CN214504942U - Double-face screen advertisement display device for being mounted on external roof of automobile - Google Patents

Abstract

The utility model relates to a two-sided screen advertisement display device for installing at outside roof of car, including display device with be used for fixing the base on the outside box of roof with display device, display device includes first display element and the second display element that sets up dorsad, first display element is fixed on the base through first connecting plate, the second display element passes through the second connecting plate to be fixed on the base, and first connecting plate inboard all is equipped with the recess that is used for installing logic board and COF sideboard with second connecting plate inboard. With the arrangement, the problem that the height or thickness of the screen is increased due to the fact that the logic board and the COF side board are arranged below or behind the screen in the traditional scheme is solved; the second, install logic board and COF sideboard in the recess, the purpose lets first display element realize more closely back to back laminating with the second display element that backs to reduce the whole thickness of two-sided display screen, let the whole outward appearance of two-sided display screen seem more slender.

Description

Double-face screen advertisement display device for being mounted on external roof of automobile

Technical Field

The utility model relates to a two-sided screen advertisement shows technical field, and more specifically says, relates to a two-sided screen advertisement display device for installing at the outside roof of car.

Background

In recent years, most outdoor advertisements in the form of street sign advertisements, light pole advertisements, overpass advertisements, and the like in cities have been removed with increasing urban governance. However, with the continuous maturity of network and media technology and the continuous slow down of the on-line traffic increase, a part of media people with keen insight have started to change the battlefield, and the traditional operation mode, which uses guideboards, lamp posts, overpasses and the like as main advertisement carriers, is changed into the digital media operation mode, which uses automobiles as main advertisement carriers, so that the reduced outdoor advertisement market scale forms a reverse bounce and presents a scene of thriving.

As a high-quality offline flow entrance, vehicle media advertisements have LED more and more enterprises to begin to explore, and some vehicle media operation enterprises in the forms of vehicle window projection advertisements, vehicle window LED subtitle advertisements, vehicle window LED transparent screen advertisements, in-vehicle seat small screen advertisements and the like also appear in the market. However, from the perspective of the advertiser, the above-mentioned "vehicle advertisement" has obvious defects and shortcomings in both the actual effect and the eyeball focusing power; for example: the vehicle window projection advertisement has the defects of unclear watching in daytime and soundless image in night watching; the LED caption advertisement on the vehicle window has the defects of insufficient advertisement tension, insufficient eyeball focusing force and the like; the vehicle window LED transparent screen advertisement has the defects of rough image quality, only long-distance viewing, incapability of near viewing and the like; the small-screen advertisement of the seat in the vehicle has the defects of too narrow crowd, high-frequency no-load of a rear seat, too low input and output and the like. In addition, besides the small-screen advertisement of the seat in the vehicle, the other three vehicle-mounted advertisement schemes have a common fatal defect according to sixty-two regulations of the implementation of the road traffic safety law of the people's republic of China: objects which obstruct the view of the driver must not be hung and placed in the front and rear windows of the cab of the motor vehicle. The three vehicle-mounted advertisements can affect the sight of the driver more or less, and are not beneficial to driving safety.

Based on the above problem, the utility model provides an install two-sided screen advertisement display device at car top, fundamentally has solved the defect and not enough that exist among the above-mentioned on-vehicle advertisement technique to solved traditional outdoor advertising screen in step because of the consumption too high, the volume is too big, the quality is overweight and can not combine with the car defect. It should be noted that: the reason that the traditional outdoor advertising screen can still display clear images under outdoor high-intensity light irradiation is that the high-power backlight is added on the premise of sacrificing power consumption. Therefore, the power consumption per square of the outdoor advertising screen in the prior art is basically between 600-.

In addition, according to the fourth fifty regulation of the regulations on road traffic safety laws of the people's republic of China: the passenger carrying automobile can not carry cargo except a luggage rack outside the automobile body and a built-in luggage box; the height of the luggage rack of the passenger carrying automobile from the top of the automobile is not more than 0.5 m, and the height from the ground is not more than 4 m. Therefore, the height of the advertisement display device arranged on the roof in the scheme becomes an important technical problem to be solved emphatically by the utility model.

