A pixel-level illumination LED module, device and illumination system

Abstract

The utility model provides a kind of pixel-level illumination LED module, equipment and lighting system, wherein, pixel-level illumination LED module is implemented flexible color combination and color mixing effect by the multiple color different LED lamp pearl of one or more sub-pixel units setting in pixel module;In addition, by the control module of corresponding single pixel module setting, the independent control of different color lamp pearl in each pixel module can be realized, input interface and output interface can respectively obtain control instruction from another module or forward instruction to another module, and then flexible multi-module connection combination can be realized while realizing the independent accurate control of single module and reducing the interference in link;Therefore, the pixel-level illumination LED module of the utility model has the advantages of high color mixing quality, high color point consistency, multi-form adaptation and stable flexible control.

Description

Technical Field

[0001] This utility model relates to the field of lighting equipment, and more specifically, to a pixel-level lighting LED module, equipment, and lighting system. Background Technology

[0002] With the continuous development of LED lighting technology, pixel-level LED lighting modules have been widely used in various fields such as home ambient lighting, commercial space decorative lighting, display device backlighting, and stage lighting due to their advantages of precise color control, flexible adjustment of light effects, and the ability to realize personalized lighting scenes. The core requirement of such modules is to achieve highly consistent color point output through the combination and arrangement design of LED colors, and to ensure the reliability of single or multiple modules working together through stable control methods.

[0003] The color combination and color mixing effects of pixel-level lighting LED modules in the current technology are still insufficient, and most of them adopt a bus centralized control architecture, in which all modules share the same control signal link. This makes it impossible to achieve independent and precise control of individual modules and flexible combination. At the same time, the link is susceptible to electromagnetic interference, which can cause control command distortion, resulting in LED flicker and color point offset. On the other hand, the LED operating current fluctuates greatly, which can easily lead to accelerated light decay of LEDs and shorten the life of the module after long-term use.

[0004] Therefore, developing a pixel-level lighting LED module with high color mixing quality, high color point consistency, multi-form adaptability, and stable and flexible control has become an urgent problem to be solved in the industry. Utility Model Content

[0005] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a pixel-level lighting LED module, device, and lighting system. The pixel-level lighting LED module includes: a pixel module comprising one or more sub-pixel units, each sub-pixel unit having multiple LED beads of different colors; a control module, corresponding to a single pixel module, electrically connected to the pixel module, used to control the corresponding pixel module as a pixel light source for illumination based on received control commands; an input interface, electrically connected to the control module, used to connect to the output interface of another pixel-level lighting LED module to receive control commands transmitted from the other pixel-level lighting module; and an output interface, electrically connected to the control module, used to connect to the input interface of another pixel-level lighting LED module to transmit control commands to the other pixel-level lighting module.

[0006] The pixel-level lighting LED module according to the first aspect of the present invention has at least the following beneficial effects: The pixel-level lighting LED module of the first aspect of this utility model achieves flexible color combinations and color mixing effects by using multiple LED beads of different colors set in one or more sub-pixel units in the pixel module. In addition, by setting a control module for each pixel module, independent control of different colored LED beads in each pixel module can be achieved. The input interface and output interface can respectively obtain control commands from another module or forward commands to another module. Thus, while realizing flexible multi-module connection and combination, it can also realize independent and precise control of a single module and reduce interference in the link. Therefore, the pixel-level lighting LED module of this utility model has the advantages of high color mixing quality, high color point consistency, multi-form adaptability and stable and flexible control.

[0007] In one embodiment, the control module is provided with a first interface and a second interface. The first interface is used for the control module to receive control commands, and the second interface is used for the control module to output control commands. In the case where the pixel-level lighting LED module is provided with one pixel module, the control module is provided with one corresponding pixel module. The first interface is connected to the input interface, and the second interface is connected to the output interface.

[0008] In one embodiment, when the pixel-level lighting LED module is provided with multiple pixel modules, the control module is provided with multiple corresponding pixel modules, the first interface is connected to the input interface or the second interface, and the second interface is connected to the output interface or the first interface.

