JP5251021B2 - Display screen adjustment device - Google Patents

Description

  The present invention relates to a display screen adjustment device that adjusts the image quality of a display device mounted on a vehicle.

Conventionally, as a display screen adjustment device that adjusts the image quality of a display screen in a display device, a technique described in Patent Document 1 is known. In this system, multiple users adjust the image quality individually for each installation environment of the multiple displays (display devices) and display models, and the user ID and adjusted image quality settings are stored for each display. It is technology to keep.
JP 2005-229352 A

  By the way, when viewing the display device, even if the user has set the image quality adjustment in advance, the image quality may feel too bright or the hue may vary depending on the physical condition at that time and the surrounding environment (temperature and brightness). May feel unfit. In such a case, there is a problem that the set value of the image quality adjustment is not optimal. And it was troublesome to adjust the image quality one by one.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a display screen adjustment device that can automatically adjust the image quality suitable for the physical condition of the user and the surrounding environment around the display device.

According to the first aspect of the present invention, the biological sensor detects the biological information of the user's body temperature and blood pressure, the physical condition determination means determines the physical condition of the user based on the detection result of the biological sensor, and the surrounding environment sensor detects the vehicle. The ambient temperature information such as temperature and brightness is detected, and the control means sets the parameters of each image quality element for adjusting the image quality based on the physical condition determination result by the physical condition determination means, and the surroundings by the ambient environment sensor The parameters of each image quality factor that adjusts the image quality based on the environmental detection results are set individually, and the image quality of the display device is adjusted according to these parameters , so the display screen is adjusted to the image quality that matches the physical condition of the user and the surrounding environment. It can be adjusted automatically and the user can see the display screen comfortably.

  In this case, it is provided with sunglasses wearing determination means for determining whether or not the user wears sunglasses, and the control means includes the physical condition determination result, the ambient environment detection result, and the determination result by the sunglasses wearing determination means. The image quality of the display device may be adjusted according to (Invention of Claim 2).

  When the user is wearing sunglasses, the display screen may feel dark or certain colors may be difficult to see. In this regard, in the invention of claim 2, the control unit is configured to display the display device according to a physical condition determination result by the physical condition determination unit, an ambient environment detection result by the ambient environment sensor, and a determination result by the sunglasses wearing determination unit. Since the image quality of the image is adjusted, the image quality can be adjusted according to whether the sunglasses are worn or not, and convenience is increased.

In addition, the adjustment values for adjusting the image quality of the display device are ranked, and each adjustment value rank is parameterized, and one of the adjustment value ranks is set as a default adjustment value rank,
A correction value corresponding to the physical condition determination result and a correction value corresponding to the ambient environment detection result; and the control means includes a correction value corresponding to the physical condition determination result and a correction value corresponding to the ambient environment detection result. And calculating the final adjustment value rank parameter by adding the total value to the default adjustment value rank parameter. Based on the adjustment value rank corresponding to the final adjustment value rank parameter, the image quality of the display device The adjustment value may be determined (invention of claim 3).

  In this way, the correction value related to the physical condition and the correction value related to the surrounding environment are summed, and the final adjustment value rank parameter is calculated by adding this total value to the parameter of the default adjustment value rank. Therefore, it is possible to obtain an adjustment value rank that unifies and can easily determine an adjustment value for image quality.

  Further, the adjustment values for adjusting the image quality of the display device are ranked, and each adjustment value rank is parameterized, and one of the adjustment value ranks is set as a default adjustment value rank, corresponding to the physical condition determination result A correction value corresponding to the ambient environment detection result, a correction value corresponding to the sunglasses wearing determination result, and the control means includes a correction value corresponding to the physical condition determination result and the ambient environment. The corresponding correction value and the correction value corresponding to the sunglasses wearing determination result are summed up, and the final adjustment value rank parameter is calculated by adding the total value to the default adjustment value rank parameter. An image quality adjustment value of the display device may be determined based on an adjustment value rank corresponding to a rank parameter (invention of claim 4).

  In this way, the correction value related to the physical condition, the correction value related to the surrounding environment, and the correction value related to wearing the sunglasses are summed, and this total value is added to the parameter of the default adjustment value rank to calculate the parameter of the final adjustment value rank. Therefore, it is possible to acquire an adjustment value rank that unifies the physical condition, the surrounding environment, and whether or not sunglasses are worn, and it is easy to determine the adjustment value of the image quality.

