JP2009216888A - Screen display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a screen display device easily operated even during driving of a vehicle by improving the switching of a screen display and the operability of volume adjustment, and the like. <P>SOLUTION: The screen display device includes: a display means having a touch panel on a screen surface; an approach sensor which is disposed near the display means and detects approach of a person's hand; and a control means for controlling the display of the display means. If the hand detection means detects a hand approach during the display of a predetermined display screen on the display means, the display on the display means is switched to a display corresponding to the predetermined display screen. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a screen display device such as an in-vehicle navigation device capable of various operations using a touch panel attached to the front surface of a display means.

  Recent on-vehicle navigation devices have various functions such as watching TV and playing DVD / CD in addition to route guidance. In such an electronic device, various hard keys (physical and mechanical keys, switches, buttons, etc.) are arranged on the front surface of the electronic device so that the user can perform desired functions and operations. These hard keys include, for example, a power key for turning on and off the main power of the electronic device, a function selection key for selecting and switching various functions provided in the electronic device, and a menu provided for each function. And a menu selection key for selecting.

  If the electronic device has functions such as navigation function, music player function, television receiver, etc., it is necessary to operate each function by deciding which function to select by operating the function selection key. Various designations are determined by operating the menu selection keys.

  In addition, in the above-mentioned device intended for in-vehicle use, in addition to the hard keys as described above, the liquid crystal panel constituting the display screen is used so that the input operation for operating the device does not interfere with the driving operation. A touch panel as an input means is provided on the surface, and various operations can be performed by touching an operation icon displayed on the screen with a finger. For example, when watching TV, TV channel operation When the icon is displayed on the screen and any desired icon is touched, the channel is switched to the channel corresponding to the icon.

  At this time, in order to display the channel operation icon on the screen, it is displayed by operating a hard key for screen switching provided in the apparatus. Further, when adjusting the volume of a television or a CD, the volume is adjusted by operating a volume adjustment hard key provided in the apparatus.

  However, the hard keys provided in the conventional screen display device for operating the hard keys to display channel buttons on the screen and adjusting the volume need to be provided in a limited space on the front surface of the device. Designed small. It has been difficult to operate such a small hard key during driving, and there is a problem that the operation may be neglected and driving may be neglected, and improvement in operability has been desired.

  As a technique for improving the operability of in-vehicle devices, Patent Document 1 (Japanese Patent Application Laid-Open No. 2002-91674) includes a detection unit that divides operation units of in-vehicle devices into groups and detects the approach of a hand for each group. Therefore, a technology has been proposed in which when the approach of the hand is detected by the detection unit during night driving, the position of the operation unit can be known even in dark lighting by increasing the illumination brightness of the operation unit constituting the corresponding group. ing.

Patent Document 2 (Japanese Patent Application Laid-Open No. 11-232537) has a different technical field, but as a technique related to the operation of the display device, a human detection sensor and a display with a touch panel are provided on the front surface of the vending machine. A technique has been proposed in which a product sample image is displayed on a display when a human approach is detected, and a product can be selected by a touch panel in that state.
JP 2002-91674 A JP-A-11-232537

  In a screen display device such as an in-vehicle navigation device, there is a risk that an operation during driving may lead to an accident.Therefore, when operating a desired function such as screen display switching or volume adjustment, the number of operations should be reduced as much as possible. Reduction is required. However, in the prior arts disclosed in Patent Document 1 and Patent Document 2, in order to improve the operability of the in-vehicle device, when the approach of the hand is detected, the illumination brightness of the operation unit is increased or a product sample image is displayed on the display. However, in a screen display device such as an in-vehicle navigation device, there is a problem that it cannot be used to improve operability such as screen display switching or volume adjustment.

  The present invention has been made in view of such a problem, and relates to a screen display device such as an in-vehicle navigation device capable of various operations using a touch panel attached to the front surface of a display unit. An object of the present invention is to provide a screen display device that detects when a finger is brought close to a screen to operate the device and automatically switches to a screen to be displayed next.

