CN113997771A - Car machine control automobile backdrop system based on polymer dispersed liquid crystal technology and control method thereof - Google Patents

Abstract

The invention discloses a vehicle-mounted control automobile backdrop system based on a polymer dispersed liquid crystal technology and a control method thereof, belonging to the technical field of automobile backdrop control. The invention provides a vehicle-mounted control vehicle backdrop system based on a polymer dispersed liquid crystal technology and a control method thereof.

Description

Car machine control automobile backdrop system based on polymer dispersed liquid crystal technology and control method thereof

Technical Field

The invention discloses a vehicle-mounted machine control automobile backdrop system based on a polymer dispersed liquid crystal technology and a control method thereof, belonging to the technical field of automobile backdrop control.

Background

With the continuous development of automobile technology, the continuous deepening of the electromotion, the intellectualization, the networking and the sharing 'novelty', the automobile becomes an indispensable travel partner in life more and more, and meanwhile, with the gradual improvement of the personalized requirements of people, the differentiation of the automobile becomes an element pursued by people more and more.

At present, the automobile panoramic awning adopts large-size glass, the lighting in the automobile is good, the visual field is wide, the depression in the automobile can be eliminated, a user can better enjoy beautiful scenery when going out, and the user obtains better experience. At present, the panoramic sky screen of the automobile is controlled on the market by raising the head to confirm the position, and although the panoramic sky screen accords with the conventional habit of the driver, the driver is easy to be distracted to cause driving danger, and the panoramic sky screen is not beneficial to the driving safety of the automobile.

Disclosure of Invention

The invention aims to solve the problem that the operation is not beneficial to the driving safety of a vehicle after the position of the panoramic sky screen of the vehicle needs to be confirmed by raising the head in the prior art, and provides a vehicle-mounted control automobile sky screen system based on a polymer dispersed liquid crystal technology and a control method thereof.

The invention aims to solve the problems and is realized by the following technical scheme:

the utility model provides a car machine control car sky curtain system based on polymer dispersion liquid crystal technique, includes car sky curtain glass and the laminating is at the thermal-insulated tectorial membrane of hybridization in its outside, be provided with PDLC diaphragm of adjusting luminance in car sky curtain glass's the double glazing intermediate layer, PDLC diaphragm of adjusting luminance and ECU electronic control unit electric connection, ECU electronic control unit and the big screen electric connection of car machine.

Preferably, the PDLC light modulation diaphragm is conformal to the automobile awning glass.

A control method for controlling an automobile backdrop system by an automobile machine based on a polymer dispersed liquid crystal technology comprises the following steps:

obtaining dimming request data through the large screen of the vehicle machine and feeding the dimming request data back to the ECU;

the ECU receives the dimming data and then identifies the value and the direction of the voltage to be applied;

obtaining an electric field value instruction around the liquid crystal molecules of the PDLC dimming diaphragm through the voltage value and the direction to be applied, and sending the electric field value instruction to the PDLC dimming diaphragm;

the PDLC dimming diaphragm receives an electric field value instruction around liquid crystal molecules of the PDLC dimming diaphragm, executes dimming operation corresponding to the dimming data, generates a light-transmitting state instruction and feeds the light-transmitting state instruction back to the ECU;

the ECU generates a display state instruction after receiving the light transmission state instruction and sends the display state instruction to the vehicle machine large screen;

and after receiving the display state instruction, the large screen of the vehicle machine displays the light transmission state of the PDLC light modulation diaphragm.

Compared with the prior art, the invention has the following beneficial effects:

the invention provides a vehicle-mounted control vehicle backdrop system based on a polymer dispersed liquid crystal technology and a control method thereof.

Drawings

Fig. 1 is an electrical connection diagram of an intelligent touch control automobile awning system based on light valve technology.

Fig. 2 is a schematic diagram of an overall structure of an intelligent touch control automobile backdrop system based on a light valve technology.

The automobile screen comprises 1-automobile awning glass, 2-hybrid heat insulation coating, 3-PDLC light modulation membrane and 4-automobile large screen.

Detailed Description

The invention is further illustrated below with reference to the accompanying figures 1-2:

the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-2, a first embodiment of the present invention provides a vehicle-controlled automotive backdrop system based on polymer dispersed liquid crystal technology, which comprises an automotive backdrop glass 1, a hybrid heat insulation film 2, a PDLC light modulation film 3 and a vehicle-controlled automotive large screen, and the structure and the connection relationship of the above components will be described in detail.

