 14 which concerns on this embodiment is shown. 1 shows an optical system 16 according to the present embodiment. The light source device 40 which concerns on this embodiment is shown. The modification of the light source part 14 which concerns on this embodiment is shown. The modification of the optical system 16 which concerns on this embodiment is shown. The modification of the light source device 40 which concerns on this embodiment is shown. The modification of the light source part 14 which concerns on this embodiment is shown. The modification of the optical system 16 which concerns on this embodiment is shown. The modification of the light source device 40 which concerns on this embodiment is shown. The modification of the optical system 16 which concerns on this embodiment is shown. The modification of the light source device 40 which concerns on this embodiment is shown.

  Hereinafter, the present invention will be described through embodiments of the invention, but the following embodiments do not limit the invention according to the claims. In addition, not all the combinations of features described in the embodiments are essential for the solving means of the invention.

  FIG. 1 shows the entire display device 10 according to the present embodiment. The display device 10 according to the present embodiment includes a light source unit 14, an optical system 16, and a display unit 12. The display device 10 receives image data including a right-eye image and a left-eye image for stereoscopic display from a reception device, a reproduction device, or the like. The display device 10 displays the image for the right eye and gives it to the right eye of the viewer 60, and displays the image for the left eye and gives it to the left eye of the viewer 60. Such a display device 10 can make a viewer 60 who does not wear dedicated glasses for image separation, that is, a naked eye viewer 60 observe a stereoscopic image.

  The light source unit 14 irradiates the back surface of the display unit 12 with light. The display unit 12 transmits the light emitted from the light source unit 14 to the viewer 60. The optical system 16 is disposed between the light source unit 14 and the display unit 12 and refracts the light emitted from the light source unit 14 in the viewer's viewpoint direction. Thereby, the viewer 60 can view the image displayed on the display unit 12.

  FIG. 2A shows a configuration of the display device 10 according to the present embodiment. In the light source unit 14, a plurality of light sources that can function as a right eye light source and a left eye light source are arranged. The light source unit 14 causes each light source to function as either a right-eye light source 32 that emits light for displaying a right-eye image or a left-eye light source 34 that emits light for displaying a left-eye image. .

  The right eye light source 32 and the left eye light source 34 may be alternately provided in both the row direction and the column direction. Each light source may emit light of the first polarization component when functioning as the light source 32 for the right eye, and may emit light of the second polarization component when functioning as the light source 34 for the left eye. That is, the plurality of right-eye light sources 32 irradiate light of the first polarization component from the back surface of the display unit 12. The plurality of left-eye light sources 34 irradiate light of the second polarization component from the back surface of the display unit 12.

  The display unit 12 displays a right-eye image displayed by light from the right-eye light source 32 and a left-eye image displayed by light from the left-eye light source 34. The display unit 12 may be a transmissive panel that provides the viewer 60 with a displayed image by transmitting light irradiated from the back side.

  In the display unit 12, a plurality of first display regions 22 that transmit the first polarization component of incident light and a plurality of second display regions 24 that transmit the second polarization component of incident light are alternately arranged. Is done. The display unit 12 displays an image for the right eye to be displayed toward the right eye of the viewer 60 who views the image in the first display area 22 and displays the image for the left eye of the viewer 60. The left-eye image may be displayed in the second display area 24. The light of the first polarization component and the light of the second polarization component may be linearly polarized light (S polarized light and P polarized light) whose polarization directions are orthogonal to each other.

  The first display area 22 and the second display area 24 may be provided by extending in the horizontal direction, and may be provided alternately in a direction perpendicular to the horizontal direction. For example, each of the plurality of first display areas 22 and the plurality of second display areas 24 extends in the horizontal direction (left-right direction) of the display unit 12 and alternately in the vertical direction (up-down direction) of the display unit 12. Arranged. For example, the display unit 12 may include a horizontal line that transmits the light of the first polarization component and a horizontal line that transmits the light of the second polarization component alternately one line at a time. The horizontal line indicates a line having a width corresponding to one pixel in the display unit 12.

  The optical system 16 is provided between the display unit 12 and the light source unit 14. The optical system 16 may be a lens array in which lenses 42 that emit light emitted from the right-eye light source 32 and the left-eye light source 34 in different directions are regularly arranged. The lens array may be configured such that the lenses 42 are provided at a predetermined pitch in the row direction, and are alternately provided in the column direction so as to be shifted by a half of the pitch. Here, the pitch refers to the width of the lens 42 in the row direction. The lens 42 may be a lenticular lens having a half-moon shaped cross section. The pitch may be equal to the sum of the width of the right eye light source 32 and the width of the left eye light source 34.