SUMMERY OF THE UTILITY MODEL

The utility model provides a double-sided screen advertisement display device for being installed on the external roof of a car, because the equipment is installed on the roof, the sight of a driver can not be influenced, and the passenger carrying car which completely meets the regulation of fifty-fourth rule of the implementation of the road traffic safety laws of the people's republic of China on the equipment height can not carry cargo except a luggage rack and a built-in luggage box outside the car body; the height of the luggage rack of the passenger carrying automobile from the top of the automobile is not more than 0.5 m, and the height from the ground is not more than 4 m.

The utility model discloses a two-sided screen advertisement display device for installing at the outside roof of car adopts following technical scheme:

a double-sided screen advertisement display device for being mounted on the external roof of an automobile comprises a display device and a base for fixing the display device on an external box body of the roof, and is characterized in that the display device comprises a first display unit and a second display unit arranged opposite to the first display unit, the first display unit is fixed in the base through a first connecting plate, the second display unit is fixed in the base through a second connecting plate, grooves for mounting a logic board and a COF side board are formed in the inner sides of the first connecting plate and the second connecting plate, the logic board is used for converting received LVDS image data signals and clock signals into control signals and row and column signals which can be identified by the display device so as to control MOSFET (metal oxide semiconductor field effect transistor) tube control liquid crystal molecules in the display device, and the COF side board is used for converting signals of the logic board into image data signals, and then the horizontal and vertical synchronous signals are converted into control signals required by the work of the grid driving circuit and the source driving circuit.

Preferably, display device's display screen adopts and to let the first light sense LCD screen that the ambient light realized half reflecting and half permeating, first display element with the second display element all includes and to let the ambient light realize half reflecting and half permeating first light sense formula LCD screen, and establishes the first glass cover in the first light sense formula LCD screen outside, just first display element with still be equipped with first light guide plate between the second display element, first light guide plate top is equipped with first light source, the light that first light source sent can pass through first light guide plate gets into first light sense formula LCD screen.

Preferably, display device's display screen can also adopt and to let ambient light realize the second light sense LCD screen of reflection, first display element with second display element all includes and to let ambient light realize the second light sense formula LCD screen of reflection and establishes the second light guide plate and the second glass cover in the second light sense formula LCD screen outside, just the second light guide plate sets up second light sense formula LCD screen with between the second glass cover, the top and the below of second light guide plate all are provided with the second light source, just first display element with second display element connects through connecting aluminum plate.

Preferably, both ends respectively are equipped with a light sensor that can respond to the strong and weak light of environment light about the outside box of roof, just be equipped with the control unit in the waterproof box in the box, the control unit with light sensor communicably connects.

Preferably, the base is designed to be a U-shaped groove structure, and the first connecting plate and the second connecting plate are fixed inside the U-shaped groove.

Preferably, a composite film and a diffusion film are arranged between the first light guide plate and the first light sensation type liquid crystal display screen, and the diffusion film is arranged close to the first light sensation type liquid crystal display screen.

Preferably, diffusion holes for uniformly diffusing light are formed in both sides of the first light guide plate, and the diffusion holes are blind holes.

Preferably, the first light source is an LED light bar.

Preferably, the first glass cover is made of electronic high-light-transmittance toughened glass, and the electronic high-light-transmittance toughened glass is subjected to AG etching, AR coating and AF spraying. The AG etching treatment is used for processing a reflecting mirror surface of the electronic grade high-light-transmission toughened glass into a matte diffuse reflection surface, so that the electronic grade high-light-transmission toughened glass has an anti-dazzle effect, the AR coating treatment is used for increasing the light transmittance of the electronic grade high-light-transmission toughened glass, and the AF spraying treatment is used for improving the oleophobic and hydrophobic properties of the surface of the electronic grade high-light-transmission toughened glass.