[0009] In one embodiment, the pixel-level lighting LED module further includes a current-limiting resistor; all sub-pixel units in a single pixel module have LEDs of the same color connected in series, and the series-connected LEDs are connected to the control module after being connected in series with the current-limiting resistor; a current-limiting resistor is provided between the first interface and the input interface.

[0010] In one embodiment, the pixel-level lighting LED module further includes a filter capacitor; the control module is also provided with a third interface, and the input interface is also used to power the pixel module and the control module. The input interface is connected to each third interface and the LED beads connected in series, and the third interface is grounded through the filter capacitor; a current-limiting resistor is provided between the third interface and the input interface.

[0011] In one embodiment, the color combination of the LED beads in each sub-pixel unit includes: a red LED bead, a green LED bead, a blue LED bead, and a white LED bead; a red LED bead, a green LED bead, a blue LED bead, and a yellow LED bead; or a red LED bead, a green LED bead, a blue LED bead, a cyan LED bead, and a magenta LED bead; wherein the spectrum formed by the combination of LED beads of different colors is continuous.

[0012] In one embodiment, the LED beads in each sub-pixel unit are close together and arranged in a rhombus or rectangle.

[0013] A pixel-level lighting LED device according to a second aspect of the present invention includes a pixel-level lighting LED module as described in the first aspect of the present invention.

[0014] In one embodiment, the pixel-level lighting LED device includes multiple pixel-level lighting LED modules, and each pixel-level lighting LED module is connected in series through an input interface or an output interface.

[0015] A lighting system according to a third aspect of the present invention includes a pixel-level lighting LED module as described in the first aspect of the present invention, and the lighting system further includes a main control module connected to an input interface for sending control commands to the pixel-level lighting LED module.

[0016] The second and third aspects of the present invention both include the pixel-level lighting LED module as in the first aspect of the present invention, and therefore possess all the beneficial effects of the first aspect of the present invention, which will not be repeated here.

[0017] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention may be realized and obtained by means of what is particularly pointed out in the description, claims, and drawings. Attached Figure Description

[0018] The accompanying drawings are provided to further understand the technical solution of this utility model and constitute a part of the specification. They are used together with the embodiments of this utility model to explain the technical solution of this utility model, and do not constitute a limitation on the technical solution of this utility model.

[0019] Figure 1 This is a schematic diagram of the architecture of a pixel-level lighting LED module provided in one embodiment of the present invention; Figure 2 This is a schematic diagram of the architecture of a pixel-level lighting LED module provided in another embodiment of the present invention; Figure 3 This is a schematic diagram of the architecture of a pixel-level lighting LED module provided in another embodiment of the present invention; Figure 4 This is a circuit diagram of a pixel-level lighting LED module provided in a specific example of this utility model; Figure 5 This is a schematic diagram of the LED bead arrangement of a pixel-level lighting LED module provided in one embodiment of the present invention.

[0020] Reference numerals: Pixel-level lighting LED module 100, pixel module 110, sub-pixel unit 111, control module 120, first interface 121, second interface 122, input interface 130, output interface 140, LED bead 200, current limiting resistor 210, filter capacitor 220, third interface 230. Detailed Implementation

[0021] The technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. These embodiments are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0022] It should be noted that in the description of this disclosure, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" and "second" may explicitly or implicitly include one or more features.

[0023] It should also be noted that if the embodiments of this disclosure involve directional indicators, such as up, down, left, right, front, back, etc., then the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (such as shown in the figure). If the specific posture changes, the directional indicators should also change accordingly.

[0024] Furthermore, unless otherwise explicitly specified and limited, the term "connection / linkage" should be interpreted broadly, for example, it can be a fixed connection or a movable connection, a detachable connection or a non-detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection or a connection that allows communication between the two components; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components or an interaction between two components.

[0025] Finally, in the description of this disclosure, references to terms such as "one embodiment / implementation," "another embodiment / implementation," or "some embodiments / implementations," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least two embodiments or implementations of this disclosure. In this disclosure, illustrative expressions of the above terms do not necessarily refer to the same embodiment or implementation. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or implementations.

[0026] The embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0027] like Figure 1 As shown, Figure 1 This is a schematic diagram of the architecture of a pixel-level lighting LED module 100 provided in one embodiment of the present invention. Figure 1 In the examples, the pixel-level lighting LED module 100 of this utility model embodiment includes, but is not limited to: The pixel module 110 includes one or more sub-pixel units 111, each sub-pixel unit 111 being provided with multiple LED beads 200 of different colors; A control module 120 is set for a single pixel module 110. The control module 120 is electrically connected to the pixel module 110 and is used to control the corresponding pixel module 110 as a pixel light source for illumination based on the received control command. The input interface 130 is electrically connected to the control module 120. The input interface 130 is used to connect to the output interface 140 of another pixel-level lighting LED module 100 to receive control commands transmitted from the other pixel-level lighting module. The output interface 140 is electrically connected to the control module 120. The output interface 140 is used to connect to the input interface 130 of another pixel-level lighting LED module 100 to transmit control commands to the other pixel-level lighting module.

[0028] It is understood that by setting multiple LED beads 200 of different colors in one or more sub-pixel units 111 in the pixel module 110, flexible color combinations and color mixing effects can be achieved. In addition, by setting a control module 120 for each pixel module 110, independent control of different colored LED beads in each pixel module 110 can be achieved. The input interface 130 and the output interface 140 can respectively obtain control commands from another module or forward commands to another module. Thus, while realizing flexible multi-module connection and combination, independent and precise control of a single module can be achieved and interference in the link can be reduced. Therefore, the pixel-level lighting LED module of this utility model has the advantages of high color mixing quality, high color point consistency, multi-form adaptability and stable and flexible control.

[0029] It should be noted that the overall shape of the module includes, but is not limited to, square, semi-circular, arc, and elongated shapes, and the appropriate shape can be selected according to the actual installation scenario (such as arc ceiling, narrow light trough, semi-circular decorative surface).

[0030] like Figure 2 As shown, Figure 2 This is a schematic diagram of the architecture of a pixel-level lighting LED module 100 provided in another embodiment of the present invention. Figure 2 In the example, the control module 120 is provided with a first interface 121 and a second interface 122. The first interface 121 is used for the control module 120 to receive control commands, and the second interface 122 is used for the control module 120 to output control commands. In addition, Figure 2 In the example, the pixel-level lighting LED module 100 is provided with a pixel module 110, and the control module 120 is provided with a corresponding pixel module 110. The first interface 121 is connected to the input interface 130, and the second interface 122 is connected to the output interface 140.

[0031] like Figure 3 As shown, Figure 3 This is a schematic diagram of the architecture of a pixel-level lighting LED module 100 provided in another embodiment of the present invention. Figure 3 In the example, multiple pixel-level lighting LED modules 100 are provided, and multiple pixel module 110 control modules 120 are provided corresponding to the pixel modules 110. The first interface 121 is connected to the input interface 130 or the second interface 122, and the second interface 122 is connected to the output interface 140 or the first interface 121.

[0032] Specifically, in the above example, multiple control modules 120 in a single pixel-level lighting LED module 100 are connected in series. The first interface 121 of the first control module 120 connected in series is connected to the input interface 130, and the second interface 122 of the last control module 120 connected in series is connected to the output interface 140. After receiving an externally input control command, the first control module 120 controls the pixel module 110 to work according to the control command, and at the same time transmits the control command to the first interface 121 of the control module 120 connected in series through the second interface 122, until the last control module 120 connected in series transmits the control command to the output interface 140.

[0033] Understandably, in combination Figure 2 and Figure 3 As can be seen from the example, a single pixel-level lighting LED module 100 can be integrated into the same module as a single pixel-level lighting pixel or as multiple pixel-level lighting pixels, and can be flexibly connected and combined.

[0034] Specifically, the pixel-level lighting LED module 100 provided by this utility model supports a "cascaded" instruction transmission architecture: after the preceding protocol working chip, i.e., the control module 120, receives the instruction transmitted by the main chip or the preceding protocol working chip, it first extracts and saves the data required to control the corresponding module, and then transmits the remaining instruction data to the next level protocol working chip. This cascade continues until all modules receive the corresponding control instructions, realizing independent control of a single module. Therefore, by constructing a hierarchical independent control system, precise control of a single module is achieved, and the control stability and LED lifespan are ensured through filtering and current limiting design.

[0035] like Figure 4 As shown, Figure 4This is a circuit diagram of a pixel-level lighting LED module 100 provided in a specific example of this utility model. Figure 4 In the example, all sub-pixel units 111 in a single pixel module 110 have LED beads 200 of the same color connected in series, and the LED beads 200 connected in series are connected to the control module 120 after being connected in series with a current-limiting resistor 210.

[0036] Specifically, a current-limiting resistor 210 is provided between the first interface 121 and the input interface 130.

[0037] Specifically, the control module 120 is also provided with a third interface 230, and the input interface 130 is also used to power the pixel module 110 and the control module 120. The input interface 130 is connected to each third interface 230 and the LED beads 200 connected in series, and the third interface 230 is grounded through the filter capacitor 220. Specifically, a current-limiting resistor 210 is provided between the third interface 230 and the input interface 130.

[0038] Understandably, the filter capacitor 220 is used to filter out high-frequency interference signals in the circuit and ensure voltage stability; the current-limiting resistor 210 connected between the LED bead 200 and the control module 120 precisely limits the operating current of each LED bead to prevent the LED bead from light decay or damage due to overcurrent; the current-limiting resistor 210 between the first interface 121 and the input interface 130 and between the third interface 230 and the input interface 130 has both filtering and current limiting functions to avoid instantaneous large current surges in the circuit.

[0039] In one embodiment, the color combination method of the LED beads 200 in each sub-pixel unit 111 includes: One red LED, one green LED, one blue LED, and one white LED; One red LED, one green LED, one blue LED, and one yellow LED; One red LED, one green LED, one blue LED, one cyan LED, and one magenta LED; The spectrum formed by the combination of 200 LED beads of different colors is continuous.

[0040] Understandably, existing modules mostly use a combination of red, green, and blue LED beads, relying on the mixing of these three primary colors to generate white light and other colors. However, the white light generated by this method has a low color rendering index, rapid brightness decay, and difficulty in covering some highly saturated color areas, failing to meet the needs of scenarios with high color reproduction requirements. This invention, through the use of 200 LED beads of the aforementioned colors, achieves better color combination and mixing effects, and its combined light emission can achieve a continuous spectrum, further improving the lighting effect.

[0041] Reference Figure 5 , Figure 5 This is a schematic diagram of the arrangement of LED beads 200 in a pixel-level lighting LED module 100 provided in an embodiment of the present invention. Figure 5 In the example, each sub-pixel unit 111 has 4 LED beads 200, which are close to each other and arranged in a rectangle.

[0042] In one embodiment, the LED beads 200 in each sub-pixel unit 111 may be close together and arranged in a diamond shape.

[0043] It is understandable that the existing LED beads in the modules are mostly arranged in a disordered distribution or a single linear array. The uneven spacing between the LED beads in a single color point leads to color mixing deviation when the light is superimposed. The color point coordinate deviation between the same module or batch modules is high, which affects the uniformity of the overall light effect. By using the LED bead arrangement of 200 in this utility model, four LED beads are arranged in a rectangular or rhomboid shape close together to ensure that the light is evenly superimposed in a single color point. The color point coordinate deviation of batch modules is low, thereby avoiding the uneven light effect caused by color mixing deviation.

[0044] This utility model also provides a pixel-level lighting LED device, which includes the pixel-level lighting LED module 100 as described above.

