DISPLAY DEVICE, CONTROL METHOD, PROGRAM AND RECORDING MEDIUM

• US 20160371813A1
• Filed: 02/27/2014
• Published: 12/22/2016
• Est. Priority Date: 02/27/2014
• Status: Active Grant

• Current Assignee: Pioneer Corporation
• Original Assignee: Pioneer Corporation
• Inventors: FUJIE, Tetsuya
• Granted Patent: US 10,147,165 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B60K 2360/1523 Matrix displays
• CPC Class Codes: B60K 2360/166 Navigation
• CPC Class Codes: B60K 2360/167 Vehicle dynamics information
• CPC Class Codes: B60K 2360/191 Highlight information
• CPC Class Codes: B60K 35/22 Display screens
• CPC Class Codes: B60K 35/28 characterised by the type of the output information, e.g. video entertainment or vehicle dynamics information; characterised by the purpose of the output information, e.g. for attracting the attention of the driver
• CPC Class Codes: B60K 35/29 Instruments characterised by the way in which information is handled, e.g. showing information on plural displays or prioritising information according to driving conditions
• CPC Class Codes: B60W 2050/146 Display means
• CPC Class Codes: B60W 2552/35 Road bumpiness, e.g. potholes
• CPC Class Codes: B60W 50/14 Means for informing the driver, warning the driver or prompting a driver intervention
• CPC Class Codes: G02B 2027/014 comprising information/image processing systems
• CPC Class Codes: G02B 2027/0141 characterised by the informative content of the display
• CPC Class Codes: G02B 27/01 Head-up displays
• CPC Class Codes: G02B 27/0101 characterised by optical features G02B27/0172 takes precedence
• CPC Class Codes: G02B 27/0149 characterised by mechanical features G02B27/0176 takes precedence
• CPC Class Codes: G02B 27/646 compensating for small deviations, e.g. due to vibration or shake movement of one or more optical elements for control of motion blur in cameras, projectors or printers G03B2205/0007; image stabilisation in cameras peculiar to the presence or use of an electronic image sensor H04N23/68
• CPC Class Codes: G06T 3/40 Scaling of whole images or parts thereof, e.g. expanding or contracting
• CPC Class Codes: G09G 2340/0407 Resolution change, inclusive of the use of different resolutions for different screen areas
• CPC Class Codes: G09G 2340/0464 Positioning
• CPC Class Codes: G09G 2340/14 Solving problems related to the presentation of information to be displayed
• CPC Class Codes: G09G 2354/00 : Aspects of interface with display user
• CPC Class Codes: G09G 2380/10 : Automotive applications
• CPC Class Codes: G09G 3/001 : using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background slide projectors per se G03B23/00 = 42 HP
• CPC Class Codes: G09G 5/00 : Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators image data processing or generation, in general G06T
• CPC Class Codes: G09G 5/26 : for modifying the character dimensions, e.g. double width, double height

Abstract

A head-up display 2 includes a light source unit 4 and a combiner 9. A control unit 55 of the light source unit 4 displays on the combiner 9 a guide image indicating a letter or a graphic so that the guide image appears to overlap the background visible from a vehicle Ve. On the basis of a detection signal Sd sent from a vibration sensor 3 and the traveling speed of the vehicle Ve, the control unit 55 obtains a smoothness determination index α that is information on the degree of smoothness of the road surface on which the vehicle Ve is traveling. The control unit 55 changes the size of the letter or the graphic displayed on the combiner 9 in accordance with the smoothness determination index α.

Claims

1. A display device comprising:

a display control unit configured to display a letter or a graphic on a display unit in a state that the letter or the graphic appears to overlap scenery visible from a vehicle; and

a surface condition acquisition unit configured to obtain information on a degree of smoothness of a road surface where the vehicle is traveling,

wherein the display control unit is configured to change a size of the letter or the graphic in accordance with the information on the degree of the smoothness obtained from the surface condition acquisition unit.

2. The display device according to claim 1,

wherein the worse the degree of the smoothness of the road surface indicated by the information on the degree of the smoothness of the road surface is, the larger the display control unit makes the size of the letter or the graphic.

3. The display device according to claim 1, further comprising:

a speed acquisition unit configured to obtain a traveling speed of the vehicle; and

a vibration amount acquisition unit configured to obtain a vibration amount of the vehicle,

wherein the surface condition acquisition unit is configured to obtain information on the degree of the smoothness based on the traveling speed and the vibration amount.

4. The display device according to claim 1,

wherein the surface condition acquisition unit is configured to obtain the information on the degree of the smoothness from map data in which information on the degree of the smoothness per road is recorded.

5. The display device according to claim 4, further comprising

a speed acquisition unit configured to obtain a traveling speed of the vehicle,

wherein the display control unit is configured to change the size of the letter or the graphic in accordance with an estimated vibration amount which is estimated based on the information on the degree of the smoothness and the traveling speed.

10. The display device according to claim 1,

wherein the display control unit is configured to display a first information and a second information at the same time on the display unit, the first information being indicated by the letter or the graphic the size of which is changed by the display control unit, the second information being indicated by the letter or the graphic the size of which is not changed by the display control unit.

11. The display device according to claim 10,

wherein the first information is route guide information.

12. The display device according to claim 10,

wherein the first information is an arrow image or a distance display image, the arrow image indicating a traveling direction at a route guide point.

13. The display device according to claim 10,

wherein the second information is a speed display image, the speed display image indicating a traveling speed of the vehicle.

14. The display device according to claim 10,

wherein the first information is an arrow image or a distance display image and the second information is a speed display image, the arrow image indicating a traveling direction at a route guide point, the speed display image indicating a traveling speed of the vehicle.

15. The display device according to claim 10, further comprising

a storage unit configured to store first type information indicating a type of the first information and second type information indicating a type of the second information,

wherein the display control unit changes the size of the letter or the graphic based on the first type information and/or the second type information.

6. (canceled)

7. A control method executed by a display device, comprising:

a display control process to display a letter or a graphic on a display unit in a state that the letter or the graphic appears to overlap scenery visible from a vehicle; and

a surface condition acquisition process to obtain information on a degree of smoothness of a road surface where the vehicle is traveling,

wherein the display control process changes a size of the letter or the graphic in accordance with the information on the degree of the smoothness obtained from the surface condition acquisition process.

8. A program stored on a non-transitory storage medium and executed by a computer, making the computer function as:

a display control unit configured to display a letter or a graphic on a display unit in a state that the letter or the graphic appears to overlap scenery visible from a vehicle; and

a surface condition acquisition unit configured to obtain information on a degree of smoothness of a road surface where the vehicle is traveling,

wherein the display control unit is configured to change a size of the letter or the graphic in accordance with the information on the degree of the smoothness obtained from the surface condition acquisition unit.

9. (canceled)

16. A display device comprising:

a display control unit configured to display a letter or a graphic on a display unit in a state that the letter or the graphic appears to overlap scenery visible from a vehicle; and

a vibration amount acquisition unit configured to obtain a vibration amount detected by a sensor, the sensor detecting a vibration of the vehicle,

wherein the display control unit is configured to change a size of the letter or the graphic in accordance with the vibration amount obtained from the vibration amount acquisition unit.