KR20240030688A - Motion sickness reduction device of vehicle occupants and control method thereof - Google Patents

Abstract

The present invention relates to a device for reducing motion sickness in vehicle occupants and a control method thereof, comprising a housing portion coupled to a dashboard, a lens portion coupled to the housing portion and covering an opening provided in the housing portion, and disposed inside the lens portion. A liquid crystal panel that is transparent or opaque depending on whether power is applied and has a plurality of liquid crystal film portions whose transparency changes in stages in the direction of the current, and a bezel portion that is coupled to the housing portion and disposed inside the liquid crystal panel. and a control unit provided inside the housing unit, electrically connected to the liquid crystal unit, and electrically connected to the vehicle electrical equipment to receive operating signals from the vehicle electrical equipment and individually control the plurality of liquid crystal film units.

Description

Device for reducing motion sickness in vehicle occupants and control method thereof {MOTION SICKNESS REDUCTION DEVICE OF VEHICLE OCCUPANTS AND CONTROL METHOD THEREOF}

The present invention relates to an apparatus for reducing motion sickness in vehicle occupants and a control method thereof, and more specifically, to an apparatus for reducing motion sickness in vehicle occupants that can reduce motion sickness in vehicle occupants by providing visual information to occupants through the vehicle's dashboard; and It is about a method of controlling this.

A self-driving electric vehicle is a vehicle that can automatically drive to a pre-designated destination by recognizing the surrounding situation and vehicle status without the driver's intention. Therefore, passengers in self-driving cars can perform various non-driving tasks, such as reading books or looking at smartphones, within the vehicle. However, this practice also has the problem of causing motion sickness in passengers riding in self-driving cars.

Motion sickness, which is accompanied by dizziness and vomiting when riding a vehicle, is caused by temporary confusion in the brain when there is a mismatch in input between sensory organs (vision, vestibular organs, etc.) that maintain balance or detect movement and posture. do.

People remember in their minds the responses of sensory organs such as eyes and ears to muscle movements, and when similar movements occur later, the sensory organs use the memorized information to predict in advance, prepare, and respond. However, when riding in a vehicle, there is no muscle movement due to movement or the movement is different from existing memories, so there is a mismatch in sensation and motion sickness occurs. Therefore, there is a need to improve this.

The background technology of the present invention is disclosed in Korean Patent Publication No. 10-2022-0051061 (published on April 26, 2022, title of the invention: System and method for reducing motion sickness in vehicle passengers).

The object of the present invention, which was devised to solve the above-described problems, is a motion sickness reduction device for vehicle occupants that can reduce motion sickness in occupants by providing visual information to occupants through color conversion of the dashboard of an autonomous electric vehicle, and the same. The goal is to provide a control method.

The present invention, devised to achieve the above problem, is a device for reducing motion sickness in vehicle occupants, comprising a housing part coupled to a dashboard, a lens part coupled to the housing part and covering an opening provided in the housing part, and the lens. A liquid crystal panel disposed on the inside of the liquid crystal panel, which is transparent or opaque depending on whether power is applied, and has a plurality of liquid crystal film parts whose transparency changes in stages in the direction of the current, coupled to the housing, and inside the liquid crystal film. A control unit is provided inside the bezel portion and the housing portion disposed in the liquid crystal display unit, is electrically connected to the liquid crystal display unit, and is electrically connected to the vehicle electrical equipment to receive operating signals from the vehicle electrical equipment to individually control the plurality of liquid crystal film units. Includes.

The plurality of liquid crystal film units are characterized in that they are arranged along the width direction of the dashboard.

The liquid crystal part is connected to the control part and is provided in the liquid crystal film part and a plurality of liquid crystal application parts with different polarities wired at both ends of the liquid crystal film part so that the current flows in one direction in the longitudinal direction of the liquid crystal film part, and the liquid crystal film part is connected to the control part. A plurality of pieces are arranged to be spaced apart along the longitudinal direction of the film portion, and are characterized by including a current delay portion that flows the current in a detour so that the flow of the current is delayed.

