JP2009107409A - Vehicular display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display device suppressing synchronous deviation of the display in the display of a plurality of warning symbols, and shortening display starting delay of the symbols. <P>SOLUTION: The combined display device 1 is provided with: a first display device 2 having a first control part 21 for controlling a liquid crystal panel 28 displaying an image; and a second display device 3 having a main control part 31 for light emission-displaying an indicator 37 related to a warning image 26 of the images, and periodically displays the warning image and the indicator at generation of abnormality. The main control part is provided with a bright display starting timing adjustment part repeating bright display and dark display of the indicator at constant period S and varying the starting timing of the bright display. The first control part transfers the display data of one picture degree and memorizes them. In the first control part, on the other hand, a preparation completion timing Tf at which display preparation of the warning image is completed based on the display data, is previously set. The bright display starting timing adjustment part of the main control part makes the starting timing of the bright display of the indicator overlap the preparation completion timing. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a display device provided with a meter or the like, and is suitable for use in, for example, an automobile.

  As a conventional display device, for example, a pointer display or a display device that displays a caution display such as various warnings for alerting a driver as a so-called meter image formed on a liquid crystal display has been proposed ( Patent Document 1). For example, a liquid crystal display is placed in front of the driver's seat in the vehicle, and a driver's seat belt warning image that alerts the driver when the driver does not correctly tighten the seat bell is displayed on the liquid crystal display as a meter image. Is displayed.

In addition to the conventional meter display, the conventional technology has proposed a display device that displays a screen of a navigation device.
JP 2004-157434 A

  In the display device described above, a control unit that controls the display device controls a drawing control unit that controls a liquid crystal display that displays an image, and a meter function as a pointer instrument such as a vehicle speedometer or a tachometer. The main control unit may be different. That is, for example, a drawing control unit that integrates a drawing unit of the navigation device and a drawing unit of the meter control unit may be provided separately from the main control unit. When the driver's seat belt warning image is displayed on the liquid crystal display, a display command signal for the warning image is transmitted from the main control unit to the drawing control unit, and the drawing control unit performs drawing according to the display command signal. A predetermined warning symbol is processed by the circuit and the image memory, and the warning symbol is blinked and displayed on, for example, a liquid crystal display.

  In recent years, in order to reduce wire harnesses used as information transmission means in vehicles, the information is often transmitted by multiplex communication via an in-vehicle LAN. However, when this information transmission technique is applied to the above-described conventional display device, a plurality of orders are transmitted by a single transmission line in a period and order of a standard determined in multiplex communication. There was a risk of delay.

  As a result of intensive studies, the inventor has found the following problem due to information communication delay. For example, in the case where a passenger seat belt warning symbol is provided separately from the driver seat belt warning symbol and both of the seat belt warning symbols are to be displayed in a blinking manner, the timing of the bright display and the dark display by the blinking is synchronized. There are problems such as inability to take.

  As a method of displaying the passenger seat seat belt warning symbol, since the liquid crystal display is relatively expensive, the LED (light emitting diode) provided on the dash panel on the passenger seat side is usually directly driven by the main control unit. However, in order to start the image display of the liquid crystal display by the drawing control unit, it takes time for the initialization process to read out the image data from the image memory. Therefore, the main control unit is ready to blink the LED. In spite of being set, there is a non-display time during which the image display by the drawing control unit is not possible.

  The present invention has been made in consideration of such circumstances, and its purpose is to suppress a display synchronization delay in the display of a specific symbol such as a plurality of warnings and to reduce a delay in the start of display of the specific symbol. It is to provide a possible display device.