  The optical system 16 condenses the light from the plurality of right-eye light sources 32 to the first viewpoint corresponding to the right eye of the viewer 60 through the plurality of first display regions 22. Further, the optical system 16 condenses the light from the plurality of left-eye light sources 34 to the second viewpoint corresponding to the left eye of the viewer 60 through the plurality of second display areas 24. Since the lenses 42 are provided so as to be shifted in the column direction, luminance unevenness of the light source can be reduced.

  FIG. 2B specifically shows the configuration of the display device 10 of FIG. 2A. Specifically, the display unit 12 includes a liquid crystal display device 122 and a polarizing plate 124. The polarizing plate 124 is provided with a plurality of first polarizing regions 220 and a plurality of second polarizing regions 240 extending in the horizontal direction and alternately provided in the vertical direction. For example, the first polarization region 220 transmits only S-polarized light, and the second polarization region 240 transmits only P-polarized light. The arrangement pattern of the first polarizing area 220 and the second polarizing area 240 is the same as the arrangement pattern of the first display area 22 and the second display area 24.

  Specifically, the light source unit 14 includes a planar light source 142 and a polarizing plate 144. In the polarizing plate 144, a plurality of first polarizing regions 320 and a plurality of second polarizing regions 340 are alternately provided in both the horizontal direction and the vertical direction. For example, the first polarization region 320 transmits only S-polarized light, and the second polarization region 340 transmits only P-polarized light. The arrangement pattern of the first polarization region 320 and the second polarization region 340 is the same as the arrangement pattern of the right-eye light source 32 and the left-eye light source 34.

  Light from the planar light source 142 enters the polarizing plate 144. The planar light source 142 emits light including at least S-polarized light and P-polarized light components. The light that has passed through the first polarizing region 320 of the polarizing plate 144 corresponds to, for example, the light from the right eye light source. The light that has passed through the second polarizing region 340 of the polarizing plate 144 corresponds to, for example, the light of the left eye light source. The light of each polarization component is refracted in a predetermined direction by the optical system 16 and enters the polarizing plate 124.

  For example, light that has passed through the first polarizing region 220 of the polarizing plate 124 is displayed on the display surface of the liquid crystal display device 122 in a region where an image for the right eye to be displayed toward the right eye of the viewer 60 is displayed. Incident. The light that has passed through the second polarizing region 240 of the polarizing plate 124 enters the region on the display surface of the liquid crystal display device 122 where the left-eye image to be displayed toward the left eye of the viewer 60 is displayed. . The liquid crystal display device 122 displays a right-eye image in a region facing the first polarization region 220 and a left-eye image in a region facing the second polarization region 240.

  FIG. 2C shows a configuration of a modified example of the display device 10. Specifically, the display unit 12 includes a liquid crystal display device 122, a polarizing plate 126, and a phase plate 128. Specifically, the light source unit 14 includes a planar light source 142, a polarizing plate 146, and a phase plate 148. A film-like polarizing plate 126 and a phase plate 128 are provided between the liquid crystal display device 122 and the optical system 16 in order from the liquid crystal display device 122 side. Between the planar light source 142 and the optical system 16, a film-like polarizing plate 146 and a phase plate 148 are provided in this order from the planar light source 142 side. The planar light source 142, the optical system 16, and the liquid crystal display device 122 have the same configuration as in FIG. 2B.

  The polarizing plate 126 and the polarizing plate 146 transmit the light of the polarization component in the orthogonal direction. The phase plate 128 is provided with a plurality of first phase regions 260 and a plurality of second phase regions 280 extending in the horizontal direction and alternately provided in the vertical direction. In the phase plate 148, a plurality of first phase regions 360 and a plurality of second phase regions 380 are alternately provided in both the horizontal direction and the vertical direction.

  For example, the first phase regions 260 and 360 advance the phase of the passing light by π / 4. Second phase regions 280 and 380 delay the phase of light passing therethrough by π / 4. The arrangement pattern of the first phase region 260 and the second phase region 280 is the same as that of the first display region 22 and the second display region 24. The arrangement pattern of the first phase region 360 and the second phase region 380 is the same as the arrangement pattern of the right eye light source 32 and the left eye light source 34.

