KR20220043982A - Information display apparatus and method for vehicles - Google Patents

Abstract

The present invention relates to an information display apparatus and method for vehicles. The information display apparatus for vehicles comprises: one or more pieces of vehicle glass mounted at different locations in a vehicle and displaying information through transmittance control; a power controller controlling supplied power to adjust transmittance of the one or more pieces of vehicle glass; an occupant detector detecting a user getting in the vehicle and obtaining boarding information; a gaze recognizer acquiring gaze information by tracking the gaze of the user; and a processor selecting at least one of the one or more pieces of vehicle glass as an optimal vehicle glass for displaying information based on at least one of the gaze information and the boarding information when the vehicle autonomously travels, and controlling transmittance of the optimal vehicle glass to display information. Since the light transmittance of a partial region of the vehicle glass is selectively adjusted to display information, there is no need to apply a separate transparent display to the vehicle glass.

Description

INFORMATION DISPLAY APPARATUS AND METHOD FOR VEHICLES

The present invention relates to a vehicle information display apparatus and method.

As autonomous driving technology develops, vehicles are transforming from a means of transportation to a resting place. In such an autonomous vehicle, passengers can take a break while using content (services) such as web surfing, reading, movies, or games. Since the display can be used as a medium for providing content, the proportion of autonomous vehicles is increasing. Recently, technologies for displaying information such as route guidance, vehicle location, vehicle speed and/or warning on the windshield during autonomous driving by applying a transparent display to the windshield of a vehicle have been introduced.

An object of the present invention is to provide a vehicle information display apparatus and method for selectively controlling the light transmittance of a partial area of vehicle glass to display information.

According to embodiments of the present invention, the vehicle information display device is mounted at different positions of the vehicle and supplies power to adjust the transmittance of at least one vehicle glass that displays information through transmittance control, and the transmittance of the at least one vehicle glass. A power controller that controls the vehicle, an occupant detector that detects a user riding in the vehicle and acquires boarding information, a gaze recognizer that tracks the user's gaze to acquire gaze information, and the gaze information and boarding information when the vehicle autonomously drives and a processor that selects at least one of the at least one vehicle glass as an optimum vehicle glass for displaying information based on at least one of the at least one and adjusts transmittance of at least a portion of the optimum vehicle glass to display information.

Each of the at least one vehicle glass includes a first transparent substrate and a second transparent substrate, and a transmittance variable member disposed between the first transparent substrate and the second transparent substrate and capable of selectively controlling transmittance of a partial region. include

The transmittance variable member includes a first transparent electrode plate formed by depositing a transparent electrode in a first direction on one surface of the first film at a predetermined interval, and a transparent electrode in a second direction on one surface of the second film A second transparent electrode plate formed by deposition at predetermined intervals and a polymer having an anisotropic refractive index, the liquid crystal being mounted between the first transparent electrode plate and the second transparent electrode plate.

The first direction and the second direction are different from each other and are any one of a vertical direction, a horizontal direction, and a diagonal direction.

The at least one vehicle glass includes at least one of a windshield glass, a sunroof glass, a door window glass, a rear glass, an inside mirror, and an outside mirror.

The occupant detector detects at least one of a position, an alignment direction, and an angle of the seat on which the user is seated by using a sensor mounted on the seat or a memory of the seat adjustment device.

The gaze recognizer detects the gaze information by using at least one of a camera-based gaze tracking technique and a face tracking technique.

The processor selects the optimal vehicle glass by checking the user's gaze direction and viewing angle based on at least one of the gaze information, the seat alignment direction, and the seat angle.

The vehicle information display device further includes a driving environment sensor detecting driving environment information of the vehicle, wherein the driving environment sensor includes at least one of a radar, a lidar, a camera, a temperature sensor, an illuminance sensor, a rain sensor, and an impact sensor. The driving environment information is acquired using one.

The processor determines at least a partial area of the optimal vehicle glass as the information display area based on at least one of the riding information and the driving environment information.

