CN111795363A

CN111795363A - Pixel car light based on electrochromic material

Info

Publication number: CN111795363A
Application number: CN202010743699.6A
Authority: CN
Inventors: 张程浩
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-29
Filing date: 2020-07-29
Publication date: 2020-10-20

Abstract

The invention belongs to the field of electrochromic luminescence, and provides a pixelated car light based on an electrochromic material, which comprises a car light body, a car radar and a car light controller, wherein the car light body comprises a light source, a pixel plate and a glass outer cover; wherein the automotive radar is used for detecting light intensity, nearby vehicles, pedestrians and obstacles; the pixel plate comprises a plurality of pixels with electrochromic layers, and the car lamp controller is used for controlling the on-off of each pixel in the pixel plate according to the detection result of the car radar.

Description

Pixel car light based on electrochromic material

Technical Field

The invention belongs to the field of electroluminescence control, and particularly relates to a pixilated car lamp based on an electrochromic material.

Background

At present, traffic accidents have become a public nuisance in society. The night driving distance accounts for about 20% of the total driving distance, while the accident mortality accounts for 50%. When the automobile is driven at night, the visual acuity problem cannot be improved when the far and near lamps of the automobile are improperly used, but the dazzling strong light can cause 'instant blindness' of a driver, and traffic accidents are more easily caused. When the motor vehicle meets other motor vehicles, non-motor vehicles and pedestrians, the intention of a driver can be transmitted only by turning lights, alternately changing high and low beams, sounding a horn and the like, and the meeting without an effective information communication mode is easy to delay driving time and even cause traffic accidents.

Considering that a novice driver is likely to have a situation of high and low beam light staggering on the road, chinese patent 110281838A proposes an automatic conversion method for an automotive headlamp based on a two-dimensional laser radar, which detects a forward object by using the automotive radar, converts the forward object into an image according to data scanned by the radar, identifies how many meters ahead of the vehicle exist through the image, and controls the automotive lamp to switch the high and low beam light according to the image result. So, survey near automobile body situation through the radar, directly carry out far and near light and switch, and no matter be far-reaching headlamp or landscape lamp, the car light is the front indiscriminate irradiation of acquiescence after the start, and the subtended vehicle still can be caused blinding in the twinkling of an eye by dazzling's light.

Therefore, it is necessary to provide a controllable intelligent vehicle lamp with various lights, and the intelligent vehicle lamp can irradiate lights in different areas according to actual conditions; therefore, the effect of light irradiation at the position planned according to the radar detection result is very likely to be realized after the radar detection is combined, so that the dipped headlight and the high beam work, and the light avoids the target vehicle.

Aiming at how to realize that the intelligent vehicle lamp irradiates different areas according to the instruction; the design of intelligent car lamps in the existing market is usually realized by using a multi-module LED lamp scheme, a DLP scheme and a MEMS (micro electro mechanical System) electric heating baffle scheme. The multi-module LED lamp scheme generally adopts an array formed by LED lamps, changes the electric quantity condition of LED lamp beads according to instructions, and realizes different lighting effects, for example, in Chinese patent CN 107071969B, the multi-module LED lamp scheme is trapped in the volume of a car lamp, the number of modules cannot be large all the time, the cost is high, and the popularization is difficult. The DLP scheme is similar to the use scheme of a projector, and has the characteristics of high cost and the like. The MEMS electric heating baffle plate scheme has the defects of poor dynamic closing stability of the baffle plate and the like.

It is conceivable for this purpose to make the pixel plate, which is mounted between the light source and the glass housing, of an electrochromic material. The electrochromic material is a material which can reversibly change the transmittance, the refractive index and the absorption rate of the material per se to light under the action of external electric field circulation (forward voltage, no voltage application and reverse voltage). In macroscopic expression, optical characteristics such as color, haze and the like of the electrochromic material can be reversibly changed in the process of changing the external voltage. Based on the characteristics, the electrochromic material has been widely applied in the field of dimming, such as building windows, airplanes, automobile windows and the like. The electrochromic glass which is relatively explosive in the day ahead is made of the electrochromic material, and the light source of the car lamp is adjusted by utilizing the electrochromic glass in the field of vehicles, so that the idea is feasible.

Therefore, the electrochromic material is used for manufacturing the baffle plate of the lamp light of the vehicle lamp, the pixel intelligent control of the vehicle lamp of the vehicle is realized, and the electrochromic material has important safety significance and great economic value in the field of vehicle lighting.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the pixel board all carries out whole dimming among the prior art, and whole printing opacity or light-tight promptly passes the light singleness of pixel board, and the driving information that can transmit is less, can't satisfy the demand that wants to transmit multiple driving information through the cooperation between car light and the pixel board, also can't avoid the condition that the subtend meeting vehicle is "blinding in the twinkling of an eye" by the strong light irradiation of light.

The technical scheme adopted by the invention for solving the technical problems is as follows: the pixelated car light based on the electrochromic material comprises a car light body, an automobile radar and a car light controller, wherein the car light body comprises a light source, a pixel plate and a glass outer cover; wherein the automotive radar is used for detecting light intensity, nearby vehicles, pedestrians and obstacles; the pixel plate comprises a plurality of pixels with electrochromic layers, and the car lamp controller is used for controlling the on-off of each pixel in the pixel plate according to the detection result of the car radar.

Has the advantages that: in the process of switching on and off the pixel in the pixel plate, the transmittance of the electrochromic layer of the pixel is obviously changed, and the intensity of light rays of the light source passing through the pixel and emitting outwards is also changed, so that the switching between strong light irradiation and weak light irradiation is completed. Compared with the prior art that the car light controller can only control the pixel plate integrally, and the light passing through the pixel plate has single change; in this scheme, the car light controller can the individual control pixel in the pixel board, and the car light controller can change the break-make circumstances of every individual pixel, and the printing opacity situation of pixel can be controlled alone to the car light controller promptly, and this light that just makes the pixel board changes and becomes complicated various. The driving state that this scheme can convey is more, has strengthened the vehicle and has gone on, and the information exchange between vehicle and the external world is represented to the pixel light combination of every kind of pixel board.

