JP2021073126A - Information display system - Google Patents

Abstract

To provide an information display system provided with a display screen that allows a user to view indirectly or directly on a single display screen.SOLUTION: A display 13 of a radar detector 10 is laid down so that a display screen 14 is reflected by, for example, a front window, to be viewed indirectly in a dark environment such as at night. and meanwhile, in a bright daytime situation, the display 13 is raised so that the display screen 14 can be viewed directly. This enables, with only one display screen, the display screen to be indirectly viewed or directly viewed according to a user's situation.SELECTED DRAWING: Figure 1

Description

The present invention relates to an information display system.

Conventionally, as an information display system, for example, a navigation device mounted on a vehicle such as a car or a bicycle or a microwave detector (radar detector) mounted on a car acquires driving information and displays the content on a display screen. Examples thereof include electronic devices that are designed to be displayed, and electronic devices such as audio devices for vehicles that are designed to display visual information contents such as terrestrial digital TVs, CDs, and DVDs on a display screen.
Patent Documents 1 and 2 are given as examples of conventional electronic devices such as these. The electronic devices disclosed in Patent Document 1 are head-up displays (HUDs) arranged on a dashboard in an automobile. As shown in FIGS. 1 to 5 of Patent Document 1, this HUD is provided with a combiner 3 made of transparent resin, and an image light containing information is projected onto the combiner 3 indirectly from a display 2 arranged in the case 1. It is a configuration that allows the user to visually check.
However, in the HUD as in Patent Document 1, since the user indirectly sees the display 2 through the combiner 3, the combiner 3 can be used in a relatively dark state of rain or cloudy weather even at night or in the daytime. Although the projected image light can be sufficiently visually recognized, the displayed image content may be difficult to see because the image light projected on the combiner 3 may not be sufficient with respect to the outside light in the daytime when the ambient light amount is large and the weather is good. There is a possibility that it will end up.

Japanese Unexamined Patent Publication No. 2006-62501 Japanese Patent No. 48067333

On the other hand, Patent Document 2 discloses, for example, as shown in FIG. 6, a display 601 provided with a display screen 602 arranged on a dashboard in an automobile. If the information display system is provided with a display unit that the user can directly see, such as Patent Document 2, the display unit can be directly viewed, so that the HUD of Patent Document 1 can be used even in the daytime when the weather is fine. It's not hard to see.
However, electronic devices such as Patent Document 2 that directly visually check the display unit are generally easier to see in the daytime when the weather is fine than in the HUD, but are rather too bright in the dark conditions such as nighttime and rainy weather as described above. You will feel dazzling.
Therefore, electronic devices having both a display screen for indirectly visually observing the display screen as in Patent Document 1 and a display screen for directly visually observing the display screen as in Patent Document 2 are installed depending on the situation. It is conceivable to configure one of the display screens so that the user can see it, but if both screens are provided, the whole becomes large, which may obstruct the user's view depending on the installation location. .. In addition, providing different display screens has problems such as cost increase in the future.
The present invention has been made to solve the above problems, and an object of the present invention is to display information including a display screen that can be indirectly or directly viewed by a user on one display screen. To provide the system.

In order to achieve the above object, as means 1, the first display mode in which the display screen is reflected by a reflector to allow the user to indirectly see the display content, and the display content of the display screen is directly viewed by the user. It may have a second display mode.
With such a configuration, the user can recognize the information displayed on the display screen in an easy-to-see display mode according to the surrounding brightness situation.
When the surroundings are dark, the human eye opens its pupils to take in more light so that it can see things even when the amount of light is small. On the other hand, when there is a lot of light such as in bright daytime, the pupil shrinks and the light taken in is suppressed. If the brightness of the display screen is the same, the brightness is relatively attenuated when viewed indirectly than when visually viewed directly. Therefore, it is easier for the user to see the displayed contents indirectly when the pupil is "dark" and to let the user directly see the displayed contents when the pupil is "bright" when the pupil is contracted. It leads to.
The display screen may be a dot matrix display that emits light by self-luminous or backlit light, such as an organic EL display or a liquid crystal display (LCD). In general, the HUD often requires a high-brightness display method so that the amount of light is reduced by reflection and the HUD can be visually recognized in the daytime. However, according to the configuration of the means 1, the first display mode in which the display screen is reflected by a reflector so that the user can indirectly see the displayed contents is a situation in which the surroundings become dark, for example, when a headlight is required. For example, it is not necessary to have such a large brightness because it may be limited to nighttime, etc. On the other hand, the second display mode in which the user can directly see the display contents of the display screen is to take a bright surrounding situation such as daytime. it can. Then, a dot matrix display such as an inexpensive general-purpose liquid crystal can be used, which contributes to cost reduction. In addition, it is possible to maintain a high resolution and a beautiful display even when viewed directly.
In addition, the "ambient brightness" depends on the surrounding environment. For example, it can be said that the room where the daytime is shining is considerably brighter than the nighttime. However, even in the daytime, if it is raining or cloudy, it feels much less and darker than the amount of light when the sun is shining. Further, even at night, it can be said that the state under lighting, for example, when considering a vehicle, is bright in a tunnel or illuminated by the headlights of an oncoming vehicle. Therefore, the first display mode may be selected even in the daytime, and conversely, the second display mode may be selected even in the nighttime.
Here, the "reflector" may be a mirror body or a transparent body as long as it can visually reflect the image light projected from the display screen to the user. Even if it is a transparent body, the transparent body is a half mirror, that is, a combiner because the user cannot see it unless the image light projected from the display screen is reflected. The reflected virtual image may be a two-dimensional image or a three-dimensional hologram.
In the case of "reflecting on a reflector", the display screen may be reflected directly on the reflector, and the light is reflected on an optical system, for example, a mirror or passed through a lens before reaching the reflector. You may.

Further, as the means 2, it is preferable that either the first display mode or the second display mode can be selected.
This makes it possible to visually select the information by selecting either the first or second display mode that the user feels easy to see. For example, when the surroundings are felt to be dark even in the daytime, the user can select the first display mode because it is easier to see the displayed contents indirectly. On the contrary, the second display mode can be selected because it is easier to see the displayed contents directly if the lighting is sufficient even at night.
The selection may be made by the user himself / herself depending on the subjectivity of the user, but it is preferable that there is a selection means or a changing means for appropriately changing between the first display mode and the second display mode for selection. When the user himself / herself selects, it is preferable to have a selection means capable of selecting either the first display mode or the second display mode. As the selection means, for example, an operation means such as a changeover switch or a remote controller is preferable. As the selection means or the changing means, for example, it may be automatically performed by a control means as described later.
Further, as the means 3, the user's own line-of-sight direction with respect to the reflector in the first display mode and the user's line-of-sight direction with respect to the display screen in the second display mode may be the same direction.
As a result, the user can continue to look at the display screen without moving the line of sight in both the first display mode and the second display mode. Here, "the same line-of-sight direction" may be defined as only one point direction, but it may be configured as a concept having a width that fits within the visual field including the line-of-sight direction.