Firstly, introducing automobile canopy glass 1, wherein the periphery of the automobile canopy glass is in sealed lap joint with a metal plate and double-layer toughened glass is formed by bonding PVB films; the hybrid heat insulation film 2 is attached to the outer side of the automobile awning glass 1, and the hybrid heat insulation film 2 improves the original machine film network structure by introducing inorganic particles into an organic network, so that the mechanical property of the film is enhanced, the thermal stability is improved, and the film has excellent performances of absorbing infrared rays and reflecting ultraviolet rays.

The PDLC light modulation diaphragm 3 is arranged in a double-layer glass interlayer of the automobile awning glass 1, the PDLC light modulation diaphragm 3 is conformal with the automobile awning glass 1, the PDLC light modulation diaphragm is a polymer dispersed liquid crystal diaphragm, namely a film capable of adjusting the light passing state through the arrangement of a large number of free liquid crystal molecules in a matrix, a large number of liquid crystals in the film are dispersed in the matrix in micron-scale small droplets, and the refractive index of the film is not matched with that of the matrix because the optical axis of the small droplets formed by the liquid crystal molecules is in free orientation, and when light passes through the matrix, the light is strongly scattered by the droplets to be in an opaque milky state or a semitransparent state. Application of an electric field can adjust the optical axis orientation of the liquid crystal droplets, which when index matched, appear transparent. Upon removal of the electric field, the liquid crystal droplets return to the original astigmatic, i.e. opaque, state.

The PDLC dimming diaphragm 3 is electrically connected with the ECU through a CAN bus, the ECU is electrically connected with the large screen of the vehicle, and the PDLC dimming diaphragm 3, the ECU and the large screen of the vehicle are powered by the vehicle-mounted battery and are started along with the start of the vehicle.

The above describes a car-machine-controlled automotive backdrop system based on the polymer dispersed liquid crystal technology, and the following describes a control method thereof, including:

obtaining dimming request data through the large screen of the vehicle machine and feeding the dimming request data back to the ECU;

the ECU receives the dimming data and then identifies the value and the direction of the voltage to be applied;

obtaining an electric field value instruction around the liquid crystal molecules of the PDLC dimming diaphragm through the voltage value and the direction to be applied, and sending the electric field value instruction to the PDLC dimming diaphragm;

the PDLC dimming diaphragm receives an electric field value instruction around liquid crystal molecules of the PDLC dimming diaphragm, executes dimming operation corresponding to the dimming data, generates a light-transmitting state instruction and feeds the light-transmitting state instruction back to the ECU;

the ECU generates a display state instruction after receiving the light transmission state instruction and sends the display state instruction to the vehicle machine large screen;

and after receiving the display state instruction, the large screen of the vehicle machine displays the light transmission state of the PDLC light modulation diaphragm.

While embodiments of the invention have been disclosed above, it is not intended to be limited to the uses set forth in the specification and examples. It can be applied to all kinds of fields suitable for the present invention. Additional modifications will readily occur to those skilled in the art. It is therefore intended that the invention not be limited to the exact details and illustrations described and illustrated herein, but fall within the scope of the appended claims and equivalents thereof.

Claims (3)

1. The utility model provides a car machine control car sky curtain system based on polymer dispersed liquid crystal technology, includes car sky curtain glass (1) and laminating in the thermal-insulated tectorial membrane (2) of hybridization in its outside, its characterized in that, be provided with PDLC diaphragm (3) of adjusting luminance in the double glazing intermediate layer of car sky curtain glass (1), PDLC diaphragm (3) of adjusting luminance and ECU electronic control unit electric connection, ECU electronic control unit and the big screen electric connection of car machine.

2. The vehicle-mounted machine-controlled automobile backdrop system based on the polymer dispersed liquid crystal technology as claimed in claim 1, wherein the PDLC light modulation diaphragm (3) is conformal to the automobile backdrop glass (1).

3. A control method for controlling an automobile backdrop system by an automobile machine based on a polymer dispersed liquid crystal technology is characterized by comprising the following steps:

obtaining dimming request data through the large screen of the vehicle machine and feeding the dimming request data back to the ECU;

the ECU receives the dimming data and then identifies the value and the direction of the voltage to be applied;

obtaining an electric field value command around the liquid crystal molecules of the PDLC light modulation diaphragm (3) through the voltage value and the direction needing to be applied, and sending the electric field value command to the PDLC light modulation diaphragm (3);

the PDLC dimming diaphragm (3) receives an electric field value instruction around a liquid crystal molecule of the PDLC dimming diaphragm (3) to execute dimming operation corresponding to the dimming data and generate a light-transmitting state instruction, and the light-transmitting state instruction is fed back to the ECU;

the ECU generates a display state instruction after receiving the light transmission state instruction and sends the display state instruction to the vehicle machine large screen;

and after receiving the display state instruction, the large screen of the vehicle machine displays the light transmission state of the PDLC light modulation diaphragm (3).

Images