JP2023048557A - Vehicular display control system, vehicular display control method, and vehicular display control program - Google Patents

Abstract

To provide a vehicular display control system, a vehicular display control method, and a vehicular display control program that allow a specific occupant to visually recognize a specific content.SOLUTION: A virtual image formation part 6 displays a content in a display 2d for virtual image formation, whereby the content is reflected on a half-mirror 8 and a virtual image is formed in a virtual image formation region so as to be visually recognizable to a driver D and front passenger seat occupant P. A real image formation part 7 displays a real image in a display 9 in order to transmit the real image through the half mirror 8 and make it visually recognizable to the front passenger seat occupant P.SELECTED DRAWING: Figure 4

Description

The present invention relates to a vehicle display control system, a vehicle display control method, and a vehicle display processing program.

In recent years, with the increase in content to be displayed on in-vehicle displays, such as vehicle information and entertainment (hereafter abbreviated as entertainment) information, it is possible to display multiple displays in the same housing of the instrument panel. Techniques have been proposed to provide a viewing area. 2. Description of the Related Art Generally, a real image system is used in which a display surface of a display is installed so as to face an occupant of a vehicle so that the occupant can directly check the display.

However, since the environment inside the vehicle is easily affected by outside light such as sunlight, it is desirable to employ a method in which the occupant visually recognizes a virtual image in which the display surface of the display is reflected by a mirror. By appropriately adjusting the installation relationship between the display and the mirror, the image on the display can be seen by the occupants while blocking external light, ensuring high visibility. In addition, by making the occupant visually recognize the virtual image, it is possible to reduce the focus adjustment load at a distant viewpoint, and there is an advantage that the display can be installed even at a position where the real image system cannot be mounted.

JP 2005-221756 A

In recent years, in order to meet the needs of various vehicle occupants, there has been a demand for a function to display entertainment content such as movies, games, and Internet content on the display near the front passenger seat among multiple displays. .

However, when the driver checks the electronic mirror installed on the passenger side from the driver's seat, or when checking the surroundings of the vehicle through the window on the passenger side, entertainment content displayed near the front of the passenger seat comes into the field of vision, the driver may not be able to recognize necessary information or may feel annoyed. Therefore, in the vehicle display control technology, there is a demand for a technology that enables specific content to be visually recognized by a specific passenger such as a passenger in a vehicle.

An object of the present invention is to provide a vehicle display control system, a vehicle display control method, and a vehicle display control program that enable a specific passenger to visually recognize specific content.

The first aspect of the present invention is directed to a display control system for a vehicle that controls the display of content for a vehicle so that it can be visually recognized by an occupant of the vehicle. The virtual image forming unit includes a first display unit for forming a virtual image, displays content on the first display unit, reflects the content on the half mirror, forms a virtual image in the virtual image forming area, and makes the vehicle occupant visually recognize the content. . Further, the real image forming section includes a second display section for displaying a real image so that the specific passenger can see the real image through the half mirror.

According to the first aspect of the invention, the real image forming unit displays the real image on the second display unit so that the specific passenger can visually recognize the real image of the specific content. It becomes possible to visually recognize the second display unit and to visually recognize the specific content.

Structural drawing of the front part of the vehicle in the first embodiment FIG. 2 is a diagram illustrating an installation form of a virtual image forming unit, and is a longitudinal cross-sectional view schematically shown along line AA in FIG. 1; Display control image diagram A perspective view schematically showing an installation form of a virtual image forming unit and a real image forming unit around a specific occupant. FIG. 5 is a diagram illustrating an installation configuration of the virtual image forming unit and the real image forming unit, and is a vertical cross-sectional side view taken along line BB in FIG. 4; Explanatory drawing of optical path limiting action by the limiting part Block diagram schematically showing the electrical configuration Examples of content images displayed on multiple displays Explanatory diagram of the display area and optical path limiting action in the case of vertically split display in the second embodiment Explanatory diagram of the display area when left-right split display is performed in the third embodiment. Configuration Example 1 of Enlargement Optical System in Fourth Embodiment Configuration example 2 of the magnifying optical system

Several embodiments of the vehicle display control system 1 will be described below with reference to the drawings. Parts having the same configuration in each embodiment may be denoted by the same reference numerals and descriptions thereof may be omitted in the embodiments to be described later.

(First embodiment)
A first embodiment will be described with reference to FIGS. 1 to 8. FIG. A vehicle display control system 1 exemplified in FIG. The electronic control unit 11 is also called an ECU (Electronic Control Unit). As illustrated in FIGS. 1 and 2, the display 2 is installed on the instrument panel 3 with its display surface exposed to the inside of the vehicle. Below, the instrument panel 3 is abbreviated as the instrument panel 3 . The instrument panel 3 is provided in front of front seats including a driver's seat and a passenger's seat of the vehicle. A steering wheel 4 is provided between a front seat of the vehicle and an instrument panel 3 , and a front windshield 5 is provided above the instrument panel 3 . The instrument panel 3 has a planar upper surface.

The display device 2 includes a plurality of displays 2a to 2e to form a virtual image forming section 6. FIG. The virtual image forming section 6 includes a display 2d as a first display section for forming a virtual image, and a half mirror 8 . The virtual image forming unit 6 causes the displays 2a to 2e to display the content, thereby causing the half mirror 8 to reflect the content to form a virtual image K in the virtual image forming area in front of the passenger.

The displays 2a to 2e display the content in display areas whose brightness and viewing angle are controllable so that the virtual image K is visually recognized by vehicle occupants, for example, the driver D and the passenger P seated in the front seats. ing.

The real image forming unit 7 includes a display 9 as a second display unit that displays a real image through the half mirror 8 so that the passenger can visually recognize the real image. The real image forming unit 7 can display the real image so as to be superimposed on the virtual image K because the real image is transmitted through the half mirror 8 .

The display 9, as shown in FIG. 1, is installed behind the display 2d installed in front of the passenger P, in other words, in front of the display 2d. In the present embodiment, the "specific occupant" according to the present application corresponds to the front passenger seat occupant P among the occupants riding in the vehicle.

A hood 3a for the displays 2a to 2e is formed on the instrument panel 3, and the displays 2a to 2b and the hood 3a are installed in a plate shape as a whole. The hood 3a is configured to cover the rear surfaces of the displays 2a to 2e with flat portions connected to the plane of the upper surface of the instrument panel 3. As shown in FIG.

The plurality of displays 2a to 2e and 9 are configured by organic EL displays each having a front display surface. The displays 2a to 2e are installed with their front display surfaces directed downward and forward. The display 9 is installed so that its front display surface faces the rear of the vehicle. The front display surfaces of the displays 2a to 2e and 9 are flat. In addition, in order to design the physical installation constraints of the displays 2a to 2e and 9, and the visibility from the driver's seat that is located either left or right from the center of the vehicle, the display surfaces of the displays 2a to 2e and 9 are It is not limited to simple planes. It may be configured to be convex, concave, or uneven.

The vehicle display control system 1 controls display of content images on the displays 2a to 2e and 9. FIG. Each of the displays 2a to 2e and 9 can display various image contents such as meter images, images captured by a surrounding camera 21 (to be described later), entertainment images such as still and moving images, map images of the current location and surroundings, and images captured by electronic mirrors. configuration.

An organic EL display is configured using organic light emitting diodes. Organic light-emitting diodes are called OLEDs. OLED is an abbreviation for Organic Light-Emitting Diode.

The displays 2a to 2e of this embodiment are installed such that their display surfaces are generally parallel to the line of sight of the occupant or the near side faces downward. Therefore, the driver D or passenger P does not directly view the display surfaces of the displays 2a to 2e. A hood 3a is attached to the back of the displays 2a to 2e, in other words, physically located on the top of the displays 2a to 2e. The hood 3a shields sunlight entering the interior of the vehicle through the front windshield 5 so that the displays 2a to 2e are not directly exposed.

FIG. 2 shows a longitudinal section along line AA in FIG. 1, showing the display 2b in front of the driver's seat and its surroundings. A half mirror 8 is installed in front of the display surfaces of the displays 2a to 2e, physically in other words, below the displays 2a to 2e. The half mirror 8 is a reflector or member that reflects images self-luminous from the display surfaces of the displays 2a to 2e, and is supported by a part of the instrument panel 3 in a cantilever manner. The half mirror 8 is installed so as to protrude rearward and downward obliquely from the deep end of the flat portion of the hood 3a. As a result, the display surfaces of the displays 2a to 2e and the reflecting surface of the half mirror 8 maintain an installation relationship so as to be inclined at a predetermined angle.

