WO2017018398A1 - Display device - Google Patents

Abstract

Provided is a display device comprising the following: an image display panel (30) for displaying images; an exposure light-transmitting plate (40) that is disposed as a curved plate exposed to the visible side, and that allows images to pass therethrough; and reflecting parts (80, 280, 380, 480, 580, 680) that, in a region (AR) between the image display panel and the exposure light-transmitting plate, reflect image light between the outer edges of the image display panel and the exposure light-transmitting plate. Moreover, the display device comprises: the image display panel (30) which includes a display surface part (32) for performing real-image display of an image containing an information display image (Ii); and the reflecting parts (80) which are disposed along the edges of the display surface part, reflect light from a reflection target region (Arv) of the display surface part, and thereby perform virtual image display outside of the display surface part by inverting the image of the reflection target region. The information display image portion of the image is subjected to real-image display outside of the reflection target region of the display surface part.

Description

Display device Cross-reference of related applications

This application is based on Japanese Application No. 2015-148805 filed on July 28, 2015 and Japanese Application No. 2015-172145 filed on September 1, 2015. Is used.

The present disclosure relates to a display device that displays an image.

Conventionally, display devices are known. For example, in the display device disclosed in Patent Document 1, the image display panel for displaying an image is formed in a curved surface shape.

As a vehicular display device mounted on a vehicle, a vehicular display device disclosed in Patent Document 2 is arranged along an edge of the display surface portion, an image display panel having a display surface portion for displaying an image, and a display surface portion. And a reflection part that reflects light from the device. The reflection part reflects light from the display surface part to the outside of the eye range on the driver's seat side. That is, the light reflected by the reflecting portion cannot be viewed from the eye range on the driver's seat side.

JP 2003-295164 A Japanese Patent No. 4504934

As described above, in recent years, demand for display using curved surfaces is increasing due to, for example, design requirements. However, as in Patent Document 1, when the image display panel itself is formed in a curved shape, the panel itself has to have a special specification, and lacks versatility. Therefore, the present inventor has conceived that a curved surface display can be realized in a pseudo manner by using an exposed translucent plate formed in a curved plate shape exposed on the viewing side.

However, in the conceived configuration, an area corresponding to a curved surface may be generated between the image display panel and the exposed translucent plate. In the display device in which this region is generated, when the viewer visually recognizes the image through the exposed translucent plate, a step on the outer peripheral side is confirmed through this region. The presence of an image display panel is recognized. Therefore, the curved surface feeling was lowered and the appearance was deteriorated.

In Patent Document 2, the light reflected by the reflecting portion is not shown. On the contrary, the present inventor uses the light reflected by the reflecting portion to improve the appearance of the vehicle display device. Inspired to use. For example, the image of the reflection target area in the display surface portion is inverted by the reflection portion and displayed as a virtual image outside the display surface portion, so that the display surface portion can be seen as if it has been expanded.

However, in the configuration in which the image is inverted and displayed by the reflection unit, when the information display image for displaying information is reflected in the inverted virtual image (hereinafter referred to as the inverted image), the viewer is confused by the inverted image. End up. As a result, the visibility of the display content deteriorates, and there is a concern that the information cannot be immediately understood or misunderstood.

The first object of the present disclosure is to provide a display device having a good appearance.

A second object of the present disclosure is to provide a display device with good display content visibility.

The display device according to the first aspect of the present disclosure includes an image display panel that displays an image, an exposed light-transmitting plate that is formed in a curved plate shape that is exposed to the viewing side, and that transmits the image, the image display panel, and the exposure. A reflection portion that reflects light of an image is provided between the outer edge portion of the image display panel and the exposed light transmission plate in a region between the light transmission plates.

According to the above display device, the reflection portion is provided between the outer edge portion of the image display panel and the exposed light-transmitting plate having a curved plate shape. Here, when the image display panel displays an image, when the light of the image passes through the region between the image display panel and the exposed translucent plate, it can be reflected by the reflecting portion on the outer peripheral side. Therefore, when the viewer visually recognizes the image through the exposed translucent plate, it is difficult to confirm the step on the outer peripheral side through this region due to the light reflected by the reflecting portion. At the same time, it is visually recognized on the outer peripheral side as if the screen is expanded by the reflected image. Thus, the display device with good appearance can be provided by sufficiently exhibiting the curved surface feeling of the exposed translucent plate.

A display device according to a second aspect of the present disclosure is a display device mounted on a vehicle, and includes an image display panel having a display surface portion that displays an image including an information display image and an edge portion of the display surface portion. And a reflection unit that inverts an image of the reflection target region and displays a virtual image outside the display surface unit by reflecting light from the reflection target region in the display surface unit. The information display image in the image is displayed as a real image outside the reflection target area in the display surface portion.

According to the above display device, in the display device mounted on the vehicle, the display surface portion of the image display panel displays the image as a real image. Furthermore, the reflection part is arrange | positioned at the edge part of the display surface part. This reflection part reflects the light from a reflection object area | region among display surface parts. As a result, the reverse image is displayed as a virtual image outside the display surface, so that the display can be expanded.

Here, since the information display image of the image is displayed outside the reflection target area in the display surface portion, even if the reflection part reflects light from the reflection target area, the information display image is reflected on the inverted image of the information display image. Is suppressed. Accordingly, by avoiding the viewer from being confused by the inverted image, the visibility of the display content is improved, and the information is easily understood accurately.

The above and other objects, features and advantages of the present disclosure will become more apparent from the following detailed description with reference to the accompanying drawings. In the drawing
FIG. 1 is a schematic diagram illustrating a mounting state of a display device (or a vehicle display device) according to a first embodiment on a vehicle. FIG. 2 is a perspective view of the display device according to the first embodiment. FIG. 3 is an exploded perspective view of the display device according to the first embodiment. FIG. 4 is a cross-sectional view showing a part of a cross section taken along line IV-IV in FIG. FIG. 5 is an enlarged view showing an enlarged portion V of FIG. FIG. 6 is a diagram for explaining a reflected image in the first embodiment. FIG. 7 is a diagram for explaining a method of manufacturing the display device according to the first embodiment. FIG. 8 is a diagram corresponding to FIG. 5 in the second embodiment, FIG. 9 is a diagram for explaining a method of manufacturing the display device according to the second embodiment. FIG. 10 is a diagram corresponding to FIG. 5 in the third embodiment, FIG. 11 is a diagram corresponding to FIG. 5 in the fourth embodiment, FIG. 12 is a diagram corresponding to FIG. 5 in the fifth embodiment, FIG. 13 is a diagram corresponding to FIG. 5 in the sixth embodiment, FIG. 14 is a diagram further enlarging and showing a part of the reflecting surface of FIG. FIG. 15 is a diagram corresponding to FIG. 5 in the second modification, and FIG. 16 is a diagram corresponding to FIG. 6 in the third modification, FIG. 17 is a diagram schematically illustrating a reflection target area and a display hidden area in the seventh embodiment. FIG. 18 is a diagram showing an encircled portion by a one-dot chain line in FIG. 17, and is a diagram showing an example of display, FIG. 19 is a diagram illustrating an encircled portion by a one-dot chain line in FIG. 17, and is a diagram illustrating an example of display. FIG. 20 is a diagram schematically showing the relationship between the image and the reverse image in the display of FIG. FIG. 21 is a diagram illustrating an encircled portion by a one-dot chain line in FIG. 17, and is a diagram illustrating an example of display. FIG. 22 is a diagram schematically showing the relationship between the image and the reverse image in the display of FIG. FIG. 23 is a diagram illustrating an encircled portion by a one-dot chain line in FIG. 17, and is a diagram illustrating an example of display, and FIG. 24 is a diagram schematically showing the relationship between the image and the reverse image in the display of FIG.

Hereinafter, a plurality of embodiments of the present disclosure will be described with reference to the drawings. In addition, the overlapping description may be abbreviate | omitted by attaching | subjecting the same code | symbol to the corresponding component in each embodiment. When only a part of the configuration is described in each embodiment, the configuration of the other embodiment described above can be applied to the other part of the configuration. In addition, not only combinations of configurations explicitly described in the description of each embodiment, but also the configurations of a plurality of embodiments can be partially combined even if they are not explicitly specified unless there is a problem with the combination. .

(First embodiment)
Hereinafter, a first embodiment of the present disclosure will be described with reference to FIGS. 1 to 7.