The current delay unit is a first partition having a free end toward one side in the width direction of the liquid crystal film unit, and a second partition arranged to be spaced apart from the first partition and having a free end towards the other side in the width direction of the liquid crystal film unit. It is characterized in that it includes a partition wall part and a bottleneck section provided between the first partition wall part and the second partition wall part, and connecting the first partition wall part and the second partition wall part.

The bezel part is characterized in that a pigment of at least one color is coated.

The lens unit and the bezel unit are arranged to be spaced apart from each other.

The liquid part is formed integrally with the bezel part.

The control unit is characterized in that when an operation signal from the vehicle electrical equipment that detects whether the vehicle turns right, left, goes straight, or moves backward is received, the control unit controls the transparent/opaque operation of the liquid crystal film unit according to the driving direction of the vehicle.

When the control unit receives an operation signal from the vehicle electrical equipment that detects the distance between the vehicle and an occupant located outside the vehicle, it controls the transparent/opaque state operation of the liquid crystal film unit to implement the welcome mode of the vehicle. Do it as

When an operation signal from the smart key is received, the control unit controls the transparent/opaque state operation of the liquid crystal film unit so that the welcome mode of the vehicle is implemented.

The control unit is characterized in that when an operation signal from the vehicle electrical equipment that detects whether the battery provided in the vehicle is charged is received, the liquid crystal film unit controls the transparent/opaque operation of the liquid crystal film unit to display the charging state of the battery.

In addition, the present invention is a control method of a motion sickness reduction device for vehicle occupants, comprising the steps of receiving a signal from a driver terminal, detecting the distance between the vehicle and the driver terminal, and adjusting the distance between the vehicle and the driver terminal to a set distance. If it is detected that it is within the liquid crystal display, converting the liquid crystal display to a transparent state so that the bezel portion inside the liquid crystal display can be recognized from inside the vehicle.

When the time for converting the liquid crystal display to a transparent state has elapsed a set time, the method further includes converting the liquid crystal display to an opaque state so that the bezel portion inside the liquid crystal display cannot be recognized inside the vehicle.

In addition, the present invention is a control method of a motion sickness reduction device for vehicle occupants, comprising the steps of detecting the driving direction of the vehicle and, when the driving direction of the vehicle is detected to be right turn, left turn, straight forward or backward, according to the driving direction of the vehicle. It includes a step of changing the transparency of the liquid crystal display.

In addition, the present invention is a control method of a motion sickness reduction device for vehicle occupants, comprising the steps of detecting whether the vehicle's battery is in a charging mode. When the vehicle's battery is detected to be in a charging mode, the bezel portion inside the liquid crystal display panel can be recognized inside the vehicle. Converting the liquid crystal display to a transparent state and converting the liquid crystal display from a transparent state to an opaque state so that the bezel portion inside the liquid crystal display cannot be recognized from inside the vehicle according to the charge level of the battery.

The present invention provides a liquid crystal display panel assembled on the dashboard of an autonomous electric vehicle that gradually changes transparency in the direction of the current depending on whether power is applied, thereby providing visual information to the occupants according to the driving situation of the vehicle, thereby reducing motion sickness of the occupants. It works.

1 is an external perspective view showing a device for reducing motion sickness for vehicle occupants according to an embodiment of the present invention;
Figure 2 is an exploded perspective view showing a device for reducing motion sickness for vehicle occupants according to an embodiment of the present invention;
Figure 3 is a cross-sectional view taken along line AA of Figure 1;
Figure 4 is a block diagram showing the connection relationship between the control unit and each component in the device for reducing motion sickness for vehicle occupants according to an embodiment of the present invention;
Figure 5 is a plan view and a partial enlarged view showing the liquid crystal film portion of the device for reducing motion sickness for vehicle occupants according to an embodiment of the present invention;
6 to 9 are examples showing the operating state of the liquid crystal display according to the driving direction of the vehicle in the motion sickness reduction device for vehicle occupants according to an embodiment of the present invention;
10 to 12 are exemplary diagrams and control flow diagrams showing the operating state of a motion sickness reduction device for vehicle occupants according to an embodiment of the present invention.

