Automobile display system and automobile

Abstract

The embodiment of the present invention provides a car display system and a car. The car display system includes an information transmission device and a display device. The information transmission device is arranged inside the car, receives vehicle data including acceleration and / or speed, generates an information image according to the vehicle data, and sends the information image to the display device; the light-emitting surface of the display device faces the outside of the car body, receives and displays the information image; the display device includes a plurality of LED display chips and a drive circuit arranged on the car body; the drive circuit includes a drive wire and a display drive chip, the drive wire connects the display drive chip and the LED display chip; the display drive chip is connected to the information transmission device. The personalized information image of the vehicle is displayed on both sides of the car body, which enhances interactivity, and the display device is directly arranged on the surface of both sides of the car body without being restricted by the shape of the traditional display screen frame. It can better match the shape of the car body and the curvature of the curve, enhancing aesthetics and personalization.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of display technology, and in particular to an automobile display system and an automobile. Background Art

[0002] During normal driving, a car needs to send out warning signals to the outside world to ensure that other drivers on the road understand the driver's intentions and drive safely.

[0003] At present, for the sake of personalization and diversity of warnings, some cars such as buses will install warning light signs at the back of the car and connect to the main control chip inside the car. By sensing acceleration or speed, the light signs will display "brake", "slow down" or "caution", etc. However, the current light signs use ordinary single-color LED lamp beads as light sources, which have limited display content and need to be made into a screen before being installed on the car, which is not beautiful. Summary of the invention

[0004] A first aspect of an embodiment of the present invention provides an automobile display system to realize displaying personalized information images of an automobile on both sides of the automobile body. The automobile display system of the embodiment of the present invention comprises: an information transmission device and a display device;

[0005] The information transmission device is arranged inside the automobile, receives vehicle data including acceleration and / or speed, generates an information image according to the vehicle data, and sends the information image to a display device;

[0006] The light emitting surface of the display device faces the exterior of the vehicle body and is used to receive and display the information image;

[0007] The display device includes a plurality of LED display chips and a driving circuit arranged on the vehicle body;

[0008] The driving circuit includes a driving wire and a display driving chip, and the driving wire is connected to the display driving chip and the LED display chip;

[0009] The display driving chip is connected to the information transmission device.

[0010] Preferably, the display device is arranged on a vehicle door, and the driving wire comprises a first wire arranged on the vehicle door along a first direction and a second wire arranged on the vehicle door along a second direction;

[0011] The first wire is connected to the first electrode of the LED display chip and the display driver chip;

[0012] The second wire is connected to the second electrode of the LED display chip and is grounded;

[0013] The display driving chip is connected to the information transmission device and the second wire.

[0014] Furthermore, the display device further comprises a packaging layer, wherein the packaging layer covers the surface of the LED display chip and is used to seal and isolate the LED display chip.

[0015] Furthermore, the LED display chip is a Mini-LED display chip or a Micro-LED display chip.

[0016] Furthermore, the encapsulation layer is made by spraying a transparent encapsulation adhesive on the surface of the LED display chip and then baking it;

[0017] The LED display chip includes: a blue LED, a red LED and a green LED;

[0018] Each of the blue LED, red LED and green LED is combined into a pixel unit.

[0019] Preferably, the encapsulation layer is made by spraying transparent encapsulation glue, red fluorescent glue and green fluorescent glue on the surface of the LED display chip and baking them;

[0020] The LED display chip includes a blue LED display chip sprayed with transparent packaging glue, a blue LED display chip sprayed with red fluorescent glue, and a blue LED display chip sprayed with green fluorescent glue;

[0021] Each of the blue LED display chips sprayed with transparent packaging glue, the blue LED display chips sprayed with red fluorescent glue, and the blue LED display chips sprayed with green fluorescent glue are combined into a pixel unit.

[0022] Preferably, the information image includes: a vehicle driving status information image and / or an advertising information image.

[0023] Preferably, the automobile display system further comprises: an acceleration sensor and / or a speed sensor;

[0024] The acceleration sensor is used to obtain the acceleration of the vehicle;

[0025] The speed sensor is used to obtain the speed of the vehicle;

[0026] The vehicle driving status information image and / or the advertising information image includes: one or more of acceleration, deceleration, braking, current speed data, driving safety status, advertising and / or passenger welcome information.

[0027] Preferably, the automobile display system further comprises a steering lever;

[0028] The vehicle data also includes the direction of the lever, and the direction of the lever can be used to determine whether the vehicle is in a left / right turning state;

[0029] The vehicle driving status information also includes left / right turns.

