CN111596508A - Automobile rear windshield display system - Google Patents
Automobile rear windshield display system Download PDFInfo
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- CN111596508A CN111596508A CN202010529249.7A CN202010529249A CN111596508A CN 111596508 A CN111596508 A CN 111596508A CN 202010529249 A CN202010529249 A CN 202010529249A CN 111596508 A CN111596508 A CN 111596508A
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R11/02—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
- B60R11/0229—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof for displays, e.g. cathodic tubes
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Instrument Panels (AREA)
Abstract
The invention relates to the technical field of application of new materials to automobile intelligent display, and discloses an automobile rear windshield display system which comprises a photoluminescent film, projection equipment and a wireless control unit, wherein the photoluminescent film is a transparent haze-free film and is configured to be attached to the inner surface or the outer surface of the automobile rear windshield; the projection device is configured to emit light rays that excite the photoluminescent film to emit light to form one or more of letters, numbers, figures, and patterns on the photoluminescent film; the wireless control unit is in communication connection with the projection device, the wireless control unit is configured to transmit a display signal to the projection device, the projection device projects light onto the photoluminescent film according to the display signal, and the wireless control unit can be controlled by one or more of keys, voice and a vehicle control system of an automobile.
Description
Technical Field
The invention relates to the technical field of application of new materials to automobile intelligent display, in particular to an automobile rear windshield display system.
Background
Currently, during driving, information exchange between vehicles is usually performed by traditional whistling, hazard lights, high beams, stickers, etc. However, the information transmitted by these communication methods is not rich and flexible enough, and has a limitation in security.
With the development of informatization and networking of automobile technology, interaction between vehicles is increasingly required, and many automobile companies try various ways to realize interaction between vehicles, but none of them have good technical solutions. At present, the most basic automobile interaction mode which is mature is the change of an automobile lamp, and only automobile glass is required to perform information interaction between automobiles except the automobile lamp.
In view of the above-mentioned drawbacks, the present designer is actively making research and innovation to create an automobile rear windshield display system, which has industrial application value.
Disclosure of Invention
The invention aims to provide an automobile rear windshield display system which can display information on automobile rear windshield to realize information interaction between automobiles.
In order to achieve the purpose, the invention adopts the following technical scheme:
an automotive backlite display system comprising a photoluminescent film, a projection device and a wireless control unit, wherein:
the photoluminescent film is a transparent haze-free film configured to be attached to an inner surface or an outer surface of an automotive rear windshield;
the projection device is configured to emit light rays that excite the photoluminescent film to emit light to form one or more of letters, numbers, figures, and patterns on the photoluminescent film;
the wireless control unit is in communication connection with the projection device, the wireless control unit is configured to transmit a display signal to the projection device, the projection device projects light onto the photoluminescent film according to the display signal, and the wireless control unit can be controlled by one or more of keys, voice and a vehicle control system of an automobile.
As a preferable scheme of the above automobile rear windshield display system, the projection device includes an imaging module and a lens module, the imaging module is in communication connection with the wireless control unit, and the imaging module is configured to emit light through the lens module according to the display signal.
As a preferable scheme of the above automobile rear windshield display system, the wireless control unit includes a constant current driving module in communication connection with the imaging module, the constant current driving module is in communication connection with a wireless receiving module, the wireless receiving module is in communication connection with a wireless output module, the constant current driving module is configured to generate the display signal from the signal received by the wireless receiving module, and the wireless output module is integrated in the key.
As a preferable scheme of the above automobile rear windshield display system, the wireless control unit includes a constant current driving module in communication connection with the imaging module, the constant current driving module is connected with a wireless receiving module in a communication way, the wireless receiving module is connected with a voice control unit in a communication way, the voice control unit comprises a voice input module and a voice recognition conversion module which are in communication connection, the voice recognition conversion module is in communication connection with a wireless output module, the voice input module is configured to receive voice information, the speech recognition conversion module is configured to recognize the speech information and convert into a speech signal, the wireless output module is configured to transmit the voice signal to the wireless receiving module, the constant current driving module is configured to generate the display signal from the voice signal received by the wireless receiving module.
As a preferable scheme of the automobile rear windshield display system, the wireless receiving module is one of a 2.4G receiving module, a bluetooth receiving module or a WiFi receiving module, and the wireless output module is one of a 2.4G transmitting module, a bluetooth transmitting module or a WiFi transmitting module.
As a preferable scheme of the above automobile rear windshield display system, the wireless control unit includes a constant current driving module in communication connection with the imaging module, the constant current driving module is in communication connection with a control module, the control module is in communication connection with the driving control system, the control module is configured to convert an instruction generated by the driving control system into a signal and output the signal to the constant current driving module, and the constant current driving module is configured to generate the display signal from the signal converted by the control module.
As a preferred scheme of the automobile rear windshield display system, the driving control system is in communication connection with a steering rod physical signal module, a brake physical signal module and a double-flash physical signal module.
As a preferable scheme of the automobile rear windshield display system, the constant current driving module is connected with a power supply.
As a preferable embodiment of the above-mentioned automobile rear windshield display system, the wavelength of the light source of the projection device is 350nm to 490nm, and the excitation wavelength of the photoluminescent film is 350nm to 490 nm.
As a preferable aspect of the above-described automobile rear windshield display system, the projection device may be mounted on a seat back of an automobile.
The invention has the beneficial effects that: the transparent haze-free photoluminescent film is used as a display medium and attached to the rear windshield of the automobile, the projection equipment with a light source with a specific wavelength is used for exciting the photoluminescent film to emit light for display, the display of characters, letters, numbers, figures, patterns and the like is controlled in a very convenient mode without influencing the driving safety of a driver, warning information is displayed on the rear windshield of the automobile to prompt the rear automobile, and information interaction between the automobiles is realized.
Drawings
FIG. 1 is a block diagram of an automotive backlite display system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a first embodiment of an automotive backlite display system provided by the present invention;
FIG. 3 is a schematic diagram of a second embodiment of an automotive backlite display system provided by the present invention;
fig. 4 is a schematic diagram of a third embodiment of a rear windshield display system of an automobile according to the present invention.
In the figure: 10-photoluminescent film, 20-projection equipment, 30-wireless control unit and 40-automobile rear windshield.
Detailed Description
In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
As shown in fig. 1, the display system for a rear windshield of an automobile of the present invention includes a photoluminescent film 10, a projection device 20, and a wireless control unit 30. Wherein, the photoluminescent film 10 is a transparent haze-free film configured to be attached on the inner surface or the outer surface of the rear windshield 40 of the automobile; the projection device 20 is configured to emit light rays that excite the photoluminescent film 10 to emit light to form one or more of letters, numbers, figures, and patterns on the photoluminescent film 10; the wireless control unit 30 is communicatively connected to the projection device 20, the wireless control unit 30 is configured to transmit a display signal to the projection device 20, the projection device 20 projects light onto the photoluminescent film 10 according to the display signal, and the wireless control unit 30 can be controlled by one or more of a key, voice, and a driving control system of an automobile. The invention utilizes the transparent haze-free photoluminescent film 10 as a display medium to be attached to the automobile rear windshield 40, utilizes the projection equipment 20 with a light source with a specific wavelength to excite the photoluminescent film 10 to emit light for display, controls the display of characters, letters, numbers, figures, patterns and the like in a very convenient way without influencing the driving safety of a driver, displays some warning information on the automobile rear windshield 40 to prompt the rear automobile, and realizes the information interaction between the automobiles. Specifically, the light source of the projection device 20 has a wavelength of 350nm to 490nm, the excitation wavelength of the photoluminescent film 10 is 350nm to 490nm, and the light source of the projection device 20 may be an LED or an LD.
As for the projection device 20, as shown in fig. 2 to 4, in the present invention, the projection device 20 includes an imaging module communicatively connected to the wireless control unit 30 and a lens module configured to emit light through the lens module according to a display signal. In the present invention, a DLP (Digital Light Processing) projector may be used as the projection Device 20, and the information display on the photoluminescent film 10 is realized by communicating with a DMD (Digital micro mirror Device) chip of the DLP projector through the wireless control unit 30, and the resolution of the display is determined by the DMD chip (i.e., the imaging module in the present invention). A light source in a DLP projector emits light with a specific wavelength, the light with the specific wavelength is reflected on a DMD chip by a trimming lens, the DMD chip consists of millions of micro mirrors, one micro mirror represents one pixel, the change rate reaches 1000 times/second or faster, a rotating device which acts like a hinge is arranged below each micro mirror, the hinge structure allows the lens to be inclined between two states, the +10 degrees are in an 'on' state, the-10 degrees are in an 'off' state, and the lens is in a 'off' state when not in work at 0 degrees. The DLP projection technology is the prior art, and based on million-level micro mirrors in a DMD chip, a DLP projector can provide 256-segment gray levels, and required information can be displayed on the rear glass of an automobile by matching the DLP projector with the photoluminescent film 10.