The processor determines whether privacy protection is required when information is not displayed, and when the privacy protection is required, the at least one vehicle glass is processed to be opaque, and when the privacy protection is unnecessary, the at least one vehicle glass is made transparent handle

In the vehicle information display method according to embodiments of the present invention, the vehicle information display method using at least one vehicle glass mounted at different positions of the vehicle and displaying information through transmittance control, when the vehicle autonomously drives, the vehicle Detecting the user riding in the step of obtaining the user's gaze information and boarding information, based on at least one of the user's gaze information and the boarding information Optimal to display information on at least one of the at least one vehicle glass Selecting the vehicle glass and displaying information by adjusting the transmittance of at least a portion of the optimal vehicle glass.

The step of obtaining the gaze information and the boarding information includes detecting the gaze information using at least one of a camera-based gaze tracking technology and a face tracking technology, and using a sensor mounted on a seat or a memory of a seat adjustment device. and detecting at least one of a position, an alignment direction, and an angle of the seat on which the user is seated.

The step of selecting the optimal vehicle glass may include: checking the user's gaze direction and viewing angle based on at least one of the gaze information, the seat alignment direction, and the seat angle; and at least one of the gaze direction and the viewing angle. based on the step of selecting the optimal vehicle glass.

The method of displaying information for a vehicle further includes determining at least a partial area of the optimal vehicle glass as an information display area based on at least one of the viewing direction and the viewing angle.

The method of displaying information for a vehicle further includes obtaining driving environment information of the vehicle using sensors mounted on the vehicle.

The method of displaying information for a vehicle further includes determining at least a partial area of the optimal vehicle glass as an information display area based on at least one of the riding information and the driving environment information.

The vehicle information display method includes the steps of determining whether privacy protection is required when the information is not displayed, processing the at least one vehicle glass to be opaque when the privacy protection is required, and when the privacy protection is unnecessary, the at least one Including the step of transparently processing the vehicle glass.

According to the present invention, since information is displayed by selectively adjusting the light transmittance of a portion of the vehicle glass, information can be displayed on the vehicle glass without applying a separate transparent display to the vehicle glass.

1 illustrates a structure of a transmittance variable member according to embodiments of the present invention.
FIG. 2 shows a pattern structure of the first transparent electrode plate shown in FIG. 1 .
FIG. 3 shows a pattern structure of the second transparent electrode plate shown in FIG. 1 .
4 is a view for explaining a transparent mode of the transmittance variable member according to embodiments of the present invention.
5 is a view for explaining an opaque mode of the transmittance variable member according to embodiments of the present invention.
6 is a block diagram illustrating a vehicle information display device according to embodiments of the present invention.
7 shows the structure of the vehicle glass 250 shown in FIG.
8 is a flowchart illustrating a method of displaying information for a vehicle according to embodiments of the present invention.
9 shows an example of displaying information on vehicle glass according to an embodiment of the present invention.
10 shows another example of displaying information on vehicle glasses according to an embodiment of the present invention.
11 shows another example of displaying information on vehicle glass according to an embodiment of the present invention.
12 shows an example of using the vehicle glass as an input device according to an embodiment of the present invention.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. In adding reference numerals to the components of each drawing, it should be noted that the same components are given the same reference numerals as much as possible even though they are indicated on different drawings. In addition, in describing the embodiment of the present invention, if it is determined that a detailed description of a related known configuration or function interferes with the understanding of the embodiment of the present invention, the detailed description thereof will be omitted.

In describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only for distinguishing the elements from other elements, and the essence, order, or order of the elements are not limited by the terms. In addition, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

1 shows a structure of a transmittance variable member according to embodiments of the present invention, FIG. 2 shows a pattern structure of a first transparent electrode plate shown in FIG. 1, and FIG. 3 is a second transparent structure shown in FIG. The pattern structure of the electrode plate is shown.

Referring to FIG. 1 , the transmittance variable member 100 may include a first transparent electrode plate 110 , a second transparent electrode plate 120 , and a liquid crystal 130 .