The on-off of each pixel is independently controlled by the car lamp controller, so that various lamp strips can be flexibly played to meet different driving requirements. The various lamp belts can be in shapes, such as lamp belts in shapes of turning left, turning right and the like, and zebra stripes without light rays are hollowed in the middle; or static, such as a static light strip that is continuously lighted electrically, or a dynamic light strip that is dynamically implemented by repeatedly controlling a single pixel switch.

Therefore, the scheme is favorable for improving the understanding of the outside on the driving intention of the motor vehicle, showing the driving direction of the motor vehicle and maintaining the driving right of the motor vehicle; moreover, when the vehicles meet, the motor vehicle can shoot the lamp strip with hollow parts and no light, so that the phenomenon that the opposite vehicles are directly irradiated to cause blindness in the moment can be avoided while the front illumination is ensured, and the traffic accident is favorably reduced.

Preferably, the pixel plate comprises two transparent substrates, a transparent conductive layer laid on the transparent substrates, and an electrochromic layer laid between the two transparent conductive layers; at least one transparent substrate is provided with a plurality of target areas, transparent conducting layers are laid in the target areas, and gaps are reserved between the transparent conducting layers in the target areas.

Has the advantages that: the gaps are not conductive, so that the transparent conductive layers positioned in different target areas are not conducted with each other, and the transparent conductive layers in each target area are independently conducted or not conducted; the transparent conducting layer of each target area, the transparent substrate part where the target area is located, the electrochromic layer part in contact with the transparent conducting layer of the target area, the transparent conducting layer on the other transparent substrate opposite to the target area and the other transparent substrate part opposite to the target area form an individual pixel, and the pixels are divided through the target area.

Preferably, a transparent dielectric layer is further laid between the electrochromic layer and the transparent conductive layer, and the transparent dielectric layer is insulated.

Has the advantages that: considering that some electrochromic materials have conductivity, the scheme lays an insulating transparent medium layer between the electrochromic layer and the transparent conducting layer, and ensures that the transparent conducting layer and the electrochromic layer are insulated under the condition of not influencing light transmission.

Preferably, the transparent conducting layer is manufactured on the transparent substrate by adopting a sputtering, evaporation, chemical vapor deposition or printing process.

Preferably, opaque light-blocking structures are provided on the at least one transparent substrate.

Has the advantages that: according to the scheme, the pixels of the pixel plate are effectively distinguished through the opaque characteristic of the light blocking structure, and the light is prevented from stimulating the sight of external pedestrians or motor vehicle drivers.

Preferably, a first light blocking structure is laid in the gap of the transparent conducting layer, and the first light blocking structure is made of opaque insulating materials.

Has the advantages that: the insulating characteristic of the first light blocking structure ensures that transparent conducting layers in a target area are not conducted with each other, and the opaque characteristic of the first light blocking structure can effectively distinguish each pixel in the pixel plate; and the light is prevented from stimulating the sight of external pedestrians and motor vehicle drivers through the gap.

Preferably, the transparent conducting layer on the transparent substrate without the gap is provided with a second light blocking structure corresponding to the first light blocking structure of the other transparent substrate, and the second light blocking structure is made of an opaque material.

Has the advantages that: the non-transparent characteristic of the second light blocking structure can effectively distinguish each pixel in the pixel plate; and the second light blocking structure is arranged relative to the first light blocking structure, so that the projection of the first light blocking structure is coincident with the projection of the second light blocking structure, and the full expression that light rays of a light source penetrate through the pixel plate is facilitated. According to the position of the light blocking structure relative to the transparent conductive layer, the first light blocking structure can be divided into a first upper light blocking structure and a first lower light blocking structure, and the second light blocking structure can be divided into a second upper light blocking structure and a second lower light blocking structure. At least one of the light blocking structures is present in the pixel plate, and a plurality of light blocking structures can be present.

Preferably, electrodes are arranged at the non-overlapped areas between the transparent substrates, and the electrodes are connected with the transparent conductive layers of the target areas through electric connecting wires.

Preferably, the car light controller is used for controlling the on-off of each pixel in the pixel plate according to the detection result of the car radar, and the method comprises the following steps:

the vehicle lamp controller comprises a processor, a memory and a controller, wherein the memory stores each piece of situation information and instruction information, and the situation information and the instruction information are associated one by one; the automobile radar is used for collecting situation information, the situation information comprises light intensity and distance information between the automobile radar and nearby vehicles, pedestrians or obstacles, the processor is used for finding out corresponding instruction information from the storage module according to the situation information and sending the instruction information to the controller, and the controller controls the on-off of circuits where the pixels are located according to the instruction information.

Has the advantages that: the method has the advantages that instructions meeting various conditions are preset in the memory, and compared with field editing, useful instructions are found from prestored instructions and are directly applied.

Preferably, the process of manufacturing the pixel plate includes:

s1, selecting an upper transparent substrate and a lower transparent substrate; the light passing rate of the upper transparent substrate and the lower transparent substrate is more than or equal to 30 percent;

s2, dividing target areas on the top of the lower transparent substrate, and growing lower transparent conductive layers in the target areas through various processes, wherein the number of the target areas is M; dividing a target area at the bottom of the upper transparent substrate, and growing an upper transparent conductive layer in the target area through various processes, wherein the number of the target areas is N, M, N is more than or equal to 1, and M + N is more than or equal to 3;

s3, manufacturing electrochromic materials on the lower transparent conducting layer of the lower transparent substrate or the upper transparent conducting layer in the target area of the upper transparent substrate, enabling the transparent conducting layers on the two transparent substrates to be tightly attached to the electrochromic materials, controlling external environment factors such as proper temperature, light, pressure and the like, and curing the electrochromic layers and the upper and lower transparent conducting layers to complete combination of the pixel board material layers;

or the like, or, alternatively,

fixing the lower transparent conducting layer of the lower transparent substrate and the upper transparent conducting layer of the upper transparent substrate according to a certain gap distance, and then manufacturing the electrochromic layer between the upper transparent conducting layer and the lower transparent conducting layer through a pouring process.

Drawings

The invention is further illustrated by the following figures and examples.

FIG. 1 is a schematic structural diagram of an embodiment of a pixelated automotive light based on electrochromic materials according to the present invention;

FIG. 2 is a schematic diagram of the positions of two transparent substrates during the manufacture of a pixel plate according to the present invention;

FIG. 3 is a schematic diagram of a lower transparent conductive layer formed on a lower transparent substrate during the manufacturing process of the pixel plate according to the present invention;

FIG. 4 is a schematic diagram of an upper transparent conductive layer formed on an upper transparent substrate during the fabrication process of the pixel board according to the present invention;

FIG. 5 is a schematic diagram of the connection of the upper transparent conductive layer during the manufacturing process of the pixel plate according to the present invention;

FIG. 6 is a cross-sectional view of the structure of a pixel plate according to the present invention;

fig. 7 is a schematic diagram of the final structure of the pixel plate according to the invention;

FIG. 8 is a schematic diagram of the light transmission of the pixel plate in the present invention when the pixel plate is not powered;

FIG. 9 is a schematic diagram of the light transmission of the pixel plate of the present invention when it is powered;

FIG. 10 is a schematic view of the installation of the light barrier of the present invention;

FIG. 11 is a schematic view of the lights of a vehicle incorporating the present invention after the lamp system is activated when a leading vehicle is detected;

FIG. 12 is a schematic view of the light transmission of the pixel plate of FIG. 11;

FIG. 13 is a schematic view of a left turn signal when a left turn signal is called or depressed alone for a vehicle having an electrochromic based pixelated automotive light of the present invention;

FIG. 14 is a schematic view of the light transmission of the pixel plate of FIG. 13;

FIG. 15 is a schematic view of the light of a vehicle carrying a pixelated light based electrochromic material of the present invention when a pedestrian is detected;

FIG. 16 is a schematic view of the light transmission of the pixel plate of FIG. 15;

FIG. 17 is a schematic view of a lead connection for electrodes on a pixel board;

FIG. 18 is a simplified diagram of a pixel plate structure corresponding to FIG. 17;

fig. 19 is a schematic view of another lead connection for electrodes on a pixel board.

Reference numerals in the drawings of the specification include: the light source 1, the pixel plate 2, the glass cover 3, the lamp controller 4, the automotive radar 5, the outgoing light 6, the incoming light 7, the upper transparent substrate 21, the upper transparent conductive layer 22, the electrochromic layer 23, the lower transparent conductive layer 24, the lower transparent substrate 25, the upper electrode 221, the electrical connection lines 222, the target area 223, the gap 224, the lower electrode 241, the first upper light blocking member 281, the first lower light blocking member 282, the second upper light blocking member 283, the second lower light blocking member 284, the upper void structure 211, the lower void structure 225, the upper lead 26, and the lower lead 27.

Detailed Description

The present invention will now be described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, and merely illustrates the basic structure of the present invention in a schematic manner, and therefore it shows only the constitution related to the present invention.

As shown in fig. 1, the pixelated car light based on electrochromic material comprises a car light body, a car radar 5 and a car light controller 4, wherein the car light body sequentially comprises a light source 1, a pixel plate 2 and a glass outer cover 3 from inside to outside; the automotive radar 5 is used to detect situation information including light intensity, the type of object in front (person, vehicle or other obstacle), and the distance and direction from the host vehicle; the pixel plate 2 comprises a plurality of pixels with electrochromic layers 23, and the car light controller 4 is used for controlling the power on and off of each pixel in the pixel plate 2 according to the detection result of the car radar 5.

The structure of the pixelated car light based on the electrochromic material is specifically expressed as follows:

1. light source

The light source is a device for generating light rays of the vehicle lamp, can be a single or a plurality of halogen lamps, LED lamps and xenon lamps, and can also comprise optical processing devices such as focusing, refracting, reflecting and the like.

2. Pixel plate

The pixel plate is a control plate of an 18x5 electrochromic structure, and the pixel plate is positioned in the propagation direction of the light source. The pixel plate comprises an upper transparent substrate, an upper transparent conductive layer, an electrochromic layer, a lower transparent conductive layer and a lower transparent substrate.

Among them, there are various manufacturing methods of the pixel plate.

(A) The manufacturing method A of the pixel plate comprises the following steps:

s1, as shown in fig. 2, the upper transparent substrate 21 and the lower transparent substrate 25 are selected. The material used for the upper transparent substrate 21 and the lower transparent substrate 25 is a colorless or colored material with a light transmittance of 30% or more, such as various conventional glasses, quartz glass, diamond, sapphire, silica, PC, PDMS, PMMA plexiglass, adhesives, and other transparent polymers. In practice, the upper transparent substrate 21 and the lower transparent substrate 25 may be made of any one of the transparent materials, or may be made of a composite transparent material of any two or more of the transparent materials. The common area of the upper transparent substrate 21 and the lower transparent substrate 25 is 0.01-500 cm²Preferably 0.5-50 cm in area²And (3) removing the solvent. The upper transparent substrate 21 and the lower transparent substrate 25 are generally between 0.01 and 10mm thick, preferably between 0.3 and 2mm thick. The shapes of the upper transparent substrate 21 and the lower transparent substrate 25 are not limited to rectangles, ovals, and other irregular patterns, and the spatial configuration is not limited to a plane or a curved surface. And the upper transparent substrate 21 and the lower transparent substrate 25 are arranged as shown in FIG. 2, and when light is irradiated from the top to the bottom, the upper transparent substrate21 and the lower transparent substrate 25 have an area overlapping region in projection.

S2, as shown in fig. 3, target areas are divided on top of the lower transparent substrate 25, the number of the target areas is one, and the lower transparent conductive layer 24 is grown in the target areas through various processes. .

The above-mentioned process for growing the transparent conductive layer 24 in the target region includes magnetron sputtering, sol-gel, evaporation, electroplating, chemical plating, spraying, printing, and the like. The lower transparent conductive layer 24 is made of one or more colorless or colored conductive materials with a light transmittance of 20% or more, such as thin metal (with a thickness of less than 0.2 um), ITO (indium tin oxide), AZO (aluminum-doped zinc oxide), graphene, carbon nanomaterial, silver nanomaterial, oxide, compound, polymer, or composite material, which may be one of the above materials or a composite transparent conductive material made of the above materials. The resistivity of the laid lower transparent conductive layer 24 is 10^-8Omega.m to 10⁴Omega.m, the thickness is between 0.001 and 500um, and the preferred thickness is between 0.01 and 100 um.

S3, as shown in fig. 4, dividing the bottom of the upper transparent substrate 21 into target areas, where the number of the target areas is greater than one, and growing the upper transparent conductive layer 22 in the target areas through various processes, such as magnetron sputtering, sol-gel method, evaporation, electroplating, chemical plating, spraying, printing, etc. The material used for the upper transparent conductive layer 22 is the same as the material used for the lower transparent conductive layer 24 in S2, and the thickness of the laid upper transparent conductive layer 22 is between 0.001 and 100um, preferably between 0.01 and 10 um.

As shown in fig. 5, the division of the target areas 223 by the bottom of the upper transparent substrate 21 is in a "5 x 5" pattern (i.e., five rows and five columns of target areas 223), with transverse and longitudinal gaps 224 between the plurality of target areas 223, the gaps 224 ensuring electrical isolation between the upper transparent conductive layers 22 in the plurality of target areas 223.

The method for dividing the target area 223 and the gap 224 at the bottom of the upper transparent substrate 21 is to perform the regionalization processing on the upper transparent conductive layer 22 by utilizing the photolithography and mask etching technology, the photolithography and sacrificial layer technology, the photolithography and Lift-off technology, the mask and spray coating technology, the mask and the sol-gel technology, so as to complete a plurality of mutually independent and electrically insulated target areas 223.

S4, wiring is performed at the upper transparent substrate 21 and the lower transparent substrate 25 so that each upper transparent conductive layer 22 is connected to an electrode through a wire, the lower transparent conductive layer 24 is connected to an electrode through a wire, and the electrode connected to the upper transparent conductive layer 22 is different from the electrode connected to the lower transparent conductive layer.

For the wiring of the upper transparent conductive layer 22 at the upper transparent substrate 21 as shown in fig. 5, when the upper transparent conductive layer 22 is fabricated in each target area 223 at the upper transparent substrate 21, circuit laying can be simultaneously completed using a transparent conductive material: twenty-five upper electrodes 221 are sequentially disposed on the outer edge of the target area 223 of the upper transparent substrate 21, and each upper electrode 221 is connected to the upper transparent conductive layer 22 of one target area 223. Between the gaps 224 electrical connection lines 222 run, which electrical connection lines 222 are located between the respective target areas 223 and the electrodes 221 for transmitting a voltage. The upper electrode 221 and the electrical connection line 222 can be made of other conductive materials, such as a metal film of gold, silver, etc. As shown in fig. 9, one end of an external power supply applies a voltage to the upper transparent conductive layer 22 in the target area 223 through the upper electrode 221 via the electrical connection line 222.

For the wiring of the lower transparent conductive layer 24 at the lower transparent substrate 25, a lower electrode is fabricated on the lower transparent conductive layer 24, and the lower electrode is connected to the lower transparent conductive layer through a lead. As shown in fig. 9, the negative electrode of the external power supply applies a voltage to the lower transparent conductive layer 24 in the target region through the lower electrode.

S5, as shown in fig. 6, the electrochromic layer 23 is fabricated at the lower transparent conductive layer 24 of the lower transparent substrate 25 or the upper transparent conductive layer 22 of the upper transparent substrate 21.

The electrochromic layer 23 is composed of an electrochromic material and an electrolyte. The electrochromic material is a material which reversibly changes optical properties such as transmittance, refractive index and absorptivity of the material per se to light in the process of absorbing or releasing charged ions. Such as polymer liquid crystal materials (PDLC, PNLC), inorganic electrochromic materials such as oxides of transition metal elements such as W, Ni, organic electrochromic materials such as viologen, Polyaniline (PANI), lutetium phthalocyanine and the like, and composite electrochromic materials. The electrolyte is a substrate rich in charged ions, can coexist in the electrochromic material, and can form different film layers with the electrochromic material; under the action of the circulating electric field, the charged ions reciprocate in the electrochromic material to change the charged state of the electrochromic material, so that the optical characteristics of the whole electrochromic layer are changed macroscopically. The thickness of the electrochromic layer 23 is between 0.01 and 1000um, preferably between 0.1 and 100 um.

And S6, bonding the upper transparent substrate 21 and the lower transparent substrate 25 together to complete the processing of the pixel plate 2. An overlapping area is secured when the upper transparent substrate 21 and the lower transparent substrate 25 are overlapped, and light can pass through the lower transparent conductive layer 24 of the lower transparent substrate 25 again after passing through the upper transparent conductive layer 22 in the target area of the upper transparent substrate 21. The process of bonding the upper transparent substrate 21 and the lower transparent substrate 25 may employ an adhesive-sandwiched process, a press-fit process, an injection process, or the like.

Fig. 7 is a schematic diagram of the finished structure of a pixel plate 2. In a "5 x 5" pixel module, there are twenty-six electrodes, twenty-five upper electrodes 221 and one lower electrode 241. Twenty-five upper electrodes 221 respectively correspond to the upper transparent conductive layers 22 on the target area 223 at the upper transparent substrate 21 one by one, and the external voltage V forms a circuit with the upper transparent conductive layers 22 and the lower transparent conductive layers 24 through the single upper electrode 221 and one lower electrode 241. And a structure similar to a parallel plate capacitor is formed between the upper transparent conductive layer 22, the electrochromic layer 23 and the lower transparent conductive layer 24. The electric field profile generated at the lower transparent conductive layer 24 and the upper transparent conductive layer 22 of the target area 223 may reversibly change the optical transparency of the electrochromic layer 23 according to the electric field profile of the parallel plate capacitor.

Thus, twenty-five circuits can be constructed in fig. 7, the external voltage V being controlled by the lamp controller 3, the lamp controller 3 controlling the optical transparency of the electrochromic layer 23 at the plurality of target areas 223 by switching the external voltage V on and off without interfering with each other. And because the pixel plate 2 employs a transparent substrate and a transparent conductive layer, the optical transparency of the pixel plate 2 is determined primarily by the electrochromic layer 23. I.e., the plurality of target areas 223 constitute a plurality of pixels, the vehicle light controller 3 can independently and reversibly control the change of optical transparency at the target areas 223, thereby realizing the control of the pixelated intelligent vehicle light.

The principle of the influence of the voltage applied to the two ends of the pixel plate on the transmittance of the pixel plate is expressed as follows:

(1) as shown in fig. 8, when no external voltage is applied across the pixel plate 2, no electric field distribution is formed among the electrochromic layer 23, the upper transparent substrate 21, and the lower transparent substrate 25, and the transmittance of the electrochromic layer 23 is poor. Light at the electrochromic layer 23 is reflected and refracted, a large amount of light is blocked by the electrochromic layer 23, and dense light passes through the electrochromic layer 23 and becomes sparse; the concrete expression is as follows: the incident light 7 generated by the light source 1 passes through the upper transparent substrate and the upper transparent conductive layer 22 without being affected, the light is refracted and reflected at the electrochromic layer 23, a large amount of light is blocked from being transmitted at the electrochromic layer 23, and the emergent light 6 passing through the electrochromic layer 23 is few; that is, the incident light 7 generated by the light source 1 passes through the pixel plate 2 and the glass cover 3, leaving a few emergent light 6, and the light generated by the light source 1 is transmitted through only a very small amount when the pixel plate 2 is not powered.

(2) As shown in fig. 9, when an external voltage is applied across the pixel plate 2, an electric field distribution is formed among the electrochromic layer 23, the upper transparent substrate, and the lower transparent substrate, and the transmittance of the electrochromic layer 23 is high. Light rays at the electrochromic layer 23 do not undergo significant reflection and refraction, a large amount of light rays are not blocked by the electrochromic layer 23, and dense light rays do not become sparse after passing through the electrochromic layer 23; the concrete expression is as follows: the incident light 7 generated by the light source 1 passes through the upper transparent lining plate and the upper transparent conducting layer 22 without being affected, the light cannot be obviously refracted and reflected in the electrochromic layer 23, the light smoothly passes through the electrochromic layer 23 without being affected, and the density of the emergent light 6 passing through the electrochromic layer 23, the lower transparent conducting layer 24 and the lower transparent substrate 25 is not greatly different from that of the incident light 7; that is, the incident light 7 generated by the light source 1 passes through the pixel plate 2 and the glass cover 3 without much loss, that is, when the pixel plate 2 is powered on, the light generated by the light source 1 can be transmitted out, and the intensity and density of the emergent light 6 are substantially consistent with those of the incident light 7.

In summary, with the pixel plate 2 formed by the above scheme, a user can change the light transmission condition of the pixel plate 2 only by changing the power-on condition of the pixel plate 2; furthermore, two electrode plates of a capacitor-like device are arranged between the upper transparent conductive layer 22 in the target area 223 on the upper transparent lining plate and the lower transparent conductive layer 24 on the lower transparent lining plate, and the light transmission condition of a single pixel in the pixel plate 2 is changed by changing the power-on condition between the upper electrode 221 connected with the upper transparent conductive layer 22 on the pixel plate 2 and the lower electrode connected with the lower transparent conductive layer 24, so that the light transmission condition of the pixel plate 2 corresponding to the target area 223 can be further judged by judging whether the upper electrode 221 connected with the target area 223 on the upper transparent lining plate is powered on or not.

