JP2012180089A - Display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display device that can display a mode change of information in which a mode change occurs between a plurality of modes, so as to be easily recognizable without increasing in size of a display panel.SOLUTION: The display device 1 includes: the display panel 2 that can display a first information image 5, 6 that indicates the first information in which the mode change occurs between the plurality of modes, as at least part of a meter image; and a control means 3, 4 for controlling the display panel 2 so that a display of the first information image 5, 6 can be switched between a plurality of display states 71, 72 while being capable of displaying the meter image. The control means 3, 4 controls the first information image to be linked to a mode change of the first information so that at least part of color of the first information image 5, 6 after the mode change is different from that before the mode change.

Description

  The present invention relates to a display device that displays an information image representing information.

  As a display device for a vehicle that displays an information image, a display device that includes a display panel such as a liquid crystal panel in which a plurality of pixels are formed in a matrix and displays an information image that represents information such as vehicle speed on the display panel is disclosed. (See Patent Document 1).

In addition, a display device for a vehicle that includes a display panel that switches and displays a background image according to information content is disclosed (see Patent Document 2). This makes it possible to create a novel effect by utilizing the degree of freedom of display on the display panel. Both the information image representing the vehicle speed and the background image are displayed on the display panel, and the vehicle speed is increased. An embodiment for switching the display of the background image in accordance with the above is described.
JP 2006-21573 A JP 2004-231020 A

  Although not described in Patent Documents 1 and 2, generally, when the traveling mode of the host vehicle is changed, the change of the traveling mode is indicated by an indicator. For example, when a display device is mounted on a hybrid vehicle, when the travel mode is changed from the normal travel mode to the economy / ecology (eco) travel mode, a mark-shaped indicator representing the eco travel mode is displayed, This changes the driving mode. A hybrid vehicle is a vehicle that travels using both an electric motor that generates driving force by electric power and an engine that generates driving force by an internal combustion engine. A driving mode change occurs. However, since the indicator is a small display, there is a problem that it is difficult to recognize the change of the driving mode.

  On the other hand, if the travel mode change is displayed as a large image such as a speedometer image representing the vehicle speed, the change in the travel mode can be easily recognized, but there is a problem that the display panel is enlarged. This problem is not limited to displaying the traveling mode change of the host vehicle, but is a common problem when displaying a mode change of information that causes a mode change between a plurality of modes.

  The present invention has been made in view of such circumstances, and provides a display device capable of easily recognizing a mode change of information in which a mode change occurs between a plurality of modes without increasing the size of the display panel. The purpose is to do.

  In order to achieve the above object, the present invention employs the following technical means.

  The display device according to claim 1, a display panel capable of displaying a first information image that represents at least part of a meter image, the first information in which mode change occurs between a plurality of modes, and display switching of the first information image Control means for controlling the display panel so that the meter image can be displayed, and the control means is interlocked with the mode change of the first information. The at least part of the color of the first information image after the mode change is displayed differently from that before the mode change.

  In this configuration, the display switching of the first information image is performed between the plurality of display states in conjunction with the mode change between the plurality of modes. Therefore, this mode change can be notified by switching the display of the first information image that is at least a part of the meter image.

  Therefore, the mode change of the first information can be notified by switching the display of the first information image. As a result, it is possible to easily display the mode change of information in which the mode change occurs between a plurality of modes.

  In the display device according to claim 2, the meter image is configured by a combination of at least a pointer image and a scale image, and after the mode change, the control unit changes the color of the scale image in the meter image before the mode change. Are displayed differently.

  Hereinafter, a display device according to the present invention will be described with reference to the drawings.

  A display device 1 shown in FIG. 1 is mounted on a hybrid vehicle (hybrid vehicle) that travels using both an electric motor that generates driving force by electric power and an engine that generates driving force by an internal combustion engine. The display device 1 includes a liquid crystal panel 2 as a display panel, a CPU (Central Processing Unit) 3 as a control means, a drawing IC (Integrated Circuit) 4, a ROM (Read Only Memory) 31, and a RAM ( A random access memory) 34 and an image memory 41.

  The liquid crystal panel 2 in which a plurality of pixels are formed in a matrix is an active matrix type liquid crystal panel of a type driven by a thin film transistor (TFT) (not shown). Each pixel contains a red pixel, a green pixel, and a blue pixel, and controls the voltage applied to the red pixel, the green pixel, and the blue pixel in each pixel by applying a voltage to the gate of the TFT. In each pixel, each light transmittance of the red pixel, the green pixel, and the blue pixel is controlled. A light emitting diode that emits white light (not shown) is disposed behind the liquid crystal panel 2 to transmit and illuminate the liquid crystal panel 2. The light emitting diodes transmit and illuminate each pixel in which the light transmittance of each of the red pixel, the green pixel, and the blue pixel is controlled, thereby causing the liquid crystal panel 2 to perform full color display.