Hereinafter, an embodiment of an apparatus for reducing motion sickness of vehicle occupants and a control method thereof according to the present invention will be described with reference to the attached drawings. In this process, the thickness of lines or sizes of components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are terms defined in consideration of functions in the present invention, and may vary depending on the intention or custom of the user or operator. Therefore, definitions of these terms should be made based on the content throughout this specification.

FIG. 1 is an external perspective view showing a device for reducing motion sickness for vehicle occupants according to an embodiment of the present invention, FIG. 2 is an exploded perspective view showing a device for reducing motion sickness for vehicle occupants according to an embodiment of the present invention, and FIG. 3 is an external perspective view showing a device for reducing motion sickness for vehicle occupants according to an embodiment of the present invention. is a cross-sectional view of A-A, Figure 4 is a block diagram showing the connection relationship between the control unit and each component in the motion sickness reduction device for vehicle occupants according to an embodiment of the present invention, and Figure 5 is a block diagram showing motion sickness for vehicle occupants according to an embodiment of the present invention. This is a top view and partial enlarged view showing the liquid crystal film part of the reduction device.

1 to 5, the apparatus for reducing motion sickness for vehicle occupants according to an embodiment of the present invention includes a housing unit 100, a lens unit 200, a liquid crystal display unit 300, a bezel unit 400, and a control unit 500. ), which is explained in detail as follows.

The housing portion 100 is coupled to the dashboard 10 installed at the front of the vehicle interior. To elaborate, the housing portion 100 is mounted inside the space portion 10a provided in a depressed shape between the upper panel 11 and the lower panel 12 of the dashboard 10. The housing portion 100 may have a box shape and an outer surface facing the interior of the vehicle may be open.

The lens unit 200 is coupled to the outer surface of the housing unit 100. The lens unit 200 is formed in a plate shape and may be coupled to the edge of the housing unit 100 in a form that entirely surrounds the bezel unit 400, which will be described later.

The lens unit 200 may be formed in a curved shape to match the shape of the opening 100a formed in the housing unit 100. The lens unit 200 covers the opening 100a provided on the outer surface of the housing unit 100.

The lens unit 200 may be exposed to the outside and may be made of a transparent material that transmits light. The lens unit 200 may be made of plastic (Acrylonitrile Butadiene Styrene: ABS).

The liquid unit 300 is located inside the lens unit 200. The liquid unit 300 is disposed between the lens unit 200 and the bezel unit 400, which will be described later. The liquid unit 300 may be provided on the outer surface of the bezel unit 400 facing the lens unit 200. To elaborate, the bezel portion 400 and the liquid portion 300 may be injection molded as one piece.

The liquid crystal unit 300 includes a plurality of liquid crystal film units 310. The plurality of liquid crystal film units 310 are arranged vertically in the width direction of the dashboard 10. The liquid crystal film unit 310 is transparent or opaque depending on whether power is applied. The transparency of the liquid crystal film unit 310 changes stepwise in the direction of the current. That is, gradients can be implemented. At this time, the direction of the current is toward the top and bottom of the dashboard 10.

The liquid crystal film unit 310 may be made of Polymer Dispersed Liquid Crystal (PDLC), which is a mixture of polymers and liquid crystals in a certain ratio. When power is applied, it is transparent and transmits light, and when power is turned off, it is opaque. Can block light transmission.

The liquid crystal unit 300 further includes a liquid crystal application unit 320 and a current delay unit 330.