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

  That is, according to the first to third aspects of the invention, a liquid crystal panel that displays various types of information as an information image in a vehicle, a first display device that includes a first control unit that controls the liquid crystal panel, and a specific image among the information images. And a second display device having a second control means for controlling the light source, and periodically displaying a specific image and a display design at a specific time. In the composite display device, the first control unit stores an information image including a specific image as image data, while the stored image data is used to display one screen of display data to be displayed on the screen of the liquid crystal panel. The image data is transferred to and stored in an image memory different from the data storage destination, and a drawing unit for displaying a specific image on the liquid crystal panel based on the display data is provided. The means includes a bright display start timing adjusting unit that repeats bright display and dark display in the display design by blinking the light source at a constant period, and makes the start timing of the bright display variable. In the first control unit, The display data for one screen to be displayed on the liquid crystal panel is transferred from the storage destination to the image memory and stored, while the preparation completion time when the preparation for displaying the specific image on the liquid crystal panel based on the display data is completed The bright display start timing adjusting means is characterized in that the bright display start timing of the design display is wrapped with the preparation completion timing.

In this invention, the composite display device that periodically displays the specific image and the display design at the specific time stores the information image including the specific image as image data by the first control unit, and one screen of the image data. The display data is transferred to the image memory and stored, and a specific image is displayed on the liquid crystal panel based on the display data, and the light source is blinked at a constant cycle by the second control means, thereby clearly displaying the display design. And the dark display will be repeated,
In addition, the second control means has bright display start timing adjusting means for changing the bright display start timing, and the bright display start timing adjusting means displays the specific image on the liquid crystal panel in the first control means. The start time of the bright display of the design display is overlapped with the preparation completion time when the preparation for display on the display is completed.

  According to this, the bright display start timing of the design display that is repeated at a constant cycle is displayed on the liquid crystal panel after the bright display and the dark display of the design display without changing the fixed cycle. It is possible to synchronize with the display start time of the specific image.

  Therefore, it is possible to suppress the display synchronization delay in the display of the specific image and the display design at the specific time, and to shorten the display start delay of the display design displayed prior to the specific image display.

  According to the second aspect of the present invention, the bright display start time adjusting means changes the start time of the bright display for the first time in the bright display and the dark display of the design display repeated at a constant cycle from the preparation completion time to the fixed cycle. It is characterized by the time of subtracting multiples.

  According to this, when a specific time for periodically displaying a specific image and a display design occurs, a predetermined period multiples before the specific image is displayed on the liquid crystal panel between the specific time and the preparation completion time. Only the bright display and the dark display of the design display can be repeated. In other words, it is possible to start repeating the bright display and the dark display of the design display with a slight delay from the occurrence of the specific time without waiting for the preparation to display the specific image on the liquid crystal panel at the specific time. is there.

  According to the invention described in claim 3, the specific image and the design display indicate a caution symbol for calling attention to the driver and an occupant other than the driver, and the specific image is the driver The display design is arranged in the line-of-sight direction of the driver and the occupant.

  In such an invention, the specific image and the design display are intended to alert the driver or the like, and therefore it is necessary to achieve the display purpose at the specific time, but the specific image and the design display are synchronized. Therefore, the driver can easily visually recognize the specific image and the design display which are related attention symbols.

In the inventions according to claims 4 to 5, a liquid crystal panel for displaying various information as an information image in a vehicle, and a display device having a first control means for controlling the liquid crystal panel;
A sound generator that generates a specific sound related to the specific image in the information image, and a second display device that has a second control unit that controls the sound generator, and periodically outputs the specific image and the specific sound at a specific time. In the composite device that shows and alerts the occupant, the first control means stores the information image including the specific image as image data, while the stored image data is displayed on the screen of the liquid crystal panel. Display data for a minute is transferred to and stored in an image memory different from the storage destination of the image data, and a drawing means for displaying a specific image on the liquid crystal panel based on the display data is provided. The sounding body is sounded at a cycle to repeat sound generation and silence in a specific sound, and also includes a sound generation start time adjusting means for making the sound generation start time variable. The display data for one screen to be displayed on the liquid crystal panel in the means is transferred from the storage destination to the image memory and stored, while the preparation completion time for completing the preparation for displaying the specific image on the liquid crystal panel based on the display data. The sound generation start time adjusting means is set in advance and wraps the sound generation start time of the specific sound at the preparation completion time.