  In addition, when the biological information cannot be detected from the biological sensor, the notification means is informed of the guidance for detecting the biological information of the biological sensor, and the detection operation by the biological sensor is executed again. When the number of executions reaches a predetermined number, the occurrence of a failure of the biosensor may be notified to the notification unit, and the correction value corresponding to the physical condition determination result may be set to a default value. 5 invention).

  The biometric sensor is provided at an appropriate location in the vehicle (a location that the user touches naturally (such as a handle or a key) or an appropriate touchable location (such as an instrument panel)), but the user does not properly touch the biometric sensor. Sometimes. In this case, biological information cannot be detected from the biological sensor. In such a case, according to the fifth aspect of the present invention, since the notifying means is notified of the biometric information detection guidance of the biometric sensor, the user is prompted to touch the biometric sensor. The user touches the biosensor by this notification. Thereafter, since the detection operation by the biological sensor is executed again, the biological information can be reliably detected from the biological sensor.

  And when the said biosensor is out of order, since the frequency | count of execution of the detection operation | movement of the said biosensor reaches predetermined number, the failure of the said biosensor can be notified by an alerting | reporting means. Even if the biological information cannot be detected from the biological sensor, the correction value corresponding to the physical condition determination result is set to the default value, so that the adjustment value can be determined without any trouble.

  In addition, when the ambient environment information cannot be detected from the ambient environment sensor, the notification unit is informed of the guidance for detecting the ambient environment information of the ambient environment sensor, and the detection operation by the ambient environment sensor is performed. When the number of executions reaches a predetermined number, the notification unit notifies the failure of the surrounding environment sensor, and the correction value corresponding to the surrounding environment may be set to a default value ( Invention of Claim 6).

  Ambient environment sensors are provided at appropriate places in the vehicle (such as around the display device). However, if the user carelessly places an article on the ambient environment sensor, the surrounding environment information may not be properly detected. . In such a case, according to the invention of claim 6, since the notification means is notified of the ambient environment information detection of the ambient environment sensor, the user can remove the article of the ambient environment sensor portion. Prompted. By this notification, the user removes the article from the surrounding environment sensor portion. Thereafter, since the detection operation by the ambient environment sensor is executed again, the ambient environment information can be reliably detected from the ambient environment sensor.

  And when the surrounding environment sensor is out of order, the number of executions of the detection operation of the surrounding environment sensor reaches a predetermined number of times, so that the failure of the surrounding environment sensor can be notified by the notification means. Even if the ambient environment information cannot be detected from the ambient environment sensor, the correction value corresponding to the ambient environment is set to the default value, so that the adjustment value can be determined without any trouble.

  In addition, a notification unit may be provided, and when the physical condition determination unit determines that the user's physical condition is poor, the notification unit may be notified of a guide prompting to stop driving the vehicle (invention of claim 7). . If it does in this way, it will become possible to stop driving in the state where physical condition is bad.

  The first embodiment of the present invention will be described below with reference to FIGS. The display 1 which is a display device is composed of, for example, a liquid crystal display device. The display 1 is disposed at a position such as an instrument panel of a vehicle (not shown), that is, a position that is easy for the user (driver) to see. The display 1 displays various input image sources. Examples of the input image source include a navigation image of a navigation device, a DVD image, a TV image, an in-vehicle camera image, and an external input image by a user.

A display screen adjustment device 2 for adjusting the image quality of the display 1 is mounted on a vehicle, and includes a control device 3, an audio output device 4, an input unit 5, a luminance sensor 6, a temperature sensor 7, A biosensor 8 and an image quality adjustment unit 9 are provided.
The control device 3 includes a CPU 10, a ROM 11, a RAM 12, a nonvolatile memory 13, and the like, and serves as a physical condition determination unit and a control unit. The ROM 11 stores a program for adjusting image quality and fixed data. The RAM 12 temporarily stores input information and data. The nonvolatile memory 13 is for storing specific data that must not be erased even when the power is turned off. For example, the default value of the image quality designated by the user is stored.