The liquid crystal application unit 320 is connected to the control unit 500, which will be described later, and different polarities are wired at both ends of the liquid crystal film unit 310 so that current flows in one direction in the longitudinal direction of the liquid crystal film unit 310. To elaborate, one polar line is wired at one end in the longitudinal direction of the liquid crystal film portion 310, and an opposite polarity line is wired at the other end. Accordingly, a current direction is formed in the longitudinal direction of the liquid crystal film portion 310.

The current delay unit 330 is provided inside the liquid crystal film unit 310. A plurality of current delay units 330 are arranged to be spaced apart along the longitudinal direction of the liquid crystal film unit 310. The current delay unit 330 delays the flow of current so that the current flows in a detour.

The current delay unit 330 includes a first partition 331, a second partition 332, and a bottleneck section 333.

The first partition 331 is made of a non-conductive material that does not conduct electricity, and is disposed in the width direction of the liquid crystal film part 310, so as not to block the entire width direction of the liquid crystal film part 310. ) is provided with a free end toward one side in the width direction of the liquid crystal film portion 310.

The second partition 332 is made of a non-conductive material that does not conduct electricity, and is arranged to be spaced apart from the first partition 331. The second partition 332 is disposed in the width direction of the liquid crystal film part 310, and the second partition wall part 332 is positioned in the width direction of the liquid crystal film part 310 so as not to block the entire width direction of the liquid crystal film part 310. A free end is provided toward the other side in the width direction.

The bottleneck section 333 is provided between the first partition wall part 331 and the second partition wall part 332. That is, the current formed in the longitudinal direction of the liquid crystal film portion 310 flows in a detour to the left and right in the width direction of the liquid crystal film portion 310 by the first and second partition walls 331 and 332, and the liquid crystal As the current passes through the bottleneck section 333, which is relatively narrow compared to the width of the film portion 310, the flow of current is delayed. Accordingly, a gradient in which transparency gradually decreases in a downward step in the direction of the current can be implemented. In another embodiment, the bottleneck section 333 may connect the first partition 331 and the second partition 332.

The bezel part 400 is coupled to the housing part 100. The bezel portion 400 has a plate shape, and an edge may be coupled to the housing portion 100. The bezel portion 400 may have the same shape as the lens portion 200. In this embodiment, the opening 100a of the housing 100, the lens unit 200, the liquid unit 300, and the bezel unit 400 may be formed to have substantially the same shape.

The bezel portion 400 is located inside the liquid portion 300. At this time, the lens unit 200 and the bezel unit 400 are disposed to be spaced apart, and the lens unit 200 is disposed outside the bezel unit 400. When power is applied to the liquid crystal unit 300 and the liquid crystal film unit 300 becomes transparent, the bezel unit 400 can be recognized from the outside.

To elaborate, the bezel portion 400 may be coated with pigment of at least one color. Pigments may include red dye, green dye, blue dye, and black dye.

For example, the bezel portion 400 is manufactured in black, and when the liquid crystal display 300 becomes transparent, the black color of the bezel portion 400 can be recognized from the outside. The liquid part 300 is formed to surround the bezel part 400, so that the bezel part 400 can be recognized from various angles. Of course, when the liquid crystal display 300 becomes opaque, the shape or color of the bezel portion 400 cannot be recognized from the outside.

The control unit 500 is provided inside the housing unit 100. The control unit 500 may be located inside the bezel unit 400. The control unit 500 is a PCB board and can be connected to a power supply device such as a battery or alternator installed in a vehicle to receive power. The control unit 500 is electrically connected to each of the plurality of liquid crystal film parts 310 by a plurality of liquid crystal application parts 320, and is electrically connected to various vehicle electrical equipment 20 mounted on the vehicle by a cable 510. can be connected

Here, the vehicle electrical equipment 20 includes an ignition device, a charging device, an ignition device, an Engine Management System (EMS), an Electronic Control Transmission System (ETC system), an electronic control drive system (Trans-Axle Control System), and an electronically controlled four-wheel drive. A driving device including an Electronic Control 4 Wheel Drive System, an Anti-lock Brake System, an Automatic Braking System, an Electronic Control Suspension System, and an electronic control Steering system (Electronic Power Steering System), front & back object identification warning system (Front & Back Warning System), AFS (Adaptive Front Light System), TPWS (Tire Pressure Warning System), BSWS (Before Service Warning System), and air bag (Supplemental Safety devices including Restraint System, lighting device, instrumentation device, body control system, automatic temperature control system, AQS (Air Quality System), AV system (Audio & Video System) ), sensor devices, smart keys, and convenience devices including trip computers.