Preferably, the box body is further provided with a camera

The utility model has the advantages that: a double-side screen advertisement display device for being installed on the external roof of an automobile comprises a display device and a base for fixing the display device on an external box body of the roof, wherein the display device comprises a first display unit and a second display unit arranged back to the first display unit, the first display unit is fixed in the base through a first connecting plate, the second display unit is fixed in the base through a second connecting plate, grooves for mounting a logic board and a COF side board are arranged on the inner sides of the first connecting board and the second connecting board, the logic board is used for converting received LVDS image data signals and clock signals into control signals and row and column signals which can be identified by the display device, therefore, the MOSFET in the display device is controlled to control liquid crystal molecules, and the COF side plate is used for converting signals of the logic plate into image data signals and converting the image data signals into control signals required by the work of the gate drive circuit and the source drive circuit through line and field synchronous signals. With the arrangement, firstly, the problem that the height or thickness of the screen is increased because the logic board and the COF side board are usually arranged below or behind the screen in the traditional display screen scheme is solved, so that the overall height of the display device, the connecting base and the box body conforms to the fifty-fourth regulation of the traffic safety law enforcement regulations of the people's republic of China on the premise of keeping the size of the display screen to be maximized: the luggage rack of the passenger carrying automobile carries objects, and the height from the top of the automobile is not more than 0.5 m; the second, install logic board and COF sideboard in the recess, the purpose lets first display element realize inseparabler back to back laminating with the second display element that backs to back to reduce the whole thickness of two-sided display screen, let two-sided display screen seem more slim in whole outward appearance.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.

Fig. 1 is a schematic view of an upper structure of a display device according to embodiment 1 of the present invention;

fig. 2 is a schematic view of a lower structure of a display device according to embodiment 1 of the present invention;

fig. 3 is a schematic view of an upper structure of a display device according to embodiment 2 of the present invention;

fig. 4 is a schematic view of a lower structure of a display device according to embodiment 2 of the present invention;

fig. 5 is a schematic diagram illustrating a plate structure of the first light guide plate and the second light guide plate according to an embodiment of the present invention;

fig. 6 is a perspective view of the first light guide plate and the second light guide plate in the embodiment of the present invention;

fig. 7 is a schematic structural diagram of a double-sided advertisement display device mounted on the outer roof of an automobile according to an embodiment of the present invention.

In the figure:

1-a base, 2-a first connecting plate, 3-a second connecting plate, 4-a groove, 5-a first light sensation type liquid crystal screen, 6-a first glass cover, 7-a first light guide plate, 8-a first light source, 9-a connecting aluminum plate, 10-a second light sensation type liquid crystal screen, 11-a composite membrane, 12-a diffusion membrane, 13-a second light guide plate, 14-a second light source, 15-a second glass cover, 16-an upper cover plate, 17-a diffusion hole, 18-a box body, 19-a display device, 20-a light sensor, 21-a camera and 22-a loudspeaker.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Hereinafter, embodiments will be described with reference to the drawings. The embodiments described below do not limit the scope of the invention described in the claims. Further, the entire contents of the configurations shown in the following embodiments are not limited to those necessary as a solution of the invention described in the claims.

Referring to fig. 1 to 7, the present embodiment provides a double-sided advertising display device for mounting on the external roof of a vehicle, comprising a display device 19 and a base 1, wherein the display device 19 is fixed on the base 1, the base 1 is fixed on a box 18 on the external roof of the vehicle, the display device 19 comprises a first display unit and a second display unit arranged opposite to the first display unit, as shown in fig. 2, the first display unit is fixed on the base 1 through a first connecting plate 2, the second display unit is fixed on the base 1 through a second connecting plate 3, and grooves 4 for mounting a logic board and a COF side board are arranged on the inner side of the first connecting plate 2 and the inner side of the second connecting plate 3, the logic board is used for converting received LVDS image data signals and clock signals into control signals and signals recognizable by the display device, thereby controlling MOSFET control liquid crystal molecules in the display device, the COF side board is used for converting signals of the logic board into image data signals, and then converting line and field synchronous signals into control signals required by the work of the gate driving circuit and the source driving circuit, specifically, the first connecting board 2 and the second connecting board 3 are made of aluminum plates, and the aluminum plates are light in weight and excellent in corrosion resistance. Of course, the material of the first connecting plate 2 and the second connecting plate 3 may also be other materials meeting the requirement, and is not particularly limited herein, as the case may be.