In such an invention, a composite display device that periodically shows a specific image and a specific sound at a specific time to alert the occupant stores an information image including the specific image as image data by the first control means, and the image data The display data for one screen is transferred to and stored in the image memory, and a specific image is displayed on the liquid crystal panel based on the display data.
By sounding the sounding body at a constant cycle by the second control means, sound generation and silence are repeated in a specific sound.
In addition, the second control means has a sounding start time adjusting means for making the sounding start time variable, and the sounding start time adjusting means displays a specific image on the liquid crystal panel in the first control means. When the preparation is completed, the start time of the specific sound is wrapped.

  According to this, the specific sound displayed on the liquid crystal panel is delayed with respect to the specific sound generation and silence without changing the specific sound period, with the specific sound generation and silence being repeated at a constant frequency being changed. It is possible to synchronize with the display start time of the image.

  Therefore, it is possible to suppress the synchronization shift between the specific image and the specific pronunciation that are periodically shown at the specific time, and it is possible to shorten the sound generation start delay of the specific pronunciation that precedes the specific image.

  According to the fifth aspect of the present invention, the sounding start time adjusting means subtracts a multiple of a certain period from the preparation completion time, and the sounding start time adjusting means repeats the sounding of a specific sound repeated in a certain period and the first sounding period in silence. It is characterized by the time.

  According to this, when a specific time periodically indicating a specific image and a specific sound occurs, a specific multiple of a certain period is required before displaying the specific image on the liquid crystal panel between the specific time and the preparation completion time. Can repeat specific pronunciation and silence. In other words, it is possible to start repeating specific sound generation and silence with a slight delay from the occurrence of the specific time without waiting for completion of preparation for displaying the specific image on the liquid crystal panel at the specific time.

  Hereinafter, embodiments in which the display device of the present invention is applied to the vehicle display device 1 will be described with reference to the drawings.

(First embodiment)
FIG. 1 shows the vicinity of a driver's seat of an instrument panel of an automobile equipped with a vehicle display device 1, and FIG. 2 shows an electric circuit configuration of the vehicle display device 1.

  As shown in FIGS. 1 and 2, the vehicular display device 1 functions as a combination meter, and a first display device 2 that displays vehicle information as an image and a display design related to the image are transmitted and illuminated to emit light. And a second display device 3 for displaying.

  The first display device 2 includes a liquid crystal panel 28, a backlight 29, a drawing unit 22, a first control unit 21, and the like.

  The liquid crystal panel 28 is a TFT transmissive liquid crystal panel, and is installed in front of the driver seat so that the screen 28a faces the driver seat of the vehicle. The liquid crystal panel 28 is a dot matrix type having a plurality of pixels arranged in a matrix, and realizes image display by driving each pixel. Here, each pixel of the liquid crystal panel 28 is composed of sub-pixels of three colors provided with red (R), green (G), and blue (B) color filters, respectively, and a full color of an image is displayed on the screen 28a. Display is possible.

  Here, as shown in FIG. 2, the liquid crystal panel 28 of the present embodiment displays a meter display pixel region that displays a meter image 25 as a meter image and includes a plurality of pixels and a warning image 26 that includes a plurality of pixels. And an abnormal display pixel region.

  Specifically, the meter image 25 is an image for instructing the vehicle occupant the state value of the vehicle travel information. In this embodiment, the shift position of the transmission of the vehicle (for example, D range, reverse) A transmission position image (hereinafter also referred to as a first vehicle state image) indicating a range and the like, and a turn image (hereinafter also referred to as a second vehicle state image) indicating a turn signal of the vehicle.

  The warning image 26 is an image for calling attention to an occupant such as a driver when the state of the vehicle is a state to be noted or an abnormal state. In other words, the warning image 26 is for warning or warning the driver that the state has occurred. In the present embodiment, the warning image 26 includes a driver seat belt warning image, and the driver seat belt warning image is displayed when the driver does not properly tighten the seat belt (hereinafter referred to as an abnormal state). The display of the image prompts the driver to wear the seat belt.

  The meter image 25 and the warning image 26 display various vehicle information on the liquid crystal panel 28, and the first display device 2 constitutes a multi-display D.

  Note that the meter image is not limited to the first and second vehicle state images 25 of the present embodiment, but is a vehicle speed image indicating vehicle speed (hereinafter also referred to as a third vehicle state image), and a rotation speed image indicating engine rotation speed ( Hereinafter, it is also referred to as a fourth vehicle state image), a water temperature image indicating the temperature of engine cooling water (hereinafter also referred to as a fifth vehicle state image), and a remaining amount image indicating the remaining amount of fuel (hereinafter also referred to as a sixth vehicle state image). ). In this case, the third to sixth vehicle state images are displayed by an analog display method for instructing the state value (physical quantity) in the meter display pixel area. For example, the third vehicle state image (vehicle speed image) and the third vehicle state image are displayed. The four vehicle state images (rotational speed images) correspond to a vehicle speedometer S and a rotational speed meter T, which will be described later. That is, instead of the vehicle speed meter S and the tachometer T of the first display device 2, a multi-display, a vehicle speed meter (vehicle speed image), and a tachometer (rotation number image) constitute the first display device. Become.

  As shown in FIG. 2, the backlight 29 includes a light source such as a light emitting diode (hereinafter also referred to as a first light emitting diode) (not shown) and a diffusion plate. The first light emitting diode is of a chip type and is installed obliquely behind the liquid crystal panel 28 in the vehicle. The light emitting diode is electrically connected to the first control unit 21, and emits light when driven according to a light emission drive signal supplied from the first control unit 21. The diffusion plate is formed of a light transmissive resin in a flat plate shape, and is arranged behind the liquid crystal panel 28 in parallel with the panel. The diffusing plate diffuses incident light from the first light emitting diodes located adjacent to each other and emits the light from the light emitting surface on the liquid crystal panel 28 side, thereby making the light emission luminance on the light emitting surface substantially uniform over the entire area. As described above, the backlight illuminates the entire liquid crystal panel 28 from the rear by the light from the light emitting surface.

  As shown in FIG. 2, the drawing unit 22 includes a drawing circuit 23 and an image memory 24. The drawing circuit 23 is composed of an IC chip such as an ASIC, is installed behind the first light emitting diode in the vehicle, and is electrically connected to the liquid crystal panel 28 and the first control unit 21. The image memory 24 is composed of an EEPROM and is electrically connected to the drawing circuit 23. In the drawing unit 22, a meter image 25 and a warning image 26 are stored in advance as image information before the factory shipment of the apparatus 2. In the image memory 24, the liquid crystal panel is displayed in the meter image 25 and the warning image 26 stored in advance. Display data for one screen to be displayed on the 28 screens 28a is transferred and stored. As described above, the drawing circuit 23 reads the predetermined meter image 25 and warning image 26 through the image memory 24 in response to the display command signal from the first control unit 21, and in accordance with the display command signal, each pixel region of the liquid crystal panel 28 is read. The meter image 25 and the warning image 26 are displayed on the screen 28a by driving each constituent pixel.

  The drawing circuit 23 repeats display and non-display of the warning image 26 at a constant period S in accordance with the display command signal in the abnormal state (hereinafter, warning symbol blinks). Such a warning image 26 can easily read the abnormal state of the driver seat belt by blinking the warning symbol.

  The 1st control part 21 consists of a known microcomputer which has a control circuit and memory, and is installed in the back of the 1st light emitting diode in vehicles. The control circuit is electrically connected to a first light emitting diode of the backlight 29, a drawing circuit 23 of the drawing unit 22, and a temperature sensor (not shown) that detects the temperature of the liquid crystal panel 28.

  Further, in the first control unit 21 of the present embodiment, a display request signal for imaging the information based on the vehicle state information received by the main control unit 31 as a second control unit described later is the first. It is transmitted to the control unit 21 and outputs a display command signal to the drawing unit 22 in response to the display request signal.

  Here, the traveling information and abnormality information of the vehicle are received by the main control unit 31 as a signal (hereinafter referred to as an information signal) from a state value sensor (not shown). The main control unit 31 outputs a display command signal and a display request signal to the drive circuit 32 and the second control unit 21, respectively, according to the information signal.

  The state value sensor detects a vehicle speed, an engine speed, an engine coolant temperature, a fuel remaining amount, and the like, and transmits a signal representing the detection results to the main control unit 31. For example, the state value sensor includes a vehicle speed sensor, an engine speed sensor, an engine coolant temperature sensor, and a fuel remaining amount sensor (not shown) provided in an internal combustion engine or a vehicle, and a signal from the sensor is sent to a vehicle control device (engine control device). The state value of the vehicle input and determined based on the signal of each sensor in the vehicle control device is acquired via the vehicle control device. However, the present invention is not limited to this, and signals from the respective sensors may be input to the main control unit 31 and the main control unit 31 may determine the state value of the vehicle.

  The state value sensor includes an abnormality detection sensor such as a seat bell sensor or a door lock sensor for detecting an abnormality. For example, a seat bell sensor is attached to each seat belt for a driver and a passenger seat, detects each wearing state of a driver seat belt and a passenger seat belt, and outputs an abnormal signal indicating the detection result as a main signal. This is transmitted to the control unit 31.

  The state value sensor includes one that outputs a signal representing the state value of the input means that receives an input from the occupant. For example, the state value sensor of the input means is a turn signal switch for notifying other vehicles of a change request of the own vehicle in a predetermined traveling direction, a light switch for turning on / off a predetermined lamp of the vehicle, or the like.

  The second display device 3 includes a display board 34 that displays an index, movements 36 and 38 that drive hands 35 that rotate along the display board 34, and a main control unit 31 that drives the movements 36 and 38. The vehicle driver is instructed of the state value of the vehicle travel information. In the present embodiment, as the second display device 3, an indicator indicating the vehicle speed state value is a vehicle speedometer D indicated by the pointer 35, and an indicator indicating the rotation speed state value is a vehicle speedometer T indicated by the pointer 35. Is included.

  Further, in the second display device 3 of the present embodiment, the second light emitting diode 33 for emitting and displaying the indicator 37 that alerts the occupant including the driver of the occurrence of the state in the abnormality of the vehicle or the state to which attention should be paid. And. Specifically, the indicator 37 is provided, for example, in the center of the instrument panel 100 of the vehicle, and the indicator 37 as a warning symbol that is lit and displayed in an abnormal state is used for the driver and the passenger (passenger seat) other than the driver. It is arranged at a position that can be seen by both eyes.

  In the present embodiment, the indicator 37 includes a passenger seat belt indicator, and the passenger seat belt indicator indicates the passenger seat and the driver by displaying the indicator when the passenger seat is not properly tightening the seat belt. The user is encouraged to wear a seat belt in the passenger seat.

  Here, FIG. 3 is a view for explaining the operation of the first display device 2 for displaying the warning image 26 on the liquid crystal panel 28 and the second display device 3 for emitting and displaying the indicator 37 in the vehicle display device 1 of the present embodiment. A time chart is shown. As the warning image 26 and the indicator 37, a driver seat belt warning image and a passenger seat belt indicator are shown as examples of warning symbols, respectively. In FIG. 3, N indicates a multiple, and the subscript (1) of N indicates that the multiple is 1 in the embodiment.

  The main control unit 31 includes a known microcomputer having a control circuit and a memory, and is installed behind the first light emitting diode in the vehicle. The control circuit is electrically connected to the movement 36 of the vehicle speedometer S and the movement 37 of the tachometer T, and is electrically connected to the second light emitting diode 33 and the drive circuit 32 that drives the second light emitting diode 33 to blink. It is connected to the.

  For example, when the abnormality information of the passenger seat belt is received, the main control unit 31 outputs a display command signal for light emission display to the drive circuit 32 as a warning symbol. The main control unit 31 of the present embodiment outputs a display command signal for driving the second light-emitting diode 33 to blink at a constant cycle S to the drive circuit 32, and the indicator 37 driven to blink according to the display command signal indicates the warning symbol. The bright display and the dark display are repeated at a constant cycle S.

  Further, the main control unit 31 of the present embodiment has an adjustment function (hereinafter referred to as a bright display start time adjustment unit) that makes the start time of the bright display variable in a constant cycle S of the bright display and dark display of the warning symbol. . The bright display start time adjustment unit of the main control unit 31 is configured to store the bright display start time in the memory and to be able to rewrite the start time.

  Here, since the drawing unit 22 and the liquid crystal panel 28 driven by the first control unit 21 drive each component of the pixel region in each pixel region of the screen 28a, display for one screen displayed on the screen 28a. The amount of data is relatively large. When the apparatus 1 is activated (the ignition switch in FIG. 3 is ON), the main controller 31 and the first controller 21 perform the initialization process so that the indicator 37 on the main controller 31 side emits light. Compared to the preparation time (second preparation time) T2 when the preparation is completed, the first control unit 21, the drawing unit 22, and the liquid crystal panel 28 perform initial processing such as the above transfer processing of the meter image 25 and the warning image 26 in the image memory 24. Therefore, the waiting time (T1−T1) is set between the first preparation time T1 and the second preparation time T2 when the preparation for displaying the meter image 25 and the warning image 26 on the liquid crystal panel 28 is completed. T2) occurs.

  On the other hand, in the present embodiment, the bright display start timing adjustment unit of the main control unit 31 sets the bright display start timing in the fixed period S of the bright display and dark display of the warning symbol of the indicator 37 to the liquid crystal panel 28. It is wrapped at a time (hereinafter referred to as preparation completion time) Tf corresponding to the first preparation time T1 when preparation for displaying the warning image 26 and the like is completed.

  In the present embodiment, the first preparation time T1 is stored in the main control unit 31 in advance, and the main control unit 31 prepares the preparation completion time Tf based on the startup time Ta of the apparatus 1 and the first preparation time T1. (Tf = Ta + T1) is determined.

  As a result, at the preparation completion time Tf, that is, at the first display start time Tf at which the warning image 26 or the like is displayed on the liquid crystal panel 28 in the first display device 1, the bright display is performed in the fixed cycle S without changing the fixed cycle S. Can be synchronized with the initial display start time of the warning image 26.

  Further, in the present embodiment, the bright display start timing adjustment unit of the main control unit 31 sets the start timing of the first bright display of the warning symbol of the indicator 37 as a multiple N of the predetermined period S from the preparation completion timing Tf (this In the embodiment, the time Te is set by subtracting N = 1).

  The multiple N is detected when the driver 1 and the passenger's seat belt are abnormally attached by the seat belt sensor immediately after the start of the apparatus 1 (Ta) and during the preparation completion time Tf on the liquid crystal panel 28 side. When detected at times Tb and Tc, the multiple N established between the detected time Tc and the preparation completion time Tf is set as the maximum multiple.

  Thereby, when the abnormal state occurs, the first bright display of the warning symbol of the indicator 37 can be started with a slight delay from the occurrence of the abnormal state.

  Here, the first preparation time T1 is stored in the main control unit 31 in advance, and the main control unit 31 prepares the preparation completion time Te (Te) based on the startup time Ta of the apparatus 1 and the first preparation time T1. = Ta + T1) is determined.

  In addition, here, the warning image 26 and the indicator 37 indicating the abnormal wearing of the seat belts of both the driver seat and the passenger seat are arranged in the driver's viewing direction, and are arranged in the driver's and passenger seat's viewing directions, respectively. Therefore, when the abnormality occurs, the warning symbol displayed on the indicator 37 on the passenger seat side may be less visible than the warning symbol displayed on the warning image 26 for the driver. is there.

  On the other hand, in the present embodiment, when the abnormality occurs, the warning image 26 and the indicator 37 are synchronized and displayed at a constant period S. Therefore, the warning symbol of the indicator 37 is related to the warning symbol of the warning image 26. The driver is made aware of this. As a result, the driver can easily visually recognize the warning symbol of the warning image 26 and the indicator 37 when the abnormality occurs, as a warning symbol for abnormal mounting of the driver seat and the seat belt and a warning symbol for abnormal mounting of the passenger seat belt, respectively. be able to.

  Here, the occurrence of abnormalities in the seat belts in both the driver seat and the passenger seat corresponds to the specific time described in the claims. The warning symbol displayed on the indicator 37 corresponds to the display design described in the claims.

(Second Embodiment)
Hereinafter, other embodiments to which the present invention is applied will be described. In the following embodiments, the same or equivalent components as those in the first embodiment are denoted by the same reference numerals, and description thereof will not be repeated.

  A second embodiment is shown in FIG. In the second embodiment, in addition to the warning image 26 displayed on the first control unit 21 of the first display device 1 and the indicator 37 displayed on the main control unit 22 of the second display device 2, the main control unit 22. 3 shows an example in which a warning sound of a buzzer (not shown) driven by is repeated at a constant period S. In FIG. 4, illustration of the operation of the warning symbol of the indicator 37 is omitted.

  The main control unit 31 has an adjustment function (hereinafter referred to as a sounding start time adjusting unit) that makes the sounding start time of the buzzer warning sound and the sounding start time variable in a fixed period S of silence. The sounding start time adjusting unit of the main control unit 31 is configured to store the sounding start time in a memory and to rewrite the sounding start time.

  The sounding start time adjusting unit of the main control unit 31 wraps the sounding start time of the buzzer warning sound and the sounding start time in the silent period S to the preparation completion time Tf of the warning image 26 displayed on the liquid crystal panel 28. .

  The sound generation start time adjustment unit of the main control unit 31 subtracts the start time of the first sound generation of the buzzer warning sound by a multiple N of a fixed period S (N = 1 in this embodiment) from the preparation completion time Tf. Time Te is set.

  In the present embodiment, when an abnormality occurs, the warning sound of the warning image 26, the indicator 37, and the buzzer are synchronized and repeated at a constant period S. Therefore, the warning symbol of the indicator 37 is changed to the warning symbol of the warning image 26 and the warning sound of the buzzer. The driver is made aware that it is related to As a result, the driver can easily visually recognize the warning symbol of the warning image 26 and the indicator 37 when the abnormality occurs, as a warning symbol for abnormal mounting of the driver seat and the seat belt and a warning symbol for abnormal mounting of the passenger seat belt, respectively. In addition, the warning sound that synchronizes with the warning symbols can effectively notify the driver that an abnormality has occurred.

  At this time, the warning image 26, the indicator 37, and the warning sound of the buzzer are synchronized and periodically repeated, so that the abnormality occurs, that is, the abnormality in wearing the seat belts of both the driver seat and the passenger seat, It is possible to effectively alert the driver and the occupant.

  Here, the buzzer warning sound corresponds to the specific sound described in the claims.

(Other embodiments)
As mentioned above, although one Embodiment of this invention was described, this invention is limited to this embodiment and is not interpreted and can be applied to various embodiment in the range which does not deviate from the summary.

  (1) In the present embodiment described above, the second display device 3 having the main control unit 31 has been described as having the vehicle speed meter S, the tachometer T, and the indicator 37. If the information is received and the vehicle information is displayed on the liquid crystal panel 28 of the first display device 1 as an image, the vehicle speed image corresponding to the vehicle speed meter and the rotation speed corresponding to the tachometer in the first display device. An image may be displayed on a liquid crystal panel.

  (2) In the second embodiment described above, the case where the warning image 26, the indicator 37, and the warning sound of the buzzer are periodically repeated when an abnormality occurs has been described. However, the warning sound is a warning symbol of the warning image 26. In the case of a timbre or ringing sound that urges the driver or the like to be in an abnormal state related to the specific abnormal state indicated by FIG.

It is an external view which shows the driver's seat periphery of the state which provided the display apparatus by 1st Embodiment of this invention in the instrument panel. It is a block diagram which shows the electric circuit structure of the display apparatus by 1st Embodiment of this invention. It is a time chart for demonstrating the action | operation of the display apparatus by 1st Embodiment of this invention. It is a time chart for demonstrating the action | operation of the display apparatus by 2nd Embodiment of this invention.

Explanation of symbols

1 Vehicle display device (composite display device)
2 1st display apparatus 21 1st control part (1st control circuit, 1st control means)
22 Drawing unit (first control means)
23 Drawing Circuit 24 Image Memory 25 Meter Image (Information Image)
26 Warning image (specific image)
28 Liquid crystal panel 29 Backlight 3 Second display circuit 31 Second control section (second control circuit, second control means)
32 driving circuit 33 light emitting diode 35 movement 37 warning indicator D multi-display S vehicle speedometer T tachometer 100 instrument panel

Claims (5)

A liquid crystal panel for displaying various information as an information image in a vehicle, and a first display device having first control means for controlling the liquid crystal panel;
A second display device having a light source for transmitting and illuminating and displaying a display design related to a specific image among the information images, and a second control means for controlling the light source;
In a composite display device that periodically displays the specific image and the display design at a specific time,
The first control means includes
While storing the information image including the specific image as image data,
In the stored image data, display data for one screen to be displayed on the screen of the liquid crystal panel is transferred and stored in an image memory different from the storage destination of the image data, and
Drawing means for displaying the specific image on the liquid crystal panel based on the display data,
The second control means includes
Bright display start timing adjustment means for making bright display start timing variable while repeating bright display and dark display in the display design by blinking the light source at a constant period,
The display data for one screen to be displayed on the liquid crystal panel in the first control means is transferred from the storage destination to the image memory and stored, while the specific image is stored in the liquid crystal panel based on the display data. The preparation completion time to complete the preparation to display is preset,
The bright display start time adjusting means wraps the bright display start time of the design display at the preparation completion time.   The bright display start time adjustment means is a timing obtained by subtracting a multiple of the predetermined period from the preparation completion time, for the first bright display start time in the bright display and dark display of the design display repeated in the fixed period. The composite display device according to claim 1, wherein: The specific image and the design display indicate a caution symbol for calling attention to a driver and an occupant excluding the driver,
The specific image is arranged in the direction of the driver's line of sight,
The composite display device according to claim 1, wherein the display design is arranged in a line-of-sight direction of the driver and the occupant. A liquid crystal panel for displaying various information as an information image in a vehicle, and a display device having first control means for controlling the liquid crystal panel;
A second display device having a sounding body that generates a specific sound related to a specific image in the information image, and a second control unit that controls the sounding body;
In a composite apparatus that periodically shows the specific image and the specific sound to alert the occupant at a specific time,
The first control means includes
While storing the information image including the specific image as image data,
In the stored image data, display data for one screen to be displayed on the screen of the liquid crystal panel is transferred and stored in an image memory different from the storage destination of the image data, and
Drawing means for displaying the specific image on the liquid crystal panel based on the display data,
The second control means includes
A sounding start time adjusting means for repeating the sounding and silence in the specific sound by causing the sounding body to perform a sounding operation at a constant period, and making the sounding start time variable;
The display data for one screen to be displayed on the liquid crystal panel in the first control means is transferred from the storage destination to the image memory and stored, while the specific image is stored in the liquid crystal panel based on the display data. The preparation completion time to complete the preparation to display is preset,
The sound generation start time adjusting means wraps the sound generation start time of the specific sound at the preparation completion time.   The sound generation start time adjusting means is characterized in that the start time of the first sound generation in the sound generation and silence of the specific sound repeated in the fixed period is set to a time obtained by subtracting a multiple of the predetermined period from the preparation completion time. The composite display device according to claim 4.

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