The display device (or vehicle display device) 100 according to the first embodiment of the present disclosure is mounted on the vehicle 1. Specifically, the display device 100 shown in FIGS. 1 and 2 is provided in the center portion 3 corresponding to the space between the driver seat 4a and the passenger seat 4b arranged in the left-right direction DH of the vehicle 1 in the instrument panel 2 of the vehicle 1. is set up. For example, the vehicle display device 100 can display an image using the image display panel 30 toward the viewing side where the driver seated in the driver's seat 4a and the passenger seated in the passenger seat 4b are located. It has become. In the vehicle 1, eyelips ELP are set for each of the right eye and the left eye based on an eye range that statistically represents the distribution of the positions of the eyes of the driver (see JIS D0021: 1998). The display device 100 performs display so that a driver whose eyes are located in such an iris ELP and an occupant on the passenger seat 4b can easily see.

In addition, the vertical direction DV of the vehicle 1 in the present embodiment indicates a direction along the direction of gravity when the vehicle 1 travels on a flat ground or stops on a flat ground. The left-right direction DH of the vehicle 1 is a direction orthogonal to the up-down direction DV of the vehicle 1 and indicates the width direction of the vehicle 1.

Specifically, the display device 100 is installed in an intermediate portion that is intermediate to the driver's seat 4a and the passenger seat 4b arranged side by side in the instrument panel 2 of the vehicle 1. The display device 100 can display an image toward the viewing side where the occupant of the vehicle 1 as a viewer is located. The display device 100 also functions as an operation device that can be touch-operated by an occupant of the vehicle 1 as an operator.

Specifically, examples of the image displayed by the display device 100 include various operation images such as a button image related to air conditioning in a vehicle interior, a button image related to a navigation function, and a button image related to an audio function. In addition, examples of the displayed image include various images associated with various icon operations such as a display image of air conditioning setting, a map image in a navigation function, and a moving image such as a television broadcast or a movie. Further, for example, information such as a vehicle state such as a vehicle speed and fuel consumption, and an e-mail may be displayed as an image.

Also, various icons are touch-operated to set and control, for example, air conditioning, navigation functions, audio functions, and the like.

Such a display device 100 will be described in detail below with reference to FIGS. As shown in FIG. 3, the display device 100 mainly includes a control unit 20, an image display panel 30, an exposed translucent plate 40, a touch detection unit 50, a holding frame 60, and a translucent medium unit 70.

The control unit 20 includes a touch circuit 24 and a main circuit 26 mounted on the circuit board 22. The touch circuit 24 includes a CPU, a memory, and the like, and is a control circuit that controls the electrically connected touch detection unit 50 and includes an electrostatic IC. The touch circuit 24 processes the detection signal input from the touch detection unit 50 and outputs the detection signal to the electrically connected main circuit 26. The main circuit 26 includes a CPU, a memory, and the like, and is a control circuit that controls the electrically connected image display panel 30. The main circuit 26 outputs an image display signal to the image display panel 30 based on an input signal from an external device capable of communication or a detection signal from the touch detection unit 50, thereby causing the image display panel 30 to Control the display content of the image. The circuit board 22 is fastened to the back side of the image display panel 30 by screws 12 and spacers 14 together with the back side housing 10.

The image display panel 30 is a flat display element that displays an image, as shown in FIGS. 3 to 5, and is arranged on the viewing side with respect to the circuit board 22. In the present embodiment, the image display panel 30 is a liquid crystal panel using a thin film transistor (TFT), and an active matrix having a display surface portion 32 formed by a plurality of display pixels arranged in a two-dimensional direction. A liquid crystal panel is used.

More specifically, the display surface portion 32 has a rectangular shape having a display surface 32a on the viewing side. A pair of polarizing plates and a liquid crystal layer sandwiched between the pair of polarizing plates are stacked inside the display surface portion 32. The pair of polarizing plates are arranged so that their polarization axes are substantially perpendicular to each other. In the liquid crystal layer, the polarization direction of light incident on the liquid crystal layer can be rotated according to the applied voltage by applying a voltage for each display pixel. In this way, it is possible to control the transmittance of incident light for each display pixel.

A backlight is disposed on the back side opposite to the viewing side with respect to the display surface portion 32, and the light incident on the display surface portion 32 from the backlight is controlled in transmittance, whereby the image display panel. 30 is configured to display an image. Here, a diffusion film is disposed on the viewing side in the display surface portion 32, and light of the image is diffused and emitted from each pixel in each direction on the viewing side with a predetermined distribution.

Further, the image display panel 30 has a surrounding frame portion 34. The surrounding frame portion 34 is formed by processing a metal plate such as iron or aluminum by pressing or the like, and surrounds the display surface portion 32 and the backlight from the outer peripheral side. Since the surrounding frame portion 34 surrounds the display surface portion 32, the display surface portion 32 is arranged on the inner peripheral side on the surface facing the viewing side of the image display panel 30, that is, on the surface facing an exposed translucent plate 40 described later. On the outer peripheral side of the display surface portion 32, the surrounding frame portion 34 is disposed so as to protrude toward the exposed translucent plate 40 with respect to the display surface 32a.

The rectangular image display panel 30 is arranged with the longitudinal direction along the vertical direction DV of the vehicle 1 and the short side direction along the horizontal direction DH of the vehicle 1 (see FIG. 2).

Here, it is assumed that the outer edge portion of the image display panel 30 in the present embodiment includes the outer peripheral portion of the display surface portion in addition to the surrounding frame portion. In many cases, a button image or an image indicating information is not displayed on the outer peripheral portion of the display surface portion, and a background image or nothing is displayed.

As shown in FIGS. 2 to 5, the exposed translucent plate 40 is a translucent translucent plate formed in a rectangular plate shape by, for example, acrylic resin or polycarbonate resin. In this embodiment, the exposed translucent plate is smoke-like. The transmittance is 70 to 80% due to coloring. The thickness of the exposed translucent plate 40 is substantially uniform at each location. Further, a hard coat layer for preventing scratches is formed on the surface of the exposed translucent plate 40 on the viewing side, and a mask printing layer 42 having a black light-shielding property is formed on the outer edge portion of the exposed translucent plate 40. Has been. The exposed translucent plate 40 is disposed on the most visible side in the display device 100 and is formed in a curved plate shape that is exposed on the visible side. Thus, the exposed translucent plate 40 transmits the image light from the image display panel 30 to the viewing side.

Similar to the image display panel 30, the rectangular exposed translucent plate 40 is arranged with the longitudinal direction along the vertical direction DV of the vehicle 1 and the short side direction along the horizontal direction DH of the vehicle 1. (See FIG. 2). Here, the exposed translucent plate 40 is formed in a concave shape that is recessed toward the image display panel 30 side (that is, the back side).

The touch detection unit 50 is a projected capacitive touch switch as shown in FIGS. 3 to 5, and the touch switch 52 is formed in a translucent film shape. The touch detection unit 50 is bonded to the back side of the exposed translucent plate 40 via an optical transparent adhesive sheet (Optically Clear Adhesive, OCA). The touch detection unit 50 detects a touch operation on the exposed translucent plate 40 with the touch switch 52. Specifically, the touch detection unit 50 detects the change in capacitance by the touch circuit 24 when an operator's finger approaches or contacts the exposed translucent plate 40, so that the position of the finger on the exposed translucent plate 40 is detected. Can be specified.

Between the image display panel 30 and the exposed translucent plate 40 and the touch detection unit 50, the exposed translucent plate 40 is formed in a curved plate shape with respect to the planar image display panel 30. Thus, an area AR is formed as shown in FIG.

As shown in FIGS. 2 to 5, the holding frame 60 is a rectangular annular opening frame formed of, for example, black synthetic resin and having a large opening in the center in accordance with the shape of the image display panel 30. The holding frame 60 is opened by surrounding the area AR from the outer peripheral side. At the same time, the viewing-side end portion 60a of the holding frame 60 holds the outer edge portion of the exposed translucent plate 40 from the back side. Thereby, the positions of the exposed translucent plate 40 and the image display panel 30 are fixed.

Here, the height dimension HF of the holding frame 60 from the display surface 32a of the image display panel 30 to the viewing side end 60a is formed in accordance with the step HD on the outer peripheral side caused by the curved surface of the exposed translucent plate 40. However, it differs depending on the location. Specifically, since the exposed translucent plate 40 is bent in the longitudinal direction, the height dimension HF increases as the position deviates from the central portion in the longitudinal direction. And the height dimension HF is the maximum in the edge part of a longitudinal direction. In addition, even in the central portion 60b where the height dimension HF is minimized, a height dimension HF of a predetermined level or more is secured in accordance with the formation of a light transmitting medium portion 70 described later, and the image display panel 30 and the exposed light transmitting light are transmitted. The plates 40 are separated from each other without direct contact.

As shown in FIGS. 3 to 5, the light transmitting medium portion 70 is formed in an area AR surrounded by the holding frame 60 and transmits the image light from the image display panel 30. The translucent medium part 70 includes an opposing wall 72 and a medium filling layer 74.

The opposing wall 72 is an outer edge wall formed with translucency by, for example, an acrylic resin having a relative refractive index of 1.49. The opposing wall 72 is a rectangular ring that is greatly opened in the center along the opposing portion of the area AR that faces the holding frame 60 between the outer edge portion of the image display panel 30 and the outer edge portion of the exposed translucent plate 40. It has become. At the same time, the opposing wall 72 is provided in contact with the outer peripheral portion of the display surface portion 32 of the image display panel 30 and the outer edge portion of the exposed translucent plate 40, thereby exposing the image display panel 30 and the entire periphery. The space between the translucent plate 40 is closed. The facing wall 72 is provided so as to extend substantially perpendicular to the display surface 32a. A gap 88 is provided between the holding frame 60 and the opposing wall 72 over the entire circumference.

The medium filling layer 74 is a translucent medium layer filled in the area AR on the inner peripheral side with respect to the opposing wall 72. The medium filling layer 74 is filled with a transparent optical resin (Optically Clear Resin, OCR) as a translucent medium. For example, a silicon resin having a relative refractive index of about 1.4 to 1.5 is used. Has been. The medium filling layer 74 is filled in a solid state without substantial gaps in the area AR surrounded by the image display panel 30, the exposed translucent plate 40, and the opposing wall 72, so that the image display panel 30 side is filled. The contact interfaces 74a, 74b, and 74c are formed on the exposed translucent plate 40 side and the opposing wall 72, respectively.

The translucent medium part 70 is provided with a reflecting surface 80 as a reflecting part shown in an enlarged manner in FIG. 5 on an opposing wall 72 formed to include the opposing part. Specifically, the reflecting surface 80 is provided as an interface with the gap 88 in the facing wall 72.

The reflection surface 80 is provided so that the tangential direction intersects with the display surface 32a. Specifically, since the opposing wall 72 extends substantially perpendicular to the display surface 32a, the reflecting surface 80 is also substantially perpendicular to the display surface 32a. Further, due to the arrangement of the facing wall 72 described above, the reflecting surface 80 is provided in contact with the display surface 32 a of the display surface portion 32 on the inner peripheral side of the surrounding frame portion 34 in the outer edge portion of the image display panel 30. .

The reflection surface 80 is configured to mirror-reflect the image light from the image display panel 30 between the outer edge portion of the image display panel 30, the exposed translucent plate 40, and the outer edge portion in the area AR. That is, since the refractive index difference ΔNmw between the medium filling layer 74 and the opposing wall 72 is small, the reflectance of the image light is low at the contact interface 74c. On the other hand, since the refractive index difference ΔNwa between the facing wall 72 and the gap 88 filled with air is larger than ΔNmw, the reflectance of the image light is high. Therefore, as shown in FIG. 6, when the area AR is viewed through the exposed translucent plate 40, a reflection image Irv formed by reversing the image Id at the end portion by reflection of the reflection surface 80 is visually recognized. Also in FIG. 4, the light of the image reflected by the reflecting surface 80 is schematically shown by a dashed arrow.

Here, a method for manufacturing such a display device 100 will be briefly described below, particularly focusing on the formation of the light transmitting medium portion 70.

First, the exposed translucent plate 40 is arranged on the jig 90 having a shape along the curved surface of the exposed translucent plate 40 so that the back side is up. Next, the touch switch 52 of the touch detection unit 50 is bonded to the back side of the exposed translucent plate 40 using an optical transparent adhesive sheet. Further, an opposing wall 72 is disposed on the back side of the exposed translucent plate 40 to which the touch detection unit 50 is bonded. Next, a liquid optical transparent resin is poured into the inside of the facing wall 72 and applied (see FIG. 7). The portion where the optical transparent resin is exposed is covered with the image display panel 30 before the optical transparent resin is cured. Next, the optical transparent resin is cured. As a method of curing, there are a method of curing an optical transparent resin mixed with two liquids over time, a method of curing by irradiation with ultraviolet rays, a method of curing by heat, etc., depending on the type of optical transparent resin. is there. The medium filling layer 74 is formed by curing. Next, the holding frame 60 is fitted from the outer peripheral side. In this way, the display device 100 is manufactured.

(Function and effect)
The operational effects of the first embodiment described above will be described below.

According to the first embodiment, the reflecting surface 80 as a reflecting portion is provided between the outer edge portion of the image display panel 30 and the curved transparent plate-shaped exposed translucent plate 40. Here, when the image display panel 30 displays an image, the light of the image is reflected by the reflecting surface 80 on the outer peripheral side when passing through the area AR between the image display panel 30 and the exposed translucent plate 40. obtain. Therefore, when the viewer visually recognizes the image through the exposed translucent plate 40, it is difficult to confirm the step on the outer peripheral side through the area AR due to the light reflected by the reflecting surface 80. At the same time, on the outer peripheral side, the screen is visually recognized by the reflected image Irv. Thus, the display device 100 with good appearance can be provided by sufficiently exhibiting the curved surface feeling of the exposed translucent plate 40.

Further, according to the first embodiment, the holding frame 60 as the opening frame surrounds the image display panel 30 and the exposed translucent plate 40 from the outer peripheral side. Here, when the image display panel 30 displays an image, when the light of the image passes through the area AR between the image display panel 30 and the exposed translucent plate 40, on the outer peripheral side, it is opposed to the holding frame 60. The light of the image can be reflected by the reflecting surface 80 provided at the location. Accordingly, when the viewer visually recognizes the image through the exposed translucent plate 40, it is difficult to visually recognize the holding frame 60 on the outer peripheral side. Thus, the display device 100 with good appearance can be provided by sufficiently exhibiting the curved surface feeling of the exposed translucent plate 40.

Further, according to the first embodiment, the translucent medium part 70 formed so as to include the facing portion in the area AR surrounded by the holding frame 60 is configured to transmit the light of the image. By providing the reflecting surface 80 in such a light transmitting medium part 70, the light of an image can be easily reflected in the opposing location. Thus, the display device 100 with good appearance can be provided by sufficiently exhibiting the curved surface feeling of the exposed translucent plate 40.

Further, according to the first embodiment, the facing wall 72 is formed along the facing portion and closing the space between the image display panel 30 and the exposed translucent plate 40. By providing the reflecting surface 80 on the facing wall 72 as described above, the reflecting surface 80 can block the area AR between the image display panel 30 and the exposed translucent plate 40 at the facing position. It is more difficult to visually recognize the holding frame 60 through the AR. Thus, the display device 100 with good appearance can be provided by sufficiently exhibiting the curved surface feeling of the exposed translucent plate 40.

In addition, according to the first embodiment, the translucent medium portion 70 is a medium layer that is filled on the inner peripheral side with respect to the facing wall 72 and that forms the contact interface 74 c with the facing wall 72. Have Such a medium-filled layer 74 can reduce the refractive index difference between the area AR between the image display panel 30 and the exposed translucent plate 40 and the adjacent member, so that external light or the like is incident thereon. In this case, unintended reflection of outside light can be suppressed. For this reason, the display device 100 with good appearance can be provided.

Further, according to the first embodiment, a gap 88 is provided between the holding frame 60 and the facing wall 72, and the reflecting surface 80 is provided with smoothness as an interface with the gap 88. In such a reflective surface 80, the reflectance of the image light can be increased by utilizing the refractive index difference between the facing wall 72 and the gap 88, and the reflective surface 80 is formed by separating the holding frame 60 from the reflective surface 80. It is possible to avoid the holding frame 60 being reflected in 80. Therefore, it becomes more difficult to visually recognize the holding frame 60 through the area AR between the image display panel 30 and the exposed translucent plate 40, and the display device 100 having a good appearance can be provided.

Further, according to the first embodiment, the image display panel 30 includes, on the exposed translucent plate 40 side, a display surface portion 32 formed by arranging display pixels, and a surrounding frame portion 34 surrounding the display surface portion 32 from the outer peripheral side. Have. Here, the reflection surface 80 is provided on the inner peripheral side of the surrounding frame portion 34 and connected to the display surface portion 32. Thus, even when the display surface portion 32 has the surrounding frame portion 34, the enclosure through the region AR between the image display panel 30 and the exposed translucent plate 40 by the reflection surface 80 in contact with the display surface portion 32. Visual recognition of the frame part 34 becomes difficult. Therefore, it is possible to provide the display device 100 with good appearance.

Further, according to the first embodiment, the exposed translucent plate 40 is formed in a concave shape that is recessed toward the image display panel 30 side. Since the exposed translucent plate 40 is concave, the reflective surface 80 as in the present embodiment is applied when a step HD between the image display panel 30 and the exposed translucent plate 40 is likely to occur on the outer peripheral side. As a result, the degree of the effect of suppressing the confirmation of the level difference HD becomes remarkable.

Further, according to the first embodiment, the touch detection unit 50 that detects a touch operation on the exposed translucent plate 40 is provided. Since the curved surface feeling of the curved transparent plate-like exposed translucent plate 40 is sufficiently exhibited by the reflecting surface 80, and the touch operation to the exposed translucent plate 40 becomes possible, the curved surface feeling can be further enhanced.

(Second Embodiment)
As shown in FIG. 8, the second embodiment of the present disclosure is a modification of the first embodiment. The second embodiment will be described with a focus on differences from the first embodiment.

The light transmission medium part 270 in the display device (or vehicle display device) 200 of the second embodiment is formed in the area AR surrounded by the holding frame 60, as in the first embodiment, and from the image display panel 30. The light of the image is transmitted. Here, the translucent medium part 270 has a medium filling layer 274.

The medium filling layer 274 is a light-transmitting medium layer that is provided in an area AR surrounded by the holding frame 60 so as to include an opposing portion facing the holding frame 60 and filled with a medium in a solid state. As the medium of the medium filling layer 274, for example, the same silicon resin as that in the first embodiment is used. The medium filling layer 274 is formed in a rectangular shape by including opposing portions over the entire circumference. Between the holding frame 60 and the medium filling layer 274, a gap 288 is provided over the entire circumference.

On the other hand, with respect to the image display panel 30 and the exposed translucent plate 40, the medium filling layer 274 is filled with substantially no gap, so that the image display panel 30 side and the exposed translucent plate 40 side are connected. Contact interfaces 274a and 274b are formed, respectively.

The translucent medium part 270 is provided with a reflection surface 280 in the medium filling layer 274. Specifically, the reflecting surface 280 is provided with smoothness as an interface with the gap 288 in the medium filling layer 274. The reflective surface 280 is substantially perpendicular to the display surface 32a, as in the first embodiment.

Here, a method of manufacturing such a display device 200 will be briefly described below, particularly focusing on the formation of the light transmitting medium portion 270.

First, the exposed translucent plate 40 is arranged on the jig 90 having a shape along the curved surface of the exposed translucent plate 40 so that the back side is up. Next, the touch switch 52 of the touch detection unit 50 is bonded to the back side of the exposed translucent plate 40 using an optical transparent adhesive sheet. Here, a rectangular annular mold 291 that matches the shape of the medium filling layer 274 is disposed along the back side of the exposed translucent plate 40 to which the touch detection unit 50 is bonded. Next, a liquid optical transparent resin is poured inside the mold 291 and applied (see FIG. 9). The portion where the optical transparent resin is exposed is covered with the image display panel 30 before the optical transparent resin is cured. Next, the optical transparent resin is cured. The medium filling layer 274 is formed by curing. Thereafter, the mold 291 is pulled out by sliding to the outer peripheral side. Next, the holding frame 60 is fitted from the outer peripheral side. In this way, the display device 200 is manufactured safely.

Also in the second embodiment, the reflection surface 280 as a reflection part reflects the light of the image between the outer edge part of the image display panel 30 and the exposed translucent plate 40. Therefore, there exists an effect according to 1st Embodiment about a common structure.

Further, according to the second embodiment, the translucent medium portion 270 includes the medium filling layer 274 filled in the area AR surrounded by the holding frame 60 including the opposite portions. Such a medium-filled layer 274 can reduce the difference in refractive index between the area AR between the image display panel 30 and the exposed translucent plate 40 and the adjacent member. In this case, unintended reflection of outside light can be suppressed.

Here, a gap 288 is provided between the holding frame 60 and the medium filling layer 274, and the reflecting surface 280 is provided with smoothness as an interface with the gap 288 in the medium filling layer 274. In such a reflective surface 280, the reflectance of the image light can be increased by utilizing the difference in refractive index between the medium filling layer 274 and the gap 288, and the reflection can be achieved by separating the holding frame 60 from the reflective surface 280. It is possible to avoid the holding frame 60 being reflected on the surface 280. Therefore, it becomes more difficult to visually recognize the holding frame 60 through the area AR between the image display panel 30 and the exposed translucent plate 40. As described above, the display device 200 having a good appearance can be provided.

(Third embodiment)
As illustrated in FIG. 10, the third embodiment of the present disclosure is a modification of the first embodiment. The third embodiment will be described with a focus on differences from the first embodiment.

The light transmission medium portion 370 in the display device (or vehicle display device) 300 according to the third embodiment is formed in an area AR surrounded by the holding frame 60, as in the first embodiment, and from the image display panel 30. The light of the image is transmitted. Here, the translucent medium part 370 includes an interposing translucent plate 376.

The interposed translucent plate 376 is a translucent plate interposed between the image display panel 30 and the exposed translucent plate 40 in the area AR surrounded by the holding frame 60. The interposed translucent plate 376 is formed with translucency, for example, using acrylic resin or polycarbonate resin, so that the image light from the image display panel 30 is transmitted. The surface of the interposed translucent plate 376 on the side of the image display panel 30 has a flat shape that matches the image display panel 30, and the surface of the exposed translucent plate 40 side matches the curved surface of the exposed translucent plate 40. It is curved. The thickness of the interposed translucent plate 376 is set to be smaller than the height dimension HF of the holding frame 60. As a result, the interposed translucent plate 376 is bonded to the image display panel 30 and the exposed translucent plate 40 with sheet layers 377a and 377b formed by being bonded using optical transparent adhesive sheets, respectively. Have.

The side end portion 376a of the interposed translucent plate 376 reaches between the outer edge portion of the image display panel 30 and the outer edge portion of the exposed translucent plate 40, and is formed along the opposite portion over the entire circumference. Yes. Thereby, the insertion translucent plate 376 has a rectangular shape. Between the holding frame 60 and the side end portion 376a, a gap 388 is provided over the entire circumference.

The translucent medium part 370 is provided with a reflection surface 380 at the side end part 376a. Specifically, the reflecting surface 380 is provided with smoothness as an interface with the gap 388 in the side end portion 376a. The reflective surface 380 is substantially parallel to the display surface 32a, as in the first embodiment.

Here, a method for manufacturing such a display device 300, particularly the formation of the light transmitting medium portion 370, will be briefly described below.

First, the exposed translucent plate 40 is arranged on the jig 90 having a shape along the curved surface of the exposed translucent plate 40 so that the back side is up. Next, the touch switch 52 of the touch detection unit 50 is bonded to the back side of the exposed translucent plate 40 using an optical transparent adhesive sheet. Further, an interpenetrating translucent plate 376 is bonded to the back side of the exposed translucent plate 40 to which the touch detection unit 50 is bonded using an optical transparent adhesive sheet. Further, the image display panel 30 is bonded to the back side of the interposed translucent plate 376 using an optical transparent adhesive sheet. Next, the holding frame 60 is fitted from the outer peripheral side. In this way, the display device 300 is manufactured.

Also in the third embodiment as described above, the reflection surface 380 as a reflection portion reflects the light of the image between the outer edge portion of the image display panel 30 and the exposed translucent plate 40. Therefore, there exists an effect according to 1st Embodiment about a common structure.

Further, according to the third embodiment, the translucent medium portion 370 is interposed between the image display panel 30 and the exposed translucent plate 40 in the area AR surrounded by the holding frame 60 and transmits the image. The light-transmitting plate 376 is provided, and the reflection surface 380 is provided on the side end 376 a of the light-transmitting plate 376. For example, by forming the reflection surface 280 in advance on the side end portion 376a of the interposed light-transmitting plate 376, it is possible to easily provide the reflection surface 280 at the opposite location.

Further, according to the third embodiment, the gap 388 is provided between the holding frame 60 and the interposed light transmission plate 376, and the reflection surface 380 serves as an interface with the gap 388 in the insertion light transmission plate 376. , Provided with smoothness. In such a reflective surface 380, the reflectance of the image light can be increased by utilizing the refractive index difference between the interposed translucent plate 376 and the gap 388, and the holding frame 60 is separated from the reflective surface 380. Thus, the holding frame 60 can be prevented from being reflected on the reflecting surface 380. Therefore, it becomes more difficult to visually recognize the holding frame 60 through the area AR between the image display panel 30 and the exposed translucent plate 40. As described above, the display device 300 with good appearance can be provided.

(Fourth embodiment)
As illustrated in FIG. 11, the fourth embodiment of the present disclosure is a modification of the first embodiment. The fourth embodiment will be described with a focus on differences from the first embodiment.

The translucent medium part 470 in the display device (or vehicle display device) 400 of the fourth embodiment is provided with a reflection surface 480 on the opposing wall 472 arranged in the same manner as in the first embodiment. Specifically, a metal film 472a is provided over the entire circumference on the inner peripheral surface in contact with the medium filling layer 474 in the opposing wall 472.

The metal film 472a is provided by plating the inner peripheral surface of the opposing wall 472 before assembly with a metal such as nickel and chromium, or by depositing a metal such as aluminum. Thus, the reflective surface 480 formed by the metal film 472a mirror-reflects the image light.

Also in the fourth embodiment as described above, the reflection surface 480 as a reflection portion reflects the light of the image between the outer edge portion of the image display panel 30 and the exposed translucent plate 40. Therefore, there exists an effect according to 1st Embodiment about a common structure.

Further, according to the fourth embodiment, the reflection surface 480 is formed of the metal film 472a. The metal film 472a can increase the reflectivity of the light reflection surface 480 of the image, so that it is more difficult to visually recognize the holding frame 60 through the region AR between the image display panel 30 and the exposed translucent plate 40. It becomes. Therefore, the display device 400 with good appearance can be provided.

(Fifth embodiment)
As shown in FIG. 12, the fifth embodiment of the present disclosure is a modification of the fourth embodiment. The fifth embodiment will be described with a focus on differences from the first embodiment.

The translucent medium part 570 in the display device (or vehicle display device) 500 of the fifth embodiment is provided with a reflection surface 580 on the opposing wall 572 arranged in the same manner as in the fourth embodiment. Specifically, an optical multilayer film 572a is provided over the entire circumference on the inner peripheral surface of the opposing wall 572 that contacts the medium filling layer 574.

The optical multilayer film 572a is provided in a film state by being attached to the inner peripheral surface of the opposing wall 572 before assembly. Here, the optical multilayer film 572a is formed by laminating thin films made of two or more kinds of dielectric materials having different refractive indexes along the normal direction of the reflective surface 580. By setting each film thickness in each dielectric film as appropriate, a high reflectance with respect to the wavelength of the light of the image is realized. Thus, the reflecting surface 580 formed by the optical multilayer film 572a mirror-reflects the image light.

Also in the fifth embodiment as described above, the reflection surface 580 as a reflection portion reflects the light of the image between the outer edge portion of the image display panel 30 and the exposed translucent plate 40. Therefore, there exists an effect according to 4th Embodiment about a common structure.

Further, according to the fifth embodiment, the reflection surface 580 is formed of the optical multilayer film 572a. Since the optical multilayer film 572a can increase the reflectance of the image light reflection surface 580, the viewing of the holding frame 60 through the region AR between the image display panel 30 and the exposed translucent plate 40 can be further improved. It becomes difficult. Therefore, the display device 500 having a good appearance can be provided.

(Sixth embodiment)
As illustrated in FIGS. 13 and 14, the sixth embodiment of the present disclosure is a modification of the first embodiment. The sixth embodiment will be described with a focus on differences from the first embodiment.

As shown in FIG. 13, the light transmitting medium portion 670 in the display device (or vehicle display device) 600 of the sixth embodiment has a reflection surface 680 on the opposing wall 672 arranged in the same manner as in the first embodiment. Provided. The reflective surface 680 is provided as an interface with the gap 88 in the facing wall 672.

As shown in an enlarged view in FIG. 14, the reflective surface 680 of the sixth embodiment has a plurality of inclined reflecting portions 682 and reverse inclined portions 684, and the inclined reflecting portions 682 and reverse inclined portions 684 are alternately arranged. An alternating arrangement structure is formed. The array pitch PA in the alternate array structure is, for example, about 0.1 mm for one set of the inclined reflection portion 682 and the reverse inclination portion 684.

Each inclined reflection part 682 has a flat shape that is inclined toward the image display panel 30 side by making an acute angle with the tangential direction of the display surface 32a. Each inclined reflecting portion 682 has a smoothness so that the image light is specularly reflected. Each inversely inclined portion 684 is disposed between each inclined reflecting portion 682 and is inclined toward the exposed translucent plate 40 side by making an obtuse angle with the tangential direction of the display surface 32a. Has a reverse slope.

The reflection surface 680 seems to extend substantially perpendicularly to the display surface 32a macroscopically by such an alternate arrangement structure of the inclined reflection portions 682 and the reverse inclination portions 684. As in the first embodiment, the opposing wall 672 is provided so as to extend substantially perpendicular to the display surface 32a.

In FIG. 14, the light of the image reflected by the reflecting surface 680 is schematically shown by a broken-line arrow.

Also in the sixth embodiment as described above, the reflection surface 680 as a reflection portion reflects the light of the image between the outer edge portion of the image display panel 30 and the exposed translucent plate 40. Therefore, there exists an effect according to 1st Embodiment about a common structure.

Further, according to the sixth embodiment, the reflecting surface 680 is arranged to be inclined toward the image display panel 30 side, and has the inclined reflecting portion 682 that reflects the light of the image. The inclined reflection unit 682 can narrow the range of the image Id that is the target of inversion of the reflected image Irv by the reflection surface 680 in the image. Accordingly, the image display panel 30 can be effectively used without worrying about the reflected image Irv, and the display device 600 having a good appearance can be provided.

Further, according to the sixth embodiment, the reflection surface 680 forms an alternate arrangement structure in which the inclined reflection portions 682 and the reverse inclined portions 684 inclined toward the exposed translucent plate 40 are alternately arranged. ing. The reverse inclined portion 684 cancels the inclination by the inclined reflecting portion 682, so that the space occupied by the reflecting surface 680 in the circumferential direction is suppressed. Accordingly, it is possible to effectively use a space for displaying an image, and it is possible to provide the display device 600 having a good appearance without narrowing the range of the display surface 32a.

(Seventh embodiment)
A seventh embodiment of the present disclosure will be described. In this embodiment, a reverse image is displayed in addition to the structure of the first embodiment, and the other aspects are the same as those in the first embodiment, and thus the description thereof is omitted here.

Hereinafter, the inverted image Irv will be described in detail. As shown in FIG. 5, the inverted image Irv is displayed as a virtual image obtained by inverting the image when the image displayed on the display surface 32 a of the display surface unit 32 is reflected by the reflecting surface 80. Here, since the area of the reflection surface 80 of the present embodiment is smaller than the area of the display surface 32a, more specifically, the inverted image Irv is displayed in the reflection target area Arv of the display surface 32a. The displayed image is inverted and displayed as a virtual image.

Here, the reflection target area Arv shown in FIG. 17 can be calculated based on the eye range and the mounting position of the vehicle display device 100. As an example, a tangent line circumscribing the eyelips ELP set based on the eye range, and a tangent line passing through the viewing-side end portion 80a of the reflecting surface 80 (see the two-dot chain line in FIG. 1) is calculated. Then, among the light rays emitted from the display surface 32a, the light rays that pass through the tangent line after the reflection by the reflection surface 80 are calculated. The calculation of the light beam can be performed by, for example, a light beam tracing method or a simple method that substitutes this. The emission point of the light ray thus calculated on the display surface 32a is estimated as a boundary between the reflection target region Arv and the reflection target region Arv on the display surface 32a.

For example, in the present embodiment, on one side of the left-right direction DH of the vehicle 1, the display surface 32 a is angled from the viewing side end 80 a of the corresponding reflecting surface 80 at an angle of about 40 to 50 ° with respect to the normal direction of the reflecting surface 80. The intersection of the straight line toward the display surface 32a and the display surface 32a is a boundary between the reflection target region Arv and the reflection target region Arv on the display surface 32a. In this way, light from the reflection target area Arv in the display surface 32a can be reflected by the reflection surface 80 and reach the eyelips ELP. Further, the reflection surface 80 is adjacent to the reflection target region Arv by being in contact with the display surface 32a.

Next, an image that is controlled by the control unit 20 and displayed as a real image on the display surface unit 32 will be specifically described. In the apparatus 100, the image that is displayed as a real image on the display surface portion 32 includes the information display image Ii. Examples of the information display image Ii include an operation image Ii1 used for operation of the vehicle 1 or the image display panel 30, a character Ii2 representing information, a map Ii3, a television image, and the like.

Examples of the operation image Ii1 include a button image used for operation of air conditioning setting in the passenger compartment, a button image for using a navigation function, and a button image for using an audio function. When the operator performs a touch operation on these operation images Ii1, the touch detection unit 50 detects a touch operation on the operation image Ii1, and the settings of various devices of the vehicle 1 are changed according to the operation image Ii1, The image displayed on the display surface portion 32 changes.

The characters Ii2 include characters representing the air conditioning setting state, characters representing the audio setting state, characters representing the state of the vehicle 1 such as vehicle speed and fuel consumption, characters representing the state outside the vehicle such as traffic information, and e-mail characters. Can be mentioned.

In addition, each illustrated information display image Ii may be displayed constantly, or may be temporarily displayed according to a touch operation or the like.

Further, examples of images that do not correspond to the information display image Ii include various background images Ib1, Ib2, Ib3, and Ib4. The background images Ib1, Ib2, Ib3, and Ib4 are displayed as backgrounds for the information display image.

FIG. 18 shows an example of the display. The plain background image Ib1 whose direction dependency is limited is displayed as a real image both in the reflection target area Arv and outside the reflection target area Arv. In addition, an “AUTO” button image used for air conditioning setting as the operation image Ii1 and a character “Ii2” “75” representing information are displayed as a real image outside the reflection target area Arv.

Therefore, on the display surface 32a, the information display image Ii and the background image Ib1 are displayed as real images outside the reflection target area Arv, and only the background image Ib1 is displayed as a real image within the reflection target area Arv. A reverse image Irv obtained by inverting the background image Ib1 in the reflection target area Arv is displayed as a virtual image outside the display surface portion 32 by the reflection surface 80 along the edge of the display surface portion 32. Therefore, only the plain background image Ib1 is reflected in the inverted image Irv, and the information display image Ii is not reflected.

In this example, regarding the display position of the information display image Ii, the display hidden area Adh in which the display is hidden by the light shielding edge 42 of the exposed translucent plate 40 in the display surface 32a is also considered. Specifically, since the information display image Ii is displayed as a real image outside the reflection target area Arv and outside the display hidden area Adh, both the driver and the passenger on the passenger seat 4b can directly view the information display image Ii. It is like that.

FIG. 19 shows another example of display. The background image Ib2 of the fabric pattern with limited direction dependency is displayed as a real image both inside the reflection target area Arv and outside the reflection target area Arv. In addition, an “AUTO” button image used for air conditioning setting as the operation image Ii1 and a character “Ii2” “75” representing information are displayed as a real image outside the reflection target area Arv.

Therefore, as shown in FIG. 20, the information display image Ii and the background image Ib2 are displayed as real images outside the reflection target area Arv in the display surface 32a, and only the background image Ib2 is a real image within the reflection target area Arv. It is displayed. A reverse image Irv obtained by inverting the background image Ib2 in the reflection target area Arv is displayed as a virtual image outside the display surface 32 by the reflection surface 80 along the edge of the display surface 32. Therefore, the fabric image background image Ib2 is reflected in the inverted image Irv, and the information display image Ii is not reflected. In this example as well, the display hidden area Adh is taken into consideration as in the above example.

In the present embodiment, the background images Ib1 and Ib2 whose direction dependency is limited are backgrounds that can be substantially identified with the image before rotation, for example, even when the image is rotated vertically and horizontally. An image is shown.

FIG. 21 shows another example of display. The striped background image Ib3 is displayed as a real image both in the reflection target area Arv and outside the reflection target area Arv. The outline OL of the striped pattern in the background image Ib3 intersects the extending direction DE of the boundary portion 82 perpendicularly at the boundary portion 82 with the reflecting surface 80. In addition, an “AUTO” button image used for air conditioning setting as the operation image Ii1 and a character “Ii2” “75” representing information are displayed as a real image outside the reflection target area Arv. In FIG. 21, only a part of the contour line OL is given a reference numeral.

Therefore, as shown in FIG. 22, the information display image Ii and the background image Ib3 are displayed as real images outside the reflection target area Arv on the display surface 32a, and only the background image Ib3 is displayed as a real image within the reflection target area Arv. It is displayed. A reverse image Irv obtained by inverting the background image Ib3 in the reflection target area Arv is displayed as a virtual image outside the display surface 32 by the reflection surface 80 along the edge of the display surface 32. Therefore, only the striped background image Ib3 is reflected in the inverted image Irv, and the information display image Ii is not reflected. In this example as well, the display hidden area Adh is taken into consideration as in the above example.

FIG. 23 shows another example of display. A map Ii3 is displayed as a real image as an information display image Ii in a part outside the reflection target area Arv. On the other hand, the blurred image Ib4 is displayed as a real image as a background image in the reflection target area Arv. The blurred image Ib4 is created by blurring the map that is the information display image Ii. Here, the blurring process in the present embodiment is a process that makes it difficult to discriminate the original display content by blurring the contour line or the like of the original image. As a result, the blurred image Ib4 is viewed as if it has passed through the frosted glass, and it is extremely difficult to determine the information of the original map Ii3.

Further, an interpolation image Iip is displayed as a real image continuously from the blurred image Ib4 and the map Ii3 as the information display image Ii in a portion adjacent to the reflection target region Arv outside the reflection target region Arv on the display surface 32a. Yes. The interpolated image Iip is an image created by blurring the map Ii3 that is the information display image Ii. The blurring degree of the interpolated image Iip gradually increases in a gradation so as to approach the blurring degree in the blurred image Ib4 as it approaches the reflection target area Arv. Here, the blurring degree in the present embodiment is the degree of the blurring effect in the blurring process, and it is assumed that the outline of the original image becomes more blurred as the blurring degree increases.

In this embodiment, since the blurring degree of the interpolated image Iip substantially matches that of the blurred image Ib4 at the boundary between the interpolated image Iip and the blurred image Ib4, it is difficult to determine the information of the original map Ii3. On the other hand, since the blurring degree is extremely low at the boundary between the interpolated image Iip and the map Ii3, it is easy to determine the information of the original map Ii3.

Therefore, as shown in FIG. 24, on the display surface 32a, the map Ii3 and the interpolation image Iip as the information display image Ii are displayed as a real image outside the reflection target area Arv, and the background image is displayed in the reflection target area Arv. Only the blurred image Ib4 is displayed as a real image. A reverse image Irv obtained by inverting the blurred image Ib4 in the reflection target area Arv is displayed as a virtual image outside the display surface 32 by the reflection surface 80 along the edge of the display surface 32. Therefore, in the reverse image Irv, only the blurred image Ib4 as the background image is reflected, and the map Ii3 and the interpolated image Iip as the information display image Ii are not reflected.

In FIG. 23, the display range of the blurred image Ib4 is indicated by hatching where diagonal lines intersect, and the display range of the interpolated image Iip is indicated by diagonal line hatching in only one direction. Further, in FIG. 23, a map picture is shown under each hatching, but in practice, a blurring process according to the above-described blurring degree is performed. In FIG. 24, hatching where diagonal lines intersect is also applied to the inverted image Irv, which is an expression showing that the inverted image Irv is also blurred in the same manner as the blurred image Ib4. .

(Function and effect)
The operational effects of the present embodiment described above will be described below.

According to the present embodiment, in the vehicle display device 100 mounted on the vehicle 1, the display surface portion 32 of the image display panel 30 displays an image as a real image. Further, the reflection surface 80 is disposed at the edge of the display surface portion 32. The reflection surface 80 reflects light from the reflection target area Arv in the display surface portion 32. Thereby, since the reverse image Irv is displayed as a virtual image outside the display surface portion 32, it is possible to give a sense of spreading to the display.

Here, the information display image Ii in the image is displayed outside the reflection target area Arv in the display surface portion 32. Therefore, even if the reflection surface 80 reflects light from the reflection target area Arv, the information display image Ii is displayed. Is suppressed from being reflected in the inverted image Irv. Therefore, by avoiding the viewer from being confused by the inverted image Irv, the visibility of the display content is improved, and information is easily understood accurately.

Further, according to the present embodiment, the light-transmitting plate 40 that is formed in a curved surface exposed on the viewing side and transmits the image is provided, and the reflecting surface 80 is provided between the image display panel 30 and the light-transmitting plate 40. Be placed. By doing so, even when the internal region AR corresponding to the curved surface of the exposed light transmitting plate 40 is formed between the image display panel 30 and the exposed light transmitting plate 40, the edge of the display surface portion 32 is formed. Since the reflection surface 80 arranged along the line displays the inverted image Irv, it is difficult to confirm the step HD between the image display panel 30 and the exposed translucent plate 40 on the outer periphery of the area AR. That is, it is difficult to recognize the presence of the image display panel 30 on the back side of the exposed translucent plate 40. Therefore, by sufficiently exhibiting the curved surface feeling of the exposed translucent plate 40, the visibility of the device 100 is improved while improving the appearance of the device 100.

Further, according to the present embodiment, the information display image Ii includes the operation image Ii1 used for the operation of the vehicle 1 or the image display panel 30. If the operation image Ii1 is reflected in the reverse image Irv, not only the visibility is deteriorated, but also a smooth operation is hindered. However, since the information display image Ii is displayed outside the reflection target area Arv, even if the reflection surface 80 reflects light from the reflection target area Arv, reflection of the operation image Ii1 on the inverted image Irv is suppressed. As a result, visibility is improved and smooth operation is possible.

Further, according to the present embodiment, the touch detection unit 50 that detects a touch operation on the operation image Ii1 is provided. In such an apparatus 100, if the operation image Ii1 is reflected in the inverted image Irv, the operator may be confused by the inverted button image and touch the inverted image Irv. . However, in the present embodiment in which the information display image Ii is displayed outside the reflection target area, even if the reflection surface 80 reflects light from the reflection target area Arv, the operation image Ii1 is reflected in the inverted image Irv. It is suppressed and visibility increases. The operator does not have to make a mistake in the position of the touch operation.

Further, according to the present embodiment, the information display image Ii includes the character Ii2. If the character Ii2 is reflected in the inverted image Irv, the inverted character is displayed and is difficult to read, and the visibility deteriorates. However, in the present embodiment in which the information display image Ii is displayed outside the reflection target area Arv, even if the reflection surface 80 reflects the light from the reflection target area Arv, the character Ii2 is reflected in the inverted image Irv. As a result, the deterioration of the legibility of the character Ii2 is suppressed, and the visibility is improved.

Further, according to the present embodiment, the information display image Ii includes the map Ii3. If the map Ii3 is reflected in the reverse image Irv, the viewer misunderstands that the road where the virtual image is displayed is reversed from the road where the real image is displayed, for example. However, in the present embodiment in which the information display image Ii is displayed outside the reflection target area Arv, even if the reflection surface 80 reflects light from the reflection target area Arv, the map Ii3 is reflected in the inverted image Irv. It is suppressed, visibility becomes good, and map Ii3 can be grasped correctly.

Further, according to the present embodiment, the background images Ib1, Ib2, Ib3, and Ib4 displayed as the background for the information display image Ii are displayed as real images in the reflection target area Arv. By doing so, even if the reflecting surface 80 reflects the light from the reflection target area Arv, the background images Ib1, Ib2, Ib3, and Ib4 are inverted and reflected in the inverted image Irv, so that the viewer can invert the information display. Is suppressed from being confused, and visibility is improved.

Further, according to the present embodiment, the blurred image Ib4 created by blurring the information display image is displayed as the background image in the reflection target area Arv. Even if the blurred image Ib4 is reflected in the inverted image Irv, the content cannot be clearly seen and is not easily confused, so the visibility is improved. Furthermore, it is possible to give an impression that the information display image Ii is also displayed on the inverted image Irv, and the display feeling is increased.

In addition, according to the present embodiment, in the portion of the display surface portion 32 that is adjacent to the reflection target area Arv, the degree of blur increases so as to approach the blur degree in the blurred image Ib4 as the reflection target area Arv approaches. The image Iip is displayed. For example, in the case where the map Ii3 is adopted as the information display image Ii by such an interpolated image Iip, misperception such as a road that stops at the reflection target area Arv is suppressed, and visibility is reduced. It becomes good. Furthermore, continuity can be given to the display from the information display image Ii through the reflection target area Arv to the inverted image Irv, and the feeling of spreading of the display is enhanced.

Further, according to the present embodiment, the reflection surface 80 is disposed adjacent to the reflection target region Arv, and the contour line OL in the background image Ib3 is the extending direction DE of the boundary portion 82 at the boundary portion 82 with the reflection surface 80. Intersects vertically. As a result, the contour line OL in the background image Ib3 and the contour line inverted in the inverted image Irv are connected without being bent, so that the display of the reflection target area Arv and the inverted image Irv is continuous, and the display is expanded. A feeling increases.

Further, according to the present embodiment, the reflecting surface 80 is disposed adjacent to the reflection target area Arv, and the background images Ib1 and Ib2 are limited in direction dependency. Even if the background images Ib1 and Ib2 with limited direction dependency and the inverted images Irv of the background images Ib1 and Ib2 are viewed adjacent to each other, it is difficult to recognize that the background images Ib1 and Ib2 are inverted. In addition, the display of the reflection target area Arv and the inverted image Irv is continuous, and the feeling of expansion of the display is increased.

(Other embodiments)
Although a plurality of embodiments of the present disclosure have been described above, the present disclosure is not construed as being limited to those embodiments, and various embodiments and combinations can be made without departing from the scope of the present disclosure. Can be applied.

Specifically, as a first modification regarding the first to second and fourth to sixth embodiments, an acrylic resin may be employed as a light-transmitting medium in the medium filling layer 74.

As a second modification related to the third and fourth embodiments, as shown in FIG. 15, a reflective surface 380 may be formed by a metal film 472 a provided on a side end 376 a of the interposed translucent plate 376.

As a third modification regarding the third and fifth embodiments, as shown in FIG. 16, a reflective surface 380 may be formed by an optical multilayer film 572 a provided at the side end 376 a of the interposed light-transmitting plate 376. .

As a fourth modified example related to the third and sixth embodiments, the reflective surface 380 provided at the side end 376a of the interposed light-transmitting plate 376 is alternately arranged such that the inclined reflecting portions 682 and the reverse inclined portions 684 are alternately arranged. An array structure may be formed.

As a fifth modified example related to the third embodiment, the interposed translucent plate 376 has an optical transparent resin between the image display panel 30 and the exposed translucent plate 40 instead of the optical transparent adhesive sheet. You may adhere | attach using.

As a sixth modified example related to the fourth and fifth embodiments, a gap 88 may not be provided between the holding frame 60 and the facing wall 472.

As a seventh modification related to the fourth and fifth embodiments, the reflection surface 480 may be provided on the outer peripheral surface of the facing wall 472.

As a modification 8 related to the sixth embodiment, the reflection surface 680 may have an inclined reflection part 682 on the entire surface thereof.

As a ninth modification, the exposed translucent plate 40 may be formed in a convex plate shape that is convex on the viewing side. Further, the exposed translucent plate 40 is, for example, a curved plate that is concave on the image display panel 30 side in a cross section along the vertical direction of the vehicle and is convex on the viewing side in a cross section along the left and right direction of the vehicle. It may be formed.

As a tenth modification, the image display panel 30 may be formed in a curved plate shape as long as the shape is different from the exposed translucent plate 40.

As the eleventh modification, the image display panel 30 may not have the surrounding frame portion 34 at the outer edge portion. For example, an organic EL panel other than the liquid crystal panel may be employed as the image display panel 30.

As a twelfth modification, the display device 100 may not include the holding frame 60.

As a modification 13, the display device 100 does not need to function as an operation device because it does not include the touch detection unit 50.

As a fourteenth modification, the reflection unit may include a configuration other than the surface as long as it reflects the light of the image.

As a modified example 15 related to the seventh embodiment, a region calculated by a ray passing through an intermediate portion of the left and right eye ranges may be employed as the reflection target region Arv, instead of a tangent line circumscribing the eyelips ELP. Moreover, the area | region obtained experimentally or empirically may be employ | adopted as reflection object area | region Arv.

As a sixteenth modification related to the seventh embodiment, the information display image Ii may be a real image displayed in the display hidden area Adh as long as it is outside the reflection target area Arv on the display surface 32a.

As a modified example 17 related to the seventh embodiment, the blurred image Ib4 as the background image includes a portion where the blurring degree changes in a gradation if it is difficult to determine the information of the original map Ii3. May be. Further, the blurred image Ib4 may extend outside the reflection target area Arv.

As a modified example 18 related to the seventh embodiment, various forms can be adopted for the reflecting section.

Specifically, in FIG. 8 as an example of the modified example 18, instead of the facing wall 72, a medium filling layer 274 is provided including a facing portion facing the holding frame 60 in the inner region AR. The reflecting surface 280 in FIG. 8 is formed with smoothness as an interface with the gap 288 in the medium filling layer 274.

As another example of the modified example 18, in FIG. 10, an interposed translucent plate 376 is provided between the image display panel 30 and the exposed translucent plate 40 in the internal region AR instead of the facing wall 72 and the medium filling layer 274. Is inserted. The reflective surface 380 in FIG. 10 is provided on the side end portion 376a of the interposed translucent plate 376 with smoothness as an interface with the gap 388.

As another example of the modified example 18, in FIG. 11 (or FIG. 12), the reflecting surface 480 (or reflecting surface 580) is a reflecting film 472a (or reflecting film 572a) such as a metal film or an optical multilayer film. Are formed on the inner peripheral surface of the opposing wall 472 (or the opposing wall 572).

As another example of the modified example 18, in FIG. 13, the reflecting surface 680 includes a plurality of inclined reflecting portions 682 and reverse inclined portions 684 shown in an enlarged manner in FIG. An alternate arrangement structure in which the portions 684 are arranged alternately is formed. Each inclined reflecting portion 682 has a flat shape that is inclined toward the back side by forming an acute angle with the tangential direction of the display surface 32a. The inclined reflecting portion 682 has a smoothness so that the image light is specularly reflected. Each inversely inclined portion 682 is disposed between each inclined reflecting portion 682 and is inclined toward the viewing side by forming an obtuse angle with the tangential direction of the display surface 32a. By such an inclined reflection part 682, the reflection target area Arv can be narrowed. Therefore, it is possible to increase the degree of freedom in displaying the information display image Ii while improving the visibility of the display content.

Claims (27)

An image display panel (30) for displaying images;
An exposed translucent plate (40) that is provided in a curved plate shape exposed on the viewing side and transmits the image;
Of the region (AR) between the image display panel and the exposed translucent plate, a reflective portion (80) that reflects the image light between the outer edge of the image display panel and the exposed translucent plate. , 280, 380, 480, 580, 680). An opening frame (60) that opens by surrounding the region from the outer periphery side is further provided,
The display device according to claim 1, wherein the reflection portion is provided at a facing portion facing the opening frame. Further comprising a translucent medium part (70, 270, 370, 470, 570, 670) that includes the facing portion in the region surrounded by the opening frame and transmits the light of the image;
The display device according to claim 2, wherein the reflection section is provided in the light transmission medium section. The translucent medium portion has an opposing wall (72, 472, 572, 672) along the opposing portion and blocking between the image display panel and the exposed translucent plate,
The display device according to claim 3, wherein the reflecting portion is provided on the facing wall. The translucent medium portion is a medium layer filled in an inner peripheral side of the opposed wall in the region, and has a medium filled layer (74) having a contact interface (74c) with the opposed wall. 4. The display device according to 4. A gap (88) is provided between the opening frame and the opposing wall,
The display device according to claim 5, wherein the reflection portion is provided with smoothness as an interface with the gap. The translucent medium portion has a medium-filled layer (274) filled with the region surrounded by the opening frame including the facing portion,
A gap (288) is provided between the opening frame and the medium filling layer,
The display device according to claim 3, wherein the reflection portion is provided with smoothness as an interface with the gap in the medium filling layer. The translucent medium portion is interposed between the image display panel and the exposed translucent plate in the region surrounded by the opening frame, and includes an interpenetrated translucent plate (376) that transmits the image. Have
The display device according to claim 3, wherein the reflection portion is provided at a side end portion (376a) of the interposed translucent plate. A gap (388) is provided between the opening frame and the interposed translucent plate,
The display device according to claim 8, wherein the reflecting portion is provided with smoothness as an interface with the gap. The display device according to any one of claims 1 to 5 and 8, wherein the reflection portion is formed of a metal film (472a). The display device according to any one of claims 1 to 5 and 8, wherein the reflection portion is formed of an optical multilayer film (572a). The display device according to any one of claims 1 to 11, wherein the reflection unit includes an inclined reflection unit (682) that is arranged to be inclined toward the image display panel and reflects the light of the image. 13. The display device according to claim 12, wherein the reflection unit has an alternate arrangement structure in which the inclined reflection unit and the reverse inclined unit (684) inclined toward the exposed translucent plate are alternately arranged. . The image display panel is
On the exposed light transmitting plate side, a display surface portion (32) provided by arranging display pixels;
A surrounding frame portion (34) surrounding the display surface portion from the outer peripheral side,
14. The display device according to claim 1, wherein the reflecting portion is provided in contact with the display surface portion on an inner peripheral side of the surrounding frame portion in the outer edge portion. The display device according to claim 1, wherein the exposed translucent plate is provided in a concave shape that is recessed toward the image display panel. The display device according to any one of claims 1 to 15, further comprising a touch detection unit (50) configured to detect a touch operation on the exposed translucent plate. A display device mounted on the vehicle (1),
An image display panel (30) having a display surface (32) for displaying a real image of an image including the information display image (Ii);
A virtual image that is arranged along the edge of the display surface portion and reflects the light from the reflection target region (Arv) in the display surface portion to invert the image of the reflection target region outside the display surface portion. A reflective portion (80) for displaying,
The display device in which the information display image of the image is displayed as a real image outside the reflection target region in the display surface portion. An exposed translucent plate (40) that is provided in a curved shape exposed on the viewing side and transmits the image;
The display device according to claim 17, wherein the reflection unit is disposed between the image display panel and the exposed light-transmitting plate. The display device according to claim 17 or 18, wherein the information display image includes an operation image (Ii1) provided for operation of the vehicle or the image display panel. The display device according to claim 19, further comprising a touch detection unit (50) for detecting a touch operation on the operation image. The display device according to any one of claims 17 to 20, wherein the information display image includes a character (Ii2). The display device according to any one of claims 17 to 21, wherein the information display image includes a map (Ii3). The display device according to any one of claims 17 to 22, wherein a background image (Ib1, Ib2, Ib3, Ib4) displayed as a background for the information display image is displayed as a real image in the reflection target region. 24. The display device according to claim 23, wherein a blurred image (Ib4) created by blurring the information display image is displayed as the background image in the reflection target area. An interpolated image (Iip) in which the degree of blur increases so as to approach the blur degree in the blurred image as it approaches the reflection target area in the display surface portion adjacent to the reflection target area. Item 25. The display device according to Item 24. The reflection portion is disposed adjacent to the reflection target region,
24. The display device according to claim 23, wherein the contour line (OL) in the background image (Ib3) intersects perpendicularly with the extending direction (DE) of the boundary portion at a boundary portion (82) with the reflecting portion. The reflection portion is disposed adjacent to the reflection target region,
The display device according to claim 23, wherein the background image (Ib1, Ib2) is limited in direction dependency.

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