The half mirror 8 is installed with its reflective surface facing obliquely rearward and upward, so that it is possible to reflect the image toward the front seats located behind the instrument panel 3, that is, the driver's seat and the front passenger's seat. ing. In addition, in order to improve the design of the reflecting surfaces of the instrument panel 3 and the half mirror 8, or to improve the visibility from the driver's seat on either side of the center, the reflecting surfaces of the half mirror 8 are simple. It is not limited to a flat surface, and may be configured to have a convex surface, a concave surface, or an uneven surface. The half mirror 8 is configured as a virtual image display unit that mirror-reflects the images displayed on the display surfaces of the displays 2a to 2e and displays the virtual image K in line with the passenger's line of sight.

Since the half mirror 8 is installed under the hood 3a and the displays 2a to 2e, the incident light entering from the front windshield 5 is blocked by the hood 3a and is not reflected by the half mirror 8. FIG. Since the reflection surface of the half mirror 8 is less likely to receive light, the occupant of the vehicle can easily see the virtual image K through the half mirror 8 .

A driver D or an occupant P in the passenger's seat can indirectly confirm the image projected on the display surfaces of the displays 2a to 2e as a virtual image K by visually recognizing the reflective surface of the half mirror 8. FIG. At this time, the vehicle occupant sees the virtual image K as if it were behind the reflecting surface of the half mirror 8, that is, on the front side of the vehicle.

FIG. 4 schematically shows a peripheral perspective view of the display 2d in front of the passenger P, and FIG. 5 shows a longitudinal side view along line BB in FIG. As described above, the half mirror 8 is installed in front of the display surface of the display 2d, physically in other words, below the display 2d. As shown in FIGS. 4 and 5, a display 9 is installed behind the half mirror 8 .

The display surface of the display 9 is installed toward the rear or upward obliquely, and is installed toward the front passenger's seat. The display surface of the display 9 is installed facing backward and obliquely upward. The display surface of the display 9 is installed so as to overlap the formation area of the virtual image K formed by the virtual image forming section 6 . Therefore, the real image projected by the display 9 serving as the real image forming section 7 and the virtual image K formed by the virtual image forming section 6 are substantially overlapped in the front-rear direction and can be visually recognized.

An optical path control wall 10a is installed beside the driver's seat side of the display 2d installed in front of the front passenger seat. At this time, it is desirable to configure the optical path control wall 10a on the side opposite to the side where the half mirror 8 mirror-reflects, that is, install the optical path control wall 10a on the far side. Structurally, it is desirable that the frame 8a holding the half mirror 8 is provided with the optical path control wall 10a. In the configuration shown in FIG. 5 of this embodiment, since the optical path control wall 10a is installed toward the lower back side of the half mirror 8, the optical path of the display 9 can be restricted.

That is, the optical path control wall 10a is provided as a limiting portion 10 that limits the optical path and the light distribution angle of the display 9 displaying a real image, and limits the visible range or the light distribution angle of the display 9. FIG. As shown in FIGS. 4 to 6, the optical path control wall 10a is installed behind the half mirror 8 and on the driver's seat side on the left side of the display 2d, so that the driver D can see the display 9. becomes invisible.

In addition, the viewing angle may be controlled by providing a viewing angle control film 10b, for example, a film called VCF or LCF as the limiting portion 10 on the surface of the display 9. FIG. A VCF is an optical element that limits the angular range of light travel by arranging loopers on the surface of the display 9 at regular intervals and at regular angles. LCF is an abbreviation for light collimating film, which is an optical film with a plurality of parallel grooves. When a vehicle occupant views the film from the direction perpendicular to the surface of the film, the image displayed on the display 9 can be viewed. It becomes impossible to observe the display surface.

Next, the electrical configuration of the electronic control unit 11 and its peripheral vehicle system will be described with reference to FIG. A large number of electronic control units 11 (11a, 11b, 11c) and 11z are configured in the vehicle, and communicate with each other using an in-vehicle network N to perform various controls within the vehicle. The electronic control units 11 and 11z can be classified into a display system ECU, a travel control system ECU, and the like. Among them, the electronic control unit 11 of the present embodiment belongs to the display system ECU and is also called an HCU. HCU is an abbreviation for Human Machine Interface Control Unit and indicates an information presentation control device. The travel control system ECU executes a predetermined travel control by driving a travel actuator when a travel control signal is input. In addition, when performing automatic driving, the corresponding predetermined level of driving support and automatic driving are performed by driving the driving actuator.