  The CPU 3 takes in the power signal, the speed signal, and the travel mode signal from the hybrid control device (Hybrid ECU) 10 of the hybrid vehicle, and inputs them into the drawing IC 4. The CPU 3 operates by being supplied with power from the battery 12 via the ignition switch 11 of the automobile.

  The power signal is a signal that represents the electric power of the electric motor of the hybrid vehicle. The electric power is output from the electric motor (when driving the driving wheels of the hybrid vehicle) and to the electric motor. There are cases where electric power is absorbed (in the case of regenerative power generation). The speed signal is a signal representing the vehicle speed of the hybrid vehicle, and the electric power of the electric motor and the vehicle speed of the hybrid vehicle correspond to the first information.

  The travel mode signal is a signal representing the travel mode of the hybrid vehicle, and the travel mode information corresponds to the second information. For example, in the hybrid vehicle, the driving mode is changed between the economy / ecology (eco) driving mode having high instantaneous fuel consumption and the normal driving mode. Therefore, the travel mode information is information that causes a travel mode change between the eco travel mode and the normal travel mode.

  The ROM 31 includes a polygon data storage unit 32 and an image data storage unit 33. The polygon data of the images 5, 6, 71-73, and 8 shown in FIGS. 2 to 4 are stored in the polygon data storage unit 32, and the image 5 , 6, 71-73, 8 are stored in the image data storage unit 33. The polygon data is composed of a plurality of polygons (generally triangular planes) obtained by dividing the display space of the images 5, 6, 71-73, and 8, and the image data is composed of textures attached to the respective polygons. That is, the images 5, 6, 71-73, 8 are drawn on the liquid crystal panel 2 by pasting each texture of the image data to each polygon of the polygon data.

  In response to an instruction from the CPU 3, polygon data is transferred from the polygon data storage unit 32 to the RAM 34, image data is transferred from the image data storage unit 33 to the image memory 41, and the drawing IC 4 is connected to the polygon data in the RAM 34 and the image memory 41. Based on the image data, the input power signal, speed signal, and driving mode signal, the voltage applied to the red pixel, the green pixel, and the blue pixel in each pixel is controlled, and the display states of the plurality of pixels are controlled. This display state is controlled by continuously switching images of a plurality of frames. Specifically, the display state is controlled by continuously switching images of 30 frames per second, whereby an information image 7 (71 described later) is controlled. -73) is displayed.

  Note that the drawing IC 4 does not transfer the polygon data to the RAM 34 and does not transfer the image data to the image memory 41, based on the polygon data in the polygon data storage unit 32 and the image data in the image data storage unit 33. A configuration in which each display state of a plurality of pixels is controlled is also possible. With the above configuration, the images 5, 6, 71-73, 8 are displayed on the liquid crystal panel 2 as shown in FIGS.

  FIG. 2 shows images 5, 6, 71, 8 displayed on the liquid crystal panel 2 in the normal travel mode, and FIG. 3 shows images 5, 6, 72, 8 displayed on the liquid crystal panel 2 in the eco travel mode. A power meter image 5 that is a first information image represents the electric power of the motor, a pointer image 51 that indicates a pointer that rotates in response to a power signal, a scale image 52 that represents a scale, and a character image 53 that represents a character. Is provided. A speedometer image 6 that is a first information image represents a vehicle speed of the hybrid vehicle, a pointer image 61 that represents a pointer that rotates according to a speed signal, a scale image 62 that represents a scale, and a character image 63 that represents a character. With.

  An information image 7 that is a second information image is composed of a normal mode image 71 that is a display state representing the normal travel mode and an eco mode image 72 that is a display state representing the eco travel mode. The information image 7 is formed as a background image 7 representing the background of the power meter image 5 and the speed meter image 6, and the display switching of the information image 7 is performed between the normal mode image 71 and the eco mode image 72.

  When the travel mode is changed from the normal travel mode to the eco travel mode, the display mode is switched from the normal mode image 71 to the eco mode image 72 in conjunction with this. On the contrary, when the travel mode is changed from the eco travel mode to the normal travel mode, the display is switched from the eco mode image 72 to the normal mode image 71 in conjunction with this. In other words, the information image 7 is an image representing travel mode information that is information that causes a travel mode change between the eco travel mode and the normal travel mode, and an image in which display switching is performed between the normal mode image 71 and the eco mode image 72. It is.

  The indicator image 8 has a mark shape representing a travel mode change to the eco travel mode, and represents a travel mode change from the normal travel mode to the eco travel mode. The indicator image 8 is not displayed in the normal travel mode, but is displayed when the travel mode is changed to the eco travel mode. 2 and 3, for example, the pointer images 51 and 61 are displayed in green, the scale images 52 and 62 and the character images 53 and 63 are displayed in white, the normal mode image 71 is displayed in blue, and the eco mode image is displayed. 72 is displayed in red, the indicator image 8 is displayed in green only in FIG. 3, and the background is displayed in black. That is, the indicator image 8 is not displayed in FIG.

  It is possible to switch the display from the normal mode image 71 to the eco mode image 72 in one frame after changing the driving mode to the eco driving mode, that is, in 1/30 seconds. It is also possible to carry out gradually in 3 seconds. Specifically, in FIG. 4, the eco mode image 72 is displayed in the area A1 of the normal mode image 71, the area A1 in which the eco mode image 72 is displayed is expanded from the area A1 to the area A3, and the driving mode is changed to the eco driving mode. Only the eco mode image 72 is displayed 3 seconds after the change. In other words, the display switching to the eco mode image 72 can be performed as a moving image 73 of 30 seconds. On the contrary, when the travel mode is changed from the eco travel mode to the normal travel mode, display switching from the eco mode image 72 to the normal mode image 71 is performed as a moving image.

  As described above, the information image 7 (71, 72) representing the travel mode information in which the travel mode change occurs between the normal travel mode and the eco travel mode is the background image 7 representing the background of the power meter image 5 and the speed meter image 6. Therefore, it is possible to secure a large display space for the information image 7 while eliminating the need for a unique display space for the information image 7 in the liquid crystal panel 2. In addition, the display switching of the information image 7 is performed between the normal mode image 71 and the eco mode image 72 in conjunction with the change of the travel mode between the normal travel mode and the eco travel mode. For this reason, it is possible to notify the change of the driving mode by switching the display of the information image 7.

  Therefore, the driving mode change can be notified by switching the display of the information image 7 using a large display space in the liquid crystal panel 2 while making the display space unique for the information image 7 unnecessary in the liquid crystal panel 2. As a result, it is possible to easily display a change in the driving mode that occurs between the normal driving mode and the eco driving mode without increasing the size of the liquid crystal panel 2.

  In addition, since the display switching is performed as the moving image 73 between the normal mode image 71 and the eco mode image 72, it is possible to display the change of the driving mode more easily and to enhance the effect.

  Further, in order to display the indicator image 8 having the mark shape indicating the travel mode change to the eco travel mode on the liquid crystal panel 2 in conjunction with the travel mode change to the eco travel mode, the display switching to the eco mode image 72 is performed. By both display of the indicator image 8, it is possible to display the change of the travel mode to the eco travel mode more easily. Since the indicator image 8 requires a small display space in the liquid crystal panel 2, it is not necessary to enlarge the liquid crystal panel 2.

  Next, a control flow executed by the CPU 3 for displaying the information image 7 (71-73) will be described with reference to FIG.

  The ignition switch 11 is turned on and the control flow starts. In step S10, the CPU 3 inputs a travel mode signal from the hybrid control device 10. The following steps S20 to S40 will be described by taking as an example the case where the current travel mode is the normal travel mode.

  In step S20, it is determined whether or not the travel mode has been changed based on the travel mode signal input in step S10. When step S20 is NO, that is, when the travel mode has not been changed from the normal travel mode, this control flow is terminated, and the display of the information image 7 is not switched from the normal mode image 71. On the other hand, when step S20 is YES, that is, when the travel mode is changed from the normal travel mode to the eco travel mode, the information image 7 is switched from the normal mode image 71 to the eco mode image 72 in step S30. Necessary polygon data and image data are set.

  In step S40, in response to an instruction from the CPU 3, the drawing IC 4 pastes each texture of the image data to each polygon of the polygon data set in step S30, and displays the normal mode image 71 to the display shown in FIG. 4 for each frame. The eco mode image 72 is drawn on the liquid crystal panel 2 through the state. Thereby, the display switching of the information image 7 is performed, and this control flow is ended.

  As described above, in the display device 1 according to the present embodiment, the mode change is performed between the power meter image 5 and the speed meter image 6 that are the first information images representing the first information, and the normal travel mode and the eco travel mode that are a plurality of modes. In order to be able to display the liquid crystal panel 2 that is a display panel capable of displaying the information image 7 that is the second information image representing the driving mode information that is the generated second information, and the power meter image 5 and the speed meter image 6. In addition, a CPU 3 and a drawing IC 4 which are control means for controlling the liquid crystal panel 2 are provided so that the display switching of the information image 7 can be performed between the normal mode image 71 and the eco mode image 72 which are a plurality of display states. The information image 7 is at least one of the power meter image 5 and the speed meter image 6, and at least one of the power meter image 5 and the background image 7 representing the background of the speed meter image 6. There, CPU 3 and drawing IC4 is, in conjunction with the mode change of the running mode information, performs display switching information image 7.

  Thereby, the mode change of information in which the mode change occurs between a plurality of modes can be easily displayed without increasing the size of the display panel.

(Modification)
In the above example, the drawing IC 4 pastes each texture of the image data to each polygon of the polygon data set in step S30 and switches the display of the information image 7 in step S40 of FIG. Not limited to. In step S40 of FIG. 5, the drawing IC 4 can also switch the display of the information image 7 using the image data set in step S30. In this case, in FIG. 1, the polygon data storage unit 32 is not used, and the image data necessary for switching the display of the information image 7 from the normal mode image 71 to the eco mode image 72 is stored in the image data storage unit 33. In step S30, the image data is set. In step S40, the drawing IC 4 performs display switching of the information image 7 using the image data set in step S30. Also by this, the same effect as described above can be obtained.

  In the above example, the information image 7 is formed as a background image representing the background of the power meter image 5 and the speed meter image 6, but the present invention is not limited to this. The information image 7 may be at least part of the power meter image 5 and the speed meter image 6, for example, scale images 52 and 62. In this case, the scale images 52 and 62 are displayed in blue instead of the blue normal mode image 71, and the scale images 52 and 62 are displayed in red instead of the red eco-mode image 72. In addition, the information image 7 can be composed of both at least a part of the power meter image 5 and the speed meter image 6 and a background image representing the background of the power meter image 5 and the speed meter image 6. Also by this, the same effect as described above can be obtained.

  In the above-described example, the display device 1 is used for a hybrid vehicle. However, the display device 1 can be used for an automobile that runs only by an engine. In this case, the present invention is applied to travel mode information in which a travel mode change occurs between a plurality of other travel modes instead of the travel mode information in which the travel mode change occurs between the normal travel mode and the eco travel mode. Can do.

  The present invention is not limited to the travel mode information in which the travel mode change occurs between the two travel modes of the normal travel mode and the eco travel mode. The invention can be applied. In this case, instead of the information image 7 for switching the display between the two display states of the normal mode image 71 and the eco mode image 72, an information image for switching the display between three or more display states is formed. Also by this, the same effect as described above can be obtained.

  Moreover, in the above-described example, the present invention is applied to the travel mode information in which the travel mode changes between a plurality of travel modes. However, the present invention is not limited thereto. For example, the present invention can be applied to information relating to an operation status of a device provided in the own vehicle, and information in which an operation mode is changed between a plurality of operation modes. Also by this, the same effect as described above can be obtained.

  Moreover, in the above-mentioned example, although the display apparatus 1 was used for the vehicle, it is not restricted to this. For example, the present invention can be applied to information relating to the operation status of a general device that is not a vehicle-mounted device, and information that causes an operation mode change between a plurality of operation modes. Also by this, the same effect as described above can be obtained.

  In the above example, the display time of the moving image 73 is 3 seconds, but is not limited thereto.

  The liquid crystal panel 2 can be a monochrome liquid crystal panel that does not perform full color display.

  Further, instead of the liquid crystal panel 2 which is a light receiving type (non-light emitting type) display panel, an EL (electroluminescence) display panel which is a light emitting type display panel may be used.

  Further, the present invention is not limited to the above-described examples, and combinations thereof and other various modifications are conceivable.

FIG. 1 is a circuit configuration diagram of a display device 1 according to an embodiment of the present invention. FIG. 2 is a front view of the liquid crystal panel 2 displaying the normal running mode. FIG. 3 is a front view of the liquid crystal panel 2 displaying the eco travel mode. FIG. 4 is a schematic explanatory diagram showing the moving image 73 of the information image 7. FIG. 5 is a flowchart showing a control flow executed by the CPU 3 in FIG.

DESCRIPTION OF SYMBOLS 1 Display apparatus, 2 Liquid crystal panel (display panel), 3 CPU (control means)
31 ROM, 32 Polygon data storage unit, 33 Image data storage unit 34 RAM, 4 Drawing IC (control means), 41 Image memory 5 Power meter image (first information image), 51 Pointer image, 52 Scale image 53 Character image, 6 speedometer image (first information image), 61 pointer image 62 scale image, 63 character image, 7 information image (second information image, background image)
71 Normal mode image (display state), 72 Eco mode image (display state)
73 videos, 8 indicator images, 10 hybrid ECU
11 Ignition switch, 12 Battery

Claims (2)

A display panel capable of displaying a first information image representing at least part of the meter image as first information in which mode change occurs between a plurality of modes;
Control means for controlling the display panel so that the display of the first information image can be switched between the plurality of display states and the meter image can be displayed;
The control means is configured to display at least a part of colors of the first information image after the mode change different from that before the mode change in conjunction with the mode change of the first information. Display device.   The meter image is composed of a combination of at least a pointer image and a scale image, and after the mode change, the control means makes the color of the scale image in the meter image different from that before the mode change. The display device according to claim 1, wherein display is performed.

Images