  In order to solve the above-mentioned problem, the invention according to claim 1 of the present application detects the approach of a human hand provided in the vicinity of the display means, the touch panel attached to the front surface of the display means, and the display means. A screen display device comprising hand detection means and control means for controlling the display of the display means, wherein the control means displays a predetermined display screen on the display means by the hand detection means. When approach is detected, the display of the display means is switched to a display screen corresponding to the predetermined display screen.

  The invention according to claim 2 of the present application is characterized in that, in the invention according to claim 1, the display screen displayed on the display means is a display screen displaying a touch icon.

  The invention according to claim 3 of the present application is the invention according to claim 1 or 2, wherein the screen display device further includes screen identification means for identifying the display screen displayed on the display means. And the screen identifying means identifies the display screen displayed on the display means when the hand detecting means detects the approach of a human hand, and the control means displays the display on the screen. Switching to a display screen corresponding to the display screen identified by the identification means is characterized.

  The invention according to claim 4 of the present application is characterized in that, in the invention according to any one of claims 1 to 3, the screen display device is applied to a display device of an in-vehicle device.

  The invention according to claim 5 of the present application is characterized in that in the invention according to claim 4, the in-vehicle device is a navigation device.

  The screen display device of the present invention has the following effects.

  That is, in the invention according to claim 1, when a hand detection means for detecting the approach of a human hand is provided and the approach of the hand is detected by the hand detection means while displaying a predetermined display screen on the display means. Since the display of the display means is switched to a display screen corresponding to a predetermined display screen, screen display switching is improved.

  In the invention according to claim 2, in the screen display device according to claim 1, the display screen corresponding to the predetermined display screen is a display screen for displaying a touch icon. When the approach of the hand is detected, the display means can be switched to a display screen of a predetermined touch icon corresponding to a predetermined display screen currently being displayed. Will improve.

  According to a third aspect of the present invention, in the screen display device according to the first or second aspect, the screen identifying means may be arranged on the display means when an approach of a human hand is detected by the hand detecting means. The displayed display screen is identified, and the control means switches the display on the display means to a display screen corresponding to the display screen identified by the screen identifying means. Depending on the display screen displayed on the display means when it is detected, a transition can be made to a predetermined transition screen or a predetermined touch icon screen.

  Moreover, in the invention concerning Claim 4, since the screen display apparatus concerning any one of Claim 1 thru | or 3 was applied to the display apparatus of vehicle equipment, it can operate now easily in driving | operation.

  In the invention according to claim 5, in the screen display device according to claim 4, since the in-vehicle device is a navigation device, the operation of the navigation device having a television, a CD / DVD playback function, etc. can be easily performed. become able to.

  Hereinafter, specific examples of the present invention will be described in detail with reference to examples and drawings.

  However, the embodiment described below exemplifies the case where the in-vehicle navigation device is a screen display device, but is not intended to specify the present invention as this screen display device. The present invention is equally applicable to screen display devices of other embodiments included in the scope.

  FIG. 1 is a control block diagram of a navigation apparatus 1 according to an embodiment of the present invention.

  The control means 11 is constituted by a processor including a CPU, a ROM, and a RAM (not shown), and controls the operation of each part of the navigation device 1 according to a control program recorded in the ROM and the RAM.

  The control unit 11 also functions as a screen identification unit 110 and a display switching unit 120 described later.

  The current position detection means 12 includes a GPS receiver, receives radio waves including time information from a plurality of GPS satellites orbiting the earth, and calculates the current position based on the received information. is there.

  Furthermore, the current position detection means 12 can also calculate the current position using a self-contained navigation unit including a distance sensor, a direction sensor, a vehicle speed sensor, and the like. In this case, the current position can be calculated by detecting the travel distance and travel direction of the vehicle and adding these values to the reference position. Also, by combining the detection of the current position by the self-contained navigation unit and the detection of the current position based on the GPS receiver, a high-rise building that is prone to errors due to the effects of multipaths, etc. Effective in towns.