Each of the electronic control units 11 and 11z is mainly composed of a microcomputer having a processor, cache memory, RAM, ROM, and other storage units 13 and a bus connecting them.

In this embodiment, as shown in FIG. 3, a configuration is shown in which the electronic control unit 11 is configured by connecting a plurality of electronic control units 11a to 11c via an in-vehicle network N or a dedicated line. The plurality of electronic controllers 11a-11c share the processing capacity of their internal physical resources and control display on the plurality of displays 2a-2e, 9. FIG. The storage unit 13 described above indicates a non-transitional material storage medium that non-temporarily stores computer-readable programs and data. A non-transitional material storage medium is implemented by a semiconductor memory or the like. If it is possible to secure the processing capability of physical resources, only one electronic control device (for example, 11a) may be provided to execute the display control processing, which will be described later.

As shown in FIG. 7, the electronic control unit 11 includes a control unit 12, a storage unit 13, an arithmetic unit 14, a display processing unit 15, an I/O control unit 16 for managing inputs or outputs from various external devices, and others. and a communication control unit 17 for controlling communication with the electronic control unit 11z. Here, output signals from main components such as the locator 18, the operation panel 19, the passenger monitor 20, the peripheral camera 21, and the vehicle speed sensor 23 shown in FIG. Although the form of signal input will be described, the state of a sensor or switch may be input as the vehicle state to another electronic control unit 11z such as a travel control ECU or a perimeter monitoring ECU through the in-vehicle network N. be.

Based on the control of the control device 12, the arithmetic device 14 calculates the display area to be displayed on the display screens of the plurality of displays 2a to 2e and 9 for the contents of images and characters stored in the storage unit 13, and displays the images and characters. In which area of the display screens of the displays 2a to 2e and 9 the character content is to be displayed and in which area the character content is to be superimposed and displayed, and the display area is sent to the control device 12 together with the image and character content. Output.

The display processing unit 15 displays image and text content on the display screens of the displays 2a to 2e and 9 under the control of the control device 12. FIG. As a result, on the display screens of the displays 2a to 2e and 9, contents such as characters and images can be superimposed and displayed for each display layer.

The locator 18 uses a well-known GNSS receiver such as GPS (not shown) and an inertial sensor such as an acceleration sensor and a gyro sensor to detect the position with high accuracy. Locator 18 outputs a position detection signal to controller 12 through I/O controller 16 . The control device 12 realizes a function as an ADAS locator that sequentially locates the current position of the vehicle with high accuracy based on the map information input from the map data input device and the position detection signal of the locator 18 . ADAS stands for Advanced Driver Assistance Systems.

The control device 12 can perform so-called navigation processing based on the current position of the vehicle. A vehicle speed sensor 23 detects the speed of the vehicle and outputs vehicle speed information to the control device 12 through the I/O control section 16 . The control device 12 can identify the speed of the vehicle based on the input vehicle speed information. The operation panel 19 is composed of a touch panel, mechanical switches, or the like, and the I/O control unit 16 receives an operation input when there is an operation input by the passenger, and outputs the operation input to the control device 12 . The control device 12 executes control based on operation signals from the operation panel 19 .

The occupant monitor 20 detects the condition of a vehicle occupant in the vehicle. The occupant monitor 20 includes, for example, a power switch, occupant state monitor, turn switch, automatic control switch, etc., and outputs various signals to the control device 12 . The occupant monitor 20 includes a steering sensor that detects whether the steering wheel 4 is gripped or steered by the driver, a seating sensor that detects whether the driver is seated in the front seat, or an accelerator pedal or A brake pedal depression sensor, an electronic throttle sensor, or the like may be included.

When the power switch is turned on by a vehicle occupant in the vehicle interior in order to start the internal combustion engine or the electric motor, the power switch outputs a signal corresponding to the operation. The occupant state monitor detects the state of the driver D or the passenger P by photographing the state of the driver D or the passenger P using an image sensor and outputs an image signal. A passenger state monitor is used to detect the state of a passenger such as a driver during normal driving, driving assistance, or automatic driving. In particular, the occupant condition monitor for the driver D sitting in the driver's seat is called DSM. DSM is an abbreviation for Driver Status Monitor. The turn switch is turned on by an occupant inside the vehicle to activate the direction indicator of the vehicle, and outputs a turn signal for turning right or left according to the operation.

