Display device

Abstract

To provide a display device that enables intuitive recognition of information.SOLUTION: A display device 1 according to the present embodiment comprises: an authentication processing part 30 which acquires information on a person-to-be-authenticated and which executes authentication processing for authenticating the person-to-be-authenticated by collating the information with pre-retained information; a display part 40 that is arranged in a door 3 of a vehicle 1; and a display control part that makes the display part 40 display authentication information including at least information on the authentication result of the person-to-be-authenticated. The display part 40 can also be an electronic ink display.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to a display device mounted in a door of a vehicle. [Background technology]

[0002] 2. Description of the Related Art In recent years, systems have become known that unlock the doors of a vehicle by performing authentication processing such as face authentication. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2006-168553 A Summary of the Invention [Problem to be solved by the invention]

[0004] The result of the authentication process is notified to the passenger using a method that the passenger can recognize. Conventionally, the result has been notified using sound, light, etc., but a more intuitive and easily recognizable method is required.

[0005] The present disclosure has been made in consideration of the above circumstances, and has an object to provide a display device that allows information to be intuitively recognized. [Means for solving the problem]

[0006] In order to solve the above-mentioned problems, the display device disclosed herein comprises an authentication processing unit that acquires information about a person to be authenticated and executes an authentication process to authenticate the person to be authenticated by comparing it with pre-stored information, a display unit that is placed on the door of the vehicle, and a display control unit that causes the display unit to display authentication information including at least information regarding the authentication result of the person to be authenticated. Effect of the Invention

[0007] The display device of the present disclosure allows information to be intuitively recognized. [Brief description of the drawings]

[0008] [Figure 1] 1 is a right side view of a vehicle equipped with a display device according to an embodiment of the present invention with the door closed. [Diagram 2] FIG. 1 is a schematic functional block diagram of a display device. [Diagram 3] FIG. 2 is a schematic functional block diagram of the camera. [Figure 4] 4 is a flowchart illustrating a display control process executed by the display device in the embodiment. [Diagram 5] FIG. 4 is an explanatory diagram showing a display example of a display unit. [Figure 6] FIG. 4 is an explanatory diagram showing a display example of a display unit. [Figure 7] FIG. 4 is an explanatory diagram showing a display example of a display unit. [Figure 8] FIG. 4 is an explanatory diagram showing a display example of a display unit. [Figure 9] FIG. 13 is an explanatory diagram showing a modified example of the display unit. [Figure 10] FIG. 13 is an explanatory diagram showing another modified example of the display unit. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] An embodiment of the display device of the present disclosure will be described with reference to the attached drawings. The display device of the present disclosure can be mounted on vehicles such as automobiles having doors that open and close relative to the vehicle body, agricultural machinery, construction machinery, etc. In this embodiment, an example will be described in which the vehicle on which the display device is mounted is an automobile, and the opening and closing part is the right front door (hereinafter simply referred to as "door").

[0010] FIG. 1 is a right side view of a vehicle 1 equipped with a display device 10 according to the present embodiment with a door 3 closed.

[0011] FIG. 2 is a schematic functional block diagram of the display device 10. As shown in FIG.

[0012] In the following description, "front", "rear", "upper", and "lower" follow the definitions of "Fr.", "Re.", "To.", and "Bo." in Figures 1 and 5 to 10. "Right" refers to the front side of the page, and "left" refers to the rear side of the page.

[0013] The display device 10 is mounted on a vehicle 1 having a door 3 that opens and closes relative to a vehicle body 2. The door 3 has a door handle 4 that opens and closes the door 3. Hereinafter, when simply referring to the door 3, the door handle 4 may be included.

[0014] The display device 10 mainly includes a camera 20, a control unit 30, and a display unit 40.

[0015] The camera 20 is disposed, for example, on the B-pillar (center pillar) 5 on the driver's side of the vehicle body 2, and in the case of a right-hand drive vehicle, is disposed so that the right side of the vehicle body 2 is its imaging range. The camera 20 has a required imaging range (angle of view) in the horizontal and vertical directions required to capture images necessary for authentication. FIG. 3 is a schematic functional block diagram of the camera 20. The camera 20 is not limited to being disposed on the B-pillar 5, but can be disposed on the A-pillar (front pillar) or any other position on the vehicle body 2.

[0016] The camera 20 captures an image of the face of an occupant of the vehicle 1 as a person to be authenticated. The camera 20 has a lens 21, an imaging element 22, a light source 23, and a camera control unit 24.