  When light from the planar light source 142 passes through the polarizing plate 146, it becomes linearly polarized light having a polarization component in a predetermined direction (the arrow direction in the polarizing plate 146 in the drawing). When linearly polarized light passes through the phase plate 148, for example, light that has passed through the first phase region 360 is clockwise circularly polarized light, and light that has passed through the second phase region 380 is counterclockwise circularly polarized light. Is converted to For example, clockwise circularly polarized light corresponds to the light of the right eye light source, and counterclockwise circularly polarized light corresponds to the light of the left eye light source. Each circularly polarized light that has passed through the phase plate 148 is refracted in a predetermined direction for each circularly polarized light in the optical system 16. Each circularly polarized light refracted by the optical system 16 is converted into linearly polarized light by the phase plate 128.

  The first phase region 260 converts two circularly polarized lights having opposite rotation directions into two linearly polarized lights having orthogonal polarization directions. The second phase region 280 also converts two circularly polarized lights having opposite rotation directions into two linearly polarized lights having orthogonal polarization directions. The polarizing plate 126 allows only the light of the polarization component in a predetermined direction (the arrow direction in the polarizing plate 126 in the drawing) out of the light output from the phase plate 128. In other words, the polarizing plate 126 passes, for example, the light output from the first phase region 260 toward the right eye of the viewer 60. In addition, the polarizing plate 126 passes, for example, light directed toward the left eye of the viewer 60 among the light output from the second phase region 280.

  FIG. 3 shows an example of an optical path of light given to the viewer 60 from the display device 10 according to the present embodiment. The display device 10 of this example further includes a diffusion plate 44 between the optical system 16 and the display unit 12. In the display device 10, the light of the first polarization component output from each of the plurality of right-eye light sources 32 is refracted by the optical system 16 in the direction of the first viewpoint R corresponding to the right eye of the viewer 60. The Then, the light of the first polarization component refracted by the optical system 16 is diffused by the diffusion plate 44, passes through the plurality of first display areas 22 of the display unit 12, and passes through the right of the viewer 60. Given to the eyes. The diffusion plate 44 may be an anisotropic diffusion plate that diffuses light more strongly in the vertical direction than in the horizontal direction.

  In the display device 10, the light of the second polarization component output from each of the plurality of light sources 34 for the left eye is directed in the direction of the second viewpoint L corresponding to the left eye of the viewer 60 by the optical system 16. Refracted. Then, the light of the second polarization component refracted by the optical system 16 is diffused by the diffusion plate 44 and then passes through the plurality of second display areas 24 of the display unit 12 to the left of the viewer 60. Given to the eyes.

  Here, the display unit 12 displays the right-eye image in the plurality of first display areas 22. Further, the display unit 12 displays the left-eye image in the plurality of second display areas 24. Therefore, the display device 10 provides the right eye image displayed in the plurality of first display areas 22 to the first viewpoint R corresponding to the right eye of the viewer 60, and the left eye of the viewer 60 is displayed. The left-eye image displayed in the plurality of second display areas 24 can be given to the second viewpoint L corresponding to. Thereby, according to the display apparatus 10, a stereoscopic image can be observed with respect to the naked eye viewer 60 who does not use dedicated glasses.

  The display device 10 detects the position of the viewer 60 who views the image, and the light source unit at any position in the column direction based on the position of the viewer 60 detected by the detection unit 58. You may provide the control part 54 which controls whether light is inject | emitted. Here, the light source unit refers to a unit of a light source configured by superposing at least a part of the right eye light source 32 and the left eye light source 34 and the lens 42.

  The detection unit 58 detects the position of the image viewer 60 in the image. Here, the position of the viewer 60 refers to the position of the viewer 60 in a direction (horizontal direction) parallel to the arrangement direction of the right-eye light source 32 and the left-eye light source 34. When the position of the viewer 60 changes, the detection unit 58 detects the change and outputs a signal to the control unit 54.

  The detection unit 58 may detect the position of the viewer 60 by irradiating the viewer 60 with invisible light and detecting reflected light from the eyes of the viewer 60. By using invisible light, the position information of the viewer 60 can be detected without disturbing the observation of the viewer 60. Invisible light is, for example, infrared.

  The detection unit 58 may detect the position of the viewer 60 by detecting reflected light from the eyes of the viewer 60 in the image displayed by the display unit 12. In this case, the position detection unit 58 may detect the reflected light from the eyes of the viewer 60 when the brightness of the image displayed by the display unit 12 is equal to or higher than a predetermined reference value. By providing the reference value, the signal-to-noise ratio when detecting reflected light can be maintained above a certain level. Further, the position detection unit 58 may determine whether or not the light detected from the eyes of the viewer 60 is reflected light of the image based on the image displayed by the display unit 12. For example, the position detection unit 58 compares the color component of the image displayed on the display unit 12 with the color component of the light detected from the eye of the viewer 60, and determines whether the detected light is reflected light of the image. Determine whether.

  FIG. 4A is a front view of the light source unit 14 according to the present embodiment. In the light source unit 14, the right eye light source 32 and the left eye light source 34 may be alternately provided in both the row direction and the column direction. The right eye light source 32 may emit light including a first polarization component, and the left eye light source 34 may emit light including a second polarization component.

FIG. 4B is a front view of the optical system 16 according to the present embodiment. The optical system 16 is provided to face the light source unit 14, the lenses 42 are provided at a predetermined pitch in the row direction, and the lens 42 has a first position in the row direction in the column direction. And a lens array in which a row position is alternately provided with a lens at a second position shifted by a half of a predetermined pitch with respect to the first position. For example, the optical system 16 includes a plurality of lenses 42 arranged in a row direction at a predetermined pitch P ₁ and alternately arranged with a shift of P _{1/2 in} the column direction. The predetermined pitch is equal to the sum of the pitch of the right eye light source 32 and the pitch of the left eye light source 34.

  FIG. 4C is a front view of the light source device 40 according to the present embodiment. The light source device 40 may be configured by overlapping the light source unit 14 and the optical system 16. The light source device 40 includes a right eye light source 32 that emits light including a first polarization component, a left eye light source 34 that emits light including a second polarization component, a right eye light source 32, and a left eye light source. A light source unit 50 including lenses 42 that emit light emitted from the light source 34 in different directions may be arranged in a matrix in the row direction and the column direction. Each light source unit 50 may have the same structure.

That is, each light source unit 50 is arranged at a predetermined pitch in the row direction, and the position in the row direction is set at a predetermined pitch with respect to at least one of the other light source units arranged in the column direction. May be provided differently by a smaller amount. For example, the light source unit 50 are arranged in the row direction at a predetermined pitch P _1, half of the pitch P ₁ in the column direction (i.e., P _1/2) only may be arranged alternately staggered.

  By dividing the light source device 40 into light source units and arranging the light source units so as to be shifted by a predetermined pitch in the column direction, it becomes difficult for the viewer 60 to recognize the vertical boundary line of the light source unit 50. Therefore, the viewer can appreciate a stereoscopic image with reduced luminance unevenness.

  Next, a modified example of the light source device 40 according to the present embodiment will be described. 5A to 5C are diagrams illustrating the light source device 40 in this example. Members having the same functions as those of the light source device 40 described in FIGS. 4A to 4C are denoted by the same reference numerals, and description thereof is omitted.

  FIG. 5A is a front view of a modification of the light source unit 14 according to the present embodiment. In the light source unit 14 of this example, the pitch of the right eye light source 32 or the pitch of the left eye light source 34 is half the pitch of the right eye light source 32 of the light source unit 14 shown in FIG. It may be.

FIG. 5B is a front view of a modification of the optical system 16 according to the present embodiment. Pitch P ₂ of the lens array of the optical system 16 in this example may be a half of P _1.

FIG. 5C is a front view of a modified example of the light source device 40 according to the present embodiment. The light source units 50 in this example may be arranged at a pitch P ₂ that is half the pitch P ₁ in the row direction, and may be alternately arranged with a shift of half the pitch P _{2 in} the column direction.

  By setting the pitch small, the width of the lens 42 constituting the lens array is narrowed, and the width of the light source unit 50 is also narrowed according to the pitch. By doing so, it is possible to display a stereoscopic image with high resolution while reducing luminance unevenness of the image displayed on the display unit 12.

  Next, another modification of the light source device 40 according to the present embodiment will be described. 6A and 6B are diagrams illustrating the light source device 40 in this example. Members having the same functions as those of the light source device 40 described in FIGS. 4A to 4C are denoted by the same reference numerals, and description thereof is omitted.

