JP2009008994A - Display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display device which can improve a salability and design by improving its appearance even when the operating state of a system is off. <P>SOLUTION: The display device includes a first display panel 4, a second display panel 5 superposed on the first display panel 4, and a control means 8 for controlling the first and second panels 4 and 5. The display device is configured so that the first display panel 4 can be viewed through the second display panel 5. In this display device, when the operating state of the system is off, the control means 8 makes the second display panel 5 the display state and the first display panel 4 the non-display state. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a display device that displays various types of information through a display panel that is mounted on a vehicle, for example, and arranged to be stacked on each other.

  As this type of display device, for example, a device described in Patent Document 1 below is known. The display device described in the patent document includes a first liquid crystal panel (display panel) and a second liquid crystal panel (display panel) arranged so as to cover the first liquid crystal panel. By configuring the first liquid crystal panel to be visible through the liquid crystal panel, display information displayed on both the first and second liquid crystal panels can be viewed. When such a display device is mounted on a vehicle, power is supplied to the first and second liquid crystal panels when the start state of the vehicle system based on the start of the start switch by the user is turned on. Is displayed.

JP 2003-255391 A

  However, in the vehicular display device having such a configuration, although various information is displayed when the vehicle system is activated, the power supply to the first and second liquid crystal panels is cut off when the vehicle is activated. As a result, there is a problem in that it is not interesting because it is in a non-display state.

  The present invention has been made in view of this point, and provides a display device capable of improving the appearance and improving the merchantability and design even when the system is in an off state. is there.

  In order to achieve the above object, the present invention includes a first display panel, a second display panel arranged so as to cover the first display panel, and the first and second display panels. Control means for controlling, wherein the first display panel is configured to be visible through the second display panel, and the control means is configured to display the second display panel when a system activation state is off. Is in a display state.

  The present invention is further characterized by comprising a battery for supplying power to the second display panel when the system is in an off state.

  Further, the present invention is characterized in that the activation state of the system is an activation state of a vehicle system in which an on / off state is switched based on an operation of an activation switch mounted on the vehicle.

  According to the present invention, it is possible to provide a display device that can achieve the initial object, improve the appearance even when the system is in the off state, and improve the merchantability and design. .

  1 and 2 show an embodiment of the present invention in which a display device according to the present invention is applied to a display device for motorcycles, for example. FIG. 1 is a schematic configuration diagram of the display device, and FIG. 2 shows a system configuration. It is a block diagram.

  In FIG. 1, the display device according to the present embodiment is mounted near the handle of a motorcycle, and includes a fluoroscopic cover 1, a back cover 2, a circuit board 3, a first display panel 4, and a second display. A panel 5, a holder 6, and a frame 7 are provided.

  The see-through cover 1 is made of, for example, a transparent synthetic resin, and is attached to the frame body 7 so as to cover the first and second display panels 4, 5 and the frame body 7.

  The back cover 2 is made of, for example, a light-shielding synthetic resin, and covers the back side of the circuit board 3.

  The circuit board 3 is made of a hard circuit board and is disposed on the back cover 2. In addition to the circuit pattern (not shown), the circuit board 3 is equipped with control means to be described later.

  The first display panel 4 is composed of, for example, a liquid crystal panel in which liquid crystal molecules are sealed between a pair of glass substrates, and is electrically connected to the circuit board 3 via a plurality of lead terminals.

  In addition, the first display panel 4 is configured to display information related to a vehicle state such as a traveling speed and a traveling distance when the power supply is turned on when an activation state of a vehicle system, which will be described later, is on. When the system startup state is in the off state, the power supply is in the off state and the entire surface is in a gray non-display state.

  The second display panel 5 is composed of, for example, a liquid crystal panel in which liquid crystal molecules are sealed between a pair of glass substrates, and is electrically connected to the circuit board 3 via a plurality of lead terminals. The first display panel 4 is in a transparent state without any information display when the vehicle system activation state, which will be described later, is in an on state, and the vehicle system activation state is off. In the state, the power supply is turned on, and for example, information such as text messages and logo marks is displayed positively.

  The holder 6 is made of, for example, milky white synthetic resin, and supports the first and second display panels 4 and 5 on the circuit board 3.

  The frame body 7 is made of, for example, a synthetic resin having a light shielding property, covers the periphery of the second display panel 5, and the circuit board 3, the holder 6, the first and second display panels with the back cover 2. 4 and 5 are stored.

Next, the system configuration of the display device according to the present embodiment will be described.
First, the first and second display panels 4 and 5 are connected to the control means 8, which controls the power supply to the display panels 4 and 5 and their display operations. 5, a ROM (Read Only Memory) for storing a control program and various data necessary for controlling power supply to 5 and their display operations, a CPU (Central Processing Unit) for executing the control program, and the control program It has a readable / rewritable RAM (random access memory), a flash memory, and the like that temporarily store data necessary for execution.

  Further, the control means 8 is connected to the vehicle battery 10 via an ignition switch (start switch) 9 and is also connected to the solar battery 11. In the case of this example, it is assumed that the first display panel 4 operates by receiving power supply from the in-vehicle battery 10, and the second display panel 5 operates by receiving power supply from the solar battery 11. Moreover, the solar battery 11 can apply the solar cell which converts sunlight energy into electric power energy.

  Further, the control means 8 has an input terminal 12 for inputting information (for example, vehicle speed information and travel distance information) from the vehicle body side or various sensors, and the input information from the input terminal 12 is based on the control program. Calculation processing is performed, and vehicle speed information and travel distance information are displayed on the first display panel 4.

  Next, the control of the first and second display panels 4 and 5 executed by the control means 8 based on the operation of the ignition switch 9 will be described.

  First, when the ignition switch 9 is in the on state (when the system startup state is in the on state), power is supplied from the in-vehicle battery 10 to the first display panel 4, and the first display panel 4 includes A display state is displayed in which vehicle speed information and travel distance information calculated based on the control program are displayed. At this time (when the ignition switch 9 is on), power supply from the solar battery 11 to the second display panel 5 is cut off, and the second display panel 5 is in a non-display state (transparent state) in which no information is displayed. ) As a result, the display information of the first display panel 4 can be visually recognized through the transparent second display panel 5.

  When the ignition switch 9 is in an off state (when the system startup state is in an off state), the power supply from the in-vehicle battery 10 to the first display panel 4 is cut off, and the first display panel 4 is entirely gray. It becomes a non-display state colored. At this time (when the ignition switch 9 is off), the second display panel 5 is supplied with power from the solar battery 11, and the second display panel 5 has information such as text messages and logo marks. The display state is displayed. As a result, information such as a character message and a logo mark by the second display panel 5 is displayed in a gray background by the first display panel 4.

  As described above, the display device according to the present embodiment includes the first display panel 4, the second display panel 5 disposed so as to cover the first display panel 4, and the first and first display panels. Control device 8 for controlling two display panels 4 and 5, and the first display panel 4 is configured to be visible through the second display panel 5. In the state, the second display panel 5 is set to the display state and the first display panel 4 is set to the non-display state, whereby the information is displayed on the second display panel 5 with the ignition switch 9 turned off. Thus, the appearance can be improved, and the merchantability and design can be improved.

  In the present embodiment, the solar battery 11 that supplies power to the second display panel 5 is provided, so that the display by the second display panel 5 is performed when the ignition switch 9 is in the off state (system off state). However, the consumption of the in-vehicle battery 10 can be suppressed. In this embodiment, a solar battery is applied as a battery for supplying power to the second display panel 5 when the system startup state is off. However, when the system startup state is off, the solar battery is applied to the second display panel 5. If power can be supplied, the type of battery is arbitrary. The advantage of using a solar battery is that it is particularly suitable for motorcycles used outdoors.

  Further, in this embodiment, the system is in a state that is particularly suitable for motorcycles because the system is in the start state of the vehicle system that is switched on and off based on the operation of an ignition switch (start switch) 9 mounted on the vehicle. be able to.

  In the present embodiment, both the first and second display panels 4 and 5 are liquid crystal panels. However, the display panel may be of any type. For example, the first display panel 4 may be an electroluminescence or fluorescent display tube. Alternatively, as the second display panel 4, electroluminescence that is transparent when the system is off may be used. However, when the second display panel 5 performs positive display as in the above-described embodiment, the first display panel 4 is preferably a liquid crystal panel capable of setting a slightly brighter color such as gray in a non-display state.

  In this embodiment, information such as text messages and logo marks is exemplified as display information displayed on the second display panel 5, but the display information is not limited to these, and pictures, patterns, photographs, and videos are displayed. In addition to the above, it is also possible to display the vehicle state such as the travel distance and the remaining fuel stored in the control means 8 in advance.

1 is a schematic configuration diagram of a display device according to the present invention as an embodiment of the present invention. The block diagram which shows the system configuration | structure by the embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Transparent cover 2 Back cover 3 Circuit board 4 1st display panel 5 2nd display panel 6 Holder 7 Frame 8 Control means 9 Ignition switch (start switch)
10 On-board battery 11 Solar battery 12 Input terminal

Claims (3)

A first display panel;
A second display panel disposed so as to cover the first display panel;
Control means for controlling these first and second display panels,
In the display device configured so that the first display panel can be visually recognized through the second display panel,
The display device according to claim 1, wherein the control means puts the second display panel into a display state when a system activation state is off. The display device according to claim 1, further comprising a battery that supplies power to the second display panel when the system is in an off state. The display device according to claim 1, wherein the activation state of the system is an activation state of a vehicle system in which an on / off state is switched based on an operation of an activation switch mounted on the vehicle.

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