In this solution, as shown in fig. 2 and 4, the base 1 is configured as a U-shaped groove structure, and the first connecting plate 2 and the second connecting plate 3 are fixed inside the U-shaped groove. Of course, the base 1 may have other structures according to the requirements, as the case may be.

According to the arrangement, the logic board and the COF side board are arranged in the groove 4, so that the problem that the height or the thickness of the screen is increased due to the fact that the logic board and the COF side board are usually arranged below or behind the screen in the traditional display screen scheme is solved, and therefore on the premise that the size of the display screen is maximized, the total height of the display device, the connecting base and the box body meets the requirements of the passenger carrying automobile specified in the fifty fourth provision of the implementation rule of the road traffic safety laws of the people's republic of China, except for a luggage rack outside the automobile body and a built-in luggage box, the passenger carrying automobile cannot carry cargo; the luggage rack of the passenger carrying automobile carries cargo, the height from the top of the automobile is not more than 0.5 m, and the height from the ground is not more than 4 m; the second, install logic board and COF sideboard in the recess, the purpose lets first display element realize inseparabler back to back laminating with the second display element that backs to back to reduce the whole thickness of two-sided display screen, let two-sided display screen seem more slim in whole outward appearance.

In the specific embodiment of the scheme, the defect that the traditional outdoor advertising screen cannot be combined with an automobile due to overhigh power consumption, overlarge volume and overweight quality is overcome. It should be noted that: the reason that the traditional outdoor advertising screen can still display clear images under outdoor high-intensity light irradiation is that the high-power backlight is added on the premise of sacrificing power consumption. Therefore, the power consumption per square of the outdoor advertising screen in the prior art is basically between 600-.

The utility model provides a light sense formula LCD screen that can realize screen display through natural environment light irradiation, energy-conserving power saving can combine with the car. The light-sensitive liquid crystal panel includes a liquid crystal layer and a reflective layer. The development principle of the light-sensitive liquid crystal display is as follows: ambient light transmits the liquid crystal layer to the reflecting layer through the glass cover, and the reflecting layer reflects light to the liquid crystal layer to realize image display. The light sensation type liquid crystal screen does not need to start a backlight source under normal ambient illumination, and the stronger the light, the brighter and clearer the image, and the better the contrast and color saturation. The consumption of electric energy and the operation cost generated by the electric energy are saved, and the energy conservation and emission reduction are realized to the maximum extent.

However, the technology of displaying images by using natural ambient light reflection also has some disadvantages that in the case of weak ambient light, the weak light is not enough to be reflected to illuminate the images on the screen, so that the display screen cannot display clear images in the case of dark light. Based on this, the display device 19 may have the following embodiments:

example 1: the display screen of the display device adopts a first light-sensitive liquid crystal screen which can realize semi-reflection and semi-permeation of ambient light:

as shown in fig. 1 and 2, the first display unit and the second display unit each include a first light-sensing liquid crystal panel 5 capable of making ambient light realize semi-reflection and semi-permeation and a first glass cover 6 disposed outside the first light-sensing liquid crystal panel 5, a first light guide plate 7 is further disposed between the first display unit and the second display unit, a first light source 8 is disposed above the first light guide plate 7, light emitted by the first light source 8 can enter the first light-sensing liquid crystal panel 5 through the first light guide plate 7, and it should be noted that the light-sensing liquid crystal panel means a screen which displays brightness generated by ambient light intake. Specifically, the first light source 8 may be configured as an LED light bar, and may also be configured as other light sources as the case may be.

Under the sufficient condition of light, for example daytime natural light passes through first glass cover transmission liquid crystal layer to reflector layer, the reflector layer is with light reflection to the liquid crystal layer again and is realized image display, but arrived under weak ambient light or evening not have under the condition of sunlight irradiation, weak light is not enough to be lighted the screen by the reflection, consequently be equipped with first light guide plate 7 between first display element and the second display element, first light guide plate 7 top is equipped with first light source 8 and carries out the light filling to first light sense formula LCD screen 5 from inside to outside, first light sense formula LCD screen 5 can keep normal work through the light filling.

Preferably, a composite film 11 is disposed between the first light guide plate 7 and the first light-sensitive liquid crystal panel 5, and the composite film 11 is used for converting the LED vertical light above the first light guide plate 7 into 0-degree flat light, so as to form a backlight for the first light-sensitive liquid crystal panel 5, and to make up for the defect that the screen at night has no sunlight.

Further, a diffusion film 12 is disposed between the first light guide plate 7 and the first light-sensitive liquid crystal panel 5, specifically, as shown in fig. 1, the composite film 11 is disposed between the first light guide plate 7 and the diffusion film 12, and the diffusion film 12 is used for uniformly diffusing the flat-shot light of the composite film 11 onto the entire first light-sensitive liquid crystal panel 5, so that the screen has uniform brightness.

It should be noted that, as shown in fig. 1, the double-sided advertisement display device for mounting on the external roof of the automobile further includes an upper cover 16, the upper cover 16 is in contact with and fixed to the first glass covers 6 at both sides, the upper cover 16 is in an inverted "convex" structure, and the first light source 8 is disposed at the bottom end of the upper cover 16.

As shown in fig. 7, the left end and the right end of the roof box 18 are respectively provided with a light sensor 20 capable of sensing the intensity of ambient light, a control unit is arranged in a waterproof box in the box 18, the control unit is communicably connected with the light sensors 20, the light sensors 20 sense the intensity of the ambient light, convert light intensity signals and transmit the converted light intensity signals to the control unit, and the control unit controls whether the first light source 8 is turned on or not to supplement light according to the received signals; when the light intensity is enough to ensure that the first light-sensitive liquid crystal display 5 displays clear images, the control unit controls the first light source 8 to be turned off, so that the consumption of electric energy is reduced; when the light intensity is weak and not enough to ensure that the first light-sensitive liquid crystal display 5 displays clear images, the control unit controls the first light source 8 to be opened, and at the moment, the light of the first light source 8 can be guided to the first light-sensitive liquid crystal display 5 through the first light guide plate 7, the composite membrane and the diffusion membrane, so that clear images can be displayed when the light is insufficient, and the duration of advertisement playing is ensured. Therefore, the LED light source has natural energy-saving property, so that the electric energy required by the LED light source when the LED light source is started can be met only by a small mobile power supply, the electric energy of the automobile is not required to be consumed, and the cost of fuel oil power generation is reduced.

Example 2: the display screen of the display device can also adopt a second light sensation type liquid crystal screen capable of reflecting ambient light:

as shown in fig. 3 and 4, the first display unit and the second display unit both include a second light-sensitive liquid crystal display 10 capable of reflecting ambient light, a second light guide plate 13 and a second glass cover 15 disposed outside the second light-sensitive liquid crystal display 10, the second light guide plate 13 is disposed between the second light-sensitive liquid crystal display 10 and the second glass cover 15, and second light sources 14 are disposed above and below the second light guide plate 13, so as to ensure uniform brightness of the entire reflective second light-sensitive liquid crystal display 10, and the first display unit and the second display unit are connected by connecting aluminum plates 9.

In a preferred embodiment, as shown in fig. 5 and 6, diffusion holes 17 for uniformly diffusing light are disposed on both sides of the first light guide plate 7 and on a side of the second light guide plate 1 contacting the second light-sensitive liquid crystal panel, and the diffusion holes 17 are blind holes, and the diffusion holes 17 can diffuse the light source more uniformly.