The control unit 500 can individually control the plurality of liquid crystal film units 310 by receiving operating signals from the vehicle electrical equipment 20. To elaborate, the control unit 500 is electrically connected to various vehicle electronic components 20 mounted on the vehicle and can receive operating signals from each vehicle electrical component 20.

Therefore, when the operation signal of each vehicle electrical equipment 20 mounted on the vehicle is received by the control unit 500, power is applied to the liquid crystal film unit 310 by the control unit 500 that controls the liquid crystal film unit 310. or the power may be cut off.

The operation process of the motion sickness reduction device for vehicle occupants according to an embodiment of the present invention consisting of the above-described configuration will be described as follows.

6 to 10 are exemplary views showing the operating state of the liquid crystal display according to the driving direction of the vehicle in the motion sickness reduction device for vehicle occupants according to an embodiment of the present invention.

Referring to FIGS. 1 to 6, when an operation signal from the vehicle electrical equipment 920 that detects a right turn of the vehicle is received, the control unit 500 operates the transparent/opaque state of the liquid crystal film unit 310 according to the right turn driving direction of the vehicle. can be controlled.

To elaborate, when the vehicle turns right, a sequential animation is implemented in which the transparency of the liquid crystal display 300 changes from the right side of the dashboard 10 to the left direction, so that the occupants can recognize the right turn movement of the vehicle. The arrow indicates the direction of current flowing in the longitudinal direction of the liquid crystal film portion 310.

Referring to FIGS. 1 to 5 and 7 , when an operation signal from the vehicle electrical equipment 20 that detects a left turn of the vehicle is received, the control unit 500 adjusts the transparency of the liquid crystal film unit 310 according to the left turn direction of the vehicle. /Can control opacity behavior.

To elaborate, when the vehicle turns left, a sequential animation in which the transparency of the liquid crystal display 300 changes from the left side of the dashboard 10 to the right direction is implemented, so that the occupants can recognize the left turn movement of the vehicle. The arrow indicates the direction of current flowing in the longitudinal direction of the liquid crystal film portion 310.

Referring to FIGS. 1 to 5 and 8 , when an operation signal from the vehicle electrical equipment 20 that detects the vehicle's straight driving direction is received, the control unit 500 adjusts the transparency of the liquid crystal film unit 310 according to the vehicle's straight driving direction. /Can control opacity behavior.

To elaborate, when the vehicle is driven straight, a sequential animation is implemented in which the transparency of the liquid crystal display 300 changes from the top to the bottom of the dashboard 10, so that the occupants can recognize the vehicle's straight movement. The arrow indicates the direction of current flowing in the longitudinal direction of the liquid crystal film portion 310.

Referring to FIGS. 1 to 5 and 9 , when an operation signal from the vehicle electrical equipment 20 that detects the vehicle's reverse direction is received, the control unit 500 adjusts the transparency of the liquid crystal film unit 310 according to the vehicle's reverse travel direction. /Can control opacity behavior.

To elaborate, when the vehicle is traveling backwards, a sequential animation is implemented in which the transparency of the liquid crystal display 300 changes from the bottom to the top of the dashboard 10, so that the occupants can recognize the vehicle's backward movement. The arrow indicates the direction of current flowing in the longitudinal direction of the liquid crystal film portion 310.

10 to 12 are exemplary diagrams and control flow diagrams showing the operating state of a motion sickness reduction device for vehicle occupants according to an embodiment of the present invention.