The automatic control switch outputs an automatic control signal in accordance with the operation when turned on by a vehicle occupant in the vehicle interior in order to command automatic control of the running state of the vehicle. The control device 12 can determine the behavior of the vehicle occupant, for example, which direction the line of sight is directed, based on the sensor signal of the occupant monitor 20, and can also determine the operating state of the power switch, the operating state of the direction indicator, and the automatic control of the vehicle. command information, etc. can be entered.

The peripheral camera 21 includes a front camera that images the front of the vehicle, a back camera that images the rear of the vehicle, a corner camera that images the front and rear sides of the vehicle, a side camera that images the side of the vehicle, an electronic A mirror camera or the like is used, and these are output to the control device 12 through the I/O control unit 16 as imaging signals for the front guide monitor, back guide monitor, corner view monitor, side guide monitor, and electronic mirror, respectively, and stored. It is stored in section 13 . The imaging signals stored in the storage unit 13 are displayed on the displays 2a to 2e and 9. FIG. The communication control unit 17 is connected to an in-vehicle network N such as CAN or LIN, and controls data communication between the control device 12 and another electronic control device 11z.

Various applications (hereinafter referred to as applications) are stored in the storage unit 13 . Applications include navigation applications, image on/off applications, image synthesis applications, and the like. A navigation application implements a navigation function and mainly draws contents such as a map displayed on multiple displays (for example, 2c and 2d) and a navigation screen including the current position of the vehicle.

The image on/off application is an application for controlling display on/off of each of the displays 2a to 2e and 9. FIG. The image synthesizing application identifies the size and type of various image contents to be displayed on the display device 2, synthesizes the images of the contents in one frame, and displays the synthesized mixed image on the multiple displays 2a to 2e, 9. It is an application that outputs. The image synthesizing application implements a function as an image synthesizing unit, which is also called a compositor. A display layer for drawing the image of the content is assigned to the application that draws the image of the content. These display layers are secured on the storage unit 13 in a size capable of drawing necessary image contents.

Also, the image contents displayed on the multiple displays 2a to 2e and 9 can be animated. Here, the animation action means a gradual change in the position or size of an image showing content, rotation of the image, or overall movement of the user interface in response to the swipe operation of the operation panel 19 by the vehicle occupant. , the image gradually fades in or fades out, or the color of the image changes.

The control device 12 and the display processing unit 15 shown in FIG. 7 execute various applications stored in the storage unit 13 to perform display control on the multiple displays 2a to 2e and 9. FIG. At this time, as illustrated in FIG. 8, the displays 2a and 2e located at the left and right ends mainly display content for the electronic mirror, and the display 2b located in front of the driver's seat displays a meter image. Control.

On the other displays 2c and 2d, the map screen for navigation processing, the captured image of the forward imaging camera, and the like are controlled to be displayed, and the entertainment image content is controlled to be displayed. The content displayed on each of the displays 2a to 2e is not limited to this. The control device 12 and the display processing unit 15 display-control the content to be visually recognized mainly by the passenger P on the display 9 .

In addition, the control device 12 and the display processing unit 15 execute the image on/off application and the image synthesis application stored in the storage unit 13, thereby controlling the field of view together with other components (for example, the optical path control wall 10a and the viewing angle control film 10b). A function as the angle control unit 30 is realized. The viewing angle control unit 30 controls the viewing angle of the content viewed by the front passenger P or an occupant other than the front passenger P (for example, the driver D).

As a specific example of viewing angle control, the viewing angle control unit 30 controls the display on/off of the display 2d forming the virtual image forming unit 6, and controls the display on/off of the display 9 forming the real image forming unit 7. . Thereby, the viewing angle control unit 30 can control whether or not the passenger P or the driver D visually recognizes the real image or the virtual image K.

When the viewing angle control part 30 does not perform viewing angle control, the display of the display 9 is turned off, contents are displayed on all the displays 2d, and the virtual image K is formed to allow all the occupants to visually recognize the virtual image K.例文帳に追加When the viewing angle control unit 30 is controlling the viewing angle, the display 2d in front of the passenger P is turned off, and the display 9 is turned on to display the contents. At this time, the display on the display 2d is turned off, so the driver D cannot see the display on the display 2d. A passenger P in the front passenger seat can visually recognize the real image displayed on the display 9 .