[0030] A second aspect of an embodiment of the present invention provides an automobile, comprising the automobile display system as described in the first aspect of the embodiment of the present invention.

[0031] The technical solution of the embodiment of the present invention realizes that the personalized information image of the vehicle can be automatically displayed on both sides of the vehicle body according to the vehicle data without affecting the normal driving action of the driver, thereby enhancing the interaction between the vehicle and other vehicles. Moreover, the display device is directly arranged on the surface of both sides of the vehicle body without being restricted by the shape of the traditional display screen frame. It can better match the shape of the vehicle body and the curvature of the curve, and enhance the aesthetics and personalization. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a schematic diagram of the structure of the automobile display system provided by the first embodiment of the present invention;

[0033] Figure 2 is a schematic diagram of the structure of the automobile display system provided by the first embodiment of the present invention;

[0034] Figure 3 is a schematic diagram of the structure of the automobile display system provided by the second embodiment of the present invention;

[0035] 4(a)-(c) are schematic diagrams of the structure of a Micro-LED display chip provided in Embodiment 2 of the present invention;

[0036] Figure 5 It is a structural schematic diagram of a car provided in Embodiment 3 of the present invention. DETAILED DESCRIPTION

[0037] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0038] In addition, the terms "first", "second", etc. can be used in this article to describe various directions, actions, steps or elements, but these directions, actions, steps or elements are not limited by these terms. These terms are only used to distinguish a first direction, action, step or element from another direction, action, step or element. For example, without departing from the scope of the present application, the first wire can be referred to as the second wire, and similarly, the second wire can be referred to as the first wire. Both the first wire and the second wire are wires, but they are not the same wire. The terms "first", "second", etc. cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0039] Embodiment 1

[0040] Figure 1 A schematic diagram of the structure of an automobile display system provided in Embodiment 1 of the present invention is shown in FIG. Figure 1 As shown, the luminous flux measurement system according to the embodiment of the present invention includes: an information transmission device 100 and a display device 200 .

[0041] The information transmission device 100 is disposed inside the automobile. The information transmission device 100 receives vehicle data including acceleration and / or speed, generates an information image according to the vehicle data, and sends the information image to the display device 200 .

[0042] The light emitting surface of the display device 200 faces the exterior of the vehicle body, and is used to receive and display the information image.

[0043] Specifically, the display device 200 includes a plurality of LED display chips and a driving circuit arranged on a vehicle body, wherein the driving circuit includes a driving wire and a display driving chip, and the driving wire connects the display driving chip and the LED display chip.

[0044] Furthermore, the display driving chip is connected to the information transmission device 100 .

[0045] Preferably, Figure 2This is a structural schematic diagram of an automobile display system in Embodiment 1 of the present invention. As shown in the figure, the display device in the embodiment of the present invention is arranged on a vehicle door, and the driving wire 210 includes a first wire 211 arranged on the vehicle door along a first direction and a second wire 212 arranged on the vehicle door along a second direction; the first wire 211 is connected to the first electrode of the LED display chip 220 and the display driving chip 230; the second wire is connected to the second electrode of the LED display chip 220 and is grounded; the display driving chip 230 is also connected to the information transmission device 100.

[0046] Preferably, the first conductive wire 211 and the second conductive wire 212 are arranged in orthogonal directions and are insulated and isolated from each other.

[0047] Preferably, the first electrode is a positive electrode of the LED display chip 220 , and the second electrode is a negative electrode of the LED display chip 220 .

[0048] Furthermore, the display driver chip 230 can use an active drive mode or a passive drive mode to drive the LED display chip to display information images. The embodiment of the present invention preferably uses a passive drive mode to drive the LED display chip.

[0049] In the first embodiment of the present invention, specifically, the driving wire 210 is arranged on the PI film (polyimide film) 240. The driving wire 20 can be formed on the PI film 240 by a printing process or a photolithography process. And the LED display chip 220 can be formed on the PI film 240 by a mass transfer process. Among them, the PI film is a flexible material, which can achieve a better fit of the display device 200 to the vehicle body. The PI film is arranged at a set position of the vehicle body (including the door). The display driver chip 230 is placed inside the vehicle body, and each of the second wires 212 is connected by a lead.

[0050] Among them, the printing process can be an inkjet printing process or a screen printing process. Photolithography is a multi-step pattern transfer process. The embodiment of the present invention preferably adopts a photolithography process. First, the required pattern of the driving wire 210 is formed on the mask, and then the pattern of the driving wire 210 is transferred to the surface of the PI film 240. The mass transfer process mainly includes: electrostatic force adsorption method, van der Waals force transfer method, electromagnetic adsorption method, patterned laser ablation method and fluid assembly method. The embodiment of the present invention preferably adopts an electromagnetic force adsorption method. Through the action of electromagnetic force, the massive LED display chip 220 is accurately adsorbed, then transferred to the PI film 240, and accurately released, so as to accurately place the massive LED display chip at the target position and combine with the driving wire 20.

[0051] Preferably, the information image includes: a vehicle driving status information image and / or an advertising information image. Wherein, the vehicle driving status information includes: one or more of acceleration, deceleration, braking, and / or current speed information. For example, the information transmission device 100 can receive acceleration data, and when the acceleration is a positive value, drive the LED display chip to display the word "acceleration"; when the acceleration is a negative value, drive the LED display chip to display the word "deceleration". Or, the information transmission device 100 receives speed data, and when the speed data increases by a certain threshold, such as 3km / h, drives the LED display chip to display the word "acceleration"; when the speed data decreases by a certain threshold, such as 3km / h, drives the LED display chip to display the word "deceleration"; and can also drive the LED display chip to display the current speed information according to real-time speed data. Preferably, the automobile display system also includes a brake sensor, which is located at the brake pedal. When the driver steps on the brake pedal, the brake sensor is triggered to send a "brake" signal to the information transmission device 100, thereby driving the LED display chip to display the word "brake"; when the driver no longer brakes the vehicle, the brake pedal is released, and the connection between the brake sensor and the information transmission device 100 is automatically disconnected.

[0052] The working principle of the automobile display system of an embodiment of the present invention is specifically as follows: vehicle data is received through an information transmission device, and an information image is generated according to the vehicle data, and the information image is sent to a display driver chip of a display device, the display driver chip processes the information image to generate a drive signal, and the drive signal is sent to an LED display chip through a drive wire, thereby driving the LED display chip to display the information image.

[0053] The automobile display system of the embodiment of the present invention realizes that the personalized information image of the vehicle can be automatically displayed on both sides of the vehicle body according to the vehicle data without affecting the normal driving action of the driver, thereby enhancing the interaction between the vehicle and other vehicles. Moreover, the display device is directly arranged on the surface of both sides of the vehicle body without being restricted by the shape of the traditional display screen frame. It can better match the shape of the vehicle body and the curvature of the curve, and enhance the aesthetics and personalization.

[0054] Embodiment 2

[0055] Figure 3 A schematic diagram of the structure of a vehicle display system provided in the second embodiment of the present invention is shown in FIG. Figure 3 As shown, the luminous flux measurement system according to the embodiment of the present invention includes: an information transmission device 300 and a display device 400 .

[0056] The information transmission device 300 is disposed inside the automobile, and receives vehicle data including acceleration and / or speed, generates an information image according to the vehicle data, and sends the information image to the display device 400 .

[0057] The light emitting surface of the display device 400 faces the exterior of the vehicle body, and is used to receive and display the information image.

[0058] Specifically, the display device 400 includes a plurality of LED display chips and a driving circuit arranged on the vehicle body, wherein the driving circuit includes a driving wire and a display driving chip, the driving wire connects the display driving chip and the LED display chip. The display driving chip is connected to the information transmission device 300.

[0059] Furthermore, the information transmission device 300 and the display device 400 are both connected to a vehicle power supply 500 .

[0060] Among them, the display device in the embodiment of the present invention is arranged on the vehicle door, and the driving wire includes a first wire arranged on the vehicle door along a first direction and a second wire arranged on the vehicle door along a second direction; the first wire is connected to the first electrode of the LED display chip and the display driving chip; the second wire is connected to the second electrode of the LED display chip and is grounded; the display driving chip is connected to the information transmission device 300 and the second wire.

[0061] Preferably, the first conductive wire and the second conductive wire are arranged in orthogonal directions and are insulated and isolated from each other.

[0062] Preferably, the first electrode is a positive electrode of an LED display chip, and the second electrode is a negative electrode of the LED display chip.

[0063] Furthermore, the display driver chip can use an active drive mode or a passive drive mode to drive the LED display chip to display information images. The embodiment of the present invention preferably uses a passive drive mode to drive the LED display chip.

[0064] Furthermore, the display device 400 further includes a packaging layer, which covers the surface of the LED display chip and is used to seal and isolate the LED display chip.

[0065] Preferably, the LED display chip in the embodiment of the present invention may be a Micro-LED display chip or a Mini-LED display chip.

[0066] Preferably, taking Micro-LED display chip as an example, Figure 5 The structure diagram of the Micro-LED display chip is shown in FIG. The manufacturing method of the Micro-LED display chip mainly includes:

[0067] Step a, as shown in FIG4(a), a sapphire substrate 401, a GaN (gallium nitride)-based buffer layer 402 and an N-type semiconductor layer 403 are stacked in sequence to form a gallium nitride epitaxial wafer. A multi-quantum well light-emitting layer 404, a P-type semiconductor layer 405 and a current spreading layer 406 are formed in sequence on the gallium nitride epitaxial wafer. The material of the multi-quantum well light-emitting layer 404 is InGaN (indium gallium nitride) and / or GaN; the material of the P-type semiconductor layer 405 is p-type GaN; the material of the current spreading layer 406 includes ITO (indium tin oxide), IZO (indium zinc oxide), etc.

[0068] In step b, as shown in FIG. 4( b ), the structure obtained in step a is etched to expose the N-type semiconductor layer 403 and form a through hole penetrating the current spreading layer 406 , the P-type semiconductor layer 405 and the multi-quantum well light-emitting layer 404 .

[0069] Step c, as shown in FIG4(c), based on the structure obtained in step b, a third electrode 407 is deposited in the through hole, a fourth electrode 408 is deposited on the current spreading layer 406, and an insulating material is filled between the third electrode 407 and the fourth electrode 408 to form an insulating layer 409. The materials of the third electrode 407 and the fourth electrode 408 may be the same or different, including one or more of Ti (titanium), Al (aluminum), Au (gold), Cr (chromium), Pt (platinum), and Ni (nickel). Thus, a Micro-LED display chip is manufactured.

[0070] Preferably, the encapsulation layer is made by spraying transparent encapsulation glue on the surface of the LED display chip and baking it. The LED display chip includes: a blue LED, a red LED and a green LED; each of the blue LED, red LED and green LED is combined into a pixel unit.

[0071] In an alternative embodiment, the encapsulation layer is made by baking transparent encapsulation glue, red fluorescent glue and green fluorescent glue sprayed on the surface of the LED display chip; the LED display chip includes a blue light LED display chip sprayed with transparent encapsulation glue, a blue light LED display chip sprayed with red fluorescent glue and a blue light LED display chip sprayed with green fluorescent glue; each of the blue light LED display chip sprayed with transparent encapsulation glue, the blue light LED display chip sprayed with red fluorescent glue and the blue light LED display chip sprayed with green fluorescent glue is combined into a pixel unit.

[0072] Furthermore, the size of the pixel unit is 5-200 microns; the horizontal distance between every two pixel units is 10 microns-20000 microns; and the vertical distance between every two pixel units is 10 microns-20000 microns.

[0073] Preferably, the information image includes: a vehicle driving status information image and / or an advertising information image.

[0074] Furthermore, the automobile display system further comprises: an acceleration sensor and / or a speed sensor; the acceleration sensor is used to obtain the acceleration of the automobile; the speed sensor is used to obtain the speed of the automobile.

[0075] Wherein, the vehicle driving status information image and / or advertising information image include: one or more of acceleration, deceleration, braking, current speed data, driving safety status, advertising and / or passenger welcome information. For example, the information transmission device 300 can receive acceleration data, and when the acceleration is a positive value, drive the LED display chip to display the word "acceleration"; when the acceleration is a negative value, drive the LED display chip to display the word "deceleration". Or, the information transmission device 300 receives speed data, and when the speed data increases by a certain threshold, such as 3km / h, drives the LED display chip to display the word "acceleration"; when the speed data decreases by a certain threshold, such as 3km / h, drives the LED display chip to display the word "deceleration"; and can also drive the LED display chip to display the current speed data information according to the real-time speed data. Preferably, the automobile display system further includes a brake sensor, which is located at the brake pedal. When the driver steps on the brake pedal, the brake sensor is triggered to send a "brake" signal to the information transmission device 300, thereby driving the LED display chip to display the word "brake"; when the driver no longer brakes the vehicle, the brake pedal is released, and the connection between the brake sensor and the information transmission device 300 is automatically disconnected. When the car is a taxi, the display device 400 can also display a passenger welcome message, such as "Welcome aboard, safe journey", etc. The driving safety status may include "driving", "parking", etc.

[0076] Furthermore, the automobile display system also includes a steering lever; the vehicle data also includes the direction of the lever, and the vehicle can be judged to be in a left / right turn state according to the direction of the lever; the vehicle driving state information also includes left / right turn. For example, a left / right lever sensor can be set on the steering lever, and when the steering lever is turned to trigger the left lever sensor, a left turn signal is sent to the information transmission device 300, thereby driving the LED display chip to display the words "left turn"; when the steering lever is turned to trigger the right lever sensor, a right turn signal is sent to the information transmission device 300, thereby driving the LED display chip to display the words "right turn".