The first transparent electrode plate 110 has a structure in which the first transparent electrode 112 in the form of a thin film is deposited on one surface of the first film 111 . The first transparent electrode 112 may be oriented (rubbed) in a first direction, for example, in a vertical direction, a horizontal direction, or a diagonal direction with respect to an optical axis. The first transparent electrodes 112 may be disposed on the first film 111 at predetermined intervals. For example, as shown in FIG. 2 , the transparent electrodes 112 having a vertical pattern may be formed at regular intervals on the first transparent electrode plate 110 .

The second transparent electrode plate 120 may be made by depositing the transparent electrode 122 in the form of a thin film on either side of the second film 121 . The second transparent electrode 122 may be oriented in the second direction, for example, in a vertical direction, a horizontal direction, or a diagonal direction with respect to the optical axis. The second transparent electrodes 122 may be arranged on the second film 121 at predetermined intervals. For example, referring to FIG. 3 , the second transparent electrode 122 having a horizontal pattern may be formed at regular intervals on the second transparent electrode plate 120 .

Two or more transparent electrodes 112 and 122 are formed on each of the first transparent electrode plate 110 and the second transparent electrode plate 120 , and the voltage supplied to each of the transparent electrodes 112 and 122 can be controlled. The resolution of the information display screen may be determined by the number of the transparent electrodes 112 and 122 formed on the first transparent electrode plate 110 and the second transparent electrode plate 120 . Since the voltage can be controlled for each transparent electrode 112 and 122 , the transmittance of at least a portion of the entire area of the transmittance variable member 100 may be selectively controlled.

The liquid crystal 130 may be mounted between the first transparent electrode plate 110 and the second transparent electrode plate 120 . The liquid crystal 130 is a high molecular polymer having an anisotropic refractive index, and may bypass vertical polarization of a circularly polarized light source into horizontal polarized light. Since the phase control of the liquid crystal 130 is possible using the potential difference between the first transparent electrode plate 110 and the second transparent electrode plate 120 disposed on both sides of the liquid crystal 130, the transmittance of the liquid crystal 130 can be varied. can

4 is a view for explaining a transparent mode of the transmittance variable member according to embodiments of the present invention.

As shown in FIG. 4 , the same voltage is applied to the first transparent electrode plate 110 and the second transparent electrode plate 120 in a state where the first transparent electrode plate 110 and the second transparent electrode plate 120 are overlapped. (eg, 0V or 12V) may be applied to implement the transparent mode of the transmittance variable member 100 . In this case, the first transparent electrode plate 110 and the second transparent electrode plate 120 may have the same isotropic refractive index. The liquid crystal 130 is implemented with a polymer having an anisotropic refractive index, so that it has the same isotropic refractive index (eg, 1.2) as the transparent electrode plates 110 and 120 in a state where no electric field is applied. It may have a refractive index (eg, 1.8). In other words, by applying the same voltage to the first transparent electrode plate 110 and the second transparent electrode plate 120 , a potential difference does not occur between the first transparent electrode plate 110 and the second transparent electrode plate 120 . Therefore, it is possible to control the liquid crystal 130 to have the isotropic refractive index of the transparent electrode plates 110 and 120 . As described above, as the liquid crystal 130 and the transparent electrode plates 110 and 120 have the same isotropic refractive index, the light source is transmitted as unpolarized light to configure a transparent mode.

5 is a view for explaining an opaque mode of the transmittance variable member according to embodiments of the present invention.

As shown in FIG. 5 , a positive (+) voltage is applied to the first transparent electrode plate 110 in a state in which the first transparent electrode plate 110 and the second transparent electrode plate 120 are overlapped, and a second When a negative (-) voltage is applied to the transparent electrode plate 120 , a potential difference occurs between the first transparent electrode plate 110 and the second transparent electrode plate 120 , so that the transmittance variable member 100 is in an opaque mode. can be implemented. At this time, the transparent electrode plates 110 and 120 maintain the isotropic refractive index, and the first transparent electrode plate 110 and the second transparent electrode plate ( 120), the transmittance can be switched by shielding the circularly polarized light by controlling the voltage supplied to it. When the circularly polarized light source is projected on the transmittance variable member 100, circularly polarized light is scattered due to refractive index conversion by the liquid crystal 130, and the linearly polarized light is absorbed or quenched, so that the circularly polarized light does not pass through the transmittance variable member 100. can be implemented

6 is a block diagram showing a vehicle information display device according to embodiments of the present invention, and FIG. 7 shows a structure of the vehicle glass 250 shown in FIG. 6 .

Referring to FIG. 6 , the vehicle information display device (hereinafter, the information display device) 200 includes a gaze recognizer 210 , an occupant detector 220 , a driving environment sensor 230 , a storage 240 , and a vehicle glass 250 . , a power controller 260 and a processor 270 may be included.

The gaze recognizer 210 may recognize the user's gaze (field of view) using at least one multi-function camera (MFC) installed in the vehicle. Here, the user may be a passenger in the vehicle, and may be a driver and/or a passenger. The gaze recognizer 210 may detect (obtain) the user's gaze information by selectively using at least one of known eye tracking techniques. The gaze recognizer 210 may acquire gaze information of the user by grafting a face tracking technology when tracking the gaze. In this case, at least one of known face tracking techniques may be selectively applied. The gaze information may include at least one of a gaze position (eye position) and/or a gaze direction (eg, a vector value).

The occupant detector 220 may acquire boarding information by detecting a user riding in the vehicle. The occupant detector 220 uses a memory of a seat controller and/or a sensor mounted on the seat (eg, a weight sensor, etc.) to determine a seat position (seat position), a seat position (eg, a seat) in which the user is seated. alignment direction and angle, etc.) and/or the number of passengers.

The driving environment sensor 230 may acquire driving environment information by using sensors and/or an electronic control unit (ECU) mounted on the vehicle when the vehicle autonomously drives. Sensors include Radar (Radio Detecting And Ranging, RADAR), Light Detection And Ranging (LiDAR), Optical Camera, Infrared Camera, Ultrasonic Sensor, Temperature Sensor, Light Sensor, Rain Sensor, Shock Sensor, RF (Radio Frequency) Sensor , and/or a location sensor (eg, Global Positioning System (GPS)). The driving environment sensor 230 may also use map information when acquiring driving environment information. The driving environment information may include road location, driving path condition, vehicle speed, illuminance, size and shape of surrounding objects (eg, other vehicles, pedestrians, two-wheeled vehicles, etc.), speed of surrounding objects, whether collision with surrounding objects is possible, and/or It may include at least one of information such as a distance between the vehicle and the surrounding object.

The storage 240 may be a non-transitory storage medium that stores instructions to be executed by the processor 270 . The storage 240 may store information obtained by the gaze recognizer 210 , the occupant detector 220 , and/or the driving environment detector 230 . Also, the storage 240 may store map information, and may store input data and/or output data according to an operation of the processor 270 . The storage 240 is a flash memory, a hard disk, an SD card (Secure Digital Card), RAM (Random Access Memory), SRAM (Static Random Access Memory), ROM (Read Only) Memory), PROM (Programmable Read Only Memory), EEPROM (Electrically Erasable and Programmable ROM), EPROM (Erasable and Programmable ROM), registers, removable disks and at least one of storage media (recording media) such as web storage can be implemented.

At least one vehicle glass 250 may be mounted at different positions within the vehicle. The vehicle glass 250 is a first vehicle glass 150-1, a second vehicle glass 150-2, and a third vehicle glass 150-3 disposed on the front, side, rear, and/or upper surface of the vehicle. and/or may include an N-th vehicle glass 150 -N. For example, the vehicle glass 250 may be a windshield glass, a sunroof glass, a door window glass, a rear glass, an inside mirror, or an outside. It may include at least one of a side mirror (outside mirror).

The vehicle glass 250 may display information by varying the transparency. For example, the vehicle glass 250 includes vehicle state information such as driving vehicle state information, failure information, warning lights, destination direction information, lanes, other vehicle danger warning, pedestrian detection information, and/or weather and/or internal and external attention , warning and/or alarm information may be displayed.