(B) Method for manufacturing pixel plate B

The difference between the pixel plate manufacturing method a and the pixel plate manufacturing method B is that: the new addition is made on the basis of S3, as shown in fig. 10, a light blocking structure is added on the pixel plate, and at least one light blocking structure exists in the pixel plate, and a plurality of light blocking structures can coexist. The setting of the structure that is in the light specifically does:

(B-1) providing an opaque and insulating first light blocking structure at the gap. A first light blocking structure is disposed at the gap 224 between the target regions 223, and the first light blocking structure may be divided into a first upper light blocking structure 281 and a first lower light blocking structure 282. The first upper light blocking structure 281 is located between the upper transparent substrate 21 and the upper transparent conductive layer 22, the first lower light blocking structure 282 is located between the upper transparent conductive layer 22 and the electrochromic layer 23, and both the first upper light blocking structure 281 and the first lower light blocking structure 282 may cover the gap 224; the first light blocking structure is made of opaque insulating materials. The process of providing the light blocking structure in the gap between the upper transparent conductive layers 22 of the target region is a process of evaporation, sputtering, chemical vapor deposition, sol-gel, or the like. The opaque insulating material is silicon carbide, silicon nitride, polysilicon, or the like, and the thicknesses of the upper light-blocking member 281 and the lower light-blocking member 282 are not limited, and are usually set between 0.001 to 10um, preferably 0.01 to 0.5 um.

(B-2) disposing an opaque second light blocking structure at the non-gap. A second light blocking structure is disposed on the lower transparent substrate corresponding to the gap 224, and the second light blocking structure may be divided into a second upper light blocking structure 283 and a second lower light blocking structure 284. The second upper light-blocking structure 283 is located between the lower transparent conductive layer 24 and the electrochromic layer 23, the second lower light-blocking structure 284 is located between the lower transparent substrate 25 and the lower transparent conductive layer 24, and both the second upper light-blocking member 283 and the second lower light-blocking member 284 can block light passing through the gap 224. The second light blocking structure is made of opaque material, such as various metals, such as gold, platinum, tungsten, silver, titanium, chromium, aluminum, etc., and may also be silicon, silicon nitride, silicon carbide, etc., and the thicknesses of the second upper light blocking member 283 and the second lower light blocking member 284 are not limited, and are generally set between 0.001 um and 10um, and preferably 0.01 um and 0.5 um.

And (B-3) simultaneously arranging the first light blocking structure of (B-1) and the second light blocking structure of (B-2). The second light blocking structure is preferably disposed at the gap 224 corresponding to the upper transparent conductive layer 21. Thus, the gaps 224 between the upper transparent conductive layers 22 in the target area 223 are more clearly not conductive and light-proof through the first light-blocking structure, and the gaps between the lower transparent conductive layers 24 corresponding to the target area 223 are more clearly light-proof through the second light-blocking structure; by utilizing the first light blocking structure and the second light blocking structure, the edge area between the upper transparent conductive layer 22, the electrochromic layer 23 and the corresponding lower transparent conductive layer 24 part in the target area 223 of the pixel on the pixel plate 2 is displayed more clearly, the edge of the image projected and displayed after the light source 1 penetrates through the pixel plate 2 is clear and clear, and the contrast is improved; and because there is not the parallel plate capacitor structure in the interval 224 area, do not receive the direct control of external voltage, carry out the structural design that blocks light to interval 224, has avoided the light to pass through interval 224 and carry out the irradiation to the external world.

(B-4) providing an opaque light blocking structure at least one of the upper transparent substrate and the lower transparent substrate. The light blocking structure is designed at the upper transparent substrate 21 and/or the lower transparent substrate 25, and the light blocking structure can be directly manufactured on the upper transparent substrate and the lower transparent substrate, and can also achieve the purpose of blocking light rays emitted from the gap 224 by pasting, smearing and printing opaque substances on the upper transparent substrate and the lower transparent substrate.

(C) The manufacturing method C of the pixel plate comprises the following steps:

the difference between the pixel plate manufacturing method a and the pixel plate manufacturing method C is that: the lower transparent conductive layer is disposed in correspondence with the upper transparent conductive layer, that is, the step of S2 is replaced with: a target area 223 is divided on top of the lower transparent substrate 25, and the lower transparent conductive layer 24 is grown in the target area 223 through various processes. As shown in fig. 3, the number of target areas 223 is twenty-five.

(D) The manufacturing method D of the pixel plate comprises the following steps:

based on the pixel plate manufacturing method a, in the original S5 and S6, the electrochromic layer 23 is laid on the upper transparent conductive layer 22 of the upper transparent substrate 21 or the lower transparent conductive layer 24 of the lower transparent substrate 25, and then the upper transparent substrate 21 and the lower transparent substrate 25 are combined, which is replaced with the pixel plate manufacturing method D, in S5, the upper transparent substrate 21 and the lower transparent substrate 25 are combined, and an electrochromic layer material is poured between the upper transparent conductive layer 22 and the lower transparent conductive layer 24 to form the electrochromic layer 23.

(E) The manufacturing method E of the pixel plate comprises the following steps:

on the basis of manufacturing A of the pixel plate, the electrochromic layer in the original S5 is made of a non-conductive electrochromic layer material, and is replaced by: as shown in fig. 6, an insulating lower transparent medium layer is laid on the lower transparent conductive layer 24 of the lower transparent substrate 25, an insulating upper transparent medium layer is also laid on the upper transparent conductive layer 22 in the target region 223 of the upper transparent substrate 21, and an electrochromic material is laid on the upper transparent medium layer or the lower transparent medium layer to produce an electrochromic layer 23; the electrochromic layer material here may be either conductive or insulating.

