Display device

Abstract

To provide a display device capable of displaying a display image in three dimensions.SOLUTION: A display device 1 comprises: a display part 40 that has optical transparency and displays an image on a surface side; and a light-emitting part 50 that is arranged on a rear surface side opposite to the surface of the display part 40 and has a plurality of light-emitting elements 51. The light-emitting part 50 includes a polymerization portion 52 where light generated by the light-emitting elements 51 is radiated to the outside through the display part 40.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present disclosure relates to a display device. [Background technology]

[0002] Conventionally, an organic EL display panel has been known in which a display unit that displays an image and its surrounding components are arranged on the same plane, and the surrounding components are made of a material that has a light absorption rate that matches the light absorption rate of the display unit when not emitting light (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-22649 Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, in order to improve the realism and sense of reality of the image displayed on a display device, it is effective to display the image in three dimensions, but this is not mentioned in the above-mentioned conventional technology, and there is still room for improvement.

[0005] An object of the present disclosure is to provide a display device capable of displaying a display image in three dimensions. [Means for solving the problem]

[0006] The invention described in claim 1 is A display device, a display unit (40) that is optically transparent and displays an image on its front side; a light-emitting section (50, 50A) disposed on the back side opposite to the front side of the display section and having a plurality of light-emitting elements (51); The light-emitting section includes a polymerized section (52) that emits light generated by the light-emitting element to the outside through the display section. a connecting portion that is connected to the polymerization portion and that emits light generated by the light emitting element from the periphery of the display portion to the outside without passing through the display portion;The ambient image formed by the light emitted from the light emitting element is displayed over the image displayed on the display unit, thereby imparting a three-dimensional effect to the image displayed on the display unit. 、 An ambient image is an image in which the contrast of the outline area is reduced compared to the video, and the entire image is displayed with a blurred feeling. The connecting portion is provided so as to surround the entire periphery of the display portion.

[0007] In this way, by using a structure in which light emitted from the light-emitting elements of the light-emitting unit is emitted to the outside via the display unit, it is possible to emphasize the brightness and darkness of the displayed image provided by the display device and to present the displayed image in a three-dimensional manner. Note that light transparency refers to the property of transmitting at least a portion of incident light to the opposite side.

[0008] The reference symbols in parentheses attached to each component indicate an example of the correspondence between the component and the specific components described in the embodiments described below. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a schematic perspective view showing a display device according to a first embodiment. [Figure 2] FIG. 2 is a cross-sectional view taken along line II-II of FIG. [Figure 3] FIG. 3 is an enlarged view of a portion III shown in FIG. 2. [Figure 4] FIG. 2 is an explanatory diagram for explaining the operation of the display device of the first embodiment. [Figure 5] FIG. 2 is an explanatory diagram for explaining an example of a display image provided by the display device of the first embodiment. [Figure 6] FIG. 10 is a schematic cross-sectional view of a display device according to a second embodiment. [Figure 7] FIG. 7 is an enlarged view of part VII shown in FIG. [Figure 8] FIG. 10 is an explanatory diagram for explaining the operation of the display device according to the second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. In the following embodiments, parts that are the same as or equivalent to those described in the preceding embodiments will be given the same reference numerals, and their description may be omitted. Furthermore, in the embodiments, when only some of the components are described, the components described in the preceding embodiments can be applied to the remaining components. The following embodiments can be partially combined with each other, even if not specifically stated, as long as there is no particular problem with the combination.

[0011] (First embodiment) This embodiment will be described with reference to FIGS. 1 to 5. In this embodiment, an example will be described in which a display device 1 of the present disclosure is applied to a touch panel display installed on an instrument panel IP of a vehicle. The instrument panel IP is disposed at the front end of the vehicle interior. The touch panel display is used, for example, as a display for a navigation system or a display for meters.