The vehicle glass 250 may include a first transparent substrate 251 , a second transparent substrate 252 , and a transmittance variable member 100 as shown in FIG. 7 . The first transparent substrate 251 and the second transparent substrate 252 may be made of glass, acrylic, plastic, or the like. The transmittance variable member 100 may be disposed between the first transparent substrate 251 and the second transparent substrate 252 . The transmittance variable member 100 may be implemented as a smart transmittance conversion film.

The power controller 260 may be connected to the transmittance variable member 100 of the vehicle glass 250 through a cable for control and power. The power controller 260 may linearly control the voltage supplied to the first transparent electrode plate 110 and the second transparent electrode plate 120 of the transmittance variable member 100 . The power controller 260 may control the phase of the liquid crystal 130 by generating a potential difference between the first transparent electrode plate 110 and the second transparent electrode plate 120 . In other words, the power controller 260 may control the potential difference between the first transparent electrode plate 110 and the second transparent electrode plate 120 to invert or switch the phase of the liquid crystal 130 .

The power controller 260 controls power for each of the transparent electrodes 112 and 122 formed on the first transparent electrode plate 110 and the second transparent electrode plate 120 to thereby control at least a portion of the entire display area of the vehicle glass 250 . transmittance can be adjusted. In addition, the power controller 260 may display information (eg, a symbol and/or text, etc.) using a brightness difference according to the transmittance adjustment.

The processor 270 may control the overall operation of the information display apparatus 200 . The processor 270 includes an Application Specific Integrated Circuit (ASIC), a Digital Signal Processor (DSP), a Programmable Logic Devices (PLD), Field Programmable Gate Arrays (FPGAs), a Central Processing Unit (CPU), a microcontroller, or a microcontroller. It may include at least one of processors (microprocessors).

The processor 270 may check the driving mode of the vehicle. In other words, the processor 270 may determine whether the vehicle is autonomously driving. The processor 270 may communicate with an autonomous driving control device (not shown) through an in-vehicle network to check whether the vehicle is autonomously driving. The in-vehicle network may be implemented as a Controller Area Network (CAN), a Media Oriented Systems Transport (MOST) network, a Local Interconnect Network (LIN), Ethernet, and/or X-by-Wire (Flexray).

When the driving mode of the vehicle is a manual driving mode (ie, a situation in which a driver directly drives) rather than an autonomous driving mode, the processor 270 may adjust the transparency of the vehicle glass 250 to 0% to make it transparent. Meanwhile, when the driving mode of the vehicle is the autonomous driving mode, the processor 270 may adjust the transparency of the vehicle glass 250 to a specific transparency (eg, 50%). For example, the processor 270 controls the power supplied to the transmittance variable member 100 in the vehicle glass 250 through the power controller 260 to adjust the transmittance of the transmittance variable member 100, so the vehicle glass ( 250), the transparency can be controlled.

In addition, the processor 270 may control the transparency of the vehicle glass 250 by determining whether privacy protection is required when the vehicle autonomously drives. That is, the processor 270 may adjust the transparency of the vehicle glass 250 according to whether privacy protection is set. For example, when privacy protection is set, the processor 270 may lower the transmittance of the vehicle glass 250 to block light transmission from the outside. Meanwhile, when privacy protection is not set, the processor 270 may increase the transmittance of the vehicle glass 250 to transmit natural light from the outside.

When determining the driving mode of the vehicle, the processor 270 may activate or deactivate a user view linkage information display function based on preset information. When it is determined that the driving mode of the vehicle is the autonomous driving mode, the processor 270 uses the gaze recognizer 210 , the occupant sensor 220 , and/or the driving environment sensor 230 to provide gaze information, boarding information, and/or driving. Environmental information can be obtained.

The processor 270 may determine an information display position optimized for a view of a user (ie, an occupant) riding in the vehicle. In other words, the processor 270 may select (select) at least one of the vehicle glasses 250 as the optimal vehicle glass based on the user's gaze direction. Additionally, the processor 270 may select an area (information display area) in which information is to be displayed among all areas of the optimal vehicle glass based on the user's gaze direction.