Specifically, the second light source 14 may be configured as an LED light bar, and may also be configured as other light sources as the case may be.

The left end and the right end of the roof box 18 are respectively provided with a light sensor 20 capable of sensing the intensity of ambient light, a control unit (not shown in the figure) is arranged in a waterproof box in the box 18 and is connected with the light sensors 20 in a communication manner, the light sensors 20 at the left end and the right end of the roof box 18 can independently sense the intensity of the ambient light and transmit respective ambient light intensity signals to the control unit after converting the ambient light intensity signals, and the control unit controls whether the light source at one side and/or two sides of the second light source 14 is/are opened or not to supplement light according to the received signals; when the ambient light intensity is enough to ensure that the double-sided display screen of the second light-sensing liquid crystal screen 10 can display clear images, the control unit controls the second light source 14 to be turned off, so that the consumption of electric energy is reduced; when the ambient light intensity is weaker and is not enough to ensure that the double-sided display screen or the single-sided display screen of the second light-sensitive liquid crystal screen 10 displays clear images, the control unit controls the single-sided and/or two-sided light source of the second light source 14 to be turned on, at the moment, the single-sided and/or two-sided light of the second light source 14 can pass through the second light guide plate 13 and guide the light to the double-sided display screen or the single-sided display screen of the second light-sensitive liquid crystal screen 10, so that clear images can be displayed when the light is insufficient, and the duration of advertisement playing is ensured. Therefore, the LED light source has natural energy-saving property, so that the electric energy required by the LED light source when the LED light source is started can be met only by a small mobile power supply, the electric energy of the automobile is not required to be consumed, and the cost of fuel oil power generation is reduced.

To sum up, in order to prevent the damage of the liquid crystal display and prolong the service life of the display device, the outer side of the liquid crystal display is provided with a glass cover, specifically, the first glass cover 6 and the second glass cover 15 are both set to be electronic high-transparency toughened glass, and the impact resistance of the toughened glass is more than 5 times that of common plate glass, so that the toughened glass is not easy to break.

Specifically, the electronic grade high-light-transmittance toughened glass is processed by AG etching, AR coating and AF spraying processes, and an AG Anti-glare glass (Anti-Glare glass) product is processed by a special chemical process, and is characterized in that the light-reflecting surface of the original glass is changed into a matte diffuse-reflecting surface; the AR glass can increase the light transmission internal rate and reduce the reflectivity, and the AR glass coating mainly increases the transmittance of the glass and reduces the reflectivity of the glass; the AF glass coating can enable the surface of the glass to generate hydrophobicity, has an oleophobic and waterproof effect, has anti-glare and anti-ultraviolet functions, improves the light transmittance of the glass, reduces the reflectivity, improves the picture color, improves the hydrophobic and oleophobic performances of the surface of the glass, and improves the impact resistance and the scratch and abrasion resistance of the glass.

In addition, in order to ensure that the glass cover outside the screen of the display device is fixed stably, an aluminum frame can be arranged on the periphery of the display device.

In summary, as shown in fig. 7, a speaker and a camera are further arranged on a box body of a car roof, and the camera is arranged, so that firstly, the monitoring video of the double-sided screen advertisement display device which is placed outside the car and is used for being installed on the car roof can be uploaded to a server end in real time, and therefore if a smashing or stealing event occurs, the evidence can be obtained; secondly, the system can assist the public security department to call the site records of traffic accidents, criminal crimes and the like; thirdly, the crowd flow records of the advertisement spots are recorded, so that the position-based data analysis service can be better provided for the advertisers.