[0012] As shown in FIG. 1, the display device 1 is installed upright on an instrument panel IP so as to face the occupant. The display device 1 is driven by power supplied from a battery (not shown) and is controlled by an HMIECU 2 arranged inside the instrument panel IP. The HMIECU 2 includes a microcomputer including a processor and a memory, and peripheral devices of the microcomputer. The memory is configured as a non-transitory tangible recording medium. HMI is an abbreviation for "Human Machine Interface." ECU is an abbreviation for "Electronic Control Unit."

[0013] The display device 1 is configured in the shape of a flat plate. The display device 1 has a display surface on one side exposed to the passenger side that displays a display image including a video and an ambient image. The one side of the display device 1 is provided with a first area AR1 that displays the video and the ambient image, and a second area AR2 that displays the ambient image.

[0014] As shown by the dashed-dotted line in Fig. 1, the first area AR1 is a rectangular area set in approximately the center of one surface of the display device 1. As shown by the dashed-dotted line in Fig. 1, the second area AR2 is a donut-shaped area that is approximately the entire one surface of the display device 1 excluding the first area AR1.

[0015] The ambient image referred to in this specification is an image in which the contrast of the outline area is reduced and the entire image is displayed with a blurred feeling. The ambient image includes, for example, an image for emphasizing the brightness of the image displayed to the occupant, and an image for decorating the display device 1 itself. The ambient image may be a still image or a moving image.

[0016] 2, the display device 1 is integrally configured as a multilayer structure in which a surface portion 10, a base portion 20, a touch panel portion 30, a display portion 40, and a light-emitting portion 50 are stacked in this order. The surface portion 10, the base portion 20, the touch panel portion 30, the display portion 40, and the light-emitting portion 50 are bonded to one another by an optically transparent adhesive 60 interposed between them.

[0017] The adhesive 60 is in the form of a film or sheet, and for example, an optical adhesive such as OCR or OCA, which has excellent light transmittance, is used. OCR is an abbreviation for "Optical Clear Resin." OCA is an abbreviation for "Optical Clear Adhesive." The adhesive 60 of this embodiment includes a first adhesive member 61, a second adhesive member 62, a third adhesive member 63, a fourth adhesive member 64, a fifth adhesive member 65, and a sixth adhesive member 66.

[0018] The skin portion 10 is the outermost layer of the display device 1. The skin portion 10 is located closest to the occupant of the display device 1. The skin portion 10 is made of a material that transmits light from the display unit 40. The skin portion 10 can be made of, for example, a translucent thermoplastic plastic such as Hytrel (registered trademark). The skin portion 10 is subjected to a low-reflection treatment to suppress reflection of external light Lo. The skin portion 10 may be made of a material other than a thermoplastic plastic. Furthermore, while FIG. 2 illustrates an example in which the outer surface of the skin portion 10 is uneven, the present invention is not limited to this. The skin portion 10 may be subjected to, for example, a smoothing treatment to smooth out the unevenness of the outer surface.

[0019] The substrate 20 is tightly adhered to the inner surface of the skin 10 opposite to the outer surface via a first adhesive member 61. The substrate 20 is made of a colorless and transparent material such as acrylic resin. The substrate 20 may also be made of a transparent material other than acrylic resin (for example, glass). This also applies to a first substrate 541 and a second substrate 561 described below.

[0020] The first adhesive member 61 is a part of the adhesive 60 described above. The first adhesive member 61 is configured to have a lower visible light transmittance than the other adhesive members 62 to 66 of the adhesive 60 excluding the first adhesive member 61. The first adhesive member 61 is colored, for example, in a smoke color or the like, so that the touch panel unit 30, the display unit 40, and the like, which are located further back than the base unit 20, are not visible through the first adhesive member 61 when the display device 1 is viewed from the skin unit 10 side. This makes it difficult to distinguish the boundary between the first area AR1 and the second area AR2.

[0021] Here, the skin part 10 and the base part 20 each have a size that includes the first region AR1 and the second region AR2, respectively. As a result, the display device 1 has no seam between the first region AR1 and the second region AR2 on its front surface, making it difficult to distinguish the boundary between the first region AR1 and the second region AR2.