The processor 270 may recognize the user's gaze direction and viewing angle by using the gaze information and the seat position information. The processor 270 may select the vehicle glass 250 on which information is to be displayed based on the recognized gaze direction and/or the viewing angle, and may select an information display area among the entire area of the selected vehicle glass 250 . For example, if the user is seated forward based on the vehicle traveling direction and the seat is not tilted (normal seating position), the processor 270 may determine to display information on the entire area of the front windshield glass. there is. As another example, when the user is seated forward and the seat is fully reclined (full recline seat position), the processor 270 may display the lower area of the front windshield glass and/or the sunroof glass. You can decide to display information in the entire area of . As another example, when the user is seated toward the rear and does not tilt the seat, the processor 270 may determine to display information on the rear glass. In this case, the processor 270 may convert the front windshield glass to an opaque state.

The processor 270 may detect a change in the driving environment based on the driving environment information. The processor 270 may display information by adjusting the transmittance of the information display area of the vehicle glass 250 based on a change in the driving environment. For example, the processor 270 increases the transmittance of the information display area when the illumination is low due to tunnel entry or rain, so that the user can identify information.

The processor 270 may determine an information display area among the entire area of the vehicle glass 250 in consideration of seat information and driving environment information (eg, a road location, a driving path state, speed, illuminance, etc.) during autonomous driving. For example, when the vehicle speed is low and the risk of collision is low, the processor 270 may display the display on the front of the seat on which the user sits among the entire area of the front windshield glass. On the other hand, when the vehicle speed is high and there are many curved roads on the driving route, the processor 270 may display information on the corner or the front center of the front windshield glass.

The processor 270 may switch to the transparent mode by lowering the transmittance of the vehicle glass 250 when another occupant is picked up on the driving route, when an unexpected situation occurs, or when an external shock is sensed.

8 is a flowchart illustrating a method of displaying information for a vehicle according to embodiments of the present invention.

Referring to FIG. 8 , the processor 270 may determine whether the driving mode of the vehicle is the autonomous driving mode ( S100 ). The processor 270 may determine activation or inactivation of the user view linkage information display function based on the setting information pre-stored in the storage 240 .

When it is determined that the autonomous driving mode is the autonomous driving mode, the processor 270 may acquire gaze information, boarding information, and/or driving environment information of a user (ie, an occupant) riding in the vehicle ( S110 ). The processor 270 may acquire gaze information by tracking the gaze of the user through the gaze recognizer 210 . The processor 270 may use the occupant sensor 220 to obtain boarding information including a seat position in which the user is seated, a seat position, and/or the number of occupants. The processor 270 may acquire driving environment information of the vehicle through the driving environment sensor 230 .

The processor 270 may determine whether to display information (S120). The processor 270 may determine information display when there is a request for information display by the user or a request for information display from the autonomous driving control device.

When the information display is determined, the processor 270 may select at least one of the vehicle glasses 250 as the optimal vehicle glass based on the user's field of view (S130). The processor 270 may check the user's field of view based on the user's gaze information and/or seat position information. The processor 270 may determine the vehicle glass 250 most suitable for displaying information in consideration of the user's field of view.

The processor 270 may display information by adjusting the transmittance of the selected vehicle glass 250 ( S140 ). The processor 270 may display information by controlling the power supplied to each transparent electrode of the selected vehicle glass transmittance variable member 100 using the power controller 260 . At this time, a potential difference generated at a point where the first transparent electrode 112 of the first transparent electrode plate 110 of the transmittance variable member 100 overlaps with the second transparent electrode 122 of the second transparent electrode plate 120 . By varying the transmittance of the corresponding overlapping point. Accordingly, the processor 270 may selectively adjust the transparency of at least a portion of the entire area of the vehicle glass 250 .

When it is determined not to display information in S120, the processor 270 may determine whether privacy protection is required (S150). For example, the processor 270 may determine that privacy protection is necessary when the user wants to take a break. Meanwhile, the processor 270 may determine that privacy protection is unnecessary when a dangerous situation occurs.