[0077] The automobile display system of the embodiment of the present invention realizes that the personalized information image of the vehicle can be automatically displayed on both sides of the vehicle body according to the vehicle data without affecting the normal driving action of the driver, thereby enhancing the interaction between the vehicle and other vehicles. Moreover, the display device is directly arranged on the surface of both sides of the vehicle body without being restricted by the shape of the traditional display screen frame. It can better match the shape of the vehicle body and the curvature of the curve, and enhance the aesthetics and personalization.

[0078] Embodiment 3

[0079] Figure 5 It is a schematic structural diagram of a car in Embodiment 3 of the present invention, including a car body 1000 and a car display system provided by any embodiment of the present invention.

[0080] The automobile provided in this embodiment can supply power to the automobile display system through a built-in vehicle device while the automobile is driving.

[0081] The automobile display system of the embodiment of the present invention realizes that the personalized information image of the vehicle can be automatically displayed on both sides of the vehicle body according to the vehicle data without affecting the normal driving action of the driver, thereby enhancing the interaction between the vehicle and other vehicles. Moreover, the display device is directly arranged on the surface of both sides of the vehicle body without being restricted by the shape of the traditional display screen frame. It can better match the shape of the vehicle body and the curvature of the curve, and enhance the aesthetics and personalization.

[0082] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. An automobile display system, characterized in that: include: Information transmission device and display device; The information transmission device is arranged inside the automobile, receives vehicle data including acceleration and / or speed, generates an information image according to the vehicle data, and sends the information image to a display device; The light-emitting surface of the display device faces the exterior of the vehicle body, and is used to receive and display the information image. The display device includes a plurality of LED display chips and a driving circuit arranged on the vehicle body; The driving circuit includes a driving wire and a display driving chip, and the driving wire is connected to the display driving chip and the LED display chip; The display driving chip is connected to the information transmission device; The driving wire is arranged on the PI film; The driving wires are formed on the PI film by a printing process or a photolithography process, and the LED display chip is formed on the PI film by a mass transfer process; The display driver chip is placed inside the vehicle body; The information image includes: a vehicle driving status information image and / or an advertising information image; The automobile display system further includes a brake sensor, which is located at the brake pedal. When the driver steps on the brake pedal, the brake sensor is triggered to send a "brake" signal to the information transmission device, thereby driving the LED display chip to display the word "brake"; The PI film is arranged at a set position of the vehicle body; Adopting an electromagnetic force adsorption method, adsorbing the LED display chip through electromagnetic force, transferring it to the PI film, and releasing it; The display device is arranged on the vehicle door, and the driving wire comprises a first wire arranged on the vehicle door along a first direction and a second wire arranged on the vehicle door along a second direction; The first wire is connected to the first electrode of the LED display chip and the display driver chip; The second wire is connected to the second electrode of the LED display chip and is grounded; The display driving chip is connected to the information transmission device and the second wire; The display device further comprises an encapsulation layer, which covers the surface of the LED display chip and is used to seal and isolate the LED display chip; The encapsulation layer is made by spraying a transparent encapsulation adhesive on the surface of the LED display chip and then baking it; The encapsulation layer is made by spraying transparent encapsulation glue, red fluorescent glue and green fluorescent glue on the surface of the LED display chip and baking them; The LED display chip includes a blue LED display chip sprayed with transparent packaging glue, a blue LED display chip sprayed with red fluorescent glue, and a blue LED display chip sprayed with green fluorescent glue; Each of the blue LED display chips sprayed with transparent packaging glue, the blue LED display chips sprayed with red fluorescent glue, and the blue LED display chips sprayed with green fluorescent glue are combined into a pixel unit.

2. The automobile display system according to claim 1, characterized in that: The LED display chip is a Mini-LED display chip or a Micro-LED display chip.

3. The automobile display system according to claim 2, characterized in that: The LED display chip includes: a blue LED, a red LED and a green LED; Each of the blue LED, red LED and green LED is combined into a pixel unit.

4. The automobile display system according to claim 1, characterized in that: The automobile display system further includes: an acceleration sensor and / or a speed sensor; The acceleration sensor is used to obtain the acceleration of the vehicle; The speed sensor is used to obtain the speed of the vehicle; The vehicle driving status information image and / or the advertising information image includes: one or more of acceleration, deceleration, braking, current speed data, driving safety status, advertising and / or passenger welcome information.

5. A car, characterized in that: The invention comprises the automobile display system as claimed in any one of claims 1 to 4.

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