FIG. 6A is a front view of the light source unit 14 in this example. In the light source unit 14 in this example, the right-eye light source 32 and the left-eye light source 34 are alternately provided at a half pitch of the lens 42 in the row direction, and the position in the row direction is the lens in the column direction. It may be provided by changing by an amount smaller than half of the pitch of 42. For example, alternate in the light source unit 14 of the present embodiment, the right eye light source 32 and the left-eye light source 34, in the row direction predetermined pitch P ₁ of half the pitch of the lens 42 (i.e., P _1/2) in provided, and, in the column direction, less than half the amount of the pitch P ₁ is the position in the row direction (e.g., P _1/4) are arranged offset alternately by.

FIG. 6B is a front view of the optical system 16 in this example. The optical system 16 is provided to face the light source unit 14, the lenses 42 are provided at a predetermined pitch in the row direction, and the lens 42 has a first position in the row direction in the column direction. And a lens array in which the positions in the row direction are alternately provided with the lenses 42 at the second position shifted by ¼ of a predetermined pitch with respect to the first position. For example, the optical system 16 includes a plurality of lenses 42, are arranged in the row direction at a predetermined pitch P _1, and is configured by arranging alternately shifted by P _1/4 in the column direction.

  FIG. 6C is a front view of the light source device 40 in this example. The light source device 40 in this example is configured by superimposing the light source unit 14 shown in FIG. 6A and the optical system 16 shown in FIG. 4B. In this example, the relative positions in the row direction of the light source 32 for the right eye and the light source 34 for the left eye and the lens 42 may be different depending on the position of the light source unit in the column direction. That is, the shape of the right eye light source 32 and the left eye light source 34 in one light source unit and the position of each light source in the light source unit may be different.

  For example, in FIG. 6B, the light source units 410, 430, and 450 include one right-eye light source 32 and one left-eye light source 34. On the other hand, the light source units 420, 440, and 460 include two left-eye light sources 34 having a pitch that is half the pitch of the right-eye light source 32 and one right-eye light source 32 positioned therebetween. Including.

  Since the position and shape of each light source in the light source unit are different, the light source unit in this example can irradiate light to different viewpoints according to the position in the column direction. That is, the light emitted from the light source units 410, 430, and 450 is given to the viewer 60 at the first viewpoint, and the light emitted from the light source units 420, 440, and 460 is viewed at the second viewpoint. Given to person 60.

  Here, the operation of the light source device 40 in this example will be described. When the viewer 60 is at the first viewpoint position, the control unit 54 may select the light source units 410, 430, and 450. The light output from the right-eye light source 32 and the left-eye light source 34 of the plurality of selected light source units 410, 430, 450 is refracted by the lens 42 and diffused by the diffusion plate 44. It passes through the corresponding first display area 22 and second display area 24 and is given to the viewer 60 at the first viewpoint position.

  When the viewer 60 moves in the horizontal direction, the detection unit 58 detects a change in the position of the viewer 60. The control unit 54 may receive the signal from the detection unit 58 and select the light source units 420, 440, and 460 of the light source device 40. The light output from the right-eye light source 32 and the left-eye light source 34 of the plurality of selected light source units 420, 440, 460 is refracted by the lens 42 and diffused by the diffusion plate 44, and then the display unit 12. It passes through the corresponding first display area 22 and second display area 24 and is given to the viewer 60 in the second position.

  By configuring the light source device 40 as in this example, the viewer 60 becomes difficult to recognize the vertical boundary line of the light source unit 50. In addition, even when the viewer 60 moves, a stereoscopic image can be provided for each viewpoint.

  Next, another modification of the light source device 40 according to the present embodiment will be described. 7A and 7B are diagrams illustrating the light source device 40 in this example. Members having the same functions as those of the light source device 40 described in FIGS. 4A to 4C are denoted by the same reference numerals, and description thereof is omitted.

  FIG. 7A is a front view of the optical system 16 in this example. In this example, the optical system 16 is provided to face the light source unit 14, and a plurality of microlenses 42 provided in a direction having a predetermined angle θ with respect to the column direction are provided along the row direction. A lens array may be configured. The optical system 16 may be a lenticular lens in which a plurality of microlenses 42 having a half-moon cross section are arranged obliquely.