The display processing unit 15 implements a function as the adjustment control unit 32 by executing an application. The adjustment control unit 32 adjusts the brightness and color between the displays 2d and 9 when switching the content that has formed the virtual image K using the display 2d in front of the passenger P to the real image display using the display 9. Taste adjustment control. When switching on/off the displays 2d and 9 in front of the passenger P, for example, when switching from virtual image display to real image display, the optical characteristics of the image reflected on the surface of the half mirror 8 and the image transmitted through the half mirror 8 are: may be different. Therefore, it is desirable to adjust the luminance difference and the tint difference.

As the display 9 installed behind the half mirror 8, it is preferable to use the same kind of display unit as the display 2d for displaying the virtual image. Then, luminance difference and color difference can be suppressed as much as possible. In this case, the displays 2d and 9 may consist of either TFTs or OLEDs. When OLED is used, it can be constructed thinner than TFT liquid crystal, and it is possible to improve mountability. Conversely, for example, it is desirable to use TFTs for the displays 2d and 9 from the viewpoint of cost reduction.

In the display control example described above, an example in which either one of the displays 2d and 9 is turned on has been shown, but the present invention is not limited to this. A real image may be formed by the section 7 . That is, the displays 2d and 9 may be turned on at the same time.

By turning on the displays 2d and 9 at the same time, it is possible to superimpose the content that the driver D and the passenger P can see and the content that the driver D cannot see.

As described above, according to the present embodiment, the virtual image forming unit 6 causes the display 2d to display the content, reflects the content on the half mirror 8, forms the virtual image K in the virtual image forming area, and is used to display the content on the vehicle occupant. can be visually recognized. Further, the real image forming unit 7 displays the real image on the display 9 so that the passenger P can see the real image through the half mirror 8 . As a result, the passenger P can visually recognize the specific content and enjoy the specific content.

In general, a view angle control technique using a TFT and a liquid crystal shutter that can be switched on and off has been developed, and is called privacy view. However, when an OLED with a particularly wide viewing angle is used, the effect of controlling the viewing angle is reduced even when a liquid crystal shutter is used. According to the present embodiment, since the OLED having a wide viewing angle is adopted by the virtual image method, the front passenger P can enjoy the display contents of the display 9, and the visibility of the driver D can be ensured.

(Second embodiment)
A second embodiment will be described with reference to FIG. FIG. 9 shows the surrounding environment of the displays 2d and 9 from the viewpoint of the occupant P in the passenger's seat. The viewing angle control unit 30 may control the viewing angle by dividing the display area for virtual image display and real image display into upper and lower specific areas Ra and Rb and performing display control. Further, as shown in FIG. 9, if necessary, an optical path control wall 210a may be provided beside the lower specific area Rb, or a viewing angle control film 10b may be provided in the lower specific area Rb. It may be configured by pasting.

Further, when the upper and lower specific areas Ra and Rb are displayed simultaneously, it is preferable to display the vehicle information for the driver D and the passenger P in the upper specific area Ra, for example. Further, for example, in the upper specific area Ra, it is preferable to display and control a seatbelt detachment warning light for the passenger P when the vehicle is running, a door ajar warning light for the front passenger side door, and the like. Then, even if the driver D checks from the driver's seat side, it becomes easier for the driver D to notice the abnormality on the front passenger seat side, and the passenger P can be alerted to this point.

In the specific area Rb on the lower side, it is preferable to display contents directed to the passenger P, such as entertainment information. In the specific area Rb on the lower side, it is preferable to display and control entertainment movies, games, telephone conferences, etc. with a high drawing load and a high frame rate using the in-vehicle network N and the outside network communication. It should be noted that interrupting display of vehicle information such as a warning light in the specific area Rb on the lower side increases the processing load and adversely affects the processing speed, and should be avoided as much as possible.

When the virtual image forming unit 6 and the real image forming unit 7 form the virtual image K and the real image in the specific area Rb on the lower side toward the passenger P, the virtual image K and the real image can be superimposed. For this reason, it is possible to superimpose display of contents that cannot be displayed in an interrupted manner or displayed in a superimposed manner. For example, specific Internet content can be superimposed on the vehicle information, and vehicle information such as a warning light can be superimposed on the entertainment information display.

(Third Embodiment)
A third embodiment will be described with reference to FIG. The display processing unit 15 can variably control the width of the viewing angle control area by combining display control in which areas are divided by the viewing angle control unit 30 . For example, as exemplified in FIG. 10, the content display area is controlled to switch between the left half area Rc and the right half area Rd of the display 9, 1/3, 2/3, etc., or the area is gradually changed. may be enlarged or reduced to variably control the display area.