Referring to FIGS. 1 to 5, 10, and 11, when an operation signal from the vehicle electrical equipment 20 that detects the distance between the vehicle and the occupant located outside the vehicle is received, the control unit 500 enters the vehicle's welcome mode. The transparent/opaque state operation of the liquid crystal film unit 310 can be controlled so that is implemented.

For example, an input signal is received from the driver terminal (S110). At this time, the driver terminal is a terminal carried by the driver and may be a smartphone, laptop, tablet PC, or various wearable terminals capable of wireless communication with the vehicle, including the vehicle's smart key. If the distance between the vehicle and the driver's terminal is detected (S120) and the distance between the vehicle and the driver's terminal is within the set distance (S130), the liquid crystal film unit 310 is converted to a transparent state (S140). If the distance between the vehicle and the driver's terminal is greater than the set distance, the liquid crystal film portion 310 is maintained in an opaque state (S145).

To elaborate, when the control unit 500 receives an operation signal of the vehicle electrical equipment 20 generated when the occupant approaches the vehicle, unlocks the vehicle door, or enters the vehicle, the transparency of the liquid crystal film portion 310 increases in the longitudinal direction. You can implement changing sequential animation.

In addition, when an operation signal from the smart key, which is a vehicle electrical component 20, is received, the control unit 500 implements a sequential animation in which transparency changes in the longitudinal direction of the liquid crystal film unit 310, that is, to implement the welcome mode of the vehicle. The liquid crystal display 300 can be operated. At this time, the liquid crystal display 300 may be operated in conjunction with the operation button of the smart key.

Referring to FIGS. 1 to 5 and 12 , when an operation signal from the vehicle electrical equipment 20 that detects whether the battery provided in the vehicle is charged is received, the control unit 500 controls the liquid crystal film unit to display the charging state of the battery. Transparent/opaque state operation of 310 can be controlled.

To elaborate, when the charging of the battery installed in the electric vehicle begins and the operation signal of the vehicle electrical equipment 20 that detects whether the battery is charged is received by the control unit 500, the liquid crystal display 300 is configured to measure the width of the dashboard 10. A sequential animation in which transparency changes in each direction is implemented so that the battery's charge level can be checked from inside the vehicle, and that the battery is being charged can be confirmed from inside the vehicle.

An apparatus for reducing motion sickness for vehicle occupants and a control method thereof according to an embodiment of the present invention is a liquid crystal display 300 assembled on the dashboard 10 of a self-driving electric vehicle that gradually changes transparency in the direction of the current depending on whether power is applied. By providing passengers with visual information according to the vehicle's driving situation, motion sickness of passengers can be reduced.

The present invention has been described with reference to the embodiments shown in the drawings, but these are merely exemplary, and those skilled in the art will recognize that various modifications and other equivalent embodiments are possible therefrom. You will understand. Therefore, the true technical protection scope of the present invention should be determined by the scope of the patent claims below.

10: Dashboard 20: Vehicle electronics
100: housing portion 100a: opening portion
200: lens unit 300: liquid unit
310: liquid crystal film unit 320: liquid crystal application unit
330: Current delay unit 331: First partition wall unit
332: second partition 333: bottleneck section
400: Bezel part 500: Control part

Claims (15)