When privacy protection is required, the processor 270 may switch the vehicle glass 250 to an opaque state (S160). When it is determined that privacy protection is necessary, the processor 270 may process the entire area of the vehicle glass 250 opaquely through power control using the power controller 260 .

Meanwhile, when privacy protection is unnecessary, the processor 270 may change the transmittance of the vehicle glass 250 to a transparent state ( S170 ). When it is determined that privacy protection is unnecessary, the processor 270 may transparently process the entire area of the vehicle glass 250 using the power controller 260 .

9 shows an example of displaying information on vehicle glass according to an embodiment of the present invention.

Referring to FIG. 9 , when the external illuminance is high, the information display apparatus 200 may increase the transmittance of the area 410 in which information is displayed among the entire area of the vehicle glass 400 to make it opaque. The information display apparatus 200 may lower the transmittance of the area 420 in which information is not displayed among the entire area of the vehicle glass 400 to make it transparent. Alternatively, the information display device 200 transparently processes only the transmittance of the area 510 in which information is displayed among the entire area of the vehicle glass 500 by lowering the transmittance, and sets the transmittance of the remaining area 520 to a specific transmittance (eg, 50%). ) to make it translucent.

10 shows another example of displaying information on vehicle glasses according to an embodiment of the present invention.

Referring to FIG. 10 , the information display device 200 selectively inverts the transmittance of a partial region 610 of the entire region of the rear glass 600 to display information when the vehicle needs to transmit information to the rear vehicle while the vehicle is autonomously driving. can be displayed

11 shows another example of displaying information on vehicle glass according to an embodiment of the present invention.

Referring to FIG. 11 , the information display apparatus 200 may display information in conjunction with a head up display (HUD) 710 . The information display device 200 may adjust the transmittance of a predetermined area of the vehicle glass 700 to a specific transmittance (eg, 60%), and the HUD 710 may display information by projecting information on the area with the adjusted transmittance. .

12 shows an example of using the vehicle glass as an input device according to an embodiment of the present invention.

12 , the capacitive touch input device may be implemented by using the transmittance variable member 100 included in the vehicle glass 800 without attaching the touch film to the vehicle glass 800 . In this case, logic capable of recognizing and processing a touch input may be added to the processor 270 of the information display device 200 , or a separate processor capable of recognizing and processing the touch input may be added.

When the function of recognizing a touch input is added to the information display device 200, the information display device 200 recognizes the user's touch input position, and measures the transmittance of the area of the vehicle glass 800 corresponding to the recognized touch position. Since it is variable, the information input by the user can be displayed.

As in the above embodiment, the information display device 200 can selectively control the transmittance of a partial region of the entire region of the vehicle glass 250, so that it can be applied to the window glass and/or the rear glass of a commercial vehicle using this. It is also possible to display advertisements or implement curtains, blinds, or vertical-shaped awnings on the window glass of a vehicle.

The above description is merely illustrative of the technical spirit of the present invention, and various modifications and variations will be possible without departing from the essential characteristics of the present invention by those skilled in the art to which the present invention pertains. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to explain, and the scope of the technical spirit of the present invention is not limited by these embodiments. The protection scope of the present invention should be construed by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

Claims (18)

