JP2007102618A - Display device and navigation system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display device for providing a content of a movie without being disturbed by a driver's hand when the driver operates a touch panel, in a display that can change the display image in accordance with the viewing direction. <P>SOLUTION: The device comprises a display means for simultaneously displaying images different from each other; a contact position detection means for detecting a coordinate value of a contact position of an operator to the front face of the display means; an operation start detection means for detecting the operation start of the operator to the contact position detection means; and a video control means for controlling images displayed on the display means, based on the coordinate value detected by the contact position detecting means. When the operation start detection means detects the operation start of the operator to one image, the video control means temporarily stops the other image being reproduced. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a display device that displays an image on a display such as a liquid crystal display and a navigation device including the display device, and in particular, a display device that has an operation function of operating a device connected by a touch panel installed on the display and the display device. The present invention relates to a navigation device provided.

  Conventionally, as a display device of a navigation device mounted on a car, in order to provide different images to the driver of the car and a passenger sitting in the passenger seat, when viewing from the right side and from the left side with one display Displays that display different images simultaneously have been developed.

  In this case, for example, it is possible to provide the current position of the car by displaying a navigation map screen necessary for driving to the car driver, and to provide contents such as a movie to the passenger sitting in the passenger seat.

For each image displayed on the display, for example, an operation for searching and setting the current position on the navigation screen, and an operation such as playback / fast-forward / stop on the content screen such as a movie are required. Regarding the operation of each image, a technique of operating with a touch panel installed on a display has been proposed (for example, see Patent Document 1). In the technique disclosed in Patent Document 1, it is necessary to determine whether the operation is an operation on an image provided to the driver side or an operation provided on the passenger seat side. For this reason, the touch-only areas for the viewers A and B are provided on the screen, and the viewer touches the touch-only area in advance to make the display device recognize the operation from which the erroneous operation is performed. It is preventing.
JP 2005-071286 A

  However, in the display device described in Patent Document 1, for example, when the driver operates the navigation screen while the passenger in the passenger seat is watching a movie, the hand operating the driver's touch panel hides the screen. It obstructs the view of passengers in the passenger seat. Therefore, there has been a problem that the driver cannot appreciate the contents of the movie being operated.

  The present invention has been made in order to solve the above-described conventional problems, and an object thereof is to provide a display device that allows a driver to appreciate the contents of a movie in which a driver is operating a touch panel without being obstructed by the driver's hand. To do.

  In order to solve the above-described conventional problems, a display device according to the present invention includes a display unit that can simultaneously display different images, and a contact position detection unit that is installed in front of the display unit and detects a coordinate value of an operator's contact position. And an operation start detecting means for detecting an operation start of the operator to the contact position detecting means, and a video control means for controlling an image displayed on the display means based on the coordinate value detected by the contact position detecting means. The video control means temporarily stops the other reproduced image when the operation start detecting means detects the operator's operation start on the one image.

  The display means is a display that can simultaneously display different images in two display directions on the same display screen.

  The display means is two displays, and the angle formed by the display surface of each display is between 90 ° and 180 °.

  The operation start detection means detects the operator's operation start by detecting contact of the operator with the contact position detection means.

  The operation start detection means is a camera for photographing the operator, and detects the operation start of the operator by detecting the approach of the operator's hand to the contact position detection means.

  In addition, the video control means switches the other image temporarily stopped to the same image as the one image operated by the operator.

  Further, the image processing means further includes an operation end detecting means for detecting the end of the operator's operation on the contact position detecting means, and the video control means detects the other image that has been paused when the operation end detecting means detects the operator's operation end. Resume playback of.

  Further, the operation end detection means detects the operator's operation end by detecting the input operation which is the final operation in the flow of a series of input operations.

  According to the display device of the present invention, when the start of operation by one operator is detected, the image provided to the other viewer is temporarily stopped. You can appreciate the continuation. Therefore, there is an effect that the viewer on the other side can appreciate the content of the image while operating the touch panel without being obstructed by the operator's hand.

  The best mode for carrying out the present invention will be described below with reference to the drawings. In the present embodiment, a case will be described in which the display device is mounted on a vehicle and an image is provided to each user who sits on the driver seat and the passenger seat of the vehicle as shown in FIG. The display device of the present invention is not limited to the case where it is installed in front of the driver seat and the passenger seat as shown in FIG. 1, but provides images to passengers seated on the left and right of the rear seat of the vehicle. In some cases, it is not installed between the backrests of the two front seats, and is not limited to the passenger compartment. For example, when an image is provided to an occupant seated in an adjacent seat of an aircraft, it can be similarly applied by installing it between the back portions of two front seats.