Further, as the means 4, the control means controls so that the inverted image is displayed on the display screen in the first display mode and the normal image which is not inverted is displayed on the display screen in the second display mode. That is good.
In this way, in the first display mode in which the image light is reflected by the reflector and indirectly viewed by the user, the image light is reflected by the reflector and the image is inverted and visually observed, so that the display screen is displayed. On the contrary, by displaying an image inverted face down, an image displayed in a non-symmetrical manner such as a number or a character can be visually recognized as a correct image that can be originally read by the user.
On the other hand, in the second display mode, the user directly visually recognizes the display screen, so that the correct image is displayed on the display screen.

Further, as the means 5, the control means may display the inverted image on the display screen so that the upper side of the visual field of the user who visually observes the reflector in the first display mode is the upper side of the display information.
Since the image reflected by the reflector is on the upper side of the display information on the upper side of the user's field of view, it becomes easier for the user to read an image having a vertical direction such as a number or a character. Similarly, when visually observing the direct display screen of the second display mode, the upper side of the user's field of view may be the upper side of the display information.

Further, as the means 6, the design of the display content visually recognized by the user in the first display mode may be different from the design of the display content visually viewed by the user in the second display mode.
As a result, it is possible to obtain an image of a design according to each visual condition when the display screen is indirectly visually recognized by the user and when the display screen is directly viewed. For example, the far side may be an image of relatively large characters according to the distance to the user. In addition, when the display screen is reflected by a reflector so that the user can indirectly see the displayed contents, for example, in the reflector, the image may be reflected on the front and back depending on the thickness of the reflector and appear as a double image. In that case, it is better not to have a very detailed design, and it may be shown with rough letters or symbols, for example. On the other hand, when the user is allowed to directly view the display screen, such a need is not particularly required. Therefore, when the same characters and numbers are displayed, the second display mode is used rather than the first display mode. It may be displayed small.
The term "design" means that a correct image and an inverted image have the same design in an image displayed in a non-symmetrical manner such as numbers and characters.

Further, as the means 7, the user is notified that the second display mode is easier to see in the first display mode, and the user is notified in the second display mode. It is preferable to provide a notification means for notifying that the first display mode is easier to see.
As a result, for example, when the user is currently indirectly visually observing the display content (in the case of the first display mode), the user is notified that the second display mode is easier to see by changing the ambient brightness. It is possible to select the first display mode that is easy to see. In that case, for example, it is preferable to operate an operating means such as a changeover switch or a remote control (remote controller) to change the display mode.
As such a notification means, it may be an auditory means such as a voice from a speaker to the user, or a visual means on a display screen.

Further, as the means 8, the display screen may be movable between a first position where the display content is indirectly visually recognized by the user and a second position where the display content is directly visible to the user. ..
As a result, by simply moving the display screen between the first position and the second position, the user can see the display screen indirectly (that is, the first display mode) and directly visually (that is, the second display mode). ) Can be selectively enabled.
Further, as the means 9, the control means may control a moving mechanism for moving the display screen so that the display screen is arranged at the first position or the second position.
As a result, the control means controls the moving mechanism and automatically arranges the display screen at the first position or the second position without the user having to move it by hand, which is convenient because the user does not have to move it by himself / herself. Of course, the configuration may be such that the user moves the display screen by himself / herself.

Further, as the means 10, the control means controls the driving operation of the moving mechanism based on the detection value of the light detecting means to move the display screen to either the first position or the second position. It is better to do so.
The control means determines the detection value of the light detection means, that is, the threshold value of the brightness, and drives the moving mechanism depending on whether it is brighter or darker than the value, and arranges the display screen in the first position or the second position. I tried to make it. As a result, the user can visually check the information at a position that is easier for the user to see in either the first display mode or the second display mode depending on the brightness. For example, when it is preferable to use the first display mode in which the display screen is reflected by the reflector and the display content is indirectly visually observed by the user when it is dark at night, the control means has the display screen in the second position. In this case, it can be moved to the first position (in this case, if the display screen is in the second position, it is not moved).
Further, as the means 11, the control means controls the driving operation of the moving mechanism based on the position information from the position detecting means to move the display screen to either the first position or the second position. It is better to let them do it.
The control means can acquire the detected position information (for example, latitude data and longitude data) based on the position information from the position detection means. From the position information and the current time, it is possible to determine what kind of luminosity state the current position is, for example, bright daytime or nighttime, so that the first position or the second position that is more suitable for the user depending on the brightness. You can move the display screen to. The means for measuring the current time may be a position detecting means or a control means. As the position detecting means, for example, GPS (GrobalPositioningSystem) is preferable.

Further, when the means 12 includes both the light detecting means and the position detecting means, the control means controls the driving operation of the moving mechanism based on the position information from the position detecting means at night. The display screen may be moved to either the first position or the second position.
For example, since it is originally dark at night, the control means should control the driving operation of the moving mechanism based on the detection value of the light detecting means, but it is rather strong outside light because it is nighttime. For example, when the system is mounted on a vehicle, it may be judged as "bright" by being exposed to the intense headlights of a temporary opponent vehicle. Changing the display mode with such temporary brightness causes confusion for the user. Therefore, when both the light detection means and the position detection means are provided in this way, the control means preferentially controls the detection value from the position detection means so that the user suitable for nighttime will not be confused. Aspects are possible.

Further, as the means 13, the display screen is arranged at the first position by lying down at the upper position of the housing, and is arranged at the second position by standing up from the first position. It is good to do.
Standing up of the display screen in this way makes it easier for the user to look directly at the display screen, and lying down does not prevent the user from seeing the reflector.
Further, as the means 14, the reflector is arranged so as to face the user at a position farther from the position of the display screen in the standing state with respect to the user, and the display screen is arranged from the standing state toward the reflector. It is better to fall down.
With this configuration, for the user, the display screen facing the user in the upright position is hidden by falling down, and instead, the virtual image of the image light on the display screen is reflected by the reflector to create a characteristic effect. As a result, the user feels it is interesting, and the display mode is switched quickly, so that the user does not feel the stress of switching the display mode so much.

Further, as the means 15, the housing may be held by the holding means at an arbitrary elevation / depression angle with respect to the mounting surface.
If the elevation / depression angle of the housing can be changed arbitrarily in this way, even if the first position and the second position of the display screen are fixed and cannot be changed, the angle of the housing itself can be changed. The orientation of the display screen at the first position and the second position with respect to the user can be changed, and the setting can be made according to the line-of-sight direction of the user.
Further, as the means 16, the housing may be held at an arbitrary rotation position by the holding means.
Since the display screen can be directed toward the user regardless of the position of the housing around the user, the flexibility of selecting the position where the housing is installed is improved.
Further, as the means 17, it is preferable that the mounting angle of the reflector with respect to the housing can be changed.
As a result, when the display screen is reflected by the reflector in the first display mode and the display content is indirectly visually observed by the user, the mounting angle of the reflector can be set to a suitable angle according to the line of sight of the user. ..

Further, as the means 18, the reflector may be detachable from the housing.
For example, it is advantageous when the reflector is in the way or when it is damaged and replaced. Further, when the user selects only the second display mode, that is, the usage method of directly visually observing the display screen, the reflector is unnecessary and can be removed.
Further, as the means 19, the reflector may be transparent.
With such a reflector, the surroundings of the display content reflected by the reflector become transparent, so that the display content is displayed as if it were floating in the air, and the design effect is great. In particular, in the case of an arrangement such as the above means 14 in which the display screen and the reflector are arranged overlapping in the front-rear direction from the user's point of view, if the reflector is transparent, the background of the display screen does not become too dark and the user Does not feel dazzling when visually observing the display screen.

