A shared data lead color Micro-LED device driving structure based on inductor energy storage

Abstract

This invention discloses a driving structure for a color Micro-LED device with shared data leads based on inductor energy storage, comprising: a primary color pixel circuit, row scan leads, column data leads, a P-channel thin-film transistor switch, and an N-channel thin-film transistor switch. The primary color pixel circuit includes two primary color micro-LEDs connected in parallel with opposite electrodes. Each of the two primary color micro-LEDs is connected in series with an energy storage inductor. The primary color pixel circuit is connected to the drain of the P-channel thin-film transistor, and the opposite sides of the primary color pixel circuit are grounded and connected to the drain of the N-channel thin-film transistor switch, respectively. The gate of the P-channel thin-film transistor switch is connected to the row scan leads, and the source of the P-channel thin-film transistor switch is connected to the column data leads. The source and gate of the N-channel thin-film transistor switch are both connected to the row scan leads. This invention simplifies the driving structure while ensuring the quality of light emission imaging.

Description

Technical Field

[0001] This invention relates to the field of optoelectronic displays, and in particular to a driving structure for a color Micro-LED device with shared data leads based on inductor energy storage. Background Technology

[0002] Micro-LED refers to LEDs miniaturized into micrometer-sized (generally below 50μm) LEDs, enabling display arrays with ultra-high pixel density. Micro-LEDs possess self-emissive characteristics. Compared to OLEDs, Micro-LEDs offer easier and more accurate color tuning, longer lifespan, and higher brightness. Furthermore, their smaller, thinner, and lower-cost optical engine size makes them an ideal choice for micro-display applications. Micrometer- or even nanometer-sized LED arrays are the only display devices capable of integrating driving, light emission, and signal transmission into a single high-efficiency, low-power device, achieving ultra-large-scale integration of light-emitting units. They combine the technological advantages of LCD and OLED, offering performance far superior to current Thin Film Transistor (TFT)-LCD (TFT-LCD) or OLED displays, and thus have a wider range of applications.

[0003] The core technology of Micro-LED lies in the transfer and bonding of LED chips at a tiny size. To achieve color display, a massive number of three discrete μLED devices need to be transferred to the same driving substrate. The transfer rate and yield during this process are the technological bottlenecks for the industrialization of Micro-LED. Furthermore, achieving high-resolution Micro-LED displays means more pixels and signal traces, making the driving integrated circuit more complex. Simultaneously, simplifying the driving integrated circuit also requires considering the impact of Micro-LED emission time on the final image quality. Summary of the Invention

[0004] According to the applicant's research, through a special pixel circuit structure and the design of the driving waveform and driving system, two different Micro-LED sub-pixels can share the same data lead. The persistence of vision in the human eye allows the same data lead to drive two Micro-LEDs in a time-division multiplexing manner via sub-frames, without affecting the final mixing effect of the two lights in the human eye. Sharing the data lead undoubtedly greatly reduces the number of data leads and simplifies the structure of the driving integrated circuit. However, because time-division driving is required, the illumination time of a single Micro-LED is shortened, which may potentially affect the subsequent imaging quality.

[0005] In view of the aforementioned deficiencies of the prior art, the technical problem to be solved by the present invention is to provide a shared data lead color Micro-LED device driving structure based on inductor energy storage, which aims to simplify the driving structure while ensuring the quality of light emission imaging.

[0006] To achieve the above objectives, this invention discloses a color Micro-LED device driving structure based on inductor energy storage and shared data leads. The color Micro-LED device driving structure includes: a primary color pixel circuit, row scan leads, column data leads, a P-channel thin-film transistor switch, and an N-channel thin-film transistor switch. The primary color pixel circuit includes two primary color micro-light-emitting diodes connected in parallel with opposite electrodes. Each of the two primary color micro-light-emitting diodes is connected in series with an energy storage inductor. The energy storage inductor is used to maintain the original luminous state of the primary color micro-light-emitting diode connected in series with it, thereby extending the luminous time. The primary color pixel circuit is connected to the drain of the P-channel thin-film transistor. The opposite sides of the primary color pixel circuit... The drain of the N-channel thin-film transistor switch is grounded and connected to the ground; the gate of the P-channel thin-film transistor switch is connected to the row scan lead, which is used to control the selection of the P-channel thin-film transistor switch; the source of the P-channel thin-film transistor switch is connected to the column data lead, which is used to control the brightness of the primary color micro-light-emitting diode in the primary color pixel circuit; the source and gate of the N-channel thin-film transistor switch are both connected to the row scan lead to control the direction of the current released by the energy storage inductor; wherein, the primary color micro-light-emitting diode includes red, green and blue primary color micro-light-emitting diodes, and three adjacent primary color micro-light-emitting diodes of different colors form a light-emitting pixel;

[0007] When the column data leads drive the first primary color micro-LED in the primary color pixel circuit, the first primary color micro-LED is driven to emit light. The second primary color micro-LED in the primary color pixel circuit does not emit light because its electrodes are opposite. At the same time, the first energy storage inductor connected in series with the first primary color micro-LED stores energy. When the primary color pixel circuit ends driving, the corresponding row scan lead ends gating and returns to a low potential, so that the first primary color micro-LED and the first energy storage inductor are at a low potential on both sides. Then, the current released by the first energy storage inductor is affected by the low potential on both sides and passes through the first primary color micro-LED, making it continuously emit light.

[0008] Optionally, the primary color pixel circuit includes a blue-green primary color pixel circuit and a red-red primary color pixel circuit. The two primary color micro-light-emitting diodes in the blue-green primary color pixel circuit are a blue micro-light-emitting diode and a green micro-light-emitting diode, respectively. The two primary color micro-light-emitting diodes in the red-red primary color pixel circuit are both red micro-light-emitting diodes.

[0009] Optionally, the blue micro-LED and the green micro-LED in the blue-green primary color pixel circuit are sub-pixels in the same light-emitting pixel, and the two red micro-LEDs in the red-red primary color pixel circuit are sub-pixels in different light-emitting pixels; the two red micro-LEDs in the red-red primary color pixel circuit are respectively set to the corresponding light-emitting pixel areas by extending leads, so that each light-emitting pixel emits light uniformly.

[0010] Optionally, the primary color pixel circuit includes a red-red primary color pixel circuit, a green-green primary color pixel circuit, and a blue-blue primary color pixel circuit. The two primary color micro-light-emitting diodes in the red-red primary color pixel circuit are both red micro-light-emitting diodes, the two primary color micro-light-emitting diodes in the green-green primary color pixel circuit are both green micro-light-emitting diodes, and the two primary color micro-light-emitting diodes in the blue-blue primary color pixel circuit are both blue micro-light-emitting diodes. The primary color pixel circuits are evenly arranged to ensure that the light-emitting pixels emit light uniformly.

[0011] Optionally, the primary color micro-LEDs further include white micro-LEDs, and the primary color pixel circuit includes a blue-green primary color pixel circuit and a red-white primary color pixel circuit. The two primary color micro-LEDs of the blue-green primary color pixel circuit are a blue micro-LED and a green micro-LED, respectively, and the two primary color micro-LEDs of the red-white primary color pixel circuit are a red micro-LED and a white micro-LED, respectively. Adjacent blue-green primary color pixel circuits and red-white primary color pixel circuits constitute one light-emitting pixel.

[0012] