CN113978351A - Carpet lamp based on micro LED display, projection display system and method - Google Patents
Carpet lamp based on micro LED display, projection display system and method Download PDFInfo
- Publication number
- CN113978351A CN113978351A CN202111499646.5A CN202111499646A CN113978351A CN 113978351 A CN113978351 A CN 113978351A CN 202111499646 A CN202111499646 A CN 202111499646A CN 113978351 A CN113978351 A CN 113978351A
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- Prior art keywords
- micro led
- led display
- projection
- carpet
- carpet lamp
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
- B60Q1/2696—Mounting of devices using LEDs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
- B60Q1/2657—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic mounted on a shaft, e.g. telescopic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
- B60Q1/30—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating rear of vehicle, e.g. by means of reflecting surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
- B60Q1/32—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating vehicle sides, e.g. clearance lights
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
- B60Q1/32—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating vehicle sides, e.g. clearance lights
- B60Q1/323—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating vehicle sides, e.g. clearance lights on or for doors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
- F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
- F21S43/14—Light emitting diodes [LED]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
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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
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2006—Lamp housings characterised by the light source
- G03B21/2033—LED or laser light sources
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2103/00—Exterior vehicle lighting devices for signalling purposes
- F21W2103/60—Projection of signs from lighting devices, e.g. symbols or information being projected onto the road
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
- F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Theoretical Computer Science (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
The invention is suitable for the field of carpet lamps, and provides a carpet lamp based on micro LED display, a projection display system and a projection display method. The micro LED display device is used as a light source, different patterns and animations can be input through driving, the projection lens module is used for amplifying and projecting on a road surface to realize various functions, for example, a beautiful animation effect can be projected when a guest is welcomed, and even the feedback information or a warning signal can be given by customer self-definition, so that the ceremony feeling of a user is increased, the safety can be improved, and the use experience of a vehicle can be obviously improved.
Description
Technical Field
The invention belongs to the field of carpet lamps, and particularly relates to a carpet lamp based on micro LED display, a projection display system and a projection display method.
Background
At present, the intelligent development of the 'new four-style' wave mat automobile industry enables vehicles to be safer and brings great convenience to consumers, new technologies and new concepts are continuously given off, the buying desire of young consumers is stimulated, the consumers are enabled to chase after more and more intellectualization, and automobile lamps and lanterns are urgently needed to develop in a direction of being more intelligent and providing more useful values.
At present, the carpet lamp for the vehicle mainly adopts the scheme that a single LED is focused by a condensing lens, forms a pattern through a film and penetrates through a projection lens group imaging mode, however, the current scheme can only realize the projection of a single pattern and can only be simply used for a single function, the ever-increasing requirements of consumers can not be met, and the current 'new and quadrupled' step can not be followed.
Disclosure of Invention
In view of the above problems, the present invention provides a carpet lamp based on micro LED display and a projection display system, and aims to solve the technical problem of single projection imaging pattern of the existing carpet lamp.
On the one hand, carpet lamp based on micro LED shows is including the procapsid and the back casing that the lid closed, the procapsid openly has the window, installs the circuit board around wherein between the casing, be equipped with micro LED display device on the circuit board, the projection lens module is still installed to micro LED display device's dead ahead, the coaxial setting of window of micro LED display device, projection lens module and procapsid.
Furthermore, the rear shell is a heat dissipation shell, and a heat dissipation device is arranged on the back surface of the rear shell. The front shell and the rear shell are sealed through a sealing ring.
Further, the carpet lamp still includes the support of adjusting luminance, procapsid and back casing monolithic installation be in adjust luminance in the support, there is the mounting bracket projection lens module bottom, the mounting bracket bottom surface is for dodging the notch.
Furthermore, the micro LED pixel units are densely distributed in the middle of the micro LED display device.
Furthermore, a micro lens array is arranged in front of the micro LED display device.
On the other hand, the projection display system comprises a vehicle ECU and the carpet lamp, the vehicle ECU is connected with the carpet lamp through a bus, and the carpet lamp is further connected with a power supply.
In a third aspect, the projection display method includes the steps of:
step S1, making the original data of the image or animation needing to be projected;
and step S2, acquiring vehicle data from the vehicle ECU, acquiring corresponding original data when the projection conditions are met and a projection trigger signal is received, driving a micro LED display device of the carpet lamp to emit light, and projecting the corresponding road surface pixel pattern on the ground by the light through the projection lens module.
The invention has the beneficial effects that: according to the carpet lamp based on micro LED display, the micro LED display device is used as a light source, different patterns and animations can be input through driving, the projection lens module is used for amplifying and projecting on a road surface to achieve various different functions, for example, a beautiful animation effect can be projected when a guest is welcomed, and even the carpet lamp can be customized by a consumer, but the existing carpet lamp can only provide one fixed pattern; the pattern that can project through this product has the multiple, for example can project the sign of warning of opening the door when the door is opened for other users 'doors of warning road are about to open, promote the security, for example can remind vehicle user's door window not close when shutting etc. therefore the product is used extensively, can obviously improve vehicle and use experience.
Drawings
FIG. 1 is an exploded view of a carpet light provided by an embodiment of the present invention;
FIG. 2 is a perspective view of a carpet light provided by an embodiment of the present invention;
FIG. 3 is a schematic view of a carpet light installation provided by an embodiment of the present invention;
FIG. 4 is a schematic diagram of a micro LED display device provided by an embodiment of the invention;
FIG. 5 is a schematic view of a display of a carpet light projected onto a floor provided by an embodiment of the present invention;
fig. 6 is a schematic diagram of a projection display system provided by an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In order to explain the technical means of the present invention, the following description will be given by way of specific examples.
Fig. 1 illustrates a structure of a carpet lamp based on micro LED display provided by an embodiment of the present invention, and only a portion related to the embodiment of the present invention is illustrated for convenience of description.
As shown in fig. 1 and 2, the carpet lamp based on micro LED display that this embodiment provided includes procapsid 2 and the back casing 5 that the lid closed, procapsid 2 openly has the window, wherein installs circuit board 4 between the procapsid, and in the figure, the circuit board passes through the screw fixation in the procapsid, be equipped with micro LED display device 41 on the circuit board 4, projecting lens module 3 is still installed to micro LED display device 41's dead ahead, the coaxial setting of window of micro LED display device 41, projecting lens module 3 and procapsid 2. In the figure, the front shell 2 and the rear shell 5 are sealed by a sealing ring 7 to ensure the sealing performance of the carpet lamp. In order to ensure the heat dissipation effect, the rear shell of the carpet lamp is a heat dissipation shell, the circuit board is tightly attached to the rear shell, and the back surface of the rear shell is provided with a heat dissipation device 6, such as a heat dissipation fan, a heat dissipation fin and the like.
In addition, there is mounting bracket 31 projection lens module 3 bottom, the mounting bracket bottom surface is for dodging the notch, can guarantee through the mounting bracket that projection lens module installation is firm and the coaxial degree of accuracy of installation. The mounting bracket can be directly installed on the rear shell and also can be fixed on the circuit board, and the avoiding notch of the mounting bracket is designed to accommodate the micro LED display device.
The existing carpet lamp adopts a single LED to change light diffused by the LED into parallel light through a condensing lens, then forms an object image through a film, and images on the ground through a projection lens. In the structure, the carpet lamp adopts a micro LED display device to replace a single LED, a condensing lens and a film part to form an editable object image, so that the image projected on the road surface can be displayed more intelligently, such as diversity, animation effect and the like.
Specifically, the projection lens module of this structure can be become by 3 to 5 lens groups, and micro LED display device's light emitting area is arranged in the depth of focus within range of projection lens module, is the micro LED pixel unit that the intensive range distributes in the middle of the micro LED display device. The pixel unit interval is 10 mu m to 50 mu m, and less than 10 mu m then two pixel unit (chip) intervals are not enough, and the light and shade contrast is not good and leads to the projection image not clear, and adjacent pixel point light and shade contrast is at 100: 1, if the pixel unit distance is more than 50 μm, the edge of the image after being amplified by the projection system has obvious saw teeth, the edge of the projected image is not clear, the granular sensation is strong, and the focal length of the projection system is not more than 20mm, so that the projection system has enough depth of field to ensure that the pattern projected on the ground is clear.
