JP2008268770A - Display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To display desired information by simple operations by operation switches in a display device which displays a plurality of pieces of information by switching them. <P>SOLUTION: The display device 10 is provided with: a display panel 11; a storage device 15; operation switches 12, 13 which perform a first operation, a second operation and a third operation; and a controller 14 which controls a display state of the display panel 11 by the respective operations of the first operation and the third operation and controls a storage state of the storage device 15 by the second operation, stores an information name concerning information displayed on a liquid crystal panel 11 in the storage device 15 by the second operation, reads the information name from the memory 15 and displays the information concerning the information name on the liquid crystal panel 11 by the third operation. Thus, the desired information is displayed by the simple operations by the operation switches. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a display device that switches and displays a plurality of pieces of information.

  In recent years, information that can be used in connection with vehicles has increased due to technological developments, and in order to inform the driver of this large amount of information in a limited space, a multi-function display device has been installed as a display device for vehicles. ing. The multi-function display device includes a display panel such as a liquid crystal panel, an operation switch, and a control device that switches a plurality of information to be displayed on the display panel by repeating the same operation using the operation switch.

  This multi-function display device can inform the driver of a lot of information in a limited space.

  However, in order to obtain desired information from many pieces of information, it is necessary to repeatedly perform the same operation using the operation switches until the desired information is displayed on the display panel.

  The present invention has been made in view of such circumstances, and an object of the present invention is to display desired information by a simple operation using an operation switch in a display device that switches and displays a plurality of pieces of information.

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

  The display device according to claim 1 includes a display panel, a storage device, an operation switch for performing the first operation, the second operation, and the third operation, and the operation of the display panel by each of the first operation and the third operation. A control device that controls the display state and controls the storage state of the storage device by a second operation, and switches a plurality of information to be displayed on the display panel each time the first operation is repeated. The information name related to the information displayed on the display panel is stored in the storage device, and the information name is read from the storage device and displayed on the display panel by the third operation.

  In this configuration, the information name related to the information displayed on the display panel is stored in the storage device by the second operation, the information name is read from the storage device by the third operation, and the information related to the read information name Is displayed on the display panel. Thus, the information name related to the desired information can be stored in the storage device, the information name can be read from the storage device by the third operation, and the desired information can be displayed on the display panel. Therefore, desired information can be displayed by a simple operation by the third operation of the operation switch.

  The display device according to claim 2 stores the information name in the storage device every time the second operation is repeated, and reads and switches the information name from the storage device every time the third operation is repeated. Information is displayed on the display panel, and the control device limits the number of information names stored in the storage device to a predetermined number less than a plurality.

  In this configuration, the number of information names to be stored in the storage device is limited to a predetermined number less than a plurality, and each time the third operation is repeated, the information name is switched and read from the storage device. The information concerning is displayed on the display panel. Accordingly, it is possible to reduce the number of pieces of information to be switched and displayed by repeating the third operation, rather than a plurality of pieces of information to be switched and displayed by repeating the first operation. That is, the number of times of repeating the third operation to display the desired information is smaller than the number of times of repeating the first operation to display the desired information. Therefore, the desired information can be displayed by a simple operation that requires a small number of repetitions of the third operation of the operation switch.

  In the display device according to claim 3, when a predetermined number of information names are stored in the storage device, one information name is erased from the storage device by the second operation and displayed on the display panel. An information name related to information is stored in a storage device. Thereby, the information name concerning the desired information can be newly stored in the storage device while limiting the number of information names to be stored in the storage device to a predetermined number less than a plurality.

  The display device according to claim 4 is characterized in that the predetermined number is one. Thereby, since the information name memorize | stored in the memory | storage device becomes one, the information which concerns on this information name can be displayed as desired information by one 3rd operation. In other words, desired information can be displayed by a simple operation that requires only one third operation by the operation switch.

  The display device according to claim 5 is characterized in that the operation switch includes a first operation switch for performing a first operation and a second operation switch for performing a second operation and a third operation. Thereby, the distinction between the second operation and the third operation with respect to the first operation can be facilitated.

  The display device according to claim 6, wherein the third operation is an operation of pressing the second operation switch, and the second operation is an operation of pressing the second operation switch for a longer time than the third operation. . Thereby, the distinction between the second operation and the third operation can be facilitated.

  In the display device according to claim 7, the operation switch includes a first operation switch for performing a first operation, a second operation switch for performing a second operation, and a third operation switch for performing a third operation. Features. Thereby, the first operation, the second operation, and the third operation can be easily distinguished.

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

  As shown in FIG. 1, the multi-function display device 10 that is a display device is arranged in a combination meter 1, and the combination meter 1 is arranged in front of a driver's seat of an automobile and displays various information related to the automobile. The combination meter 1 according to the present embodiment includes a speedometer 2, a tachometer 3, a gear change display unit 4, and a multifunction display device 10. The speedometer 2 is a pointer instrument that displays the traveling speed of the automobile, the tachometer 3 is a pointer instrument that displays the engine speed of the automobile, and the gear change display unit 4 is a gear change state of the automobile. It is a display part which displays.

  As shown in FIGS. 1 and 2, the multi-function display device 10 includes a liquid crystal panel 11 as a display panel, a first operation switch 12 and a second operation switch 13 as operation switches, a control device 14, and a storage device. And a memory 15.

  The liquid crystal panel 11 is, for example, an active matrix type display panel driven by a thin film transistor (TFT) (not shown), and a plurality of pixels are formed in a matrix. The voltage applied to each pixel is controlled by applying a voltage to the gate of the TFT, thereby controlling the light transmittance of each pixel. A light source such as a light emitting diode (not shown) is disposed behind the liquid crystal panel 11, and the light emitting diode transmits and illuminates each pixel whose light transmittance is controlled, thereby causing the liquid crystal panel 11 to display.

  The control device 14 composed of a microcomputer or the like receives various information signals and an operation signal of an operation (short press operation) of pressing the first operation switch 12 as the first operation, and based on this, the liquid crystal panel 11 Configured to control display. Thereby, the control apparatus 14 repeats the short press operation of the 1st operation switch 12, and is several information, such as the average fuel consumption information of the said vehicle which is information, the driving | running | working distance information of the said vehicle, external temperature information, time information, etc. Information is switched and displayed on the liquid crystal panel 11.

  Specifically, as shown in FIG. 3, each time the first operation switch 12 is repeatedly pressed, the mode M10 that displays the average fuel consumption information is switched to the mode M20 that displays the travelable distance information, and the mode M20 is removed from the mode M20. The mode is switched to the mode M30 for displaying the temperature information, the mode M30 is switched to the mode M40 for displaying the time information, this is repeated for the number of information, and the mode M10 is returned. As long as the short pressing operation of the first operation switch 12 is repeated, the above switching is repeated.

  As shown in FIG. 4A, in the mode M10, the liquid crystal panel 11 displays the cumulative travel distance information 11b of the vehicle in addition to the average fuel consumption information 11a. As shown in FIG. 4B, in the mode M20, the liquid crystal panel 11 displays cumulative travel distance information 11b of the vehicle in addition to the travelable distance information 11c. As shown in FIG. 4C, in the mode M30, the liquid crystal panel 11 displays the accumulated travel distance information 11b of the vehicle in addition to the outside air temperature information 11d. In this way, every time the first operation switch 12 is pressed for a short time, the information displayed on the liquid crystal panel 11 is switched, but the cumulative travel distance information 11b is always displayed.

  The memory 15 is a memory including a nonvolatile memory or a backup RAM (random access memory) that can electrically rewrite stored data. The control device 14 stores the information name related to the information displayed on the liquid crystal panel 11 in the memory 15 by an operation (long press operation) of pressing the second operation switch 13 as the second operation. In addition, the control device 14 reads out the information name from the memory 15 by pressing the second operation switch 13 that is the third operation (short pressing operation), and causes the liquid crystal panel 11 to display information related to the information name.

  For example, as shown in FIG. 4B, when the travelable distance information 11c is displayed on the liquid crystal panel 11, the travelable distance that is the information name related to the travelable distance information 11c is set to the length of the second operation switch 13. It is stored in the memory 15 by a push operation. Then, the travelable distance is read from the memory 15 by a short press operation of the second operation switch 13, and the travelable distance information 11 c related to the travelable distance is displayed on the liquid crystal panel 11.

  Thereby, the travelable distance related to the travelable distance information 11c is stored in the memory 15 as desired information, and the travelable distance is read from the memory 15 by a short press operation of the second operation switch 13, and this desired The travelable distance information 11c can be displayed on the liquid crystal panel 11 as information. That is, the desired information can be displayed by a simple operation of a short press operation of the second operation switch 13.

  When information names are stored in the memory 15, the information names already stored in the memory 15 are deleted. For example, in the state where the outside temperature is already stored in the memory 15, when the travelable distance is stored in the memory 15, the outside temperature stored in the memory 15 is deleted.

  Thereby, since the information name memorize | stored in the memory 15 becomes one, the information which concerns on this information name can be displayed as desired information by short-pressing operation of the 2nd operation switch 13 once. it can. That is, desired information can be displayed by one operation by the second operation switch 13.

  Note that a short press refers to a press in which the first operation switch 12 and the second operation switch 13 are pressed for less than 2 seconds, and a long press refers to a press in which the second operation switch 13 is pressed for 2 seconds or more. Further, by providing the first operation switch 12 and the second operation switch 13, it is possible to easily distinguish the second operation from the first operation and the third operation. The second operation is a long press operation and the third operation is a short press. By making the operation, the distinction between the second operation and the third operation can be facilitated.

  Next, a control flow executed by the control device 14 in the multi-function display device 10 configured as described above will be described with reference to FIG.

  In step S10, information is displayed on the liquid crystal panel 11. For example, the mode M10 shown in FIG. In step S20, it is determined whether or not the first operation switch 12 has been short-pressed. If “YES” is determined in the step S20, that is, if it is determined that the first operation switch 12 is short-pressed, the next information is displayed on the liquid crystal panel 11 in a step S30. Specifically, the mode M10 is switched to the mode M20, and the mode M20 shown in FIG.

  After step S30, it is determined whether or not the second operation switch 13 has been operated in step S40. If “NO” is determined in the step S20, that is, if it is determined that the first operation switch 12 is not short-pressed, it is determined whether or not the second operation switch 13 is operated in the step S40. . If “NO” is determined in the step S40, that is, if it is determined that the second operation switch 13 is not operated, the process returns to the step S10.

  If “YES” is determined in the step S40, that is, if it is determined that the second operation switch 13 is operated, it is determined whether or not the second operation switch 13 is pressed and held in step S50. If it is determined as “YES” in step S50, that is, if it is determined that the second operation switch 13 has been operated for a long time, the display information name is stored in step S60. Specifically, when the travelable distance information 11c in mode M20 is displayed on the liquid crystal panel 11, the travelable distance is stored in the memory 15. After step S60, the process returns to step S10.

  Here, for example, when the outside air temperature is already stored in the memory 15, the outside air temperature is deleted and the travelable distance is stored in the memory 15. Thereby, the information name memorize | stored in the memory 15 is one.

  When it is determined as “NO” in step S50, that is, when it is determined that the second operation switch 13 is not operated by long pressing, that is, when it is determined that the second operation switch 13 is operated by short pressing, Display stored information. Specifically, when the travelable distance is stored in the memory 15, the travelable distance is read from the memory 15 and the travelable distance information 11 c is displayed on the liquid crystal panel 11.

  Thus, the travelable distance information 11c can be displayed as desired information by performing a short press operation of the second operation switch 13 once. That is, desired information can be displayed by one operation by the second operation switch 13.

  After step S70, the process returns to step S10. After returning to step S10, the above control flow is repeated.

  In the above-described example, one information name is stored in the memory 15, but the present invention is not limited to this. The number of information names stored in the memory 15 can be limited to a predetermined number smaller than the number of information displayed by repeating the short press operation of the first operation switch 12. In this case, by repeating the short pressing operation of the second operation switch 13, a predetermined information name is read from the scale 15, and information related to this information name is displayed on the liquid crystal panel 11 as desired information. For example, assuming that the number of information displayed by repeating the short press operation of the first operation switch 12 is 20, and the number of information names stored in the memory 15 is 3, the shortness of the first operation switch 12 While the pressing operation needs to be repeated 20 times, the desired information can be displayed on the liquid crystal panel 11 by repeating the second operation switch 13 by repeating the pressing operation 3 times. That is, the desired information can be displayed by a simple operation that requires fewer operations to repeat the operation of the second operation switch 13.

  Further, when the number of information names stored in the memory 15 is limited to three, and when three information names are already stored in the memory 15, the long operation of the second operation switch 13 causes the memory One information name is deleted from 15 and the information name related to the information displayed on the liquid crystal panel 11 is stored in the memory 15. As a result, the number of information names stored in the memory 15 can be limited to 3 or less, and a new information name related to desired information can be stored in the memory 15.

  As described above, the multi-function display device 10 that is a display device according to the present embodiment includes a liquid crystal panel 11 that is a display panel, a memory 15 that is a storage device, and operation switches that perform a first operation, a second operation, and a third operation. Control for controlling the display state of the liquid crystal panel 11 by a certain first operation switch 12 and second operation switch 13 and each operation of the first operation and the third operation, and controlling the storage state of the memory 15 by the second operation Each time the short operation of the first operation switch 12 as the first operation is repeated, a plurality of information is switched and displayed on the liquid crystal panel 11 and the long operation of the second operation switch 13 as the second operation is displayed. By the operation, the information name related to the information displayed on the liquid crystal panel 11 is stored in the memory 15, and the information is read from the memory 15 by the short press operation of the second operation switch 13 as the third operation. The information relating to read the name of the information name to be displayed on the liquid crystal panel 11. Thus, desired information can be displayed by a simple operation using the operation switch.

(Modification)
The first operation switch 12 and the second operation switch 13 can be shared as one operation switch. In this case, the short press operation of the first operation switch 12 is a short press operation of the operation switch, the short press operation of the second operation switch 13 is two short press operations by the operation switch continuously, and the second operation switch 13 Is a long press operation by an operation switch. The continuous two short press operations by the operation switch means, for example, that the short press operation is continuously performed twice within 3 seconds. Thereby, it is possible to facilitate the distinction between the first operation, the second operation, and the third operation while simplifying the configuration of the multi-function display device 10. Therefore, the same effect as described above can be obtained while obtaining this effect.

  It is also possible to perform the second operation and the third operation with different operation switches. For example, the second operation is performed by the second operation switch 13 and a third operation switch for performing the third operation is newly provided. That is, a first operation switch 12 that performs a first operation, a second operation switch 13 that performs a second operation, and a third operation switch that performs a third operation are provided. Thereby, the first operation, the second operation, and the third operation can be easily distinguished.

  Further, the liquid crystal panel 11 can be a simple matrix type liquid crystal panel, and even in this case, the same effect as described above can be obtained.

  Further, instead of the liquid crystal panel 11 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 front view of a combination meter 1 including a multi-function display device 10 which is a display device according to an embodiment of the present invention. FIG. 2 is a circuit configuration diagram of the multi-function display device 10 shown in FIG. FIG. 3 is a flowchart showing a switching flow of information displayed on the liquid crystal panel 11 in FIG. FIG. 4 is a front view showing an example in which the liquid crystal panel 11 in FIG. 2 displays information. FIG. 5 is a flowchart showing a control flow executed by the control device 14 in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Combination meter, 2 Speedometer, 3 Tachometer, 4 Gear change display part 10 Multifunctional display apparatus (display apparatus), 11 Liquid crystal panel (display panel)
11a Average fuel consumption information (information), 11b Cumulative travel distance information 11c Travelable distance information (information), 11d Outside air temperature information (information)
12 First operation switch (operation switch), 13 Second operation switch (operation switch)
14 control device, 15 memory (storage device)

Claims (7)

A display panel;
A storage device;
An operation switch for performing a first operation, a second operation, and a third operation;
A control device that controls a display state of the display panel by each operation of the first operation and the third operation, and controls a storage state of the storage device by the second operation;
Each time the first operation is repeated, a plurality of information is switched and displayed on the display panel,
By the second operation, an information name related to information displayed on the display panel is stored in the storage device,
The display device, wherein the information name is read from the storage device and the information related to the information name is displayed on the display panel by the third operation. Each time the second operation is repeated, the information name is stored in the storage device,
Each time the third operation is repeated, the information name is switched and read from the storage device, and the information related to the information name is displayed on the display panel,
The display device according to claim 1, wherein the control device limits the number of the information names stored in the storage device to a predetermined number less than the plurality.   When the predetermined number of the information names are stored in the storage device, the second operation deletes one information name from the storage device and relates to the information displayed on the display panel. The display device according to claim 2, wherein an information name is stored in the storage device.   The display device according to claim 2, wherein the predetermined number is one.   The said operation switch is provided with the 1st operation switch which performs said 1st operation, and the 2nd operation switch which performs said 2nd operation and said 3rd operation, Any one of Claim 1 thru | or 4 characterized by the above-mentioned. A display device according to claim 1. The third operation is an operation of pressing the second operation switch,
The display device according to claim 5, wherein the second operation is an operation of pressing the second operation switch for a longer time than the third operation.   The operation switch includes a first operation switch for performing the first operation, a second operation switch for performing the second operation, and a third operation switch for performing the third operation. The display device according to any one of claims 4 to 4.

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