[0045] Specifically, each pixel-level lighting LED module 100 is connected in series via an input interface 130 or an output interface 140.

[0046] This utility model also provides a lighting system, including the pixel-level lighting LED module 100 as described above.

[0047] Specifically, the lighting system also includes a main control module, which is connected to the input interface 130 of the pixel-level lighting LED module 100, that is, connected to the first interface 121 of the first control module among the multiple control modules 120 connected in series. The main control module is used to send control commands to the pixel-level lighting LED module 100.

[0048] It should be noted that the cascaded control architecture of "main chip (i.e., the main control module mentioned above) - protocol chip (i.e., the control module 120 mentioned above)" enables independent and precise control of a single module (such as adjusting the color point and brightness of a certain module individually) and power supply. With the help of filtering and current limiting design, not only is communication interference filtered out, but the control of LED working current fluctuations is also strengthened, the lifespan of LEDs is extended, and the system reliability is significantly improved.

[0049] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs.

[0050] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A pixel-level lighting LED module, characterized in that, include: A pixel module includes one or more sub-pixel units, each of which is provided with multiple LED beads of different colors; A control module is provided for each pixel module. The control module is electrically connected to the pixel module and is used to control the corresponding pixel module as a pixel light source for illumination based on the received control command. An input interface is electrically connected to the control module. The input interface is used to connect to the output interface of another pixel-level lighting LED module to receive control commands transmitted from the other pixel-level lighting LED module. The output interface is electrically connected to the control module, and the output interface is used to connect to the input interface of another pixel-level lighting LED module to transmit control commands to the other pixel-level lighting LED module.

2. The pixel-level lighting LED module according to claim 1, characterized in that, The control module is provided with a first interface and a second interface. The first interface is used for the control module to receive control commands, and the second interface is used for the control module to output control commands. In the case where the pixel-level lighting LED module is provided with one pixel module, the control module is provided corresponding to the pixel module, the first interface is connected to the input interface, and the second interface is connected to the output interface.

3. The pixel-level lighting LED module according to claim 2, characterized in that, When the pixel-level lighting LED module is provided with multiple pixel modules, the control module is provided with multiple corresponding pixel modules. The first interface is connected to the input interface or the second interface, and the second interface is connected to the output interface or the first interface.

4. The pixel-level lighting LED module according to claim 3, characterized in that, It also includes a current-limiting resistor; In a single pixel module, all the sub-pixel units have LED beads of the same color connected in series, and the LED beads connected in series are connected to the control module after being connected in series with the current limiting resistor; The current-limiting resistor is provided between the first interface and the input interface.

5. The pixel-level lighting LED module according to claim 4, characterized in that, It also includes filter capacitors; The control module is also provided with a third interface. The input interface is also used to power the pixel module and the control module. The input interface is connected to each of the third interfaces and the LED beads connected in series, and the third interface is grounded through the filter capacitor. The current-limiting resistor is provided between the third interface and the input interface.

6. The pixel-level lighting LED module according to claim 1, characterized in that, The color combination method of the LED beads in each sub-pixel unit includes: One red LED, one green LED, one blue LED, and one white LED; One red LED, one green LED, one blue LED, and one yellow LED; One red LED, one green LED, one blue LED, one cyan LED, and one magenta LED; The spectrum formed by the combination of LED beads of different colors is continuous.

7. The pixel-level lighting LED module according to claim 4, characterized in that, The LED beads in each sub-pixel unit are close together and arranged in a rhombus or rectangle.

8. A pixel-level LED lighting device, characterized in that, It includes a pixel-level lighting LED module as described in any one of claims 1 to 7.

9. The pixel-level lighting LED device according to claim 8, characterized in that, It includes multiple pixel-level lighting LED modules, and each pixel-level lighting LED module is connected in series through the input interface or the output interface.

10. A lighting system, characterized in that, Includes a pixel-level lighting LED module as described in any one of claims 1 to 7; The lighting system also includes a main control module, which is connected to the input interface and is used to send control commands to the pixel-level lighting LED module.

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