  The current position detection means 12 further functions as vehicle state detection means for detecting whether the vehicle on which the navigation device 1 is mounted is running or stopped based on outputs from a distance sensor, a direction sensor, a vehicle speed sensor, and the like. To do.

  The input unit 13 includes various keys, switches, and the like, and performs input operations in the navigation device 1, input of a departure place, a destination, and the like.

  The input means 13 may be input by touching an icon or the like displayed on the screen by providing a touch panel function to the display means 14 described later.

  The display means 14 displays a map image and a guide route on the map image so as to be distinguishable from other roads, and is constituted by, for example, a liquid crystal display.

The map storage means 15 is a road including road node data (node data) and road link data (link data) in which nodes such as intersections and branch points of the roads are nodes and routes connecting the nodes are links. The route search means 16 for storing data is from the current position of the vehicle detected by the current position detection means 12 or the destination specified by the operator via the input means 13 to the destination specified via the input means 13. By using a method such as Dijkstra method, the shortest distance, the shortest time, etc., between the road link data corresponding to the starting point and the destination by referring to the road data stored in the map storage means 15 for the guide route The search is performed so that the minimum cost is obtained.

  The proximity sensor 17 is a sensor that is provided at an appropriate position on the front surface of the display unit 14 and detects that the operator's hand has approached. The proximity sensor 17 can be configured using, for example, an infrared sensor, and identifies that a hand or a finger has approached the display unit 14 when infrared rays corresponding to the body temperature of the human body are continuously detected for a predetermined time. Can do.

  The position where the proximity sensor is provided is not limited to an appropriate position on the front surface of the display means 14, but can be any position that can detect the approach of the hand at a position around the front surface of the display means 14 such as an outer frame around the display means 14. There is no particular limitation.

  The screen identification unit 110 identifies a screen currently displayed on the display unit 14, for example, a route guidance screen, a CD playback screen, a television screen, and the like. For screen identification by the screen identification unit 110, for example, screen transition information corresponding to a standard operation order for each function provided in the navigation device is stored, and a screen being displayed is identified according to the operation order. The screen transition information will be described later in detail with reference to FIG.

  The display switching unit 120 displays the display screen of the display unit 14 according to the screen identified by the screen identification unit 110 when the approach sensor 17 detects the approach of the hand and the screen identification unit 110 identifies the screen. Switch.

  FIG. 2 is a flowchart showing the display switching process of the screen display device according to the embodiment of the present invention.

  First, it is determined whether or not the navigation device 1 is activated (step S1). If the navigation device 1 is activated, the current position detection means 12 detects the traveling state of the vehicle (step S2), and further the screen identification means. The screen currently displayed on the display means 14 is identified by 110 (step S3).

  Thereafter, whether or not the hand has approached is determined by the proximity sensor 17 (step S4), and when the approach of the hand is detected, the display screen of the display means 14 is switched according to the screen identified in step S3 ( Step S5). At this time, if it is detected in step S2 that the vehicle is traveling, the operation icon related to the setting of the navigation function can be hidden so that the setting of the navigation function cannot be performed. . This is because there is a risk that an operation during driving may lead to an accident.

  On the other hand, if the approach of the hand is not detected in step S4, it is determined whether or not the navigation device 1 is turned off (step S6). If not, the process returns to step S4 and approaches again. Detection by the sensor 17 is performed.

  FIG. 3 is a diagram illustrating a screen transition example of the screen display device according to the embodiment of the present invention.

  In FIG. 3, an icon indicated by “DVD / CD” indicates a DVD / CD playback function, an icon indicated by “TV” indicates a television broadcast receiving function, and an icon indicated by “NAVI” indicates a navigation function. When the navigation function is activated and the menu screen is invoked, icons such as “Destination”, “Route”, and “VICS” (registered trademark) are displayed on the menu screen, and the user selects one of the icons. be able to. When the “destination” icon is selected, the screen transitions to a destination input selection screen on which icons such as “address”, “phone number”, and “facility” are displayed.