Further, as the means 20, it is preferable that the end face of the reflector is roughened and the end face is diffusely reflected by the light emitting means arranged facing the end face.
As a result, the light incident on the reflector from the light emitting means is diffusely reflected at the end face position of the reflector and shines, so that it can be made to stand out, and the design effect is also enhanced. .. At this time, the position where the light emitting means is arranged should not be roughened in order to allow light to efficiently enter the inside of the reflector. Further, it is preferable to make the light emitting means emit light based on the occurrence of some event by the control means. An event is entered in advance when, for example, the radar detector detects a notification target such as a GPS warning, a radar wave warning, or a wireless warning while the vehicle is running, or when it is determined that the time is exactly 0 minutes. This is a case where it is meaningful to notify the user's birthday, etc., and it is good to notify the user.
Further, as the means 21, the reflector may have a concave surface portion for enlarging and displaying the reflected display content.
As a result, the reflector can enlarge the reflected display content, and the user can see the enlarged large screen information as compared with the case where the user directly looks at the display screen without increasing the area of the reflective surface of the reflector. It becomes possible.
Further, as the means 22, both a first reflector having a concave surface portion for enlarging and displaying the display content as the reflector and a second reflector having a flat surface portion not enlarged are provided, and either one is selectively selected. It should be available for.
Thereby, in the first display mode, the user can select a pattern in which the displayed content is enlarged and displayed and a normal pattern in which the display content is not enlarged.

Further, as the means 23, the luminosity of the display screen in the first display mode may be made higher than the luminosity of the display screen in the second display mode.
If the brightness of the display screen is the same as described above, the brightness is relatively attenuated when the display screen is visually observed indirectly than when the display screen is visually observed directly. Therefore, even if the brightness is just right when looking directly, it may feel dark when looking indirectly. Therefore, with such a configuration, it is possible to compensate for the lack of light amount when the display screen is reflected by the reflector in the first display mode and the display content is indirectly visually observed by the user.

Further, as the means 24, the housing is mounted on the vehicle, and the control means displays the display screen when the display screen is in the second position when the drive source of the vehicle is stopped. The normal image that has not been inverted is displayed on the display screen by moving it to the first position, and when the display screen is in the second position, the display screen is inverted as it is without moving. It is preferable to control so that a normal image that is not displayed is displayed.
When an information display system is mounted on the dashboard of a vehicle, for example, and the drive source of the vehicle is stopped, by configuring in this way, the image of the display screen at the second position is directly visually observed from the outside. Can be made to. If the installation location is on the dashboard, it is good for an outside person to see the image on the display screen through the window when the person is lying down on the dashboard. The non-inverted normal image may be an image whose content has nothing to do with the driving of the vehicle. For example, it is preferable to use message information for a third party looking into a stopped vehicle, which is not driving information such as a slogan that warns a third party, a decorative animation, or a company advertisement. That is, it is preferable to use the display screen 14 like a standby screen of a kind of mobile phone or personal computer screen.

Further, as the means 25, the control means may be made to notify the information in the vehicle traveling by voice when the first display mode and the second display mode are not met.
As a result, the user can know the information on the vehicle running without visually observing the display screen directly or indirectly. It includes not only external information such as road traffic information but also internal information such as speed information and fuel consumption information of own vehicle.
Further, as the means 26, the display content to be displayed on the display screen may include external information in the traveling of the vehicle.
Examples of external information on the display screen include road traffic information and the like. Then, internal information such as speed information and fuel consumption information of the own vehicle and information such as a terrestrial digital TV or DVD as an audio device may be switched or displayed on the display screen at the same time.

According to the present invention, indirect visual inspection and direct visual inspection of the display screen according to the user's situation are 1
This is possible with only one display screen.

FIG. 5 is a side view of a state in which the display of the radar detector according to the first embodiment of the present invention is laid down. A side view of the radar detector with the display upright. A perspective view of the main body case of the radar detector with the display upright. A perspective view of the radar detector in a state where the display is laid down in the main body case part. Explanatory drawing explaining the state which arranged the radar detector in a vehicle. Explanatory drawing explaining the state which makes indirect vision in the radar detector. A block diagram illustrating the electrical configuration of the radar detector. A plan view of a state in which message information is scrolled and displayed on the display screen of the radar detector when the vehicle is parked. An explanatory diagram illustrating a state in which the radar detector displaying the message information of FIG. 8 is visually observed from outside the vehicle. The flowchart explaining the position control of the display of the radar detector in the bright case and the dark case. A side view of the radar detector according to the second embodiment of the present invention in a state where the display and the reflection plate are laid down. A side view of the radar detector in a state where the reflection plate is erected from the state shown in FIG. A side view of the radar detector in a state where the display is raised from the state shown in FIG. (A) and (b) are an enlarged front view of a main part for explaining the left and right legs of the reflection plate of the radar detector. Explanatory drawing explaining the attachment state of the leg part of the reflection plate of the radar detector. Explanatory drawing explaining the state which indirect vision is made in the radar detector. A block diagram illustrating the electrical configuration of the radar detector. An explanatory diagram illustrating a state in which a radar detector that displays message information is visually observed from outside the vehicle in another embodiment.

Hereinafter, embodiments of the radar detector 10, which is an electronic device embodying the information display system of the present invention, will be described with reference to the drawings.
(Embodiment 1)
As shown in FIGS. 1 to 4, the radar detector 10 for a vehicle according to the first embodiment includes a main body case 11 as a housing having a flat and substantially rectangular parallelepiped shape. The upper surface side of the rear end of the main body case 11 is a slanted wall portion 11a formed in an obliquely cut shape.
A display 13 composed of a liquid crystal display (LCD) module is arranged on the top plate 11b side of the main body case 11. The display 13 (that is, the LCD module) is an electronic device and a visual display device composed of a liquid crystal unit including a liquid crystal layer, a substrate, a color filter, etc., a backlight unit, a drive circuit, a power supply circuit, and the like. The display 13 has a flat and thin rectangular outer shape, and the front side thereof is a display screen 14. The front-rear width of the display 13 is slightly shorter than the front-rear width of the main body case 11, and the left-right width is formed to be the same as the left-right width of the main body case 11. A flexible cord 15 containing a data line, a feeder line, and the like extends from the end face position on the base side (left direction in FIG. 1) of the display 13. The flexible cord 15 is drawn into the main body case 11 from a slit (passage) 20 formed in the front wall 11c of the main body case 11.
Ear-shaped support portions 1 on both sides of the display 13 near the base in a direction orthogonal to the surface direction of the display screen 14.
6 is formed in an overhanging shape. The binaural support portions 16 are arranged to face each other, and a rotation shaft 17 is formed so as to project from the inner surface thereof. The pair of rotating shafts 17 arranged on the coaxial line are inserted into the left and right side walls 11d of the main body case 11 and are rotatably supported. A motor device 18 is arranged at a front position in the main body case 11. The motor device 18 is a geared motor composed of a brushless DC motor and a speed reducer, and the rotation shaft 17 is coaxially connected to the output shaft thereof. A rotary encoder 19 described later is provided in the geared motor. The display 13 is rotated about the rotation shaft 17 by the drive of the motor device 18 and is moved between the first position in which the display is tilted in FIGS. 1 and 4 and the second position in which the display is upright in FIGS. 2 and 3. Move back and forth. The motor device 18 determines the first position and the second position by acquiring the phase at the time of rotation by the rotary encoder 19, and can stop at each position.