For example, in recent years, in-vehicle displays are often of the oblong wide type with an aspect ratio of 8:3, such as 12.3 inches and 10.25 inches. However, the content of various applications such as entertainment content display is 16: 9 or 4: 3 landscape, 9: 16 when mirror link is displayed on a smartphone, or 9: 19 portrait display. , the entire screen may not be fully used. Therefore, a larger information display area for the driver's seat can be secured by dividing the screen into parts instead of making the entire screen a privacy view.

In addition, the virtual image forming unit 6 and the real image forming unit 7 allocate resources to the displays 2d and 9 so that the display control of the content to be visually recognized by the passenger P can be processed at high speed compared to the content to be visually recognized by the driver D. It is desirable to display the content to project the virtual image K and the real image. The frame rate of the display device 2 mounted on an automobile is often about 10 to 60 fps. On the other hand, some content recommends a processing speed of 60 fps or 120 fps or more in recent high-resolution movies and games.

For this reason, it is desirable to display the content to be visually recognized by the front passenger P at a higher frame rate than the content for normal automobile display during display control. At this time, if the display control processing for all the displays 2a to 2e and 9 is made faster, there is a risk of overspec and an increase in the cost of the microcomputer. It is desirable to allocate more resources for display control of the content to be viewed to enable high-speed processing.

(Fourth embodiment)
A third embodiment will be described with reference to FIGS. 11 and 12. FIG. As illustrated in FIG. 11, as the second display unit installed behind the half mirror 8, a magnifying optical system using a small display 409 and a convex lens 50 may be constructed. Also, the viewing angle, the optical path, and the light distribution angle may be controlled using the configuration of this magnifying optical system or other lens components.

A small display 409 is installed behind the half mirror 8 , and a convex lens 50 is installed between the half mirror 8 and the small display 409 . The convex lens 50 is an optical system component that is a magnifying lens that magnifies and displays the display content of the small display 409 .

The virtual image forming section 407 is composed of a small display 409 and a convex lens 50 and is configured to project a virtual image K to the passenger through the half mirror 8 . At this time, the virtual image K can be displayed in a larger size at the back of the installation area of the small display 409, so that the overall size can be reduced and the mounting space can be reduced. Further, as illustrated in FIG. 12, a Fresnel lens 51 may be used in place of the convex lens 50 . Then, the same effect can be obtained.

(Other embodiments)
The present invention is not limited to the above-described embodiments, but can be implemented in various modifications, and can be applied to various embodiments without departing from the scope of the invention.

In the above-described embodiment, the specific occupant other than the driver D sitting in the driver's seat, for example, the occupant P in the front passenger seat, is shown as the specific occupant, but the present invention is not limited to this. For example, the specific passenger may be the driver D.

The electronic controller 11 approach described in this disclosure is implemented by a dedicated computer provided by configuring a processor and memory programmed to perform one or more functions embodied by the computer program. May be. Alternatively, the electronic controller 11 and techniques described in this disclosure may be implemented by a dedicated computer provided by configuring a processor with one or more dedicated hardware logic circuits.

Alternatively, the electronic controller 11 and techniques described in this disclosure may be a combination of a processor and memory programmed to perform one or more functions and a processor configured with one or more hardware logic circuits. It may also be implemented by one or more dedicated computers configured in combination. The computer program may also be stored as computer-executable instructions on a computer-readable non-transitional tangible storage medium.

Although the present invention has been described with reference to the embodiments described above, it is understood that the invention is not limited to such embodiments or constructions. The present invention includes various modifications and modifications within the equivalent range. In addition, various combinations and configurations, as well as other combinations and configurations including one, more, or less elements thereof, are within the scope and spirit of the invention.

In the drawings, 1 is a vehicle display control system, 2a to 2e are displays (2d is a first display unit), 6 is a virtual image forming unit, 7 is a real image forming unit, 8 is a half mirror, 9 is a display (second display unit ), 11 is an HCU (equipment for vehicle), 50 is a convex lens (magnifying lens), 51 is a Fresnel lens (magnifying lens), and 409 is a small display.