  FIG. 7B is a front view of the light source device 40 in this example. In this example, the light source device 40 is configured by superimposing the light source unit 14 shown in FIG. 4A and the optical system 16 shown in FIG. 7A. Each micro lens 42 may function as a lens in a plurality of light source units arranged in the column direction.

  That is, in this example, the parallelogram light source units 510, 520, 530, 540, and 550 are constituted by the microlenses 42 that extend obliquely and the light source 32 and the left eye light source 34 that are arranged in the row direction. 560 is formed. The light source device 40 may be configured by arranging these light source units in a matrix in the row direction and the column direction.

  In this example, the relative positions in the row direction of the light source 32 for the right eye and the light source 34 for the left eye and the lens 42 may be different depending on the position of the light source unit in the column direction. That is, the shape of the right-eye light source 32 and the left-eye light source 34 in one parallelogram light source unit and the position of each light source in the light source unit may be different. Since the position and shape of each light source in the light source unit are different, the light source unit in this example can irradiate light to different viewpoints according to the position in the column direction.

  For example, in this example, the light source unit 510 in the first row and the light source unit 540 in the fourth row are the shape of each light source included in one light source unit and the position of each light source in one light source unit. Are the same. The light source unit 520 in the second row and the light source unit 550 in the fifth row have the same shape of each light source included in one light source unit and the position of each light source in one light source unit. The light source unit 530 in the third row and the light source unit 560 in the sixth row have the same shape of each light source included in one light source unit and the position of each light source included in one light source unit.

  Therefore, the light emitted from the light source units 510 and 540 is given to the viewer 60 at the first viewpoint position. The light emitted from the light source units 520 and 550 is given to the viewer 60 at the second viewpoint position. The light emitted by the light source units 530 and 560 is given to the viewer 60 at the third viewpoint position.

  Here, the operation of the light source device 40 in this example will be described. When the viewer 60 is in the first position, the control unit 54 may select the light source units 510 and 540. The light output from the right eye light source 32 and the left eye light source 34 of the selected plurality of light source units 510 and 540 is refracted by the lens 42 and diffused in the vertical direction by the diffusion plate 44, and then the display unit 12. The first display area 22 and the second display area 24 corresponding to each other are given to the viewer 60 at the first viewpoint position.

  When the viewer 60 moves in the horizontal direction, the detection unit 58 detects a change in the position of the viewer 60. The control unit 54 may receive the signal from the detection unit 58 and select the light source units 520 and 550 of the light source device 40. The light output from the right-eye light source 32 and the left-eye light source 34 of the plurality of selected light source units 520 and 550 is refracted by the lens 42 and diffused by the diffusion plate 44, and then corresponds to the display unit 12. It passes through the first display area 22 and the second display area 24 and is given to the viewer 60 at the second viewpoint position.

  When the viewer further moves in the horizontal direction, the detection unit 58 detects a further change in the position of the viewer 60. The control unit 54 may receive the signal from the detection unit 58 and select the light source units 530 and 560 of the light source device 40. The light output from the right-eye light source 32 and the left-eye light source 34 of the plurality of selected light source units 530 and 560 is refracted by the lens 42 and diffused by the diffusion plate 44, and then corresponds to the display unit 12. It passes through the first display area 22 and the second display area 24 and is given to the viewer 60 at the third viewpoint position.

  By configuring the light source device 40 as in this example, the viewer 60 becomes difficult to recognize the vertical boundary line of the light source unit 50. In addition, even when the viewer 60 moves, a stereoscopic image can be provided for each viewpoint.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above-described embodiment. It is apparent from the scope of the claims that the embodiments added with such changes or improvements can be included in the technical scope of the present invention.

  The order of execution of each process such as operations, procedures, steps, and stages in the apparatus, system, program, and method shown in the claims, the description, and the drawings is particularly “before” or “prior to”. It should be noted that the output can be realized in any order unless the output of the previous process is used in the subsequent process. Regarding the operation flow in the claims, the description, and the drawings, even if it is described using “first”, “next”, etc. for convenience, it means that it is essential to carry out in this order. It is not a thing.