A housing portion coupled to the dashboard;
a lens unit coupled to the housing unit and covering an opening provided in the housing unit;
a liquid crystal unit disposed inside the lens unit and having a plurality of liquid crystal film units that are transparent or opaque depending on whether power is applied and whose transparency changes in stages in the direction of electric current;
a bezel portion coupled to the housing portion and disposed inside the liquid crystal display; and
a control unit provided inside the housing unit, electrically connected to the liquid crystal unit, and electrically connected to vehicle electrical equipment to receive operating signals from the vehicle electrical equipment and individually control the plurality of liquid crystal film units;
A device for reducing motion sickness for vehicle occupants, including a device. According to paragraph 1,
An apparatus for reducing motion sickness for vehicle occupants, characterized in that the plurality of liquid crystal film units are arranged along the width direction of the dashboard. According to paragraph 2,
The liquid crystal display,
a plurality of liquid crystal application units connected to the control unit and having different polarities wired at both ends of the liquid crystal film unit so that the current flows in one direction in the longitudinal direction of the liquid crystal film unit; and
A current delay unit provided in the liquid crystal film unit, the plurality of which are spaced apart along the longitudinal direction of the liquid crystal film unit, and which causes the current to flow in a detour so as to delay the flow of the current;
A device for reducing motion sickness for vehicle occupants, further comprising: According to paragraph 3,
The current delay unit,
a first partition having a free end portion toward one side in the width direction of the liquid crystal film portion;
a second partition wall portion disposed to be spaced apart from the first partition wall portion and having a free end portion toward the other side in the width direction of the liquid crystal film portion; and
a bottleneck section provided between the first and second partition walls and connecting the first and second partition walls;
A device for reducing motion sickness for vehicle occupants, comprising: According to paragraph 1,
A device for reducing motion sickness for vehicle occupants, characterized in that the bezel portion is coated with a pigment of at least one color. According to paragraph 1,
A device for reducing motion sickness for vehicle occupants, wherein the lens unit and the bezel unit are spaced apart from each other. According to paragraph 1,
A device for reducing motion sickness for vehicle occupants, wherein the liquid portion is formed integrally with the bezel portion. According to paragraph 1,
The control unit controls the transparent/opaque operation of the liquid crystal film portion according to the driving direction of the vehicle when an operation signal from the vehicle electrical equipment that detects whether the vehicle turns right, left, goes straight, or moves backward is received. motion sickness reduction device. According to paragraph 1,
When the control unit receives an operation signal from the vehicle electrical equipment that detects the distance between the vehicle and an occupant located outside the vehicle, it controls the transparent/opaque state operation of the liquid crystal film unit to implement the welcome mode of the vehicle. A device to reduce motion sickness for vehicle occupants. According to paragraph 1,
When an operation signal from a smart key is received, the control unit controls the transparent/opaque operation of the liquid crystal film unit to implement the welcome mode of the vehicle. According to paragraph 1,
When the control unit receives an operation signal from the vehicle electrical equipment that detects whether the battery provided in the vehicle is charged, the control unit controls the transparent/opaque operation of the liquid crystal film unit to display the charging state of the battery. motion sickness reduction device. Receiving a signal from a driver terminal;
Detecting the distance between the vehicle and the driver terminal; and
When the distance between the vehicle and the driver terminal is detected to be within a set distance, converting the liquid crystal display to a transparent state so that the bezel portion inside the liquid crystal display can be recognized from inside the vehicle;
A method of controlling a device for reducing motion sickness of vehicle occupants, comprising: According to clause 12,
When the time for converting the liquid crystal display to a transparent state has elapsed a set time, converting the liquid crystal display to an opaque state so that the bezel portion inside the liquid crystal display cannot be recognized inside the vehicle;
A control method for a motion sickness reduction device for vehicle occupants, further comprising: Detecting the driving direction of the vehicle; and
When it is detected that the driving direction of the vehicle is right turn, left turn, straight ahead or backward, changing the transparency of the liquid crystal display according to the driving direction of the vehicle;
A control method of a device for reducing motion sickness of vehicle occupants, comprising: Detecting whether the vehicle's battery is in charging mode;
When detecting that the battery of the vehicle is in a charging mode, converting the liquid crystal display to a transparent state so that the bezel portion inside the liquid crystal display can be recognized from inside the vehicle; and
Converting the liquid crystal display from a transparent state to an opaque state so that the bezel portion inside the liquid crystal display cannot be recognized from inside the vehicle according to the charge level of the battery;
A method of controlling a device for reducing motion sickness of vehicle occupants, comprising: