JPH03287192A - display device - Google Patents

Abstract

PURPOSE:To necessarily transmit the content of a warning to an operator by providing a display mode in which maximum brightness display is performed without dimming concerning an important display matters. CONSTITUTION:A dimming mechanism executes dimming to perform display with specified optimum contrast ratio even when external light varies, and it receives an input from the photosensor part 12 of a detection member 1 and performs specified processing in a processing part 2, for example, the processing part 2 is provided with a brightness processing function having an A-D conversion part and a ROM part. Furthermore, a function for calling attention in the case of warning display is added to the processing part 2. Then, a warning signal in the case that the matters are important and it is necessary to surely inform the operator of the matters is previously set. When the warning signal is inputted from the detection part 1 and it is the important warning signal previously set, light is emitted with the maximum brightness without dimming to perform the display. Thus, the operator recognizes the content of the warning immediately.

Description

[Detailed description of the invention] (Industrial use needle!!?) The present invention displays various driving information on the instrument panel. This invention relates to a light control device used for.

(Prior Art) As a means of informing a driver of driving information such as vehicle speed, mileage, remaining fuel amount, etc., a display device that displays such information is installed in a vehicle or the like. Among these display devices,
Instrument panel display devices display driving information, and so-called head-up displays that display driving information on a portion of the vehicle's windshield so that it can be viewed overlapping the foreground within the field of view, are equipped with a display device that displays driving information based on the surrounding brightness. The display is equipped with a light control mechanism that adjusts the brightness of the display section so that the display itself does not become difficult to see due to the brightness of the sheath or background. The panel display device installed in the instrument panel part of the dimming mechanism does not require delicate adjustments, so it is generally done manually (by operating a variable resistor).
In a head-up display device, since the back shadow of the display section changes slightly and greatly during driving, automatic adjustment is performed (Japanese Patent Laid-Open No. 62-50237).

In addition, in the dimming and driving information display operations, input from various sensors installed in various parts of the vehicle is received, and this is transmitted to the CP.
A predetermined display is performed by central control processing such as U (
JP-A-63-26138).

(Problem to be solved by the invention) The above display device can display various characters on a single display.

There is a multi-display type that displays figures, etc., and a non-multi-display type that is formed of a single display member for every two characters and figures to be displayed, but both are independent of the matters to be displayed. Displayed at one rate brightness that has been dimmed. That is, both general driving information and warning displays informing of vehicle danger and the like are displayed at a uniform brightness level. Therefore, there is a possibility that the driver may not notice the warning display immediately. Therefore, the present invention proposes a display device with an improved dimming function so that the driver can immediately recognize the warning display.

(Means for Solving the Problems) A display device according to the present invention is a display device that displays a display form such as two display characters by emitting light and is equipped with a dimming mechanism that adjusts the brightness of the light emitting display. , is characterized by having a display mode in which important display items are displayed at maximum brightness without dimming.

(Function) Under normal conditions, a specified display is displayed at the optimum brightness after a specified dimming process.In particular, when displaying a warning that requires immediate notification to the driver, the dimming function is not activated and the display is set to the maximum brightness. The brightness is displayed.

(Example) Next, embodiments of the display device according to the present invention will be described.

The display device shown in the embodiment is basically a detection unit].

It consists of a processing section 22 and a display section 3, and a detection section 1 measures the vehicle speed.

Various sensors 11 and light sensor 12 for dimming are installed in various parts of the vehicle to obtain driving information such as mileage and remaining fuel level.
It outputs the sensor detection output to the processing section 2. The processing section 2 is composed of a CPU, etc., and changes the detection output of the detection section 1 into a signal that is easy to process, as well as information to be displayed, that is, characters to be displayed.

In addition to determining the figure, it receives input from the optical sensor 12 and controls the operation of the display section 3, such as determining the luminance to be displayed.The display section 3 consists of a drive section 31 and a display body 32. 31 is driven by the processing unit 2 so that predetermined items are displayed in a predetermined manner on a display body 32, and the display body 32 is, for example, a CRT or LED in a panel display device installed in an instrument panel. In a head-up display device, this corresponds to a display half mirror.

Various information necessary for driving is brightly displayed on the display 32, and the driver visually recognizes this to obtain desired information. In addition, the light control mechanism performs light control to maintain a predetermined optimal contrast even when external light fluctuates.In response to the input from the optical sensor section 12 of the detection section 1, the processing section 2 performs a predetermined process, for example, the processing section 2. A-D converter and ROM
The display brightness corresponding to the detection unit output (brightness of external light) is stored in advance as data in the ROM.
When the detection unit output based on the optical sensor is input to the brightness processing unit, a brightness instruction signal is issued to the display unit 3 based on the memorized data, and the display unit 3 is controlled based on the predetermined brightness instruction signal. The display brightness is determined. The present invention further adds an attention-calling function when displaying a warning to the processing unit 2 described above, and as shown in flowchart 1 in FIG. A certain warning signal is predetermined, and when a warning signal is input from the detection unit 1, it is determined whether or not it is the predetermined warning signal, and if it is a predetermined important warning signal, a dimming process is performed. This is achieved by emitting light at the maximum brightness without displaying the brightness.

While the vehicle is running, various driving information is dimmed and displayed at the optimum brightness, but important matters for the vehicle are displayed at maximum brightness without dimming. person can immediately recognize the content of the warning.

In addition, in the present invention, if the display device is a light-emitting type equipped with a dimming mechanism, the dimming means and display means can be arbitrarily determined. The specific dimming exclusion means is also arbitrary as long as the display is performed using luminance.

(Effects of the Invention) As described below, the present invention is a light-emitting type display device mounted on a vehicle, etc., and in particular, in a device equipped with a dimming mechanism, it is possible to perform dimming when displaying a warning. Even if the vehicle had a warning, this is canceled and the display is displayed at maximum brightness, ensuring that the warning content is always communicated to the driver, thereby achieving even safer driving.

[Brief explanation of drawings]

FIG. 1 is a simple block diagram of a display device according to an embodiment of the present invention, and FIG. 2 is a processing flowchart in a processing section when a warning signal is input. 1 is a detection section 11, various sensors 12, an optical sensor 2, a processing section 3, a display section 31, a drive section 32, a display body 7

Claims (1)

[Claims] (1) In a display device equipped with a dimming mechanism that displays characters, figures, etc. in a luminous manner and adjusts the brightness of the luminescent display, important display items are displayed at maximum brightness without dimming. A display device characterized by having a display mode.