The principle of the automobile rear windshield display system is as follows: the content to be displayed is preset in the projection device 20, the wireless control unit 30 outputs a display signal (current modulation signal), the projection device 20 matches the received display signal with the display content, and the light of the display content corresponding to the display content matched with the display signal is projected on the photoluminescent film 10.
The above technical means are described below by specific examples.
Example one
As shown in fig. 2, the wireless control unit 30 includes a constant current driving module communicatively connected to the imaging module, the constant current driving module communicatively connected to a wireless receiving module, the wireless receiving module communicatively connected to a wireless output module, the constant current driving module configured to generate a display signal from a signal received by the wireless receiving module, the wireless output module being integrated into the key. That is, the button is opened, the button is to wireless control unit 30 transmission signal (such as digital signal), wireless output module gives wireless receiving module with signal transmission, wireless receiving module gives constant current drive module with signal output, constant current drive module generates display signal (current modulation signal) with the signal that wireless receiving module received, projection equipment 20 matches display signal, thereby control projection equipment 20's imaging module sends the light of corresponding demonstration content, projection equipment 20's camera lens module projects light to photoluminescence membrane 10 on, photoluminescence membrane 10 is stimulated to send and shows contents such as characters, the letter, the numeral, figure and pattern.
Example two
As shown in fig. 3, in this embodiment, the wireless control unit 30 also includes a constant current driving module communicatively connected to the imaging module, and the constant current driving module is communicatively connected to the wireless receiving module. The wireless receiving module is in communication connection with a voice control unit, the voice control unit comprises a voice input module and a voice recognition conversion module which are in communication connection, the voice recognition conversion module is in communication connection with a wireless output module, the voice input module is configured to receive voice information, the voice recognition conversion module is configured to recognize the voice information and convert the voice information into voice signals, the wireless output module is configured to send the voice signals to the wireless receiving module, and the constant current driving module is configured to generate display signals from the voice signals received by the wireless receiving module. That is, the constant current driving module is controlled by voice to generate a display signal (current modulation signal). Specifically, the user sends out the pronunciation that corresponds the display content, and wireless control unit 30 obtains the speech information (such as digital signal) about the display information to convert speech information into display signal (current modulation signal), projection equipment 20 matches the display signal, thereby control projection equipment 20's imaging module sends the light of corresponding display content, projection equipment 20's lens module throws light to photoluminescence film 10 on, photoluminescence film 10 is stimulated to send the content that shows the user and speaks.
The wireless receiving module in the above two embodiments may be one of a 2.4G receiving module, a bluetooth receiving module or a WiFi receiving module, and the wireless output module may be one of a 2.4G transmitting module, a bluetooth transmitting module or a WiFi transmitting module.
EXAMPLE III
As shown in fig. 4, in this embodiment, the wireless control unit 30 includes a constant current driving module communicatively connected to the imaging module, the constant current driving module is communicatively connected to a control module, the control module is communicatively connected to a vehicle control system, the control module is configured to convert an instruction generated by the vehicle control system into a signal and output the signal to the constant current driving module, and the constant current driving module is configured to generate a display signal from the signal converted by the control module. Specifically, the driving control system is in communication connection with a steering rod physical signal module, a brake physical signal module and a double-flash physical signal module. For example, when the steering lever physical signal module generates a steering instruction, the driving control system outputs the instruction to the control module, the control module generates a steering signal from the steering instruction and outputs the steering signal to the constant current driving module, the constant current driving module generates a display signal (current modulation signal) from the steering signal, the projection device 20 matches the display signal, so as to control the imaging module of the projection device 20 to emit light rays of corresponding display contents, the lens module of the projection device 20 projects the light rays onto the photoluminescent film 10, and the photoluminescent film 10 is stimulated to emit and display contents such as characters, letters, numbers, figures, patterns and the like.
Of course, in the above three embodiments, the constant current driving module is connected to a power supply, and a lithium battery may be used as the power supply to supply power to the constant current driving module.
When information display is required to be carried out on the automobile rear windshield 40, the photoluminescent film 10 disclosed by the invention is attached to one surface of the automobile rear windshield 40, which is placed in an automobile, and the back surface of the photoluminescent film 10 is provided with self-adhesive gum, so that the photoluminescent film is convenient to attach; the projection device 20 can be installed on the back of a seat of an automobile, the projection direction is adjusted, and a key, voice or a driving control system is selected to control the projection device 20 according to actual use requirements.
In conclusion, the automobile rear windshield display system can display information on the automobile rear windshield on the premise of ensuring the transparency and the haze of the automobile rear windshield, and realizes information interaction between automobiles.
The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.
Claims (10)
1. An automotive backlite display system comprising a photoluminescent film (10), a projection device (20), and a wireless control unit (30), wherein:
the photoluminescent film (10) is a transparent haze-free film configured to be affixed to an inner or outer surface of an automotive rear windshield (40);
the projection device (20) is configured to emit light rays that excite the photoluminescent film (10) to emit light to form one or more of letters, numbers, figures, and patterns on the photoluminescent film (10);
the wireless control unit (30) is in communication connection with the projection device (20), the wireless control unit (30) is configured to transmit a display signal to the projection device (20), the projection device (20) projects light onto the photoluminescent film (10) according to the display signal, and the wireless control unit (30) is controllable by one or more of a key, voice, and a vehicle driving control system of an automobile.
2. The automotive backlite display system of claim 1, wherein the projection device (20) comprises an imaging module and a lens module, the imaging module communicatively coupled to the wireless control unit (30), the imaging module configured to emit light through the lens module in accordance with the display signal.
3. The automotive rear windshield display system of claim 2, wherein the wireless control unit (30) comprises a constant current driving module in communication connection with the imaging module, the constant current driving module is in communication connection with a wireless receiving module, the wireless receiving module is in communication connection with a wireless output module, the constant current driving module is configured to generate the display signals from signals received by the wireless receiving module, and the wireless output module is integrated in the keys.
4. The automotive backlite display system of claim 2, wherein the wireless control unit (30) includes a constant current drive module communicatively coupled to the imaging module, the constant current driving module is connected with a wireless receiving module in a communication way, the wireless receiving module is connected with a voice control unit in a communication way, the voice control unit comprises a voice input module and a voice recognition conversion module which are in communication connection, the voice recognition conversion module is in communication connection with a wireless output module, the voice input module is configured to receive voice information, the speech recognition conversion module is configured to recognize the speech information and convert into a speech signal, the wireless output module is configured to transmit the voice signal to the wireless receiving module, the constant current driving module is configured to generate the display signal from the voice signal received by the wireless receiving module.
5. The automobile rear windshield display system of claim 3 or 4, wherein the wireless receiving module is one of a 2.4G receiving module, a Bluetooth receiving module or a WiFi receiving module, and the wireless output module is one of a 2.4G transmitting module, a Bluetooth transmitting module or a WiFi transmitting module.
6. The automobile rear windshield display system according to claim 2, wherein the wireless control unit (30) comprises a constant current driving module which is in communication connection with the imaging module, the constant current driving module is in communication connection with a control module, the control module is in communication connection with the driving control system, the control module is configured to convert an instruction generated by the driving control system into a signal and output the signal to the constant current driving module, and the constant current driving module is configured to generate the display signal from the signal converted by the control module.
7. The display system of claim 6, wherein the vehicle control system is communicatively coupled to a steering column physical signal module, a brake physical signal module, and a dual flash physical signal module.
8. The automobile rear windshield display system according to any one of claims 3, 4 and 6, wherein the constant current driving module is connected with a power supply.
9. The automotive backlite display system of claim 1, wherein the light source of the projection device (20) has a wavelength of 350nm to 490nm and the excitation wavelength of the photoluminescent film (10) is 350nm to 490 nm.
10. The automotive backlite display system of claim 1, wherein the projection device (20) is mountable on a seat back of an automobile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010529249.7A CN111596508A (en) | 2020-06-11 | 2020-06-11 | Automobile rear windshield display system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010529249.7A CN111596508A (en) | 2020-06-11 | 2020-06-11 | Automobile rear windshield display system |
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| CN111596508A true CN111596508A (en) | 2020-08-28 |
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Application publication date: 20200828 |