[0022] The touch panel unit 30 is tightly adhered to the inner surface of the base material 20 opposite the surface of the skin 10 via a second adhesive member 62. The touch panel unit 30 is an input device for inputting information. The touch panel unit 30 is configured, for example, as a capacitance-type touch panel. The touch panel unit 30 has a transparent conductive film 31 and a metal pattern 32 provided on the edge of the conductive film 31. Note that the touch panel unit 30 is not limited to a capacitance-type touch panel, and may be configured, for example, as a pressure-sensitive touch panel.

[0023] The touch panel unit 30 has the same size as the first area AR1. The touch panel unit 30 is disposed at a position corresponding to the first area AR1. This allows the display device 1 to receive touch operations from the occupant within the range of the first area AR1. In addition, the outer surface of the pattern 32 of the touch panel unit 30 is printed in a dark color such as black so that it is not visible when the display device 1 is viewed from the skin portion 10 side. This makes it difficult to distinguish the boundary between the first area AR1 and the second area AR2.

[0024] The display unit 40 is a display that displays images. The display unit 40 is optically transparent. The display unit 40 of this embodiment is configured with an OLED panel that includes OLEDs as self-luminous elements. OLED is an abbreviation for "Organic Light-Emitting Diode." An OLED panel is also called an organic EL display panel. EL is an abbreviation for "Electro-Luminescence."

[0025] An OLED panel is composed of, for example, a laminate in which a hole injection layer, a hole transport layer, an organic light-emitting layer, an electron transport layer, an electron injection layer, etc. are sequentially stacked between a pair of electrodes. The OLED panel has OLED elements that emit light by applying a voltage between the pair of electrodes. The OLED panel is composed of three main pixels of red (R), green (G), and blue (B) that are composed of the OLED elements described above, and the main pixels are arranged in a matrix.

[0026] The display unit 40 is tightly adhered to the inner surface of the touch panel unit 30 opposite the base unit 20 via a third adhesive member 63. Like the touch panel unit 30, the display unit 40 has the same size as the first area AR1. The display unit 40 is disposed at a position corresponding to the first area AR1. The display unit 40 and the touch panel unit 30 overlap each other in a thickness direction DRt of the display device 1 via the third adhesive member 63. The thickness direction DRt of the display device 1 is the same direction as the stacking direction of the components that make up the display device 1.

[0027] A fourth adhesive member 64 is arranged around the touch panel unit 30 and the display unit 40 to bond the base unit 20 to the light-emitting unit 50 (described later). This fourth adhesive member 64 is arranged to cover the second area AR2. Because the display unit 40 is not present in the second area AR2, the image of the display unit 40 is reflected in the first area AR1, but not in the second area AR2.

[0028] The light-emitting unit 50 has a plurality of light-emitting elements 51, and emits light from the light-emitting elements 51 from the back side of the display unit 40 toward the outside. The light-emitting unit 50 is disposed on the back side of the display unit 40, opposite the front surface facing the touch panel unit 30. The light-emitting unit 50 is configured as an ambient display unit that displays information and the like by changing the light-emitting state of the light-emitting elements 51.

[0029] The light-emitting unit 50 has a size equivalent to that of each of the first region AR1 and the second region AR2. In the first region AR1, the light-emitting unit 50 is tightly adhered to the rear surface of the display unit 40 via a fourth adhesive member 64. In the second region AR2, the light-emitting unit 50 is tightly adhered to the inner surface of the base member 20 via the fourth adhesive member 64.

[0030] Specifically, the light-emitting section 50 includes a polymerization section 52 that emits light generated by the light-emitting element 51 to the outside via the display section 40, and a connection section 53 that is connected to the polymerization section 52 and emits light generated by the light-emitting element 51 to the outside from around the display section 40 without passing through the display section 40.

[0031] In this embodiment, the overlapping portion 52 is a portion of the light-emitting portion 50 that overlaps with the display portion 40 in the thickness direction DRt of the display device 1. The connection portion 53 is a portion of the light-emitting portion 50 excluding the overlapping portion 52. In other words, the connection portion 53 is a portion that does not overlap with the display portion 40 in the thickness direction DRt of the display device 1.