DESCRIPTION OF SYMBOLS 10 ... Display apparatus, 12 ... Display part, 14 ... Light source part, 16 ... Optical system, 22 ... 1st display area, 24 ... 2nd display area, 32. ..Light source for right eye, 34 ... Light source for left eye, 40 ... Light source device, 42 ... Lens, 44 ... Diffusion plate, 50 ... Light source unit, 54 ... Control unit, 58... Detection unit, 60... Viewer, 122... Liquid crystal display device, 124... Polarizing plate, 126. , 144... Polarizing plate, 146... Polarizing plate, 148... Phase plate, 220... First polarizing region, 240. Region, 280 ... second phase region, 320 ... first polarization region, 340 ... second polarization region, 360 ... first phase region 380 ... Second phase region, 410 ... Light source unit, 420 ... Light source unit, 430 ... Light source unit, 440 ... Light source unit, 450 ... Light source unit, 460 ... Light source Unit: 510 ... Light source unit, 520 ... Light source unit, 530 ... Light source unit, 540 ... Light source unit, 550 ... Light source unit, 560 ... Light source unit

Claims (11)

A display device for displaying an image,
A first light source that irradiates light that includes a first polarization component, a second light source that irradiates light that includes a second polarization component, and light that is emitted by the first light source and the second light source. A light source device having light source units each including a lens that emits in a different direction in a matrix in the row direction and the column direction;
A first display region that transmits the first polarization component of incident light incident from the light source device and displays an image; and a first display region that displays the image by transmitting the second polarization component of the incident light. Two display areas, and display units arranged alternately along the column direction,
The light source units are arranged at a predetermined pitch in the row direction,
Each of the light source units is provided different in position in the row direction by an amount smaller than the predetermined pitch with respect to at least one of the other light source units arranged in the column direction. Display device. A light source unit in which the first light source and the second light source are alternately provided in both the row direction and the column direction;
The lens provided opposite to the light source unit, the lenses provided at the predetermined pitch in the row direction, and the row direction position being a first position in the column direction; The lens array further comprising: a lens array provided alternately with the lens in which the position in the row direction is a second position shifted by half of the predetermined pitch with respect to the first position. The display device described in 1. The display device according to claim 1, wherein relative positions of the first light source, the second light source, and the lens in the row direction differ according to a position of the light source unit in the column direction. The first light source and the second light source are alternately provided at a half pitch of the predetermined pitch in the row direction, and the position in the row direction is predetermined in the column direction. A light source unit provided by changing by an amount smaller than half of the pitch,
The lens provided opposite to the light source unit, the lenses provided at the predetermined pitch in the row direction, and the row direction position being a first position in the column direction; The lens array further comprising: a lens array alternately provided with the lenses in which the position in the row direction is a second position shifted by half of the predetermined pitch with respect to the first position. The display device described in 1. A light source unit in which the first light source and the second light source are alternately provided in both the row direction and the column direction;
A lens array provided facing the light source unit and extending in a direction having a predetermined angle with respect to the column direction, and a plurality of lens arrays provided along the row direction,
The display device according to claim 3, wherein each of the micro lenses functions as the lens in the plurality of light source units arranged in the column direction. A detection unit for detecting a position of a viewer who views the image;
6. The light source control unit according to claim 3, further comprising: a light source control unit configured to control light emitted from the light source unit at which position in the row direction based on the position of the viewer detected by the detection unit. A display device according to claim 1. The display device according to claim 6, wherein the detection unit irradiates the viewer with invisible light, detects reflected light from the eyes of the viewer, and detects the position of the viewer. . The display device according to claim 6, wherein the detection unit detects a position of the viewer by detecting reflected light from an eye of the viewer of an image displayed by the display unit. The display device according to claim 8, wherein the detection unit detects the reflected light from the eyes of the viewer when the brightness of an image displayed by the display unit is equal to or higher than a predetermined reference value. . The display unit displays an image for the right eye to be displayed toward the right eye of the viewer who views the image in the first display area, and displays the image for the left eye of the viewer. The display device according to claim 1, wherein a power left-eye image is displayed in the second display area. A light source device for emitting light,
A first light source that irradiates light that includes a first polarization component, a second light source that irradiates light that includes a second polarization component, and light that is emitted by the first light source and the second light source. A light source unit having lenses that respectively emit in different directions is provided in a matrix in the row direction and the column direction,
The light source units are arranged at a predetermined pitch in the row direction,
Each of the light source units is provided with a position in the row direction different from that of at least one of the other light source units arranged in the column direction by an amount smaller than the predetermined pitch. apparatus.

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