[0017] The imaging element 22 is an image sensor such as a CMOS sensor or a CCD sensor that converts the light captured through the lens 21. The light source 23 is, for example, an LED that emits light in the infrared region toward the subject to be photographed.

[0018] The control unit 30 includes an authentication processing unit 31 and a display control unit 32 .

[0019] As part of the authentication process, the authentication processing unit 31 acquires image information of the face captured by the camera 20 as information on the person to be authenticated. Then, the authentication processing unit 31 authenticates the passenger (person to be authenticated) by comparing it with image information of the passenger's face that is stored in advance. Specifically, the authentication processing unit 31 uses the image information acquired by the camera 20 to perform face authentication based on a known face recognition algorithm. The authentication result obtained from the authentication processing unit 31 is supplied to, for example, a vehicle ECU that comprehensively controls the vehicle 1, and is used for unlocking the door 3, identifying the passenger, etc.

[0020] The display control unit 32 causes information related to the authentication process executed in the authentication processing unit 31 to be displayed as authentication information on the display unit 40. Specifically, the display control unit 32 causes information related to the authentication result of the passenger, i.e., information related to whether or not the passenger has been authenticated, to be displayed as the authentication information on the display unit 40 in a predetermined format. The display control unit 32 also causes information indicating that the authentication process in the authentication processing unit 31 is being executed to be displayed as the authentication information on the display unit 40 in a predetermined format.

[0021] The display unit 40 is disposed on the door 3 of the vehicle 1 and is a display that displays authentication information. The display unit 40 is, for example, an electronic ink display having a film in which electronic ink is enclosed. As long as the display unit 40 is disposed on the door 3, it is not limited to an electronic ink display, and may be a liquid crystal display or an organic EL (Electro-Luminescence) display.

[0022] The display unit 40 has a handle display unit 41 and a peripheral display unit 42, each of which independently displays information. The handle display unit 41 is disposed on the door handle 4 of the vehicle 1. The peripheral display unit 42 is disposed in a predetermined area from the periphery of the door handle 4. The shape of the door handle 4 on which the handle display unit 41 is disposed is not particularly limited, and may be a bar-shaped grip type, a plate-shaped flap type, or a retractable type that is stored in the door panel.

[0023] As described above, the display device 10 displays authentication information, which is information related to the authentication result and authentication status, on the display unit 40 disposed on the door 3. Therefore, the display unit 40 has the advantage of making it easy to visually and intuitively recognize the authentication information. Hereinafter, the display control process executed by the display device 10 in this embodiment will be specifically described.

[0024] 4 is a flowchart illustrating a display control process executed by the display device 10 in this embodiment. This display control process is executed at all times mainly based on the control of the display control unit 32.

[0025] In step S1, the display control unit 32 causes the display unit 40 to display constantly. The constant display is a display mode in which authentication information is not displayed on the display unit 40. The constant display is, for example, a mode in which the entire area of ​​the display unit 40 displays the same color as the door 3 (vehicle body 2), and as shown in Fig. 5, when the door 3 (vehicle body 2) is white, the entire areas of the handle display unit 41 and the peripheral display unit 42 display white, which is substantially the same color as the door 3.

[0026] In step S2, the display control unit 32 determines whether or not authentication processing has been started in the authentication processing unit 31. When it is determined that authentication processing has not been started (NO in step S2), the display control unit 32 waits until authentication processing is started.

[0027] When the display control unit 32 determines that the authentication process has started (YES in step S2), in step S3, it causes the display unit 40 to display, as authentication information, information indicating that the authentication process is being executed. For example, when the door 3 is white, the display control unit 32 displays black, which is different from the color of the door 3 and the door handle 4, in the entire area of ​​the handle display unit 41 and the peripheral display unit 42, as shown in FIG.

[0028] In step S4, the display control unit 32 determines whether or not the authentication process is completed in the authentication processing unit 31. If the display control unit 32 determines that the authentication process is not completed (NO in step S4), it maintains the "authentication in progress" display until the authentication process is completed.

[0029] On the other hand, when the display control unit 32 determines that the authentication process is completed (YES in step S4), in step S5, the display control unit 32 causes the display unit 40 to display information on the authentication result as authentication information. For example, when authentication is successful, the display control unit 32 displays white in the entire area of ​​the handle display unit 41 and green in the entire area of ​​the peripheral display unit 42, as shown in Fig. 7. When authentication is not successful, the display control unit 32 displays red, which is different from the case when authentication is successful, in the entire areas of the handle display unit 41 and the peripheral display unit 42, as shown in Fig. 8.