It should be noted that the terms "first," "second," and the like, as used herein, are not intended to limit the specific order, but merely to distinguish one element or function from another. The terms "upper" and "lower" are used herein when the novel dual-sided display device is in the display state as shown in fig. 1. The terms "left" and "right" used herein refer to the case where the front of the car is the front, the rear of the car is the rear, the left side is the left end, the right side is the right end, and the display directions of the screens in the box 18 are on the left and right sides of the car.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A double-sided screen advertisement display device for being mounted on the external roof of an automobile comprises a display device and a base for fixing the display device on an external box body of the roof, and is characterized in that the display device comprises a first display unit and a second display unit arranged opposite to the first display unit, the first display unit is fixed in the base through a first connecting plate, the second display unit is fixed in the base through a second connecting plate, grooves for mounting a logic board and a COF side board are formed in the inner sides of the first connecting plate and the second connecting plate, the logic board is used for converting received LVDS image data signals and clock signals into control signals and row and column signals which can be identified by the display device so as to control MOSFET (metal oxide semiconductor field effect transistor) tube control liquid crystal molecules in the display device, and the COF side board is used for converting signals of the logic board into image data signals, and then the horizontal and vertical synchronous signals are converted into control signals required by the work of the grid driving circuit and the source driving circuit.

2. The dual-panel advertisement display device as claimed in claim 1, wherein the display panel of the display device is a first light-sensitive lcd panel capable of semi-reflecting and semi-transmitting ambient light, the first display unit and the second display unit each include a first light-sensitive lcd panel capable of semi-reflecting and semi-transmitting ambient light, and a first glass cover disposed outside the first light-sensitive lcd panel, and a first light guide plate is disposed between the first display unit and the second display unit, and a first light source is disposed above the first light guide plate, and light emitted from the first light source can enter the first light-sensitive lcd panel through the first light guide plate.

3. The dual-panel advertisement display device for being mounted on the external roof of an automobile according to claim 1, wherein the display panel of the display device further comprises a second light-sensitive lcd panel capable of reflecting ambient light, the first display unit and the second display unit each comprise a second light-sensitive lcd panel capable of reflecting ambient light, and a second light guide plate and a second glass cover arranged outside the second light-sensitive lcd panel, the second light guide plate is arranged between the second light-sensitive lcd panel and the second glass cover, a second light source is arranged above and below the second light guide plate, and the first display unit and the second display unit are connected by a connecting aluminum plate.

4. The double-sided advertising display device as claimed in claim 1, wherein the outer box body of the vehicle roof has a light sensor for sensing the intensity of ambient light at each of the left and right ends thereof, and a control unit is disposed in a waterproof box inside the box body, the control unit being communicably connected to the light sensor.

5. A dual panel advertising display unit according to claim 1, wherein the base is configured as a U-channel structure, and the first and second connector panels are each secured within the U-channel.

6. The double-sided screen advertising display device for mounting on an exterior roof of an automobile according to claim 2, wherein a composite film and a diffusion film are provided between the first light guide plate and the first light-sensitive liquid crystal screen, and the diffusion film is provided adjacent to the first light-sensitive liquid crystal screen.

7. The double-sided screen advertising display device according to claim 2, wherein the first light guide plate is provided at both sides thereof with diffusion holes for uniformly diffusing light, and the diffusion holes are blind holes.

8. The dual panel advertising display unit for mounting on an exterior roof of a vehicle as claimed in claim 2 wherein the first light source is provided as an LED light bar.

9. The double-sided screen advertising display device for being mounted on the external roof of an automobile according to claim 2, wherein the first glass cover is made of electronic high-light-transmittance toughened glass, the electronic high-light-transmittance toughened glass is subjected to AG etching, AR coating and AF spraying, the AG etching is used for processing a reflecting mirror surface of the electronic high-light-transmittance toughened glass into a matte diffuse reflection surface, so that the electronic high-light-transmittance toughened glass has an anti-glare effect, the AR coating is used for increasing the light transmittance of the electronic high-light-transmittance toughened glass, and the AF spraying is used for improving the oleophobic and hydrophobic performance of the surface of the electronic high-light-transmittance toughened glass.

10. A dual panel advertising display unit for mounting on the exterior roof of a vehicle as claimed in claim 1 wherein a camera is also provided on the housing.

Images