Claims (16)

A vehicular display control system (1) for controlling the display of vehicular content and allowing an occupant of the vehicle to visually recognize the content,
A first display unit (2d) for forming a virtual image is provided, and the content is displayed on the first display unit, the content is reflected by a half mirror (8), and a virtual image is formed in a virtual image forming area to form a virtual image of the vehicle. A virtual image forming unit (6) that is visually recognized by the occupant;
a real image forming unit (7) comprising a second display unit (9) for displaying the real image so that the real image is transmitted through the half mirror and viewed by a specific passenger among the passengers of the vehicle;
A display control system for a vehicle. A viewing angle control unit (30) for controlling a viewing angle of the content to be visually recognized by the specific passenger or the passenger other than the specific passenger,
When the viewing angle is not controlled by the viewing angle control section, the virtual image forming section forms the virtual image by displaying the content on the first display section, and the occupants including the specific occupant visually recognize the virtual image. Along with letting
When the viewing angle is controlled by the viewing angle control unit, the display of the first display unit in front of the specific passenger is turned off by the virtual image forming unit, and the content is displayed on the second display unit by the real image forming unit. 2. The vehicle display control system according to claim 1, wherein displaying the real image allows the specific occupant to visually recognize the real image. 3. The vehicle display control system according to claim 1, wherein the specified passenger is a front passenger seat passenger (P) among the passengers. A limiting part (10) is provided on the side opposite to the side of the half mirror that mirror-reflects, controls the optical path and light distribution angle of the real image, and limits the visible range of the second display part or the light distribution angle. The vehicle display control system according to any one of claims 1 to 3. The first display unit and the second display unit when switching the content, which has formed the virtual image using the first display unit in front of the specific crew member, to the real image display using the second display unit. 5. The vehicle display control system according to any one of claims 1 to 4, further comprising an adjustment control unit (32) that adjusts and controls luminance adjustment or color tone between. 5. The vehicle display control system according to claim 4, wherein the limiting section is configured by providing an optical path control wall (10a; 210a) for limiting the optical path of the real image of the second display section on the half mirror. 7. The vehicle display control system according to claim 4, wherein the restricting section is configured by providing a viewing angle control film (10b) on the surface of the second display section. The vehicle display control system according to any one of claims 1 to 7, wherein the second display section uses the same type of display section as the first display section for forming the virtual image. The vehicle display control system according to any one of claims 1 to 8, wherein the second display section is configured by a TFT or an OLED. 10. The vehicle display control system according to any one of claims 1 to 9, wherein the second display unit is configured by a magnifying optical system using a small display (409) and magnifying lenses (50, 51). . The vehicle display control system according to any one of claims 1 to 10, wherein the virtual image forming section displays the virtual image and the real image forming section displays the real image. The virtual image forming unit and the real image forming unit display the virtual image and the real image at the same time so that the driver (P) and the front passenger (D) do not see the content together with the content that the driver (P) and the front passenger seat occupant (D) may see. 12. The vehicle display control system according to claim 11, wherein the content is superimposed and displayed as the virtual image and the real image. A viewing angle control unit (30) for controlling a viewing angle of the content to be visually recognized by the specific passenger or the passenger other than the specific passenger,
The vehicular display according to any one of claims 1 to 12, wherein the viewing angle control unit performs viewing angle control by dividing the area for displaying the virtual image and the area for displaying the real image vertically or horizontally. control system. When applying a passenger seat occupant as the specific occupant,
The virtual image forming unit and the real image forming unit allocate resources to enable high-speed processing of display control of the content to be visually recognized by the passenger in comparison with the content to be visually recognized by the driver. The vehicle display control system according to any one of claims 1 to 13, wherein the content is displayed on the second display unit. A vehicular display control method for controlling the display of vehicular content to allow an occupant to visually recognize the content,
a process in which a virtual image forming unit causes a first display unit for forming a virtual image to display the content, thereby reflecting the content on a half mirror to form a virtual image in a virtual image forming area in front of a specific passenger among the passengers of the vehicle;
a process in which the real image forming unit transmits the half mirror to allow the occupant to visually recognize the real image and displays the real image on the second display unit so as to overlap the virtual image;
A vehicle display control method comprising: A vehicular display control program for controlling the display of content for a vehicle and allowing an occupant to visually recognize the content,
a procedure in which a virtual image forming unit causes a first display unit for forming a virtual image to display the content, thereby reflecting the content on a half mirror to form a virtual image in a virtual image forming area in front of a specific occupant of the occupants of the vehicle;
a procedure in which the real image forming unit transmits the half mirror to allow the occupant to visually recognize the real image and displays the real image on the second display unit so as to overlap the virtual image;
A vehicle display control program that executes

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