In this embodiment, the pixel arrangement of the micro LED display device is 246 × 82, that is, 20172 micro LEDs, and the center-to-center distance between adjacent micro LEDs is 40 μm, that is, the pixel unit distance is 40 μm. The micro LED display device is located on the focal plane of the projection lens module, the focal length of the projection lens module is 13mm, F/4.5, the diameter of a circle of confusion is 0.04mm, the focusing distance is 939mm, and the depth of field is 470mm to infinity.
The carpet lamp is arranged on the outer side or the back of a vehicle body of a vehicle, for example, the carpet lamp can be arranged in the areas of an external rear view mirror, a fender, a hub, a chassis, a pedal and the like, and a projected image is projected on the side or the back of the vehicle. In addition, a plurality of carpet lamps are also installed optionally, and a larger projection area or higher brightness is realized in a mode of splicing or overlapping projection patterns.
As a preferred structure, the installation angle of the carpet lamp is adjustable. In this structure, the carpet lamp is still including adjusting luminance support 1, procapsid and back casing monolithic installation are in adjust luminance in the support 1, the support left and right sides of adjusting luminance has installation axle 11, and the support of adjusting luminance can be around installing the axle and rotate as the axle, and concrete actuating mechanism this embodiment is not specifically injectd.
Optionally, a micro lens array may be further disposed in front of the micro LED display device, each micro lens corresponds to one micro LED pixel unit, and is used for condensing light to improve brightness, and at this time, the light emitting surface of the micro lens is disposed in the focal depth range of the projection system. And the projection lens module can be designed into a zoom system to adapt to different field angle requirements and different depth of field requirements.
As an example, as shown in fig. 3, the projection light cone 104 of the carpet lamp projects a projection distance range (actual range may be larger than the illustrated range) of the carpet lamp 102 on the ground 103, the carpet lamp 102 is mounted on the vehicle body 101 of the vehicle through a dimming bracket, the dimming bracket has a function of adjusting the projection position of the projection light cone of the carpet lamp on the ground, and the whole carpet lamp is an enlarged imaging optical system and forms an inverted enlarged real image on the ground. As shown in fig. 4 and 5, the micro LED display device 41 has a display pattern 42 projected on the ground to form a road surface pixel pattern 40 ', and the upper left pixel unit 401 and the lower right pixel unit 402 of the micro LED display device are projected on the ground to correspond to the road surface pixel units 401 ' and 402 '. As a specific implementation manner, the carpet lamp is connected to the entire vehicle, the entire vehicle electronic control unit inputs a signal to the carpet lamp, the micro LED display device displays the display pattern 42 as shown in fig. 4, and the carpet lamp projects the road surface pixel pattern 40' as shown in fig. 5 on the ground, it can be seen that, since the carpet lamp projects obliquely toward the ground, the micro LED display pattern and the projected road surface pixel pattern have certain deformation, so that the pattern information input in the entire vehicle electronic control unit needs to be subjected to trapezoidal correction, a coordinate transformation algorithm is adopted, and the specific algorithm is not repeated in this embodiment.
The embodiment also provides a projection display system, as shown in fig. 6, which includes a vehicle ECU, indicated by 100, and the carpet light 102, where the vehicle ECU and the carpet light are connected through a bus, and the carpet light is further connected to a power supply 103.
The carpet lamp is characterized in that a driving module is arranged in a circuit board of the carpet lamp, projected patterns or animations CAN be edited, the carpet lamp CAN be installed below a chassis and obliquely projected downwards on a road surface on the side face of a vehicle, and data communication CAN be performed between the carpet lamp and an ECU of the vehicle, for example, a CAN bus form is adopted. The carpet lamp passes through CAN bus and obtains signals such as radar, door on-off state, door and window on-off state, battery electric quantity from whole car ECU, is triggered when corresponding signal, and the carpet lamp projection goes out corresponding image or animation, gives feedback information or warning signal, has increased user's ceremony sense and also CAN improve the security, and the vehicle also CAN realize projection pattern concatenation or stack through installing a plurality of micro LED carpet lamps, realizes bigger projection area or higher luminance.
In addition, the embodiment also provides a projection display method of the carpet lamp, which specifically comprises the following steps:
step S1, raw data of the image or animation to be projected is created.
There may be one or more of an image or animation to be projected, such as a power prompt image, a greeting animation, a window status prompt image, and the like. For each image or animation, corresponding raw data needs to be produced.
And step S2, acquiring vehicle data from the vehicle ECU, acquiring corresponding original data when the projection conditions are met and a projection trigger signal is received, driving a micro LED display device of the carpet lamp to emit light, and projecting the corresponding road surface pixel pattern on the ground by the light through the projection lens module.
Whether need projected signal instruction be that the carpet lamp passes through CAN bus and acquires from whole car ECU, to the vehicle data who acquires, for example signals such as radar, door on-off state, door and window on-off state, battery power, these vehicle data have earlier stage CAN set up a projection condition (including data threshold value, the on-off state of signal etc.), when the projection condition is triggered, still close the state like the window, when receiving projection trigger signal simultaneously, projection trigger signal is the signal of opening the door usually, the car owner is after driving the door like this, and automatic drive micro LED display device sends the symbol pattern suggestion that the suggestion window did not close to subaerial projection goes out corresponding road surface pixel pattern, including image or animation, this embodiment does not do the restriction.
As mentioned above, the projected road pixel pattern and the pattern displayed by the micro LED display device are deformed, so that the trapezoidal correction needs to be calculated reversely, and the distance between each corner point of the pattern and the carpet light is calculated according to the projection angle of the carpet light, so as to obtain the pattern displayed by the micro LED display device.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. The utility model provides a carpet lamp based on micro LED shows, a serial communication port, carpet lamp is including procapsid and the back casing that the lid closed, the procapsid openly has the window, installs the circuit board around wherein between the casing, be equipped with micro LED display device on the circuit board, the projection lens module is still installed to micro LED display device's dead ahead, the coaxial setting of window of micro LED display device, projection lens module and procapsid.
2. The micro LED display-based carpet lamp of claim 1, wherein the rear housing is a heat dissipating housing with a heat dissipating device on the back, and the front housing and the rear housing are sealed by a sealing ring.
3. The micro LED display-based carpet lamp according to claim 2, wherein the carpet lamp further comprises a dimming support, the front housing and the rear housing are integrally installed in the dimming support, a mounting rack is arranged at the bottom of the projection lens module, and the bottom surface of the mounting rack is an avoiding notch.
4. The micro LED display-based carpet lamp according to claim 3, wherein the micro LED display device is provided with micro LED pixel units distributed in a dense arrangement in the middle.
5. The carpet lamp based on micro LED display of claim 4, characterized in that a micro lens array is arranged in front of the micro LED display device.
6. A projection display system, characterized in that the projection display system comprises a vehicle ECU and a carpet lamp according to any one of claims 1-5, the vehicle ECU and the carpet lamp are connected through a bus, and the carpet lamp is further connected with a power supply.
7. A projection display method, characterized in that the method comprises the steps of:
step S1, making the original data of the image or animation needing to be projected;
and step S2, acquiring vehicle data from the vehicle ECU, acquiring corresponding original data when the projection conditions are met and a projection trigger signal is received, driving a micro LED display device of the carpet lamp to emit light, and projecting the corresponding road surface pixel pattern on the ground by the light through the projection lens module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111499646.5A CN113978351A (en) | 2021-12-09 | 2021-12-09 | Carpet lamp based on micro LED display, projection display system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111499646.5A CN113978351A (en) | 2021-12-09 | 2021-12-09 | Carpet lamp based on micro LED display, projection display system and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113978351A true CN113978351A (en) | 2022-01-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111499646.5A Pending CN113978351A (en) | 2021-12-09 | 2021-12-09 | Carpet lamp based on micro LED display, projection display system and method |
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| CN (1) | CN113978351A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4253150B1 (en) * | 2022-03-29 | 2024-05-01 | Motherson Innovations Company Limited | Hybrid semi-dynamic animated logo lamp, vehicle component and vehicle |
-
2021
- 2021-12-09 CN CN202111499646.5A patent/CN113978351A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4253150B1 (en) * | 2022-03-29 | 2024-05-01 | Motherson Innovations Company Limited | Hybrid semi-dynamic animated logo lamp, vehicle component and vehicle |
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