[0032] 3, the light-emitting section 50 is configured as a laminate in which a first mirror layer 54, a light-emitting layer 55, and a second mirror layer 56 are laminated in this order. The first mirror layer 54 and the light-emitting layer 55 are adhered to each other without any gaps by a fifth adhesive member 65. The light-emitting layer 55 and the second mirror layer 56 are adhered to each other without any gaps by a sixth adhesive member 66.

[0033] The first mirror layer 54 is a half mirror layer that transmits a portion of the light generated by the light-emitting elements 51 and reflects the remainder. The first mirror layer 54 is disposed on one surface of the light-emitting layer 55 that is closer to the display unit 40. The first mirror layer 54 has a first base material 541 made of a colorless and transparent material such as acrylic resin, and a half mirror 542 that is disposed on one surface of the first base material 541 and reflects the light generated by the light-emitting elements 51 in the light-emitting layer 55.

[0034] The light-emitting layer 55 is a layer in which a plurality of light-emitting elements 51 are arranged and which emits light. The light-emitting layer 55 has a plurality of light-emitting elements 51 arranged at intervals from one another and a main substrate 551 made of a transparent laminate substrate that covers the light-emitting elements 51. In the light-emitting layer 55, the light-emitting elements 51 are arranged in a matrix at predetermined intervals (for example, about 1 mm to 5 mm). Note that in the light-emitting layer 55, the light-emitting elements 51 may be covered with a transparent substrate other than the laminate substrate.

[0035] The light emitting element 51 has light directivity set in a direction toward the display unit 40 located in the upper layer. The light emitting element 51 is composed of an LED other than an OLED. The light emitting element 51 of this embodiment is composed of an LED that can emit light with higher brightness than an OLED. The light emitting element 51 is composed of a high-brightness LED that is used, for example, in the backlight of a liquid crystal display. This allows the light emitting unit 50 to emit light with higher brightness than the display unit 40.

[0036] The second mirror layer 56 is a full mirror layer that totally reflects light generated by the light-emitting elements 51 or light reflected by the half mirror 542. The second mirror layer 56 is arranged on the side of the light-emitting layer 55 opposite to the display unit 40. The second mirror layer 56 has a second base material 561 made of a colorless and transparent material such as acrylic resin, and a full mirror 562 that is arranged on one surface of the second base material 561 and reflects light generated by the light-emitting elements 51 in the light-emitting layer 55.

[0037] Here, the light-emitting layer 55 is interposed between the first mirror layer 54 and the second mirror layer 56. The main substrate 551 of the light-emitting layer 55 functions as a distance defining member that defines the distance between the first mirror layer 54 and the second mirror layer 56. The thickness of the main substrate 551 is set in consideration of the distance between the first mirror layer 54 and the second mirror layer 56.

[0038] In the display device 1 configured as described above, the skin portion 10, the base material portion 20, the touch panel portion 30, the display portion 40, and the adhesive 60 are optically transparent. Therefore, as shown in Fig. 4, external light Lo enters the display device 1 without being reflected on its front surface. When the display device 1 presents an image on the display portion 40 to the occupant, light emitted from the display portion 40 is emitted as image light Lm from the first region AR1 of the display device 1 via the skin portion 10, the base material portion 20, and the touch panel portion 30 to the outside.

[0039] Here, it is required to improve the sense of reality and realism of the display image displayed on the display device 1. In order to improve the sense of reality and realism of the display image, it is effective to express the display image in three dimensions.

[0040] Taking this into consideration, the display device 1 of this embodiment is provided with a light-emitting section 50 having a plurality of light-emitting elements 51 in addition to the display section 40. The light-emitting section 50 is disposed on the back side of the display section 40, and emits light emitted by the light-emitting elements 51 to the outside via the display section 40.