The audio output device 4 includes, for example, a speaker, and may use a speaker such as audio, or may be provided exclusively, and corresponds to a notification unit.
The input unit 5 inputs data related to image quality adjustment, for example. For example, a touch switch made of a transparent electrode formed on the display 1, a touch switch provided on the instrument panel, a push button switch, or the like It is composed of

The brightness sensor 6 is provided around the display 1 and detects the brightness around the display 1 and corresponds to a surrounding environment sensor.
The temperature sensor 7 is provided in an appropriate part (for example, an instrument panel) in the vehicle, detects air temperature, and corresponds to a surrounding environment sensor.

The biosensor 8 is provided, for example, at a site where a finger touches the steering handle, and detects body temperature, blood pressure, and pulse.
The image quality adjustment unit 9 adjusts the image quality of the display 1 (the image quality elements include contrast, hue, color density, sharpness, black level, brightness, etc.). The image quality is adjusted according to the image quality adjustment value given from the control device 3.

  Next, control of the control device 3 (control performed by the CPU 10) will be described with reference to FIG. This control is started, for example, when the user operates the engine starter. In step S1, it is determined whether the image source is a navigation image of the navigation device, a DVD image, a TV image, an in-vehicle camera image, or an external input image by the user, and the default adjustment value rank of the image source is read. . The default adjustment value rank is set in advance by the user. The default adjustment value rank may be determined in advance for each image source by the control device 3 in advance.

  Here, the adjustment value rank of each image source is divided into 20 ranks as shown in FIG. For example, the image quality element “contrast” is appropriately divided into 15 to 80 degrees (adjustment value) in 20 ranks, and the image quality element “tone” is appropriately divided into 3 to 99 degrees (adjustment value) in 20 ranks. “Density” is appropriately divided into 20 ranks for 2-90 degrees (adjustment value), image quality element “sharpness” is appropriately divided into 20 ranks for 5 to 80 degrees (adjustment value), and image quality element “black level” is 1 ˜75 degrees (adjustment value) is appropriately divided into 20 ranks, and the image quality element “brightness” is appropriately divided into 1 to 100 degrees (adjustment value) into 20 ranks. Each adjustment value rank is set with parameters “1” to “20” (parameterized). One of these adjustment value ranks “1” to “20” is set as the default adjustment value rank. The default adjustment value rank preset by the user is shown in columns [1] [2] [3] [4] [5] in FIG.

  That is, in the case of the navigation image [1], the default adjustment value ranks of user settings for “contrast”, “hue”, “color density”, “sharpness”, “black level”, and “brightness” are all adjusted. In the DVD image of [2], the default adjustment value rank of “Contrast” is the adjustment value rank “11”, and the default adjustment value rank of “Tint” is the adjustment value rank “9”. The default adjustment value rank of “color density” is the adjustment value rank “10”, the default adjustment value rank of “sharpness” is the adjustment value rank “11”, and the default adjustment value rank of “black level” is the adjustment value rank “8”. The default adjustment value rank of “brightness” is the adjustment value rank “11”. Hereinafter, the default adjustment value ranks of the image quality elements of the TV image [3], the camera image [4], and the external input image [5] are as illustrated.

In addition, correction values corresponding to physical condition determination results, ambient temperature detection results, and ambient brightness detection results for each image quality element are illustrated in FIG.
For example, with regard to the image quality element “contrast”, the correction value “0” (no correction) for the physical condition determination result “good”, the correction value “+2” for the physical condition determination result “bad”, and the correction value “+” for the ambient temperature detection result “moderate”. “0”, correction value “0” for ambient temperature detection result “high”, correction value “0” for ambient temperature detection result “low”, correction value “0” for ambient brightness detection result “moderate”, ambient brightness detection The result “bright” is the correction value “+1”, and the ambient brightness detection result “dark” is the correction value “−1”.

In step S1, the image source is, for example, a navigation image.
In step S2, detection by the biosensor 8 and correction value acquisition control are performed. The contents of this control are shown as a subroutine in FIG. In FIG. 3, in step T1, biological information such as blood pressure, body temperature, and pulse is detected by the biological sensor 8 (physical condition is detected). In step T2, whether or not good detection has been performed (biological information can be detected). Whether or not). If good detection is possible ("YES"), the process proceeds to step T3, and the physical condition is determined from the detection result. In this case, determination is made in three stages: physical condition “good”, “bad”, or “defect that hinders driving”.

  After step T3, the process proceeds to step T4, where it is determined whether or not the physical condition determination result in step T3 is “a defect that affects driving”. ”, The process proceeds to step T6 to notify the audio output device 4 to stop the operation, stop the engine, and terminate this control.

  If it is determined that the physical condition determination result in step T4 is not “defect that affects driving”, the correction value is determined from the determination data in FIG. 6A according to the physical condition determination result “good” or “bad”. Is read. In this case, if the physical condition is “poor”, “+2” is read as the correction value for “contrast”, “+1” is read as the correction value for “tone”, and “−2” is set as the correction value for “color density”. Read, “−2” is read as the correction value for “sharpness”, “+1” is read as the correction value for “black level”, and “−1” is read as the correction value for “brightness”. If the physical condition is “good”, the correction values of “contrast”, “hue”, “sharpness”, “black level”, and “brightness” are all “0” (no correction).

  If it is determined in step T2 that good detection has not been performed, that is, if it is determined that the user has not touched the biological sensor 8, the process proceeds to step T7, and re-detection is executed twice. If it is less than twice (“NO”), the process proceeds to step T8 to notify the audio output device 4 to touch the biosensor 8, and the process returns to step T1. In this step T1, the physical condition detection operation is executed again. Usually, the user is prompted by the notification and touches the biometric sensor 8, and the biometric information can be detected well by this redetection operation. Thus, the process proceeds from "YES" in step T2 to step T3.

  If it is determined in step T7 that the re-detection operation has been performed twice, the process proceeds to step T9 to notify the audio output device 4 that the biosensor 8 is out of order. As a correction value, a default value (in this case, a correction value of “good” physical condition (both “0”) is set as a default value) is read. Thereafter, returning to the main routine of FIG. 2, the ambient temperature detection and correction value acquisition control in step S3 is performed.

  The control contents of the ambient temperature detection and correction value acquisition control in step S3 are shown in FIG. 4 as a subroutine. In FIG. 4, in step U1, the ambient temperature is detected by the temperature sensor 7, and in step U2, it is determined whether or not a good detection has been made (whether or not the ambient temperature has been detected). If good detection is possible ("YES"), the process proceeds to step U3, and it is determined from the detection result whether the ambient temperature is "moderate", "low", or "high".

  Thereafter, the process proceeds to step U4, and the correction value is read from the determination data in FIG. 6A according to the ambient temperature determination results “moderate”, “low”, and “high”. In this case, if the ambient temperature is “low”, the “contrast” correction value reads “0”, the “hue” correction value reads “+3”, and the “color density” correction value reads “0”. Read, “−1” is read as the correction value for “sharpness”, “+1” is read as the correction value for “black level”, and “0” is read as the correction value for “brightness”. If the ambient temperature determination result is “high”, “0” is read for the “contrast” correction value, “−3” is read for the “tone” correction value, and the “color density” correction value is “3”. “0” is read, “+1” is read as the correction value for “sharpness”, “−1” is read as the correction value for “black level”, and “0” is read as the correction value for “brightness”. When the determination result of the ambient temperature is “moderate”, the correction values for “contrast”, “hue”, “color density”, “sharpness”, “black level”, and “brightness” are all “0”. (No correction).

  Here, if it is determined in step U2 that good detection is not possible, that is, if it is determined that the user cannot detect the ambient temperature because there is an article that causes a temperature detection failure in the temperature sensor 7 portion, The process proceeds to step U5, where it is determined whether or not the re-detection has been executed twice. If it is still less than twice ("NO"), the process proceeds to step U6 and becomes an obstacle to the temperature sensor 7 part. The sound output device 4 is notified so as to eliminate the factor (article of the temperature sensor 7 portion), and the process returns to Step U1. In this step U1, the ambient temperature detection operation is executed again. Usually, however, the user is prompted by the notification to eliminate the temperature detection obstacle, and the re-detection operation determines the ambient temperature. Thus, the detection can be performed satisfactorily, and the process moves from “YES” in Step U2 to Step U3.

  If it is determined in step U5 that the re-detection operation has been performed twice, the process proceeds to step U7 to notify the audio output device 4 that the temperature sensor 7 has failed. As a temperature correction value, a default value (in this case, a correction value of ambient temperature “moderate” (both “0”) is set as a default value) is read. Thereafter, returning to the main routine of FIG. 2, ambient brightness detection and correction value acquisition control in step S4 are performed.

  The control contents of ambient brightness detection and correction value acquisition control in step S4 are shown in FIG. 5 as a subroutine. In FIG. 4, in step V1, ambient brightness is detected by the luminance sensor 6, and in step V2, it is determined whether or not good detection has been achieved (whether ambient brightness has been detected). If good detection is possible ("YES"), the process proceeds to step V3, and it is determined from the detection result whether the ambient brightness is "moderate", "dark", or "bright".

  Thereafter, the process proceeds to step V4, and the correction value is read from the determination data in FIG. 6A according to the ambient brightness determination results “moderate”, “dark”, and “bright”. In this case, if the ambient brightness is “dark”, “−1” is read as the correction value for “contrast”, “0” is read as the correction value for “color”, and the correction value for “color density” is “−”. “1” is read, “0” is read as the correction value for “sharpness”, “+2” is read as the correction value for “black level”, and “−2” is read as the correction value for “brightness”. If the ambient brightness determination result is “bright”, “+1” is read as the correction value for “contrast”, “0” is read as the correction value for “tone”, and the correction value for “color density” is “ “+1” is read, “0” is read as the correction value for “sharpness”, “−2” is read as the correction value for “black level”, and “+2” is read as the correction value for “brightness”. When the ambient brightness judgment result is “moderate”, the correction values for “contrast”, “hue”, “color density”, “sharpness”, “black level”, and “brightness” are all “ 0 "(no correction).

  If it is determined in step V2 that good detection is not possible, that is, it is determined that the user cannot detect the ambient brightness because there is an article that causes a brightness detection failure in the luminance sensor 6 portion. Then, the process proceeds to step V5 to determine whether or not the re-detection is executed twice. If it is still less than twice ("NO"), the process proceeds to step V6 and the failure of the luminance sensor 6 portion is determined. The audio output device 4 is notified so as to eliminate the factor (the article in the luminance sensor 6 portion), and the process returns to step V1. In this step V1, the ambient brightness intelligence operation is executed again. Normally, however, the user is prompted by the notification to eliminate the ambient brightness detection obstacle, and this re-detection operation The ambient brightness can be detected satisfactorily, and the process moves from “YES” in Step V2 to Step V3.

  If it is determined in step V5 that the re-detection operation has been performed twice, the process proceeds to step V7 to notify the audio output device 4 that the luminance sensor 6 has failed. As a temperature correction value, a default value (in this case, a correction value for ambient brightness “moderate” (both “0”) is set as a default value) is read. Thereafter, the process returns to the main routine of FIG. 2 and proceeds to step S5.

  In step S5, for each image quality factor, the correction value (step T5) or default value (step T10) acquired from the physical condition determination result, and the correction value (step U4) or default value (step U8) acquired from the ambient temperature determination result. ) And the correction value (step V4) or default value (step V8) acquired from the ambient brightness determination result, and in the next step S6, the total value for each image quality element is shown in FIG. It is added to the parameter of the default adjustment value rank for each image quality element. The final adjustment value rank parameter for each image quality element is determined by the addition for each image quality element. In the next step S7, the adjustment frequency (adjustment value) of each image quality element is acquired from the adjustment value rank corresponding to the final adjustment value rank parameter for each image quality element. Thereafter, in step S8, the adjustment value is output to the image quality adjustment unit 9, and the image quality adjustment unit 9 adjusts the image quality of the display 1 according to the adjustment value.

  Here, as shown by the thick line frame in FIG. 6, the physical condition determination result in this embodiment is “bad”, the ambient temperature determination result (ambient temperature detection result) is “low”, and the ambient brightness determination When the result (ambient brightness detection result) is “dark”, as shown in the column a4 in FIG. 6A, the total correction value of the image quality element “contrast” is “+1”, and “tone” correction. The sum of the values is “+4”, the sum of the correction values of “Color Saturation” is “−3”, the sum of the correction values of “Sharpness” is “−3”, and the sum of the correction values of “Black Level” The value is “+4”, and the total correction value of “brightness” is “−3”.

  The parameters of the default adjustment value rank are the rank parameters (“contrast”, “hue”, “color density”, “sharpness”, “black level”, “brightness”) corresponding to the navigation image. Since the rank parameter is “10” as shown in the column b1 of (b), the final adjustment value rank parameter of each image quality element is as follows.

The final adjustment value rank parameter of “contrast” is “10” + “+ 1” = “11” (see the column b2 in FIG. 6B). In a similar way,
The final adjustment value rank parameter of “color” is “10” + “+ 4” = “14”,
The final adjustment value rank parameter of “color density” is “10” + “− 3” = “7”,
The final adjustment value rank parameter of “sharpness” is “10” + “− 3” = “7”,
The final adjustment value rank parameter of “black level” is “10” + “+ 4” = “14”,
The final adjustment value rank parameter of “brightness” is “10” + “− 3” = “7”.

From the final adjustment value rank parameter of each image quality element, the adjustment value of each image quality element is acquired based on the data of FIG.
As the adjustment value of “contrast”, since the final adjustment value rank is “11”, the adjustment value in the column c1 is acquired,
Since the final adjustment value rank is “14” as the adjustment value of “hue”, the adjustment value in the column c2 is acquired,
As the adjustment value of “color density”, since the final adjustment value rank is “7”, the adjustment value in the column c3 is acquired,
As the adjustment value of “sharpness”, since the final adjustment value rank is “7”, the adjustment value in the column c4 is acquired,
As the adjustment value of “black level”, since the final adjustment value rank is “14”, the adjustment value in the column c5 is acquired,
Since the final adjustment value rank is “7” as the “brightness” adjustment value, the adjustment value in the column c6 is acquired.

  According to such a present Example, biological information, such as a user's body temperature and blood pressure, is detected with the biosensor 8, and the said user based on the detection result by this biosensor 8 with the control apparatus 3 which functions as a physical condition determination means. And the ambient temperature information such as brightness and temperature in the vehicle is detected by the luminance sensor 6 and the temperature sensor 7 as the ambient environment sensor, and the physical condition determination result is obtained by the control device 3 that also functions as a control means. Since the image quality of the display 1 is adjusted according to the ambient environment detection result (brightness and temperature detection result), the display screen of the display 1 can be automatically adjusted to the image quality suitable for the user's physical condition and the surrounding environment, The user can comfortably view the display screen.

  Further, according to the present embodiment, the adjustment values of the image quality elements of the display 1 are ranked, the adjustment value ranks are parameterized, and one of the adjustment value ranks is set as a default adjustment value rank, A correction value corresponding to the physical condition determination result and a correction value corresponding to the ambient environment detection result, and the control device 3 includes a correction value corresponding to the physical condition determination result and a correction value corresponding to the ambient environment; Are added to the default adjustment value rank parameter to calculate a final adjustment value rank parameter, and the image quality of the display device is calculated based on the adjustment value rank corresponding to the final adjustment value rank parameter. The adjustment value was determined.

  According to this, since the correction value related to the physical condition and the correction value related to the surrounding environment are summed, and this total value is added to the parameter of the default adjustment value rank, the adjustment value rank that unifies the physical condition and the surrounding environment can be acquired. Therefore, it is easy to determine the adjustment value of the image quality.

  In this case, the voice output device 4 is provided as a notification unit, and when the biological information cannot be detected from the biological sensor 8, the voice output device 4 is notified of guidance for detecting the biological information of the biological sensor 8, and When the detection operation by the sensor 8 is performed again and the number of execution times reaches a predetermined number of times, for example, twice, the sound output device 4 is notified of the occurrence of the failure of the biosensor 8, and the physical condition determination result is handled. Since the correction value is set to a default value, the following effects can be obtained.

  In other words, the biosensor 8 is provided at an appropriate place in the vehicle (a place that the user touches naturally (such as a handle or a key) or an appropriate touchable place (such as an instrument panel)). You may not have touched. In this case, biological information cannot be detected from the biological sensor 8. In such a case, according to this embodiment, since the voice output device 4 is notified of guidance for detecting biological information of the biological sensor 8, the user is prompted to touch the biological sensor 8. The user touches the biosensor 8 by this notification. Thereafter, since the detection operation by the biosensor 8 is performed again, the biometric information can be reliably detected from the biosensor 8.

And when the biosensor 8 is out of order, the number of executions of the detection operation of the biosensor 8 reaches the predetermined number, so that the audio output device 4 can notify the failure of the biosensor 8. Even if the biological information cannot be detected from the biological sensor 8, the correction value corresponding to the physical condition determination result is set to the default value, so that the image quality adjustment value can be determined without any trouble.
In addition, according to the present embodiment, when it is determined that the user's physical condition is poor, the voice output device 4 is notified of the guidance for urging the vehicle to stop driving. Can be canceled.

  Further, according to the present embodiment, when ambient environment information (ambient brightness information and ambient temperature information) cannot be detected from the ambient environment sensor luminance sensor 6 and temperature sensor 7, these ambient environment sensors (luminance sensor 6 and temperature sensor) are detected. The sensor 7) informs the voice output device 4 of guidance for detecting ambient environment information, and again executes the detection operation by the ambient environment sensor (luminance sensor 6 and temperature sensor 7). When it reaches twice, the sound output device 4 is notified of the failure of the surrounding environment sensor (luminance sensor 6 and temperature sensor 7), and the correction value corresponding to the surrounding environment is set to the default value. The user inadvertently places an article on the surrounding environment sensor (luminance sensor 6 or temperature sensor 7), or the article is in close proximity to the surrounding environment sensor. If it is located, the surrounding environment sensor (luminance sensor 6 or temperature sensor 7) can provide guidance for detecting the surrounding environment information (guidance for removing the article), and the user can place the article in the surrounding environment sensor portion. Prompted to get rid of. By this notification, the user removes the article from the surrounding environment sensor portion. Thereafter, since the detection operation by the ambient environment sensor is executed again, the ambient environment information can be reliably detected from the ambient environment sensor.

  When the ambient environment sensor (luminance sensor 6 or temperature sensor 7) is out of order, the number of executions of the detection operation of the ambient environment sensor reaches the predetermined number. A failure of the ambient environment sensor can be notified. Even if the ambient environment information cannot be obtained from the ambient environment sensor, the correction value corresponding to the ambient environment is set to the default value, so that the image quality adjustment value can be determined without any trouble.

  Next, FIGS. 7 and 8 show a second embodiment of the present invention. This embodiment is different from the first embodiment in the following points. In the second embodiment, a camera 21 is provided, and the control device 3 determines whether or not the user is wearing sunglasses based on an image signal from the camera 21. The camera 21 and the control device 3 constitute sunglasses wearing determination means 22. The control device 3 adjusts the image quality of the display 1 according to the physical condition determination result, the ambient environment detection result, and the determination result by the sunglasses wearing determination means 22.

This will be described in detail. The camera 21 is disposed at an in-car position where the user's face can be imaged, and the control device 3 determines whether or not sunglasses are worn based on the image signal from the camera 21.
Further, the control device 3 corrects the correction value corresponding to the physical condition determination result, the correction value corresponding to the ambient environment (ambient temperature and ambient brightness), and the correction value corresponding to the sunglasses wearing determination result (in FIG. 8). Column a5) and adding the total value to the parameter of the default adjustment value rank to calculate the parameter of the final adjustment value rank, and based on the adjustment value rank corresponding to the final adjustment value rank parameter, The adjustment value of the image quality of the display device is determined.

  When the user uses sunglasses, the display screen of the display 1 may feel dark or a specific color may be difficult to see. In this respect, in the second embodiment, the control device 3 adjusts the image quality of the display 1 according to the physical condition determination result, the ambient environment detection result, and the sunglasses wearing determination result. This makes it possible to adjust the image quality according to the presence or absence of the image, increasing convenience.

  In addition, according to the second embodiment, the correction value related to the physical condition, the correction value related to the surrounding environment, and the correction value related to the wearing of the sunglasses are summed, and this total value is added to the parameter of the default adjustment value rank to obtain the final value. Since the parameter of the adjustment value rank is calculated, it is possible to acquire the adjustment value rank that unifies the physical condition, the surrounding environment, and the presence / absence of wearing sunglasses, and it is easy to determine the adjustment value of the image quality.

  The present invention is not limited to the above-described embodiments, and may be modified as follows. The biometric sensor may be provided on the ignition key. The start trigger for the control shown in FIG. 3 may be triggered by door lock release or seat seating detection instead of a starter operation signal. In addition, as a biosensor, a plurality of biosensors are provided on a handle, an instrument panel, and the like. Usually, a biosensor with a handle that is easy for the user to touch is used. You may make it alert | report so that a biosensor may be touched. Further, the notification means is not limited to the audio output device 4, and the display 1 may be used as the notification means.

1 is a block diagram of a functional configuration showing a first embodiment of the present invention. Flow chart showing control contents (part 1) Flow chart showing control contents (2) Flow chart showing control contents (part 3) Flow chart showing control contents (Part 4) (A) shows correction value data, (b) shows an example of default adjustment value rank, and (c) shows adjustment value rank data. FIG. 1 equivalent view showing a second embodiment of the present invention. 6 equivalent diagram

Explanation of symbols

  In the drawings, 1 is a display (display device), 2 is a display screen adjustment device, 3 is a control device (physical condition judging means, control means), 4 is an audio output device (notification means), and 6 is a luminance sensor (ambient environment sensor). , 7 is a temperature sensor (ambient environment sensor), 8 is a biological sensor, 21 is a camera, and 22 is sunglasses wearing determination means.

Claims (8)

A display screen adjustment device that adjusts the image quality of a display device mounted on a vehicle based on parameters of each image quality element ,
A biological sensor for detecting biological information such as a user's body temperature and blood pressure;
Physical condition determination means for determining the physical condition of the user based on the detection result of the biological sensor;
An ambient environment sensor for detecting ambient environment information such as temperature and brightness in the vehicle;
Parameters for each image quality element for adjusting the image quality based on the physical condition determination result by the physical condition determination means are set, and parameters for each image quality element for adjusting the image quality based on the surrounding environment detection result by the ambient environment sensor are respectively set. And a display screen adjusting apparatus comprising: a control unit that adjusts the image quality of the display device in accordance with these parameters . Sunglasses wearing determination means for determining whether the user is wearing sunglasses,
2. The display screen adjustment according to claim 1, wherein the control unit adjusts an image quality of the display device in accordance with the physical condition determination result, the ambient environment detection result, and a determination result by the sunglasses wearing determination unit. apparatus. Rank adjustment values for adjusting the image quality of the display device, parameterize each adjustment value rank, set one of the adjustment value ranks as a default adjustment value rank,
Having a correction value corresponding to the physical condition determination result and a correction value corresponding to the ambient environment detection result,
The control means sums the correction value corresponding to the physical condition determination result and the correction value corresponding to the ambient environment detection result, and adds the total value to the parameter of the default adjustment value rank to obtain a final adjustment value rank The display screen adjustment device according to claim 1, wherein an image quality adjustment value of the display device is determined based on an adjustment value rank corresponding to the final adjustment value rank parameter. Rank adjustment values to adjust the image quality of the display device, parameterize each adjustment value rank, set one of the adjustment value ranks as a default adjustment value rank,
A correction value corresponding to the physical condition determination result, a correction value corresponding to the ambient environment detection result, and a correction value corresponding to the sunglasses wearing determination result,
The control means sums a correction value corresponding to the physical condition determination result, a correction value corresponding to the surrounding environment, and a correction value corresponding to the sunglasses wearing determination result, and the total value is calculated as the default adjustment value rank. 3. The final adjustment value rank parameter is calculated by adding to the first adjustment parameter, and the image quality adjustment value of the display device is determined based on the adjustment value rank corresponding to the final adjustment value rank parameter. The display screen adjustment device described in 1. Providing a notification means,
When the biological information cannot be detected from the biological sensor, the notification means notifies the guidance for detecting the biological information of the biological sensor, and the detection operation by the biological sensor is executed again, and the number of executions reaches a predetermined number. The display screen according to claim 3 or 4, wherein when the failure occurs in the biosensor, the notification means is notified, and the correction value corresponding to the physical condition determination result is set to a default value. Adjustment device. Providing a notification means,
When the ambient environment information cannot be detected from the ambient environment sensor, the notification means notifies the ambient environment information of the ambient environment sensor, and the detection operation by the ambient environment sensor is performed again. 6. When a predetermined number of times is reached, the notification means is notified of a failure of the ambient environment sensor, and a correction value corresponding to the ambient environment detection result is set to a default value. The display screen adjustment device according to any one of the above. Providing a notification means,
7. The information according to claim 1, wherein when the physical condition determination unit determines that the user's physical condition is poor, the notification unit is notified of a guide prompting to stop driving the vehicle. Display screen adjustment device.   The display screen adjusting apparatus according to claim 1, wherein the biological sensor is provided on a portion of the steering handle that is touched by a user's finger.

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