at least one vehicle glass mounted at different positions of the vehicle and displaying information through transmittance control;
a power controller for controlling a supply power to adjust the transmittance of the at least one vehicle glass;
an occupant detector for detecting a user riding in the vehicle to obtain boarding information;
a gaze recognizer for acquiring gaze information by tracking the gaze of the user; and
When the vehicle autonomously drives, at least one of the at least one vehicle glass is selected as the optimum vehicle glass for displaying information based on at least one of the gaze information and the boarding information, and the transmittance of at least a portion of the optimum vehicle glass is determined An information display device for a vehicle comprising a processor for adjusting and displaying information.
The method according to claim 1,
Each of the at least one vehicle glass,
a first transparent substrate and a second transparent substrate; and
and a transmittance variable member disposed between the first transparent substrate and the second transparent substrate and capable of selectively variably controlling transmittance of a partial region.
3. The method according to claim 2,
The transmittance variable member,
a first transparent electrode plate formed by depositing a transparent electrode in a first direction on one side of the first film at a predetermined interval;
a second transparent electrode plate formed by depositing a transparent electrode in a second direction on one surface of a second film at a predetermined interval; and
A high molecular polymer having an anisotropic refractive index, the vehicle information display device comprising: a liquid crystal mounted between the first transparent electrode plate and the second transparent electrode plate.
4. The method according to claim 3,
and the first direction and the second direction are different from each other and are any one of a vertical direction, a horizontal direction, and a diagonal direction.
The method according to claim 1,
The at least one vehicle glass,
A vehicle information display device comprising at least one of a windshield glass, a sunroof glass, a door window glass, a rear glass, an inside mirror, and an outside mirror.
The method according to claim 1,
The occupant detector is
The information display device for a vehicle, characterized in that detecting at least one of a position, an alignment direction, and an angle of the seat on which the user is seated by using a sensor mounted on the seat or a memory of the seat adjustment device.
The method according to claim 1,
The gaze recognizer,
The information display device for a vehicle, characterized in that the gaze information is detected by using at least one of a camera-based gaze tracking technology and a face tracking technology.
The method according to claim 1,
The processor is
The vehicle information display device, characterized in that the optimal vehicle glass is selected by checking the user's gaze direction and viewing angle based on at least one of the gaze information, the seat alignment direction, and the seat angle.
The method according to claim 1,
Further comprising a driving environment sensor for detecting the driving environment information of the vehicle,
The driving environment sensor,
The vehicle information display device, characterized in that the driving environment information is acquired by using at least one of a radar, a lidar, a camera, a temperature sensor, an illuminance sensor, a rain sensor, and an impact sensor.
10. The method of claim 9,
The processor is
The information display apparatus for a vehicle, characterized in that determining at least a partial area of the optimal vehicle glass as an information display area based on at least one of the riding information and the driving environment information.
The method according to claim 1,
The processor is
When information is not displayed, it is determined whether privacy protection is required, and when the privacy protection is required, the at least one vehicle glass is processed to be opaque,
When the privacy protection is unnecessary, the at least one vehicle glass is transparently processed.
In the vehicle information display method using at least one vehicle glass mounted at different positions of the vehicle and displaying information through transmittance control,
detecting a user riding in the vehicle when the vehicle autonomously drives and acquiring gaze information and boarding information of the user;
selecting at least one of the at least one vehicle glass as an optimal vehicle glass for displaying information based on at least one of the user's gaze information and the boarding information; and
Displaying information by adjusting the transmittance of at least a portion of the optimal vehicle glass.
13. The method of claim 12,
The step of obtaining the gaze information and the boarding information includes:
detecting the gaze information using at least one of a camera-based gaze tracking technology and a face tracking technology; and
and detecting at least one of a position, an alignment direction, and an angle of the seat on which the user is seated by using a sensor mounted on the seat or a memory of a seat adjustment device.
14. The method of claim 13,
The step of selecting the optimal vehicle glass,
checking the user's gaze direction and viewing angle based on at least one of the gaze information, the sheet alignment direction, and the sheet angle; and
and selecting the optimal vehicle glass based on at least one of the viewing direction and the viewing angle.
15. The method of claim 14,
The method for displaying information for a vehicle further comprising determining at least a partial area of the optimal vehicle glass as an information display area based on at least one of the viewing direction and the viewing angle.
13. The method of claim 12,
The method for displaying information for a vehicle, characterized in that it further comprises the step of obtaining driving environment information of the vehicle using sensors mounted on the vehicle.
17. The method of claim 16,
The method for displaying information for a vehicle further comprising the step of determining at least a partial area of the optimal vehicle glass as an information display area based on at least one of the boarding information and the driving environment information.
13. The method of claim 12,
determining whether privacy protection is necessary when the information is not displayed;
if the privacy protection is required, processing the at least one vehicle glass to be opaque; and
When the privacy protection is unnecessary, the vehicle information display method comprising the step of transparently processing the at least one vehicle glass.

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