(F) The manufacturing method F of the pixel plate comprises the following steps:

on the basis of manufacturing A of the pixel plate, the substrate structure and the laying mode of the electrodes are improved. In comparison with S3 and S4 of the pixel plate manufacturing method a, twenty-five target regions are divided on the upper transparent substrate 21, the target regions 223 are distributed in an array of 5 × 5, and each target region 223 is provided with the upper transparent conductive layer 22; a target area is defined on the lower transparent substrate and a lower transparent conductive layer 24 is disposed within the target area. Twenty-five upper electrodes 221 are all connected with the upper transparent conductive layer 22 in the target area 223, each upper electrode 221 is connected with only one target area 223, and only one lower electrode 241 is connected with the lower transparent conductive layer 24 in S4; the specific points of the scheme that the electrodes are arranged at the upper transparent conducting layer 22 of the upper transparent substrate 21 and the lower transparent conducting layer 24 of the lower transparent substrate 25 are as follows:

(F-1) before the upper and lower transparent

conductive layers

22 and 24 are formed on the upper and lower

transparent substrates

21 and 25, an upper void structure 211 may be formed on the upper transparent substrate 21 and a lower void structure 225 may be formed on the lower transparent substrate 25 by using etching, mold injection, grinding, cutting, and the like, as shown in FIG. 17. And then through the upper void structure 211 and the lower void structure 225 using wire bonds, soldering, or the like. The upper lead 26 and the lower lead 27 are both provided with two sections, twenty-five upper electrodes 221 are connected with one section of the upper lead 26, the other end of the section of the upper lead is connected with the transparent conducting layer 22, and the upper electrodes 221 are connected with the vehicle lamp controller 3 for providing external voltage V through the other section of the upper lead 26; one lower electrode 241 is connected to a lower lead 27, the other end of the lower lead 27 is connected to the lower transparent conductive layer 24, and the lower electrode 241 is connected to the lamp controller 3 for supplying the external voltage V through the other lower lead 27.

Void structure 211 and void structure 225 are located on different transparent substrates. The number of void structures on different transparent substrates is 1 to 10000, preferably 2 to 200.

(F-2) No void structure is formed on the transparent substrate 21 and the transparent substrate 25. As shown in fig. 19, before the electrochromic layer is formed, one ends of the upper and lower leads 26 and 27 are connected to and electrically connected to the upper and

lower electrodes

221 and 241, respectively. One ends of the upper and lower leads 26 and 27 are located in the overlapping region of the transparent substrate 21 and the transparent substrate 25, and are connected to the upper and

lower electrodes

221 and 241; the other ends of the upper lead 26 and the lower lead 27 are connected to an external voltage V.

For this purpose, the present embodiment further provides a control system for a pixelated vehicle lamp based on an electrochromic material, including a power supply and the pixelated vehicle lamp based on an electrochromic material, where the pixelated vehicle lamp based on an electrochromic material includes a vehicle lamp body, a vehicle radar 5 and a vehicle lamp controller 4, and the vehicle lamp body includes a light source 1, a pixel plate 2 and a glass housing 3. The power supply is connected with the lamp controller 4, the lamp controller 4 is connected with the electrode 221 of the pixel plate 2, and the lamp controller 4 controls the electrification or nonexistence of each pixel (the upper transparent conductive layer 22 of the target area 223 of the upper transparent substrate 21-the electrochromic layer 23-the lower transparent conductive layer 24 corresponding to the target area 223 in the lower transparent substrate 25) on the pixel plate 2, so as to change the light transmission performance of the pixel.

3. Automobile radar

In practice, the car radar 5 is a command module for monitoring the lamps of the car and sensing the light change. Automobile radar 5 can carry out the perception to surrounding environment, like distance, the direction of preceding vehicle and pedestrian, gives car light controller 4 with the positional information transmission of vehicle, pedestrian, and car light controller 4 can be according to the information of automobile radar 5 transmission, the switching of the pixel on the control pixel board 2 to reached the car light and shone the diversified condition of condition.

The method comprises the following specific steps: the automobile radar 5 comprises a photosensitive induction module and a radar imaging module; the main body of the photosensitive sensing module is a photosensitive sensor which is used for sensing light intensity information and is arranged at a proper position of the automobile avoiding mirror surface and the automobile lamp; the radar imaging module comprises a signal transmitter, a signal receiver and a radar imaging module, wherein the signal transmitter transmits signals to the periphery, and the radar imaging module performs imaging according to the strength of the reflected signals received by the signal receiver so as to judge the type of the front object (people, vehicles or other obstacles) and the distance and direction from the vehicle. The situation information sent out by the automotive radar 5 therefore includes the object type, the object distance and the object orientation; if a person is found to be located 50m ahead, the situation information at this time is "person, 50m, 0 °", and when the direction of the object is determined, the direction of the vehicle is taken as the positive direction axis, and a stereo coordinate system or a spherical coordinate system is established, where the angle between the direction of the person and the positive direction axis on the horizontal plane is simply determined.

4. Vehicle lamp processor

The vehicle lamp controller 4 comprises a processor, a memory and a controller, wherein the memory stores each piece of situation information and instruction information, and the situation information and the instruction information are associated one by one; the automobile radar 5 is used for collecting situation information, the situation information comprises light intensity and distance information between the automobile radar and pedestrians or obstacles nearby, the processor is used for finding out corresponding instruction information from the storage module according to the situation information and sending the instruction information to the controller, and the controller controls the on-off of a circuit where each pixel is located according to the instruction information.

The specific examples are:

1) as shown in fig. 10, the car radar 5 of the car a detects that there is a car B traveling in the reverse direction at 50m in front of the car a and a car C traveling in the same direction at 3m on the left side, and on the horizontal plane, with the front of the car a as the coordinate axis, the situation information sent out by the car radar 5 is "car, 50m, 0 °" and "car, 3m, 270 °". The lamp controller 4 of the vehicle A turns off the high beam and the pixel corresponding to the area, the light transmission state of the pixel plate 2 is shown in figure 11, and the area is light-proof. Therefore, the vehicle A provided by the invention has the advantages that the high beam is turned on, the region III is turned on, and the vehicle A is favorable for turning on the high beam to search and illuminate the road condition in front; and the high beam is closed in time according to the road conditions, so that the area is avoided, and the interference of the high beam on the vehicle B and the vehicle C is avoided.

