JP4873318B2 - Display device and alarm display method - Google Patents

Description

  The present invention relates to a display device and an alarm display method for generating alarm information using a display element such as a liquid crystal display element.

As this type of display device, for example, a device described in Patent Document 1 below is known. This display device is incorporated in, for example, a dashboard of an automobile, and displays the amount of fuel remaining in the fuel tank (display design) as predetermined information on a display element composed of a liquid crystal display element. When a predetermined remaining amount is exceeded, a fuel supply mark (alarm display design) is displayed blinking. Some display devices of this type blink the background area of the alarm display design while maintaining the display of the alarm display design such as a fuel supply mark.
Japanese Patent Laid-Open No. 10-239133 (FIG. 3)

  However, in the display device described in Patent Document 1, since only the fuel refill mark blinks, the alert display lacks alertness, and what blinks the background area only blinks the background area. Therefore, there is a problem that it is difficult to instantly interpret what the alarm is about.

  The present invention has been made in view of this point, and its main object is to provide a display device and an alarm display method capable of improving alertness and legibility.

In order to achieve the above object, the present invention is a display device that displays an alarm according to input information, and displays a predetermined alarm display design in a background area, and the display panel can be illuminated with different colors. Illuminating means, and a control means for controlling the illuminating means and the display panel, the control means determines whether to perform the alarm display based on the input information, and displays the alarm display. When performing, the illumination color by the illumination means is changed, the brightness of the illumination means is switched so that the luminance of the background region changes at a first predetermined period, and the display and non-display of the warning display design are changed. It is characterized by switching at a predetermined cycle of 2.

  In order to achieve the above object, the present invention is a display device that displays an alarm according to input information, a display panel that displays a predetermined alarm display design in a background area, and at least two types of the display panel. Illuminating means for illuminating with the above-mentioned color, and control means for controlling the illuminating means and the display panel, the control means determines whether or not to perform the alarm display based on the input information, and the alarm display When performing the above, the illumination color of the illuminating means is switched so that the background region changes color at a first predetermined cycle, and the display and non-display of the warning display design are switched at a second predetermined cycle. .

  In order to achieve the above object, the present invention is a display device that displays an alarm in accordance with input information, and can display a predetermined alarm display design and a background area that is the background of the alarm display design by light emission. A display panel; and control means for controlling the display panel, wherein the background area is configured to emit light in at least two types of light emission colors, and the control means performs the alarm display based on the input information. When the warning display is performed, the background region is color-changed at a first predetermined cycle, and the display and non-display of the warning display design are switched at a second predetermined cycle. .

  In order to achieve the above object, the present invention provides a warning display method for displaying a warning display design in a background area, wherein the background area is color-changed at a first predetermined period, and the warning display design is displayed. An alarm display method, wherein non-display is switched at a second predetermined cycle.

  ADVANTAGE OF THE INVENTION According to this invention, the initial purpose can be achieved and the display apparatus and alarm display method which can improve alertness and legibility can be provided.

  1 to 4 show an embodiment of the present invention. FIG. 1 is a front view of a display device according to the present embodiment, FIG. 2 is a cross-sectional view taken along line AA of FIG. 1, and FIG. 4 is a block diagram showing the system configuration of the display device, and FIG. 4 is a timing diagram showing on / off (display and non-display) of the alarm display design and the change in luminance of the light source 2 when the alarm display is performed in this embodiment.

  1 and 2, the display device according to the present embodiment is incorporated in, for example, a combination meter mounted on an automobile, and includes a circuit board 1, a light source (illuminating means) 2, a case 3, and a diffusion plate 4. The display panel 5 and the control means 6 (see FIG. 3) are provided.

  The circuit board 1 is a hard printed circuit board, for example, and is equipped with a light source 2 and a control means 6.

  The light source 2 is formed of a light emitting diode, for example, and is called a backlight that illuminates the display panel 5 from behind. In this example, two types of light sources having different emission colors of white and red are applied. Yes. As such a backlight, a light guide plate that receives light from the light source 2 and emits light in a planar shape may be provided.

  The case 3 is made of, for example, milky white synthetic resin. The case 3 supports the diffusion plate 4 and the display panel 5 on the circuit board 1 and also functions as a light case that guides light from the light source 2 to the display panel 5 side.

  The diffusion plate 4 diffuses the light from the light source 2 and guides it to the display panel 5, and is provided between the light source 2 and the display panel 5.

  The display panel 5 is composed of, for example, a positive display segment type liquid crystal display panel, and includes a first display design (normal display design) 51 formed of an arc-shaped bar graph segment for displaying the amount of remaining fuel in the fuel tank, A second display design (normal display design) 52 that displays the shift position of the transmission device in a segment (group) of a predetermined shape, and the first display design 51 in the normal (non-alarm) time is the remaining fuel amount. As a third display design (ordinary display design) 53 indicating that there is an oil supply mark shape that functions as an alarm display design 54 that performs an alarm by repeating display and non-display at a constant period when an alarm is described in detail later. And a background region 55 that forms the background of the first to third display designs 51 to 53 and the alarm display design 54. Since this display panel 5 is a positive display, when receiving light from the light source 2, the background region 55 emits light, and the first to third display designs 51 to 53 and the alarm display design 54 are in a light-shielded state.

  As shown in FIG. 3, the display panel 5 and the light source 2 configured in this way are each connected to the control means 6.

  In the case of this example, the control means 6 can use a microcomputer that controls and drives the display panel 5 and the light source 2, for example, based on various input information received through a CAN (Control Area Network) communication terminal. The display operation of the display panel 5 and the lighting operation of the light source 2 are controlled.

  That is, the control means 6 receives the input information regarding the remaining fuel amount and the shift position, determines whether or not to perform an alarm display to be described later according to the input information, and when the alarm display is not performed (normal time), The remaining fuel amount and the shift position at that time are displayed through the first display design 51 to the third display design 53. In this normal time, the white light source 2 is turned on to illuminate the background portion 55 in white, and the first display design 51 to the third display design 53 are displayed in a light-shielded state (black).

  On the other hand, the control means 6 performs an alarm determination as to whether or not to display an alarm based on whether or not the input information related to the remaining fuel amount is equal to or less than a predetermined predetermined remaining amount, and as shown in FIG. When it is determined that the amount is less than the remaining amount (alarm display is performed), the alarm mode is turned on (time t1), the white light source 2 is turned off, the red light source 2 is turned on, and the red light source 2 is turned on for the first time. The luminance is switched so as to emit light with high luminance and low luminance at a predetermined cycle T1, and the alarm display design 54 is switched between display and non-display with a second predetermined cycle T2.

  As a result, when the normal mode is switched to the alarm mode, the emission color of the background region 55 changes from white based on the white light source 2 to red based on the red light source 2, and further in the state where the emission color changes to red. The luminance changes between high luminance and low luminance at the first predetermined period T1, and the display and non-display of the alarm display design 54 are switched at the second predetermined period T2. At this time, the first and second predetermined periods T1 and T2 are set so as to be synchronized with each other. When the luminance of the light source 2 is high, the alarm display design 54 is in a display state (light-shielding state), and the light source 2 The alarm display design 54 is not displayed (the same as the background region 55 by being in the transmissive state) when the brightness of the screen is low. In the case of this example, unless the alarm mode is turned off by refueling so that the remaining fuel amount becomes larger than the predetermined remaining amount, the high-luminance and low-luminance emission of the red light source 2 (background region 55) and the alarm The display and non-display of the display design 54 are not terminated. Even when the alarm mode is on, the first and second display designs 51 and 52 are displayed in the same manner as before the alarm mode, and the first and second display designs 51 and 52 are displayed even when the light source 2 is appropriate. It can be recognized.

  As described above, in the present embodiment, the display device displays an alarm according to input information, and the display panel 5 that displays a predetermined alarm display design 54 in the background region 55 and the display panel 5 are illuminated. A light source (illuminating means) 2 and a control means 6 for controlling the light source 2 and the display panel 5; the control means 6 determines whether or not to perform the alarm display based on the input information; Is switched between display and non-display of the alarm display design 54 at the first predetermined cycle T1, and the brightness of the light source 2 is switched so that the luminance of the background area 55 changes at the second predetermined cycle T2. When the display is performed, the alertness can be improved by changing the luminance of the background region 54 wider than the warning display design 54 at the first predetermined period T1, and the warning display design 54 can be displayed. It is possible to improve the readability by switching the non-display at a second predetermined period T2.

  Further, in the present embodiment, the display panel 5 is configured to be able to display normal display designs 51 and 52 in addition to the alarm display design 54, and the normal display designs 51 and 52 are maintained when the alarm display is performed. In this state, by changing the luminance of the background region 55 to high luminance and low luminance, normal display designs 51 and 52 can be displayed in addition to the alarm display design 54.

  Further, in the present embodiment, the light source 2 is configured to be able to illuminate the display panel 5 with different colors, and when the control means 6 performs an alarm display, the illumination color is changed, so that alertness or instantaneous readability (readability) ) It can be further improved.

  Further, according to the present invention, the first predetermined cycle T1 and the second predetermined cycle T2 are synchronized, so that a harmonious alarm display can be performed by the background region 55 and the alarm display design 54.

  In the present embodiment, a light receiving type liquid crystal display panel illuminated by the light source 2 is used as the display panel 5. However, for example, as the display panel 5, a predetermined alarm display design and a background as a background of the alarm display design are used. When a self-luminous electroluminescent display panel that displays a region by light emission is used and alarm display is performed, the luminance of the background region is changed at a first predetermined period and the display and non-display of the alarm display design are performed in the second manner. You may make it switch in a predetermined period.

  In the present embodiment, the background region 55 is set to perform luminance conversion at the first predetermined cycle T1, but when the alarm display is performed, the white light source 2 and the red light source 2 are switched at the first predetermined cycle T1. The background region 55 may be changed in color with two kinds of colors by alternately lighting it.

The front view of the display apparatus by one Embodiment of this invention. AA sectional drawing of FIG. The block diagram which shows the system configuration | structure of the display apparatus by the embodiment. The timing diagram which shows the alarm display by the same embodiment.

Explanation of symbols

1. Circuit board 2. Light source (illumination means)
3 Case 4 Diffuser 5 Display Panel 6 Control Unit 51 First Display Design 52 Second Display Design 53 Third Display Design 54 Alarm Display Design 55 Background Area t1 Time T1 First Predetermined Period T2 Second Predetermined Period

Claims (4)

A display device that displays an alarm according to input information,
A display panel for displaying a predetermined warning display design in the background area;
Illumination means configured to be able to illuminate the display panel with different colors ;
The lighting means and a control means for controlling the display panel,
The control means determines whether or not to perform the alarm display based on the input information, and when performing the alarm display, the illumination color by the illumination means is changed, and the background area is changed at a first predetermined cycle. While switching the brightness of the illumination means so that the brightness changes ,
A display device that switches between display and non-display of the warning display design at a second predetermined period. A display device that displays an alarm according to input information,
A display panel for displaying a predetermined warning display design in the background area;
Illumination means for illuminating the display panel with at least two colors;
The lighting means and a control means for controlling the display panel,
The control means determines whether or not to perform the alarm display based on the input information, and when performing the alarm display, the illumination color of the illumination means so that the background region changes color in a first predetermined cycle. And switching between display and non-display of the warning display design at a second predetermined cycle. A display device that displays an alarm according to input information,
A display panel capable of displaying a predetermined warning display design and a background area as a background of the warning display design by light emission;
Control means for controlling the display panel,
The background region is configured to emit light in at least two kinds of emission colors;
The control means determines whether or not to perform the alarm display based on the input information, and when the alarm display is performed, the background area is color-changed at a first predetermined period and the alarm display design is displayed and A display device, wherein non-display is switched at a second predetermined period. An alarm display method for displaying an alarm display design in a background area,
A warning display method characterized by changing the color of the background area at a first predetermined cycle and switching between display and non-display of the warning display design at a second predetermined cycle.

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