[0030] In step S6, the display control unit 32 determines whether or not a predetermined time has elapsed. The predetermined time is, for example, the time when the passenger can be considered to have recognized the authentication result, the time from when the door 3 is opened until the passenger gets in, the time until the passenger gets in and the door 3 starts to close, the time until the door 3 is completely closed, etc. If the display control unit 32 determines that the predetermined time has not yet elapsed (NO in step S6), it maintains the display of the authentication result until the predetermined time has elapsed. On the other hand, if the display control unit 32 determines that the predetermined time has elapsed (YES in step S6), it returns to step S1 and causes the display unit 40 to display constantly.

[0031] The display device 10 in this embodiment is the door 3 which is considered to be necessarily viewed by the passenger as the person to be authenticated after authentication, and has a display unit 40 particularly on the door handle 4 or its periphery. This can improve the visibility of the authentication result and also enable the passenger to intuitively recognize the authentication information.

[0032] Furthermore, because the display unit 40 is an electronic ink display, it can display with good visibility and low power consumption compared to a liquid crystal display or an organic electroluminescence display. That is, in order to achieve visibility in a bright place, a high brightness display is required for a liquid crystal display or an organic electroluminescence display. However, due to its characteristics, the display unit 40 of the electronic ink display can obtain excellent visibility even in a bright place with low power consumption.

[0033] In addition, when the authentication information is not displayed, the display device 10 displays a color substantially the same as the door 3, thereby maintaining the appearance of the vehicle 1 without making the display unit 40 stand out when the display unit 40 is not needed.

[0034] Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and spirit of the invention, and are included in the scope of the invention and its equivalents described in the claims.

[0035] For example, although an example has been described in which the display unit 40 has the handle display unit 41 and the peripheral display unit 42, the display unit 40 may have only the handle display unit 41 or only the peripheral display unit 42. The peripheral display unit 42 is not limited to the example in Fig. 1, and may be disposed around the upper part of the door handle 4 as shown in Fig. 9, or may be disposed in a strip-shaped region having a width that is a certain region in the vertical direction of the door 3 including the door handle 4 and a length direction in the front-rear direction as shown in Fig. 10.

[0036] The above-mentioned display manner of the authentication information is an example and is not limited thereto. For example, if the display color of each authentication information set in the display device 10 is the same color as the color of the vehicle body 2 on which the display device 10 is mounted, the handle display unit 41 may display a predetermined display color and the peripheral display unit 42 may display a color different from the color of the vehicle body 2, thereby allowing each authentication information to be recognized.

[0037] When the vehicle 1 automatically opens the door 3 after being authenticated by the authentication process, the display device 10 may notify which door 3 will open after authentication by displaying a predetermined display on the display unit 40 provided on the door 3 that will be opened.

[0038] Furthermore, the display device 10 may display only the authentication result as the authentication information.

[0039] The display device 10 has been described using an example in which the authentication process executed by the authentication processing unit 31 is face authentication, but the present invention is not limited to this, and authentication process may be performed via an authenticable device such as a smart key (a key that can lock, unlock, and open / close the door 3 without contact) of the vehicle 1 held by the person to be authenticated, a preregistered information terminal, or a card key when the device approaches the vehicle 1. At this time, the display device 10 may display information according to the distance on the display unit 40 using a communication technology capable of acquiring the distance between the vehicle 1 and the device held by the passenger, such as UWB (Ultra-Wide Band) communication. [Explanation of symbols]

[0040] 1 vehicle 2. Body 3 Door 4 Door handles 5 B-pillar 10 Display device 20 Camera 21 Lens 22 Image sensor 23 Light source 24 Camera control unit 30 Control section 31 Authentication processing section 32 Display control section 40 Display section 41 Steering wheel display 42 Peripheral display section

Claims

1. an authentication processing unit that acquires information about a person to be authenticated and executes authentication processing to authenticate the person to be authenticated by comparing the information with information stored in advance; A display unit disposed on a door of the vehicle; a display control unit that causes the display unit to display authentication information including at least information regarding an authentication result of the authenticated person.

2. The display device according to claim 1 , wherein the display unit is an electronic ink display.

3. The display device according to claim 1 , wherein the display unit is disposed at least on a door handle of the door.

4. The display device according to claim 1 , wherein the display control unit displays the authentication information in a color different from a color of the door.

5. The display device according to claim 1 , wherein the display control unit displays substantially the same color as the door on the display unit when the authentication information is not displayed.

6. The display device according to claim 1 , wherein the authentication information includes information indicating that the authentication process is being executed.

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