As shown in FIGS. 1 and 2, a control unit 21 to which the flexible cord 15 is connected is arranged behind the inside of the main body case 11. The control unit 21 includes a substrate, a power supply circuit mounted on the substrate, a controller, a wireless and microwave receiver, a card reader, and the like. The electrical configuration of the control unit 21 will be described later. The GPS receiver 22 is arranged at a position adjacent to the control unit 21 in the main body case 11 and facing the inclined wall portion 11a of the main body case 11. An optical sensor 23 is arranged on the outer surface of the inclined wall portion 11a.
A speaker device 24 is arranged on the back surface of the front wall 11c of the main body case 11. A sound hole 25 for transmitting the sound of the speaker device 24 to the outside is formed in the front wall 11c. An infrared light receiving unit 26 is formed at a position adjacent to the sound hole 25. The infrared light receiving unit 26 is a port for receiving IrDA standard infrared data from a remote controller as an operating means (not shown). A marked panel 27 is arranged at a position adjacent to the infrared receiving unit 26. The marked panel 27 is a glass plate, and in the center is a narrative pattern 27a that imitates a dynamic posture just before an animal (here, a cat) jumps on a prey. In the panel 27 with a mark, the pattern 27a is hollowed out so that only the pattern 27a portion can transmit light and the surrounding area does not transmit light, the surrounding area is light-shielded, and the hollowed out portion is colored so that visible light can be transmitted. There is. A light emitting diode (hereinafter referred to as LED) 28 is arranged on the back side of the marked panel 27 and at a position facing the pattern 27a. A main switch (not shown) is arranged below the main body case 11, and a microSD card as a memory card is inserted at a position facing the control unit 21 of the side wall 11d on the front side in FIG. 1 of the main body case 11. A slot 29 for this is formed. A main cable (not shown) extends from the back of the main body case 11 so that it can be connected to a vehicle diagnostic connector (not shown) provided inside the vehicle. In the first embodiment, the power source is acquired together with the vehicle information from the IGN signal terminal in the vehicle diagnostic connector, but for example, a DC power supply jack that acquires the power source from the cigar socket may be provided.

As shown in FIGS. 1 to 4, the main body case 11 is held in a cantilever shape by a stand 30 as a holding means. The stand 30 is composed of a bracket portion 31 and a base 32. The bracket portion 31 is composed of a ball 33 and a slider 34 connected to the ball 33. The balls 33 are stored in a storage portion 35 having a curved surface corresponding to the balls 33 on the base 32 side. The stand 30 can be freely rotated within a range in which the bracket portion 31 side does not interfere with the base 32 side. In the stand 30 having such a configuration, the slider 34 is fitted to the guide rail 36 formed on the bottom surface of the main body case 11 from the rear side (right side in FIG. 1), and the guide rail 36 guides the slider 34, which is not shown. It is fixed by engaging the engaging portion with the main body case 11 side. The stand 30 is fixed at an arbitrary position in the vehicle (for example, on the dashboard D) by a double-sided tape (not shown) on the bottom surface of the base 32.

Next, the electrical configuration of the control unit 21 of the radar detector 10 will be described based on the block diagram of FIG. Although the configuration not directly related to the present invention is omitted, it is preferable to adopt the same configuration as the conventional radar detector, for example.
In addition to the above-mentioned display 13, motor device 18, rotary encoder 19, GPS receiver 22, optical sensor 23, speaker device 24, and LED 28, the controller MC as a control means includes a microwave detector 41, a wireless receiver 42, and the like. The SD card reader 43, the database 44, and the like are connected to each other.
The controller MC is composed of a well-known CPU, a memory such as ROM and RAM, a timer, and the like. The map data is called up in the ROM in the controller MC, and is displayed on the display unit 14 in association with the obtained target data, the detection data of the speed measuring device (mobile radar or the like (hereinafter, simply referred to as “radar”), or the like. A map display program to be generated, a GPS information processing program that processes GPS information received by the GPS receiver 22, a microwave determination program that determines the microwave received by the microwave detector 41, and a radio receiver 42 that determines the microwave. A radio wave judgment program that determines radio waves, a vehicle information processing program that arbitrarily acquires various vehicle information output from a vehicle diagnosis connector and executes calculations such as fuel flow rate and various fuel consumption based on the information, and a user's Various programs such as a layout / standby screen display program for displaying a predetermined layout and a standby image on the display screen 14 by an operation, an OS (Operation System), and the like are stored. The position detected by the GPS receiver 22 is stored in the RAM. Information, various vehicle information acquired via the K line of the vehicle diagnostic connector or CAN, and calculated calculated values are stored.

The GPS receiver 22 as the current position acquisition means, the speed acquisition means, and the current time acquisition means detects the position of the own vehicle at the current time based on the instruction of the controller MC. The detected position information is the speed, latitude, longitude, altitude and time of the own vehicle. The microwave detector 41 detects a predetermined microwave from the received microwave. The radio receiver 42 detects a predetermined radio wave from the received radio wave. The SD card reader 43 reads the data of the microSD card inserted in the slot 29 to be inserted, or updates the data of the microSD card. The database 44 is a non-volatile memory (for example, EEPROM) in the controller MC or externally attached to the controller MC. In this embodiment, the database 44 contains major roads, major facilities (for example, service areas, parking areas, highway oasis, roadside stations, parking lots, etc.), and major transportation systems (for example, N system, loop coil, H system). , LH system, radar type orbis, etc.) position data and map data (schematic diagram and photographic data) are stored in association with audio data.

Further, in the electrical configuration, the controller MC executes the following control.
The controller MC drives the motor device 18 to bring the display 13 into a prone first position or an upright second position based on the values detected by the GPS receiver 22 and / or the optical sensor 23. The controller MC moves in the second position direction if the value detected by the GPS receiver 22 or the optical sensor 23 determines that the display 13 is not appropriate when it is currently in the first position. Drives the motor device 18. On the other hand, if it is determined that the current position is appropriate, the motor device 18 is not driven. Similarly, when the display 13 is currently in the second position and it is determined that it is not appropriate, the motor device 18 is driven so as to move in the first position direction. On the other hand, if it is determined that it is appropriate to be in the second position at present, the motor device 18 is not driven. When the motor device 18 is driven, the controller MC acquires the phase at the time of rotation by the rotary encoder 19 and stops the drive of the motor device 18 at the first position and the second position based on the value.