  FIG. 2 shows a configuration diagram of a display device according to an embodiment of the present invention. In FIG. 2, the display device 1 includes a display unit 2, a contact position detection unit 3, an operation start detection unit 4, and a video control unit 5. Various video devices that provide images to be displayed on the display unit 2 are connected to the display device 1. Examples of the various video equipment include a DVD (Digital Versatile Disk) player, an HDD (Hard Disk Drive), a TV tuner, a navigation device, and the like. The video equipment is selected and displayed on the display means 2 according to a selection instruction from the user. The The navigation device searches the optimum route based on the map information recorded on the HDD or DVD, the own vehicle position obtained from a connected GPS (Global Positioning System) antenna, etc., and the set destination information. In order to provide the route guidance to the destination to the user, an image displaying the vehicle position on the map is provided to the display device 1.

  The display means 2 may be a single display that can change the displayed image according to the viewing direction, or a case where two displays are arranged. The case where two displays are arranged will be described later, and one display that can change the displayed image according to the viewing direction will be described. FIG. 3 shows an image diagram of an image displayed on the display. When viewed from the right side (driver's seat side) of the display, a map image (first image) of the navigation device can be viewed, and when viewed from the left side, a movie image (second image) played by a DVD player can be viewed. it can. Here, operation buttons 31 to 33 for operating the map image of the navigation device in the first image are displayed.

  The principle of the display will be briefly described with reference to FIG. In FIG. 4, the display means 2 includes a liquid crystal panel 41 serving as an image display unit, an illumination backlight 42 placed on the back surface of the liquid crystal panel 41, and a slit 43 placed on the front surface of the liquid crystal panel 41. In the liquid crystal panel 41, a plurality of first areas 44 for displaying a first image to be provided to the driver and a plurality of second areas 45 for displaying a second image to be provided to the passenger in the passenger seat are alternately arranged. .

  The slit 43 includes a plurality of transparent regions 47 and a plurality of opaque regions 48, and light transmitted from the backlight 42 through the plurality of first regions 44 of the liquid crystal panel 41 passes through the plurality of transparent regions 47 of the slit 43. The driver can view the first image by arriving in the direction of. On the other hand, the light transmitted through the plurality of second areas 45 of the liquid crystal panel 41 from the backlight 42 reaches the direction of the passenger in the passenger seat through the transparent area 47 of the slit 43, so that the passenger in the passenger seat displays the second image. Can see.

  As shown in FIG. 4, the contact position detection means 3 includes a touch panel 49 installed on the front surface of the display means 2 and a position detection circuit (not shown). The position detection circuit detects the position where the operator touches the touch panel 49 with a finger and sends the position coordinates to the video control means 5. As the touch panel 49, a resistance film type using a thin film transparent electrode, a capacitance type, a pressure sensitive type, or the like can be used.

  The operation start detection unit 4 detects a start time point at which the operator reaches and operates the touch panel 49 installed on the front surface of the display unit 2. Using the signal detected by actually touching the touch panel 49 of the contact position detecting means 3, it is possible to detect the start point of the operator's operation. Alternatively, a camera may be installed separately to detect the start time of the operation by detecting the approach of the operator's hand. In this case, for example, when the driver is about to operate the touch panel 49, it can be detected before actually touching the touch panel 49, so that the driver's operating hand before the driver's view of the passenger seat is obstructed. It becomes possible to detect the time point.

  The video control means 5 detects which operation button of the displayed image is pressed from the coordinates of the contact position of the operator's finger detected by the contact position detection means 3, and applies it to the video equipment that provides the image. Sends the operation instruction assigned to the operation button. Then, the image processed by the operation instruction from the video device is received from the video device and displayed on the display means 2.

  For example, FIG. 5 shows a state where the driver is operating the map image of the navigation device in the display state of FIG. In FIG. 5, when the driver is viewing the navigation map screen and touches the operation button “detail” with his / her finger to view the detailed map, the video control means 5 presses the operation button 31 “detail”. It is detected that an instruction to request a detailed map is sent to the navigation device. When the video control unit 5 receives the detailed map image from the navigation device, the video control unit 5 displays the image on the display unit 2.

  Here, referring to FIG. 5, the hand operated by the driver covers the display screen, and the passenger in the passenger seat cannot see the image (second image) viewed from the left side (passenger seat). In particular, a display mounted on a car has a small display size of about 7 inches due to the problem of installation space, and many parts are covered with hands. Therefore, in the display device according to the present embodiment, when the operation start detection unit 4 detects the start time of the operation of the operator, the video control unit 5 pauses the playback to the video equipment that provides the image on the other side of the operator. Send instructions to do.

  At this time, it is necessary for the video control means 5 to recognize to which video equipment the pause command is sent. Whether the operator is a driver or a passenger in the passenger seat is prepared with an input button so that the operator recognizes which one is input to the display device 1 before the operation, and the operation start detecting means 4 operates the operation. When the start time of the user's operation is detected, a command to pause is transmitted to the video equipment that provides the image on the side opposite to the side input by the input button. Further, as described above, when a camera is separately installed as the operation start detection means 5, it is possible to easily recognize which is the operator by image recognition.

  Next, the flow of processing in which the video control means 5 controls playback of video equipment will be described with reference to the flowchart of FIG. First, in accordance with the initial setting or an instruction from the operator, a video device that provides the first image and the second image is determined, and each image is reproduced (step S001). Then, it is determined whether or not the operation start detection means 4 has detected the start time of either operator's operation (step S002). When the operation start detection unit 4 detects the start time of the operation (YES), the process proceeds to step S003. When the operation start detection unit 4 does not detect (NO), the process returns to S002 and the reproduction of each image is continued. Waiting for detection signal from.

  When the operation start detecting means 4 detects the start time of the operation, it is determined whether the operation is an operation on the right image (first image) or an operation on the left image (second image) (step) S003). If it is determined in step S003 that the operation is for the right image (YES), the process proceeds to step S004. If it is determined that the operation is for the left image (NO), the process proceeds to step S008.

  Here, regarding whether the operation is for the right image (first image) or the left image (second image), an input button is prepared as described above, and the operation is performed in advance before the operation. It may be determined based on the input result for recognizing which is input to the display device, and if a separate camera is installed, it is easy to recognize which is the operator by image recognition. Can be determined.

  In step S004, since it is determined in step S003 that the operation is for the right image, a command to pause image reproduction is sent to the video equipment that provides the left image. Next, the position coordinate value touched by the operator is received from the contact position detecting means 3 (step S005), and it is detected which operation button displayed in the right image operated by the operator is pressed, and the image The operation instruction assigned to the operation button is sent to the video equipment that provides the image, and the image after operation is received and displayed on the display means 2 (step S006). Here, the operation button is not necessarily detected. For example, when a point on a map is directly pointed with a finger on the map screen of the navigation device and a detailed map of the point is requested, the video control means 5 includes an instruction for requesting the received position coordinates and the detailed map. Is transmitted to the navigation device, and a detailed view centered on the previous position coordinates is received from the navigation device and displayed on the display device 2.

  Next, in step S007, when the end of the operator's operation is detected (YES), the process proceeds to step S012, and when the operation has not been completed (NO), the process returns to step S005 to perform the next operation. Is received from the contact position detecting means 3. Here, regarding the detection of the end of the operation, it is only necessary to detect the input operation as the final operation in the flow of a series of input operations. For example, with respect to the process of setting the destination and guiding the route to the navigation device, (1) menu screen, (2) destination setting, (3) route search instruction, (4) route confirmation, ( 5) In the series of processing flows (1) to (5) of navigation start, when “(5) Navigation start” is detected, it is determined that the series of operations has ended. Further, an operation end input button may be prepared, and the end of the operator's operation may be detected by the input.

  In step S012, since it is determined in step S007 that the operator's operation has been completed, the video device that provides the left image for which playback has been paused is instructed to start playback, and the played image is displayed. It is displayed on the means 2.

  If it is determined in step S003 that the operation is for the left image, the process proceeds to step S008, and a command to pause image reproduction is sent to the video equipment that provides the right image. Next, the position coordinate value touched by the operator is received from the contact position detecting means 3 (step S009), which operation button displayed in the left image operated by the operator is detected, and the image is detected. The operation instruction assigned to the operation button is sent to the video equipment providing the image, and the image after the operation is received and displayed on the display means 2 (step S010).

  Next, in step S011, when the end of the operation of the operator is detected (YES), the process proceeds to step S012, and when the operation has not been completed (NO), the process returns to step S009 to perform the next operation. Is received from the contact position detecting means 3. In step S012, since it is determined in step S011 that the operator's operation has been completed, the video device that provides the right-side image for which playback has been paused is instructed to start playback, and the reproduced image is displayed. Is displayed on the display means 2.

  As described above, when an operation on the contact position detecting means by one operator is detected as in the processing of FIG. 6, the image to the viewer on the other side is temporarily stopped. After ending, the viewer can watch the continuation from the point of pause. Therefore, the other viewer / listener has an effect of being able to appreciate the content of the image during operation of the contact position detecting means without being obstructed by the operator's hand.

  In FIG. 6, when the end of the operation of the operator is detected in step S012, the automatically paused image is reproduced so that the continuation can be viewed. However, the reproduction is resumed based on the viewer's reproduction instruction. Even if it does, since viewing can be continued from the time of being paused, the same effect is acquired. In this case, since it is not necessary to detect the end of the operator's operation, steps S007, S011, and S012 can be omitted.

  For the image displayed during pause, the paused image may be left displayed, or when restarting playback as instructed by the viewer as described above, an input for prompting playback restart A waiting image may be displayed.

  Further, during the pause, the same image as the image operated by the operator may be displayed. While the other viewer is watching an image such as a movie, the other operator's hand suddenly grows, the viewing is interrupted, and the operator is not able to see the image that the operator is seeing, so he knows what he is doing I feel frustrated. By displaying the same image that the operator is operating during the pause, the other viewer can see what the operator is doing and understand that it is performing the necessary operation Because it can, it can be expected to be less frustrating.

  In addition to DVD players, HDDs, TV tuners, and navigation devices, various video devices connected to audio devices such as CD (Compact Disk) players and MD (Mini Disk) players can be operated on the display. Included in case. However, in this case, since it is not necessary to stop the music being played back, there may be a case where the visual field of the viewer on the other side is hindered when operating those acoustic devices on the display.

  As described above, whether or not the processing as in the present embodiment is necessary depends on what the viewer on the other side is viewing the image on the video device. For example, it is necessary when the viewer on the other side is watching a movie with a DVD player or when watching a TV with a TV tuner selected. Is not necessary when displaying music on a map, or when listening to music with an audio device as described above. However, in the case of a navigation device, it is necessary if you are watching a mode (simulation mode) that automatically scrolls the map to the destination to see the entire route set by the viewer on the other side It becomes. That is, it becomes necessary when the image viewed by the viewer on the other side can be paused and the continuation can be viewed later.

  In the above, when the TV tuner is selected and the viewer is watching the television, usually the image broadcast in real time is viewed. In this case, the operation start detecting means 4 is operated on the other side of the viewer. When the start of the user's operation is detected, the broadcast cannot be paused, so the video control means 5 transmits a command for recording the image being broadcast to the connected DVD player or HDD. When the operation end of the operator is detected, the real-time broadcast recording is continued, and if the image from the start of recording is played back, the viewer is operating as if the broadcast was paused. You can watch TV images without missing them.

  In the above embodiment, the case where the display unit 2 is a single display capable of changing the displayed image according to the viewing direction has been described. Next, a case where two normal displays that are not changed depending on the viewing direction are arranged will be described. However, in the case of these two displays, there may or may not be a problem depending on the arrangement.

  FIG. 7 shows a view from the top when two displays are arranged side by side, and an arrangement as shown in FIG. 7A and an arrangement as shown in FIG. 7B are conceivable. . The two displays may be connected by a hinge, or may be separately fixed to the column.

  In FIG. 7A, the display for the driver is installed on the side close to the passenger seat, and the display for the passenger on the passenger seat is installed on the side close to the driver seat. The display surface is directed so as to provide images to each of the passengers, and when viewed from above, the character is “he” (90 ° <θ <180 °, where θ is the angle between the display surfaces of the two displays) is set up. In the case of the arrangement as shown in FIG. 7A, when the driver brings his hand close to the display for operation, the view of the passenger in the passenger seat is obstructed.

  In FIG. 7B, the display for the driver is installed on the side close to the driver's seat, and the display for the passenger on the passenger seat is installed on the side close to the passenger seat. The display surface is directed so as to provide images to the passengers, and when viewed from above, it is installed so as to have the reverse shape of the letter “he” (180 ° <θ <360 °). In this case, even if the driver brings his / her hand close to the display, the view of the passenger in the passenger seat is not obstructed, so that the processing as in the present invention is considered unnecessary.

  As described above, there may or may not be a problem depending on the arrangement of the two displays. If the angle θ formed by the display surfaces of the two displays can be freely changed by the user, the angle θ is detected. Therefore, when 90 ° <θ <180 °, the processing as in the present invention is performed, and when 180 ° <θ <360 °, the processing as in the present invention is not performed. Alternatively, switching may be performed according to the angle θ. Here, it is assumed that an angle detection means is installed in order to detect the angle θ at the hinge portion connecting the two displays. As the angle detection means, a rotation angle sensor using a Hall element, a potentiometer using a change in resistance value, or the like can be used.

  FIG. 8 shows a flowchart in the case where the processing is switched according to the angle θ between the two displays. Steps that perform the same processing as in the flowchart of FIG. 6 are assigned the same reference numerals, and descriptions thereof are omitted. 8 differs from FIG. 6 in that steps S020 to S022 are added.

  After each image is reproduced in step S001, the angle θ formed by the display surfaces of the two displays is detected, and it is determined whether 90 ° <θ <180 °. Therefore, the necessary processing of steps S002 to S012 is performed in the same manner as in FIG. 6 (step S020).

  If it is determined in step S020 that it is not within the range of 90 ° <θ <180 °, the process proceeds to step S021. Here, when θ is 0 ° <θ <90 °, the images on the two displays are at angles that are difficult to view. Therefore, it has been determined that 180 ° <θ <360 °. . When θ is in this range, the operation by one operator does not hinder viewing of the other image. The image control means 5 receives the position coordinate value touched by the operator from the contact position detection means 3 (step S021), detects which operation button displayed on the image operated by the operator is pressed, and An operation instruction assigned to the operation button is sent to the video equipment that provides the image, and the image after operation is received and displayed on the display means 2 (step S022).

  Here, unlike the case of a single display that can change the displayed image according to the viewing direction, the touch position detection means 3 is installed in each of the two displays, so which image is instructed. Is easy to understand. For this reason, the processes of S021 and S022 are collectively described without being divided into processes for the left and right images.

  As described above, the angle θ formed by the display surfaces of the two displays as shown in FIG. 8 is detected, and only when 90 ° <θ <180 °, the operation start detecting means is operated by the operator for one image. When the operation start is detected, the process can be performed only when necessary by performing the process of temporarily stopping the other image being reproduced.

  When the display device according to the present invention detects the operation of the touch panel by the driver, the display to the passenger seat side is temporarily stopped. Therefore, when the operation of the touch panel by the driver is ended, the continuation from the point of suspension can be appreciated. It has an effect and is useful for a display device such as a navigation device.

The figure which shows an example of the installation position in the vehicle of the display apparatus concerning embodiment of this invention The block diagram which shows the structure of the display apparatus concerning embodiment of this invention Image of the image displayed on one display that can change the image displayed depending on the viewing direction The figure which shows the operation principle of the display which can change the picture which is displayed depending on the viewing direction The figure which shows the state which the driver is operating the map image of a navigation apparatus in the display state of FIG. Flowchart showing the flow of processing in which video control means 5 controls playback of video equipment Figure when viewed from above when two displays are arranged side by side (a) Arrangement with driver display on the side close to the passenger seat (b) Side near the driver's seat with the driver display Layout diagram installed in A flowchart showing the flow of processing in which the video control means 5 controls the playback of the video equipment when the processing is switched according to the angle θ between the two displays.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Display apparatus 2 Display means 3 Contact position detection means 4 Operation start detection means 5 Image | video control means 49 Touch panel

Claims (9)

Display means capable of simultaneously displaying different images;
Contact position detection means installed on the front surface of the display means for detecting coordinate values of the operator's contact position;
Operation start detecting means for detecting an operation start of an operator to the contact position detecting means;
Video control means for controlling an image displayed on the display means based on the coordinate value detected by the contact position detection means,
The display device characterized in that the video control means pauses the other image being reproduced when the operation start detection means detects an operation start of the operator for one image. The display device according to claim 1, wherein the display means is a display capable of simultaneously displaying different images in two display directions on the same display screen. The display device according to claim 1, wherein the display means is two displays, and an angle formed by a display surface of each display is between 90 ° and 180 °. The display device according to claim 1, wherein the operation start detection unit detects an operation start of the operator by detecting contact of the operator with the contact position detection unit. The operation start detection unit is a camera that photographs an operator, and detects an operation start of the operator by detecting an approach of an operator's hand to the contact position detection unit. Item 4. The display device according to Item 1. The display device according to claim 1, wherein the video control unit switches the temporarily stopped other image to the same image as the one image operated by an operator. An operation end detection unit for detecting the end of the operator's operation on the contact position detection unit;
The display device according to claim 1, wherein the video control unit resumes the reproduction of the other image that has been paused when the operation end detection unit detects the operation end of the operator. The display device according to claim 7, wherein the operation end detection unit detects an operation end of the operator by detecting an input operation which is a final operation in a flow of a series of input operations. A navigation device comprising the display device according to claim 1.

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