2) As shown in fig. 12, when the motor vehicle a turns left and drives, the left turn lamp is called or pressed alone, and a left turn signal is sent out at the same time, the vehicle lamp controller 4 searches out corresponding instruction information from the memory, the controller controls the conduction between circuits where each pixel is located on the pixel plate 2, the pixel plate 2 is controlled to switch the pixels according to the mode of fig. 13, a left turn light strip is arranged on the ground, the driving intention of the motor vehicle a is more obviously transferred to the motor vehicle B, and the motor vehicle B is further reminded to reasonably drive, so that the purpose of reducing traffic accidents is achieved.

3) As shown in fig. 14, when the automobile radar 5 detects that a pedestrian is met at a position 45 ° and 10m in front of the right of the automobile C or the non-automobile D is met, the condition information sent out by the automobile radar 5 is "pedestrian/non-automobile, 10m and 45 °", and the lamp controller 4 of the excited automobile C judges whether the distance from the pedestrian/non-automobile D to the automobile is less than the preset distance (the preset distance is set to be 15m) according to the condition information sent by the automobile radar 5; if the distance from the pedestrian or the non-motor vehicle D to the vehicle is smaller than the preset distance, the vehicle lamp controller 4 controls the pixel plate 2 to switch on and off the pixels according to the mode shown in fig. 15, and a zebra stripe lamp strip is printed in front of the pedestrian or the non-motor vehicle D by using light. Once the distance between the pedestrian/non-motor vehicle and the current vehicle is smaller than the preset distance, a zebra crossing lamp strip is printed, and the motor vehicle C conveys the driving intention of stopping and driving to the pedestrian and the non-motor vehicle D through the lamp strip, so that the pedestrian is informed of paying attention to the road and the driver is informed of driving the pedestrian at a slow speed. Therefore, the efficiency of communication between the motor vehicle C and the outside is improved, and the risk of traffic accidents is reduced.

Therefore, according to the driving condition of the motor vehicle, a user can flexibly play lamp belts meeting different driving requirements, such as 'left turn', 'right turn', 'zebra crossing', 'stop line', 'vehicle driving direction', 'single and double solid lines', and the like, by combining the advantage that the single pixel can be independently controlled, so as to display corresponding information to nearby vehicles or people. According to the technical characteristics of the invention, the lamp strip can be a static lamp strip, and the effect of a dynamic lamp strip can also be realized by repeatedly controlling a single pixel switch. The method is favorable for improving the understanding of the driving intention of the motor vehicle from the outside, showing the driving direction of the motor vehicle, maintaining the driving right of the motor vehicle and reducing the occurrence of traffic accidents.

In light of the foregoing description of preferred embodiments in accordance with the invention, it is to be understood that numerous changes and modifications may be made by those skilled in the art without departing from the scope of the invention. The technical scope of the present invention is not limited to the contents of the specification, and must be determined according to the scope of the claims.

Claims

1. The pixelated car light based on the electrochromic material comprises a car light body, an automobile radar and a car light controller, wherein the car light body comprises a light source, a pixel plate and a glass outer cover; the method is characterized in that:

the automobile radar is used for detecting light intensity, nearby vehicles, pedestrians and obstacles; the pixel plate comprises a plurality of pixels with electrochromic layers, and the car lamp controller is used for controlling the on-off of each pixel in the pixel plate according to the detection result of the car radar.

2. The electrochromic material based pixelated automotive light of claim 1, characterized in that: the pixel plate comprises two transparent substrates, a transparent conducting layer and an electrochromic layer, wherein the transparent conducting layer is laid on the transparent substrates, and the electrochromic layer is laid between the two transparent conducting layers; at least one transparent substrate is provided with a plurality of target areas, transparent conducting layers are paved on the target areas, and gaps are reserved among the target areas.

3. The electrochromic material based pixelated automotive light of claim 2, characterized in that: and a transparent dielectric layer is laid between the electrochromic layer and the transparent conducting layer.

4. The electrochromic material based pixelated automotive light of claim 2, characterized in that: a light-blocking structure is disposed on at least one transparent substrate.

5. The electrochromic material based pixelated automotive light of claim 2, characterized in that: a first light blocking structure is laid in the gap; the first light blocking structure is made of opaque insulating materials.

6. The pixelated automotive light based on electrochromic material of claim 5, characterized in that a second light blocking structure is arranged on the transparent substrate without gap corresponding to the first light blocking structure of the other transparent substrate; the second light blocking structure is made of opaque conductive materials.

7. The electrochromic material based pixelated automotive light of claim 2, characterized in that: electrodes are arranged on the transparent substrate and are connected with the transparent conductive layers of the target areas through electric connecting wires.

8. The electrochromic material based pixelated automotive light of claim 1, characterized in that: the car light controller is used for controlling the on-off of each pixel in the pixel plate according to the detection result of the car radar, and comprises the following steps:

9. The electrochromic material based pixelated automotive light of claim 1, characterized in that: the manufacturing process of the pixel plate comprises the following steps:

s1, selecting an upper transparent substrate and a lower transparent substrate;

s2, dividing target areas on the top of the lower transparent substrate, and growing lower transparent conductive layers in the target areas through various processes, wherein the number of the target areas is M; dividing target areas at the bottom of the upper transparent substrate, and growing an upper transparent conducting layer in the target areas through various processes, wherein the number of the target areas is N. M, N are all more than or equal to 1, and M + N is more than or equal to 3;

s3, manufacturing electrochromic materials on the lower transparent conducting layer of the lower transparent substrate or the upper transparent conducting layer in the target area of the upper transparent substrate, enabling the transparent conducting layers on the two transparent substrates to be tightly attached to the electrochromic layers, controlling external environment factors such as proper temperature, light, pressure and the like, and curing the electrochromic layers and the upper and lower transparent conducting layers to complete combination of the pixel board material layers;

or the like, or, alternatively,