Further, when the display 13 is in the first position where the display 13 is laid down on the display screen 14, the controller MC reverses the mirror image of the characters in a correctly readable state as shown in FIG. 4, for example, in the laying mode, and displays the display contents. The display content is such that the upper side of is the rotation base side. The layout of the display screen 14 and the information displayed on the screen can be arbitrarily selected by the user from the database 44 and set by using the remote controller. In FIG. 4, as an example of the layout of indirect vision, the speed number 51 that digitally displays the speed is displayed large in the center, and the corresponding icons 52 of the GPS warning, the radar wave warning, and the wireless warning are displayed diagonally above the number. .. The icon 52 is displayed on the display screen 14 for a certain period of time when a notification target such as a GPS alarm, a radar wave alarm, or a wireless alarm is detected. Below the speed number 51, a speed meter 53, which is an analog display of the speed, is displayed.
On the other hand, when the display 13 is in the upright second position, the display screen 14 is set to the upright mode and displayed in the correct orientation as shown in FIG. At this time, unlike the lodging mode, the display is displayed so that the lower side of the display content, which is the lower side when standing up, is the rotation base side. In FIG. 3, as an example of the layout for direct viewing, the speed meter 55 that displays the speed in an analog manner and the speed number 56 that displays the speed digitally are displayed so as to overlap each other, and the ecometer 57 and the clock 58 are arranged on the sides thereof. ing. Below the main display, an icon 59 meaning the H system as a display when a notification target such as a GPS alarm, a radar wave warning, or a radio warning is detected, and a speed limit at the current position and the distance to the notification target ( Here, an icon 60 meaning 50 km / H), a display of a notification target (here, “H system”), a display 61 showing the distance and direction to the notification target, and a digital time display 62 are arranged. ing. The icon 52 and the icon 59 have the same meaning, but FIG. 4, which is an indirect view, is displayed larger. In the first embodiment, the controller MC determines whether the display 13 is in the first position or the second position based on the numerical value of the rotary encoder 19. Further, the switching timing of the two types of display screens 14 is also performed based on the numerical value corresponding to the first position or the second position of the rotary encoder 19.

Further, when the controller MC determines that the vehicle is stopped based on the vehicle information acquired from the vehicle diagnosis connector, the display screen 14 at the first position is correct without mirror image inversion as shown in FIG. 8, for example. Display in the orientation. However, unlike FIG. 3, the display direction at this time is such that the upper side of the display content is the rotation base side. That is, the display screen 14 in the collapsed state as shown in FIG. 9 is displayed upside down from FIG. 3 so as to be easy to read when viewed from the outside on the front window FW side. The display here is not information about driving such as slogans that warn third parties, decorative animations, and company advertisements, but message information to third parties looking into the stopped vehicle. In the first embodiment, the controller MC scrolls and displays such message information on the display screen 14. For example, the display screen 14 is used as a kind of standby screen by repeatedly scrolling and displaying the characters "Aiming on the vehicle is a crime" and "A alarm is installed. Please do not touch the vehicle". The standby screen data related to the type and layout of such slogans can be arbitrarily selected by the user from the database 44 and set by using the remote controller. In addition, the company name is microSD as a slogan created by the user by allowing the user to use the remote control to enter the "○○" part of the character information of the slogan such as "Give me a slogan". It is saved in the card, and it is arbitrarily called by the remote controller to be enlarged / decorated and displayed on the display screen 14 as a character display.
In the illustrations of FIGS. 3, 4 and 8, the background is expressed in white for convenience of drawing, but in the actual display screen 14, the background is black (that is, relative to characters and the like) so that the displayed contents can be easily seen. It is displayed on a dark background).

Further, the controller MC executes the GPS alarm function at a predetermined timing (for example, at 1-second intervals). The controller MC obtains the distance between the latitude and longitude data of the target object stored in the database 44 and the latitude and longitude data of the current position detected by the GPS receiver 22, and the obtained distance is a predetermined approach distance (for example, within 1 km). ), At the same time as displaying that fact on the display screen 14, the speaker device 24 outputs an approach warning sound indicating that, for example, "1 km ahead, it is a highway service area". At the same time, the LED 28 is made to give a lighting warning by blinking in synchronization with the timing of the sound output from the speaker device 24.
Further, the controller MC executes a radar wave warning function based on detecting a signal corresponding to a microwave in a predetermined frequency band emitted from the radar from the microwave detector 41. When the controller MC determines that the microwave detector 41 has detected a predetermined microwave, the controller MC displays an alarm screen according to the type of microwave on the display unit 14, and also outputs an alarm sound from the speaker device 24. Is. For example, when a microwave in the microwave frequency band emitted by a radar is detected by the microwave detector 41, for example, a radar icon, a schematic diagram, or a photograph stored in the database 44 is displayed on the display unit 14, and the display unit 14 is displayed. The voice data stored in the database 44 is read out, and the speaker device 17 makes a voice notification such as "50 m ahead H system". At the same time, the LED 28 is made to give a lighting warning by blinking in synchronization with the timing of the sound output from the speaker device 24.
When the controller MC receives a radio wave emitted by an emergency vehicle or the like by the wireless receiver 15, it executes a wireless alarm function that issues an alarm so as not to interfere with the running or the like. In the radio alarm function, control radio, car location radio, digital radio, extra small radio, station activity radio, police telephone, police activity radio, wrecker radio, heli-tele radio, fire heli-tele radio, fire-fighting radio, emergency radio, highway radio , The frequency of the security radio, etc. is scanned, and when the radio is received at the scanned frequency, for example, an icon or a schematic diagram indicating that the radio corresponding to the frequency stored in the database 44 for each radio type is received is displayed. It is displayed on the display unit 14 as an alarm screen, and the audio data stored in the database 44 for each wireless type is read out, and the alarm audio indicating the wireless type is output from the speaker device 24. For example, when a crackdown radio is received, a voice such as "It is a crackdown radio. Speed caution" is output. At the same time, the LED 28 is made to give a lighting warning by blinking in synchronization with the timing of the sound output from the speaker device 24.

The operation of the radar detector 10 having such a configuration will be described together with the control of the controller MC.
First, as shown in FIG. 5, when using the radar detector 10, the user installs the radar detector 10 at a position that does not interfere with the front view through the front window FW on the dashboard D in the vehicle, and the vehicle diagnostic connector (not shown). Connect to and turn on the main switch. In the installation, the main body case 11 is arranged so that the optical sensor 23 arranged on the inclined wall portion 12 faces the front, that is, the front window FW. Then, the main body for the user so that the user (driver) to be used in advance is in a suitable position for directly viewing the display screen 14 and the display screen 14 is in a suitable position for visually observing the virtual image reflected on the front window FW. The orientation of the case 11 and the angle with respect to the dashboard D are determined by appropriately moving the main body case 11 with respect to the stand 30.
When the user can drive the vehicle (for example, the engine is on in the case of an engine vehicle) or the accessory power supply (ACC) is turned on, the radar detector 10 is automatically powered on via the vehicle diagnostic connector. .. The display 13 of the radar detector 10 is in the first position (falling state) of FIG. 1, which is in the retracted state in the initial state. Hereinafter, the processing of the controller MC after the power is turned on will be described with reference to the flowchart of FIG. 10, and at the same time, the operation of the radar detector 10 will be described. If the following processing is performed frequently, the display 13 may stand up and fall down many times at a short timing, which may be annoying. Therefore, the brightness may change significantly during a time period or the like. It may be performed in minutes or hours at long intervals that take into account changes in the weather. For example, the following is executed every 10 minutes.
First, in step S1, the controller MC determines whether the current time is night or day based on the position information and the time information received by the GPS receiver 22. Then, when it is determined in step S1 that it is night, the controller MC determines in step S2 whether or not the display 13 is currently in the first position. This is determined based on the detection value of the rotary encoder 19 described above. When it is determined in step S2 that the position is the first position, in step S3, the controller MC mirrors the display content of the normal readable mode on the display screen 14 in a face-down manner, and the upper side of the entire display content is the display screen. The process is temporarily terminated by controlling the display on the display screen 14 so that it is on the base side of 14 (that is, the lower side when viewed directly). In such a case, as shown in FIGS. 5 and 6, the display screen 14 is reflected by the front window FW, and the virtual image is displayed as if it floats in the hollow outside the front window FW and is visually recognized by the user. Become. The text information in this virtual image state is in the correct orientation that a person can normally read (recognize), and the upper side of the displayed image is the upper side of the user's field of view, which is also the correct vertical direction that a person can normally recognize. At this time, since it is nighttime, the surroundings are dark, and the display screen 14, which often feels dazzling when viewed directly at night, is not too dazzling, but is reflected by the front window FW and the amount of light is attenuated, so that the user is just right. The display screen 14 can be viewed with a good amount of light.
On the other hand, if it is determined in step S2 that the display 13 is not in the first position (that is, in the second position), the motor device 18 is driven in order to move the display 13 to the first position in step S4. The display 13 is moved to the first position. Then, the controller MC executes the process of step S3.

On the other hand, when the controller MC determines in step S1 that it is not night, it is assumed that it is daytime, and whether or not the brightness is higher than the predetermined threshold value by the optical sensor 23 in step S5 for the first time, that is, Determine if it is bright enough. In this way, the reason why the GPS receiver 22 first executes the judgment and then the optical sensor 23 makes the judgment is that, for example, the headlight of a car used at night is judged only by the optical sensor 23. This is to prevent malfunction in such a case because the optical sensor 23 may calculate a value higher than the threshold value due to the light or the like. If it is determined in step S5 that the brightness is above the predetermined threshold value, in step S6, the controller MC determines whether or not the display 13 is currently in the first position in the same manner as described above. In this case, since it is preferable that the display 13 is in the second position, if it is determined that the display 13 is in the first position, the controller MC drives the motor device 18 in step S7 to move the display screen 14 to the second position (standing up). Move to (state) so that the displayed content is not inverted face down in step S8 and the lower side of the entire displayed content is the base side of the display screen 14 (that is, a normal person normally recognizes the same as above). (Correct vertical direction that can be done) The process is temporarily terminated by controlling the display on the display screen 14. In such a case, the user can directly see the display screen 14 on the front side (that is, near the user) of the main body case 11 as shown in FIG. At this time, since the daytime is sufficiently bright, the user does not feel dazzling when looking directly at the display screen 14 because the pupils are opened, and the user can see with just the right amount of light.
On the other hand, if it is determined in step S6 that it is not the first position, it is determined that the display 13 is already in the second position (standing state), the process shifts to step S8, and the controller MC performs the process of step S8. Let it run.

On the other hand, when it is determined in step S5 that the brightness is lower than the predetermined threshold value, it means that the surroundings are not bright and it is rainy weather, cloudy weather, evening, etc., which is not night but has a small amount of light. to decide. Then, in step S9, the controller MC determines whether or not the display 13 is currently in the first position in the same manner as described above. In this case, since it is preferable that the display 13 is in the first position, if it is determined that the display 13 is in the first position, the controller MC mirrors the display contents of the normal readable mode on the display screen 14 in step S10. The process is temporarily terminated by controlling the display on the display screen 14 so that the upper side of the entire display content is the base side (that is, the lower side when viewed directly) of the display screen 14 in the orientation mode. On the other hand, if it is determined in step S9 that the position is not the first position, the display 13 is determined to be in the second position (standing state), and the controller MC drives the motor device 18 in step S11 to display the display screen 14. After moving to the position 1 (standing state), the controller MC executes the process of step S10, and the process ends once.

In such a configuration, when the radar detector 10 detects a notification target such as a GPS alarm, a radar wave alarm, or a wireless alarm while the vehicle is running, the second position (falling state) is the second. Even in the position (standing state), the display screen 14 is displayed at each position as shown in FIGS. 3 and 4, and the user can indirectly or directly visually observe the displayed contents in an appropriate visual environment. .. At the same time, the sound is notified from the speaker device 24 through the sound hole 25, and when the LED 28 blinks, the pattern 27a of the marked panel 27 blinks and shines to alert the user.
Then, when the controller MC detects the engine stop information of the vehicle from the vehicle diagnosis connector when the vehicle is stopped, if the display 13 of the radar detector 10 is in the first position (falling state), it is at that position. When the vehicle is in the second position (standing state), the motor device 18 is driven so as to move to the first position (falling state), and the control for notifying the user of the driving information is terminated.
Further, when the controller MC detects that the engine of the vehicle has stopped, a correct image in which the display content is upside down on the display screen 14 after a predetermined time is not mirror-reversed, for example, a kind as shown in FIG. Display as a standby image.

The user can arbitrarily change the setting conditions from the infrared receiver 26 by operating a remote controller (not shown). For example, the layout of the display screen 14 and the types of various information displayed on the screen can be exchanged and changed (layouts other than those shown in FIGS. 3 and 4 and information related to driving displayed in FIGS. 3 and 4 can be displayed. ), Change the brightness of the display screen 14, stop the audio output from the speaker device 24, always use the display 13 only in the first position (fallen state), and conversely, always the first. It should be used only in the 2 position (standing state). Alternatively, the display function of the display screen 14 is not used at all (that is, the display 13 is held in the first position), and the information is notified only by the audio output from the speaker device 24 or the lighting of the pattern 27a of the panel 27 with the mark (and). It is used to make the speaker.
In addition, the user can operate the remote controller to set whether or not to display the standby image. Further, in the case of displaying, the setting conditions such as the display timing, the type of the standby image, and the display method of whether or not to scroll can be arbitrarily changed.

With the above configuration, the radar detector 10 of the first embodiment has the following effects.
(1) Since the direct vision and the indirect vision are automatically changed according to the brightness as the conditions for visually observing the display screen 14, the user can easily see the display screen 14 in an appropriate environment even in nighttime, dark daytime, or bright daytime conditions. Information can be obtained at.
(2) Since the same display screen 14 of the display 13 is used for direct vision and indirect vision, the radar detector 10 is made compact and lightweight, and is handled when the user installs the machine in a narrow vehicle. It is advantageous because it is easy to install and the room for installation is increased.
(3) In indirect vision, the virtual image of the display screen 14 is displayed at a position farther than in the case of direct viewing, and the brightness is also relatively attenuated. Further, depending on the thickness of the front window FW, the virtual image may be duplicated. However, the display content of the display screen 14 in indirect vision is made easier to see by making the display mode different from that in direct vision and making it a simpler and larger pattern.
(4) Since the display 13 is arranged in the first position where the vehicle is laid down when the vehicle is stopped, the display 13 that stands up is less likely to get in the way when the user gets on and off the vehicle or cleans the inside of the vehicle. ..
(5) Since the GPS alarm, the radar wave alarm, and the wireless alarm are notified from the display screen 14 in both direct and indirect vision, the basic function of the radar detector 10 is maintained for the user. In particular, indirect vision makes it difficult for the user to understand what the notification is, so the visibility is improved by displaying the indirect vision in a larger size.
(6) For example, the audio output from the speaker device 24 can be stopped by the user's operation, or conversely, the audio output or (and) the mark 27a of the panel 27 can be turned on without using the display function of the display screen 14. Since it is possible to receive information notification, it is possible for the user to acquire information in various modes.
(7) Since the GPS receiver 22 and the optical sensor 23 are arranged on the side where data can be easily acquired, it is possible for the user to acquire more accurate information.
(8) When the vehicle is stopped and parked, the standby image is displayed on the display screen 14 of the display 13 in the first position (falling state), so that the user desires to display the standby image during parking. It is possible to send various messages to the three parties.
(9) Since the display 13 is composed of only the substrate of the LCD module and does not have an extra frame on the outer circumference, the weight can be reduced and the load when driving the motor device 18 is reduced. Since it is supported by the flexible cord 15 at the same time as being supported by the binaural support portion 16, the display screen 14 does not shake significantly due to the vibration of the vehicle even if the weight is reduced, and the screen is easy for the user to see. There is.
(10) Since a dot matrix display such as an LCD that emits light by a backlight light is used as the display screen 14, the surroundings become dark, for example, when a headlight is required in indirect vision, for example, at night. Since it is only necessary to limit the brightness, it is not necessary to have such a large brightness. On the other hand, in a situation where the surroundings are bright such as in the daytime, the user can directly see the display screen 14. Then, a dot matrix display such as an inexpensive general-purpose liquid crystal can be used, which contributes to cost reduction. In addition, it is possible to maintain a high resolution and a beautiful display even when viewed directly.

(Embodiment 2)
In the second embodiment, the reflective plate 71 as a reflector is arranged in the first embodiment. In the illustration of the second embodiment, the same components as those of the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted. As shown in FIGS. 11 to 13, a reflection plate 71 is arranged on the top plate 11b side of the main body case 11 of the radar detector 70 of the second embodiment. The reflective plate 71 is a transparent integrally molded member made of polycarbonate. The reflective plate 71 is composed of a rectangular parallelepiped outer body 72 formed with its inner side surface slightly curved in a concave shape in the vertical and horizontal directions, and a pair of left and right legs 73 formed on the base of the main body 72. A frosted glass-like rough surface is applied to the entire circumference of the end face of the reflective plate 71 (however, as will be described later, only a part of the reflective plate 71 remains transparent). The main body 72 is configured to be wider than the display 13 in the left-right width direction, and is configured to have the same length in the vertical length direction (the overall size is configured to be larger than the display 13). An antireflection coating is applied to the outer surface of the reflection plate 71.
As shown in FIG. 14, a disk 74 is formed inside each of the legs 73. A rotating shaft 75 is formed so as to protrude from the center of the disk 74, and four engaging protrusions 76a to 76d are formed on the outer periphery of the disk 74. As shown in FIG. 15, the reflective plate 71 has a rotating shaft 75 of the leg portion 73 with respect to a shaft hole 77 formed at a position closer to the rear side (position adjacent to the inclined wall portion 11a) of both side walls 11d of the main body case 11. By supporting the shaft, it can swing with respect to the main body case 11. The reflective plate 71 can be removed by bending both legs 73 outward and removing the rotating shaft 75 from the shaft hole 77.

A protrusion 78 having a circular cross section is formed at a position adjacent to the shaft hole 77 of the main body case 11. As shown in FIGS. 14 and 15, the protrusions 78 are arranged at positions capable of interfering with the engaging protrusions 76a to 76d while the reflective plate 71 is mounted on the main body case 11. Therefore, unless a torque equal to or higher than a predetermined value is applied to the reflection plate 71, the engaging protrusions 76a to 76d interfere with the protrusion 78, and the reflection plate 71 cannot be rotated. On the other hand, if a torque equal to or higher than a predetermined value is applied, the disc 74 and the protrusion 78 are bent and the engaging protrusions 76a to 76d get over the protrusion 78, so that the reflection plate 71 can be rotated. In the second embodiment, at the position where the reflection plate 71 of FIG. 14A is upright, the protrusion 78 is fitted between the engaging protrusion 76a and the engaging protrusion 76b, and it is difficult to rotate in any direction. The reflective plate 71 is held. On the other hand, at the position where the reflection plate 71 of FIG. 14B is laid down, the protrusion 78 is fitted between the engagement protrusion 76c and the engagement protrusion 76d, and the reflection plate 71 is similarly held. In the second embodiment, the protrusions 78 are fitted at three positions between the adjacent engaging protrusions 76a to 76d to maintain the posture of the reflective plate 71.
As shown in FIGS. 12 and 13, when the reflection plate 71 is held upright, the trajectory when the display 13 reciprocates between the first position (downturned position) and the second position (upright position). Since it is not inside, the reflective plate 71 does not interfere with the movement of the display 13. When the display 13 is in the first position (downside down position), as shown in FIG. 11, a cover is placed on the display 13 from above to protect the display 13 or not to display on the display screen 14. Can be.
As shown in FIGS. 11 to 13, the LED 80 is arranged on the inclined wall portion 11a behind the main body case 11. The LED 80 is arranged at a position adjacent to the reflection plate 71, and is arranged so that the irradiation direction faces the end face of the reflection plate 71 and points in the internal direction while the reflection plate 71 is upright. Only the end face portion facing the LED 80 is in a transparent state without being roughened, so that light can easily enter.

FIG. 17 is a block diagram illustrating an electrical configuration of the control unit 21 of the radar detector 70 according to the second embodiment. An LED 80 is connected to the controller MC in addition to the electrical configuration of the first embodiment. When an event occurs, the controller MC lights the LED 80 in response to the event and makes a predetermined blinking display to call the user's attention. As an event, in the second embodiment, when the radar detector 70 detects a notification target such as a GPS alarm, a radar wave alarm, or a wireless alarm while the vehicle is traveling (that is, the display screen 14 simultaneously displays that fact. And, when each time exactly 0 minutes is acquired, the user's birthday (executed when the first radar detector 70 on the day of the birthday is activated) by the user's remote control input is prepared. The user can arbitrarily change the setting conditions such as whether or not the infrared light receiving unit 26 emits light from the infrared receiver 26 and what kind of event is used when the infrared light is emitted by operating a remote controller (not shown).

The operation of the radar detector 70 having such a configuration will be described.
At the time of use, the user installs the radar detector 70 on the dashboard D in the vehicle by the same operation as in the first embodiment. Then, the reflective plate 71 of FIG. 11 is initially operated as a protective cover from the position where it is overlapped with the display 13 at the first position, and the state of standing up of FIG. 12 is set. Subsequent usage is the same as that of the radar detector 10 of the first embodiment.
With such a configuration, the user can indirectly or directly appropriate the display contents displayed on the display screen 14 in the radar detector 70 of the second embodiment as well as the radar detector 10 of the first embodiment. It can be visually observed in a good visual environment. In the second embodiment, in indirect vision, as shown in FIG. 16, the display screen 14 is reflected by the inner surface of the reflection plate 71, and the virtual image is displayed as if it floats in the hollow outside of the front window FW to the user. It will be visually observed. Further, also in the second embodiment, as in the first embodiment, the sound is notified from the speaker device 24 through the voice hole 25, and when the LED 28 blinks, the pattern 27a of the marked panel 27 flashes to alert the user. Will be done.
Further, when an event occurs, the LED 80 blinks and emits light to irradiate the reflection plate 71.
When the vehicle is stopped, the display 13 is located at the first position (downside down state) as in the first embodiment. Since the reflective plate 71 is in an upright state even when the vehicle is stopped, the user manually rotates the reflective plate 71 with respect to the main body case 11 in the lodging direction to obtain the state shown in FIG.

With the above configuration, the radar detector 70 of the second embodiment has the following effects in addition to the effects of the first embodiment.
(1) In indirect vision, since the reflection plate 71 is provided separately from the front window FW, the user can indirectly view the user at a closer position, so that the display screen 14 does not have to be so bright.
(2) Since the reflection plate 71 is coated with an antireflection coating, it is difficult for the image to be duplicated and a clear virtual image can be obtained.
(3) The reflective plate 71 is arranged so as to be overlapped with the display 13 at the time of storage, and is useful as a protective cover when the user is set not to look at the display screen 14.
(4) The reflective plate 71 can be appropriately removed, and even if the reflective plate 71 is removed, vehicle information is notified, so that the reflective plate 71 can be used according to the user's policy.
(5) Since the reflection plate 71 enables indirect vision, the radar detector 70 does not necessarily have to be arranged in front of the front window FW, and the user can improve the flexibility of the arrangement position.
(6) Since the reflective surface of the reflective plate 71 is formed in a concave shape, the displayed content to be projected is enlarged, which makes it easier for the user to see.
(7) In the radar detector 10, the stand 30 is composed of a bracket portion 31 and a base 32 for positioning the display 13 for changing the position and the reflection plate 71, and the bracket portion 31 is sufficiently provided with respect to the base 32. It is possible to displace to any position within a wide range of movement. Therefore, the display 13 and the reflection plate 71 cannot rotate and only move between the two fixed positions, but both the display 13 and the reflection plate 71 can be arranged at positions that are sufficiently easy for the user to see.
(8) When an event occurs, the LED 80 blinks and emits light to irradiate the reflection plate 71. Therefore, the end portion of the reflective plate 71 diffusely reflects the light and exerts an illumination effect that surrounds the reflective plate 71, which arouses the playfulness of the user.

The present invention may be embodied and implemented in the following embodiments.
In the first embodiment, a third party displays the inverted display screen 14 of the radar detector 10 installed on the dashboard D from outside the front window FW while the vehicle is parked with the engine stopped. The configuration was such that it could be seen from the bonnet side. For example, in the second embodiment, the virtual image reflected on the upright reflecting plate 71 may be visually observed as shown in FIG. In this case, since a third party visually observes the reflection plate 71 from the back surface of the driver (user) side, the mirror image is inverted as in the first embodiment displayed on the display screen 14. In the correct orientation, the display screen 14 in the collapsed state as in FIG. 8 is displayed upside down from FIG. 3 so as to be easy to read when viewed from the outside on the front window FW side. Of course, also in the second embodiment, it is possible to adopt a configuration in which the reflective plate 71 is removed and the display screen 14 is directly viewed by a third party as in the first embodiment. The user may choose to display in either pattern.
-In the second embodiment, the reflection plate 71 having a concave reflection surface having a magnifying lens effect is prepared. However, since the reflection plate 71 is removable, the reflection surface has a flat reflection surface. The plate may be prepared for replacement and can be replaced with the reflective plate 71 prepared by default. With this configuration, the user can select his or her preference or whichever plate is easier to see.
-In each of the above embodiments, the user uses a remote controller (not shown) to perform various inputs and change the setting mode. However, a touch panel method is used or a switch is separately provided on the main body case 11 or the like. May be good.
Although the rotary encoder 19 is used in each of the above embodiments to detect the rotation position of the display 13, other detection means such as a limit switch and a proximity switch may be used.
-In each of the above embodiments, the motor device 18 for rotating the display 13 is a brushless D.
Although a C motor is used, other types of motors such as servo motors and linear motors may be used.
-In each of the above embodiments, the display 13 is automatically tilted and erected by controlling the motor device 18, but the user manually operates the display 13 without using a driving means such as the motor device 18. You may go by. For example, the display 13 is laid down in the default state, and as a result of detecting by a means capable of detecting brightness such as an optical sensor 23, it is better to stand up (that is, to directly visually check the display screen 14). When the controller MC determines that the brightness is continuing, it notifies the user to that effect, and by the user's operation (manual operation means or, for example, a remote controller or an input switch may be used), the user can change the state from the lying down state to the standing state. (Or vice versa). The user may manually lay down and stand up the display 13 without using a driving means such as a motor. Further, the notification may include a visual notification of a character display indicating that it is easier to see when the display screen is switched, an auditory notification by a voice from a speaker device or a warning sound such as a chime, or both of them. Further, even if there is no means for detecting the brightness, the user may subjectively switch between the lying state and the standing state by the user's operation. Even in such a case, the rotary encoder 19 or other detection means as described above can be used to detect the rotation position of the display 13.

-In each of the above embodiments, both the GPS receiver 22 and the optical sensor 23 are used for the lodging and standing of the display 13, but only one of them may be used.
The amount of light from the backlight of the liquid crystal display serving as the display screen 14 may be changed between the state of indirect viewing in which the display 13 is laid down and the state of direct viewing in which the display 13 is erected. For example, in indirect vision, the light intensity of the backlight may be controlled to be brighter than in direct vision because it is relatively dark with respect to direct vision. On the contrary, the case of direct vision may be controlled to be relatively dark with respect to indirect vision.
-In each of the above embodiments, an example of installing the radar detector 10 on the dashboard D in the vehicle as an electronic device is given, but it is also an example of arranging the radar detector 10 in the vehicle or on the dashboard D. Yes, it may be used as an electronic device other than an in-vehicle electronic device. Therefore, it may be reflected to other than the front window FW of the car. Further, the radar detector 10 may be arranged at another position, for example, the A pillar P shown in FIG. 5, even in the vehicle.
-As the device to be the display screen 14, a light emitting device other than the liquid crystal display, for example, organic electroluminescence (OEL) or LED may be used.
-The material of the reflective plate 71 may be transparent, and transparent plastics such as acrylic and polyester can be used in addition to the above.
The present invention is free to be implemented in a modified manner without departing from the spirit of the present invention.

10 ... Radar detector as an electronic information system, 14 ... Display screen, 71 ... Reflector plate as a reflector, FW ... Front window as a reflector.

Claims (5)

It is an information display system that performs a first display that is reflected by a reflector so that the user can indirectly see the displayed contents, and is provided with a main body and a holding means capable of holding the main body.
The information display system is characterized in that the holding means is configured so that the position of the main body can be displaced by rotation. The information display system according to claim 1, wherein the reflector is configured to be removable from the main body. The information display system according to claim 1 or 2, further comprising a function of performing a second display that allows the user to directly visually check the display contents of the display screen. When the vehicle is stopped, it has a function to display message information to a third party who looks into the stopped vehicle in a different direction from that while driving. <br /> The information display system according to any one of claims 1 to 3. The reflector can be moved to an upright position and a prone position, and the display for displaying the display can be moved to an upright position and a prone position, and both the reflector and the display are prone. One of claims 1 to 4, wherein the reflector protects the display by superimposing the reflector on the display when it is in the position. Described information display system.

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