[0041] As shown in FIG. 4, the light emitted by the light emitting element 51 passes through the half mirror 542 as direct light Ld, and exits to the outside via the skin portion 10, the base portion 20, the touch panel portion 30, and the display portion 40.

[0042] In addition, a portion of the light from the light-emitting element 51 is reflected by the half mirror 542 and the full mirror 562. Then, a portion of the light reflected by the full mirror 562 passes through the half mirror 542 and is emitted to the outside. When the light is repeatedly reflected between the half mirror 542 and the full mirror 562, the light gradually attenuates. Furthermore, when the light is repeatedly reflected between the half mirror 542 and the full mirror 562, the imaging positions P1, P2, and P3 of the virtual image gradually shift in directions away from the light-emitting element 51. As a result, indirect light Li1, Li2, and Li3 having a gradation in directions away from the light-emitting element 51 are emitted to the outside. This indirect light Li1, Li2, and Li3 change as the position of the viewpoint EP changes.

[0043] In this way, the display device 1 of the present embodiment displays an ambient image formed by the light of the light-emitting unit 50 superimposed on the video displayed on the display unit 40. This allows the image displayed on the display unit 40 to have a three-dimensional effect.

[0044] 5 shows an example of a display image when an image including the area ahead of the vehicle is displayed on the display unit 40. When the display device 1 displays an image including the area ahead of the vehicle on the display unit 40, it causes light-emitting elements 51 to emit light at locations corresponding to three-dimensional objects OB1 and OB2 around the vehicle recognized by an image processing device (not shown). As a result, as shown in FIG. 5, ambient images Ga1 and Ga2 formed by the emission of light-emitting elements 51 are displayed over the image Gi displayed on the display unit 40, thereby imparting a three-dimensional effect to the display image displayed on the display device 1.

[0045] 5 is an example of a display image provided by the display device 1, and the display device 1 may be configured to provide a display image in another manner. For example, the display device 1 may be configured to give a three-dimensional effect to the display image by overlaying an image that emphasizes the brightness of the display image, an image that decorates the display device 1 itself, or the like, on an image displayed on the display unit 40 by emitting light from the light-emitting element 51. Also, in FIG. 5, an image is displayed in which a polygon Gp that resembles the host vehicle is superimposed on an image showing the surroundings of the host vehicle, but the polygon may or may not be displayed.

[0046] The display device 1 described above includes a light-transmitting display unit 40 that displays an image on its front side, and a light-emitting unit 50 that is disposed on the back side of the display unit 40 opposite the front side and has a plurality of light-emitting elements 51. The light-emitting unit 50 includes a polymerization site 52 that emits light generated by the light-emitting elements 51 to the outside via the display unit 40. In this way, by using a structure in which light emitted by the light-emitting elements 51 of the light-emitting unit 50 is emitted to the outside via the display unit 40, it is possible to emphasize the brightness and darkness of the display image provided by the display device 1 and to present the display image in a three-dimensional manner.

[0047] Specifically, by transmitting the light from the light-emitting unit 50 through the OLED panel and emitting it to the outside, it becomes possible to display the light from the light-emitting unit 50 through the OLED panel. This eliminates the flatness of the display surface of the display device 1, and makes it possible to make the display image provided by the display device 1 three-dimensional.

[0048] Furthermore, according to this embodiment, the following effects can be obtained.

[0049] (1) The light-emitting unit 50 of this embodiment includes a light-emitting layer 55 in which light-emitting elements 51 are arranged at intervals, and a half mirror 542 that is arranged on one side of the light-emitting layer 55 closer to the display unit 40 and reflects light emitted by the light-emitting elements 51. The light-emitting unit 50 also includes a full mirror 562 that is arranged on the opposite side of the display unit 40 from the half mirror 542 and reflects light reflected by the half mirror 542 toward the half mirror 542. Furthermore, in the light-emitting unit 50, not only does light from the light-emitting elements 51 pass directly through the half mirror 542, but light that is reflected by the half mirror 542 and the full mirror 562 and then passes through the half mirror 542 is emitted to the outside. As a result, the light-emitting unit 50 can emit light that has a gradation in the direction away from the light-emitting elements 51 to the outside.

[0050] In this way, it is possible to emit light with a gradation in the direction away from the light-emitting element 51 to the outside, so that the light from the light-emitting element 51 can be displayed three-dimensionally to the outside, making it even easier to express the displayed image three-dimensionally.

[0051] (2) The light-emitting layer 55 is disposed between the half mirror 542 and the full mirror 562. This allows light from the light-emitting element 51 to be reflected between the half mirror 542 and the full mirror 562, and light having a gradation can be emitted to the outside in a direction away from the light-emitting element 51. In addition, the light-emitting layer 55 can also function as a distance defining member that defines the distance between the half mirror 542 and the full mirror 562, allowing the light-emitting unit 50 to be made thinner.

[0052] (3) When an image is displayed on the display unit 40, the contrast between the display unit 40 and its surroundings becomes conspicuous, making the boundary between the display unit 40 and its surroundings (i.e., the edge of the display unit 40) stand out. This has a significant impact on the design of the display device 1.

[0053] Taking these factors into consideration, the light-emitting section 50 of the display device 1 includes, in addition to the overlapping section 52, a connecting section 53 that is connected to the overlapping section 52 and emits light generated by the light-emitting element 51 from around the display section 40 to the outside without passing through the display section 40.

[0054] In this way, if the structure is such that a portion of the light emitted by the light emitting element 51 can be emitted from the periphery of the display unit 40 to the outside, the edges of the display unit 40 are less noticeable when an image is displayed on the surface side of the display unit 40, compared to when light is emitted only from the display unit 40. Therefore, according to the display device 1 of the present disclosure, even when an image is displayed on the surface side of the display unit 40, the display unit 40 can easily blend in with its surroundings.

[0055] Specifically, it is possible to seamlessly combine the representation in the first area AR1, which is the display area of ​​the OLED panel, with the representation in the second area AR2, which is the rest of the display area. This makes it possible to transmit information intended to draw attention, etc. from a wider area in an easy-to-understand manner.

[0056] (4) The display unit 40 is configured with an OLED panel including OLEDs as self-emitting elements. This eliminates the need for a separate light source for displaying images, allowing the display device 1 including the display unit 40 and the light-emitting unit 50 to be compact.

[0057] (5) The light-emitting unit 50 is configured to emit light with higher brightness than the display unit 40. In this way, the light emitted by the light-emitting elements 51 of the light-emitting unit 50 makes it easier to emphasize the brightness and darkness of the display image displayed on the surface side of the display unit 40, so that the display image can be expressed three-dimensionally.

[0058] (Second embodiment) Next, a second embodiment will be described with reference to Figures 6 to 8. In this embodiment, differences from the first embodiment will be mainly described.

[0059] As shown in Figures 6 and 7, the light-emitting section 50A of this embodiment is configured as a laminate in which a first mirror layer 54, a spacing defining section 57, a second mirror layer 56, and a light-emitting layer 55 are stacked in this order.

[0060] The first mirror layer 54 and the gap defining portion 57 are bonded together without any gaps by a fifth adhesive member 65. The gap defining portion 57 and the second mirror layer 56 are bonded together without any gaps by a sixth adhesive member 66. The second mirror layer 56 and the light-emitting layer 55 are bonded together without any gaps by a seventh adhesive member 67. This seventh adhesive member 67 is included in the adhesive 60 described in the first embodiment.

[0061] The gap defining portion 57 is disposed between the first mirror layer 54 and the second mirror layer 56. The gap defining portion 57 is a spacer member for defining the gap between the first mirror layer 54 and the second mirror layer 56. The gap defining portion 57 is made of a colorless and transparent material such as acrylic resin. Note that the gap defining portion 57 may also be made of a transparent material other than acrylic resin (for example, glass).

[0062] The light-emitting layer 55 is disposed on the opposite side of the second mirror layer 56 from the gap defining portion 57. The light-emitting layer 55 is adhered without any gaps to the rear surface of the second mirror layer 56 by a seventh adhesive member 67. The basic configuration of the light-emitting layer 55 is the same as that of the first embodiment, and therefore a description thereof will be omitted.

[0063] The second mirror layer 56 is configured to transmit light generated by the light-emitting element 51 while totally reflecting light reflected by the half mirror 542. Specifically, the full mirror 562 of the second mirror layer 56 is provided with a transmissive portion 563 that transmits light from the light-emitting element 51 at a portion facing the light-emitting element 51, and a reflective portion 564 that reflects light at a portion not facing the light-emitting element 51. The transmissive portion 563 in this embodiment is configured as a through-hole that penetrates the front and back of the full mirror 562. Note that the transmissive portion 563 may be configured as a light-transmissive member instead of a through-hole.

[0064] In the display device 1 of this embodiment, as shown in FIG. 8, the light emitted by the light-emitting element 51 passes through the transparent portion 563 of the full mirror 562 and the half mirror 542 as direct light Ld, and is emitted to the outside via the skin portion 10, the base material portion 20, the touch panel portion 30, and the display portion 40.

[0065] In addition, a portion of the light that passes through the transmission portion 563 of the full mirror 562 is reflected by the half mirror 542 and the reflection portion 564 of the full mirror 562. Then, a portion of the light reflected by the reflection portion 564 of the full mirror 562 passes through the half mirror 542 and is emitted to the outside. When the light is repeatedly reflected between the half mirror 542 and the reflection portion 564 of the full mirror 562, the light gradually attenuates. Furthermore, when the light is repeatedly reflected between the half mirror 542 and the reflection portion 564 of the full mirror 562, the imaging positions P1, P2, and P3 of the virtual image gradually shift in directions away from the light-emitting element 51. As a result, indirect light Li1, Li2, and Li3 that have a gradation in the direction away from the light-emitting element 51 are emitted to the outside. This indirect light Li1, Li2, and Li3 change as the position of the viewpoint EP changes.

[0066] In this way, the display device 1 of the present embodiment displays an ambient image formed by the light of the light-emitting unit 50 superimposed on the video displayed on the display unit 40. This allows the image displayed on the display unit 40 to have a three-dimensional effect.

[0067] The rest of the configuration is the same as that of the first embodiment. The display device 1 of this embodiment can obtain the same effects as those of the first embodiment, which are achieved by a configuration common to or equivalent to that of the first embodiment.

[0068] Furthermore, according to this embodiment, the following effects can be obtained.

[0069] (1) In the display device 1, a gap defining portion 57 that defines the gap between the half mirror 542 and the full mirror 562 is provided between the half mirror 542 and the full mirror 562. The light-emitting layer 55 is disposed on the opposite side of the gap defining portion 57 with respect to the full mirror 562. The full mirror 562 is provided with a transmission portion 563 that transmits light from the light-emitting element 51 at a portion facing the light-emitting element 51, and a reflection portion 564 that reflects light at a portion not facing the light-emitting element 51.

[0070] This also allows the light from the light emitting element 51 to be reflected between the half mirror 542 and the full mirror 562, and light having a gradation in the direction away from the light emitting element 51 can be emitted to the outside.

[0071] (Other embodiments) Representative embodiments of the present disclosure have been described above, but the present disclosure is not limited to the above-described embodiments and can be modified in various ways, for example, as follows.

[0072] In the above-described embodiment, an ambient image is displayed on the surface side of the display device 1 using the light of the light-emitting element 51, but the display device 1 is not limited to this. For example, the display device 1 may be configured to form an image using the light of the light-emitting element 51 and display the image on the surface side of the display device 1. Furthermore, for example, the display device 1 may be configured to display the light of the light-emitting element 51 as a warning light or a decorative light on the surface side of the display device 1.

[0073] The display device 1 in the above-described embodiment is exemplified as a multi-layer structure in which the surface portion 10, the base portion 20, the touch panel portion 30, the display portion 40, and the light-emitting portion 50 are stacked together, but this is not limited thereto, and some of the elements of the display device 1 may be configured separately.

[0074] Although the display device 1 of the above-described embodiment has the touch panel unit 30, the touch panel unit 30 is not essential and may be omitted. Note that the display device 1 is only required to have at least the display unit 40 and the light-emitting unit 50, and elements other than the display unit 40 and the light-emitting unit 50 are not essential.

[0075] The light-emitting section 50 in the above-described embodiment preferably has a structure including a first mirror layer 54, a light-emitting layer 55, and a second mirror layer 56, but is not limited to this. The light-emitting section 50 may omit the first mirror layer 54 and the second mirror layer 56.

[0076] In addition to the overlapping portion 52, the light-emitting unit 50 in the above-described embodiment preferably has a connecting portion 53 that is connected to the overlapping portion 52 and that emits light generated by the light-emitting element 51 from the periphery of the display unit 40 to the outside without passing through the display unit 40, but is not limited to this. For example, the connecting portion 53 may be omitted from the light-emitting unit 50.

[0077] In the above-described embodiment, the display unit 40 is configured as an OLED panel including OLEDs as self-luminous elements, but the display unit 40 is not limited to this. The display unit 40 may be configured as long as it is optically transparent, for example, as a TFT liquid crystal display or the like having optical transparency.

[0078] Although the display device 1 in the above-described embodiment is configured in a plate shape, it is not limited thereto, and may be, for example, at least a portion thereof curved. Furthermore, at least a portion of the display device 1 may have a property of being deformed by an external force (i.e., flexibility).

[0079] Furthermore, although the display device 1 in the above-described embodiment is provided upright relative to the instrument panel IP, the present invention is not limited to this and may be provided in a manner such that it is embedded in an opening provided in the instrument panel IP. Furthermore, the display device 1 may be configured as an integrated part with the instrument panel IP, for example. In this case, the entire instrument panel IP may be configured as the display device 1, or a part of the instrument panel IP may be configured as the display device 1.

[0080] In the above embodiment, an example has been described in which the display device 1 of the present disclosure is applied to a touch panel display mounted on a vehicle, but the application of the display device 1 is not limited to this. The display device 1 can also be widely applied to other displays, such as displays installed indoors or outdoors.

[0081] In the above-described embodiments, it goes without saying that the elements constituting the embodiments are not necessarily essential unless they are specifically stated as essential or are clearly considered essential in principle.

[0082] In the above-described embodiments, when numerical values ​​such as the number, values, amounts, ranges, etc. of components of the embodiments are mentioned, they are not limited to the specific numbers unless they are specifically stated as essential or are clearly limited to a specific number in principle.

[0083] In the above-described embodiments, when referring to the shapes, positional relationships, etc. of components, etc., the shapes, positional relationships, etc. are not limited to those unless otherwise specified or when they are fundamentally limited to specific shapes, positional relationships, etc. [Explanation of symbols]

[0084] 1 Display device 40 Display section 50, 50A light emitting part 51 Light-emitting element 52 Polymerization site

Claims

1. A display device, a display unit (40) that is optically transparent and displays an image on its front side; a light-emitting section (50, 50A) disposed on a rear surface side opposite to the front surface of the display section and having a plurality of light-emitting elements (51); The light-emitting unit includes a polymerization portion (52) that emits light generated by the light-emitting element to the outside via the display unit, and a connection portion that is connected to the polymerization portion and emits light generated by the light-emitting element from the periphery of the display unit to the outside without passing through the display unit, and an ambient image formed by the light emitted by the light-emitting element is displayed over the video displayed on the display unit, thereby imparting a three-dimensional effect to the display image displayed on the display unit. The ambient image is an image in which the contrast of the outline area is reduced relative to the video, and the image is displayed with a blurred overall appearance, The display device, wherein the connection portion is provided so as to surround the entire periphery of the display unit.

2. The display device according to claim 1 , wherein the display unit is configured with an OLED panel including OLEDs as self-luminous elements.

Images