  When the television broadcast reception function is activated, the television broadcast image being received is displayed on the display means 14, and when the approach of the hand is detected, the display changes to the channel (CH) list display screen, and the desired channel is displayed. You will be able to choose. The screen identification unit 110 stores the order of such screen transitions, identifies the current screen based on the operation and selection process using the menu screen and selection screen displayed on the display unit 14, and The screen to be displayed on the screen can be specified.

  (1) If a hand is brought close to the proximity sensor 17 while a map showing the current position is displayed, the screen is switched as shown in FIG. 4, and the “menu” and “mode” icons are displayed large. A menu selection screen or a mode selection screen can be displayed by touching either of them with a finger. In FIG. 4, reference numeral 5a is a volume adjustment key of a hard key.

  In addition, (2) when a hand is brought close to the proximity sensor 17 while watching a television, the screen is switched as shown in FIG. 5, and an icon indicating a channel is displayed large, and by touching one of them with a finger, The channel can be selected.

  Also, (3) when a hand is brought close to the proximity sensor 17 during CD reproduction, the screen is switched as shown in FIG. 6, and an icon for raising or lowering the volume is displayed large. The volume can be adjusted by touching with a finger. The volume can be adjusted by operating the volume adjustment key 5a. However, since the volume adjustment key 5a is small, an operation during driving is difficult. On the other hand, if the volume adjustment icon displayed largely on the display means 14 is operated, it can be easily operated even during driving.

  (4) When a hand is brought close to the proximity sensor 17 during DVD playback, as shown in FIG. 7, the screen is switched, and “stop” and “pause” icons are displayed large. By touching with a finger, playback can be ended or temporarily stopped.

  Further, (5) When a hand is brought close to the proximity sensor 17 while the route guidance screen is displayed, the screen is switched as shown in FIG. 8, and the icons of “stop guidance” and “edit route” are displayed large. By touching any of them with a finger, the route guidance can be stopped or the route can be edited again.

  As described above in detail, according to the image display device of the present invention, the hand detection unit is provided which detects the approach of a human hand, and the display unit displays the predetermined display screen. When the approach of the hand is detected, the display screen of the display means is switched to a display screen corresponding to the display screen, so that operability such as screen display switching and volume adjustment can be improved. It becomes like this.

It is a block diagram of the navigation apparatus which concerns on one Example of this invention. It is a flowchart which shows the display switching process of the screen display apparatus which concerns on one Example of this invention. It is a figure which shows the example of a screen transition of the screen display apparatus which concerns on one Example of this invention. It is a figure which shows the example of a display switch when a hand is approached during television viewing. It is a figure which shows the example of a display switch when a hand is made to approach during CD reproduction | regeneration. It is a figure which shows the example of a display switch when a hand is made to approach during the present location display. It is a figure which shows the example of a display switch when a hand is made to approach during DVD reproduction. It is a figure which shows the example of a display switch when a hand is made to approach during route guidance.

Explanation of symbols

11. Control means 110 ... Screen identification means 120 ... Display switching means 12 ... Current position detection means 13 ... Input means 14 ... Display means 15 ... Map storage means 16 ... Route search means 17 ... Approach sensor

Claims (5)

A display means; a touch panel attached to the front surface of the display means; a hand detection means provided in the vicinity of the display means for detecting the approach of a human hand; and a control means for controlling the display of the display means. Screen display device,
The control means switches the display of the display means to a display screen corresponding to the predetermined display screen when the approach of the hand is detected by the hand detection means while the predetermined display screen is being displayed on the display means. A screen display device characterized by the above.   The screen display device according to claim 1, wherein the display screen corresponding to the predetermined display screen is a display screen that displays a touch icon. The screen display device further includes screen identification means for identifying the display screen displayed on the display means,
The screen identification means identifies the display screen displayed on the display means when the hand detection means detects the approach of a human hand, and the control means displays the display means on the screen identification means. The screen display device according to claim 1, wherein the screen display device is switched to a display screen corresponding to the display screen identified by.   The screen display device according to claim 1, wherein the screen display device is applied to a display device of an in-vehicle device.   The screen display device according to claim 4, wherein the in-vehicle device is a navigation device.

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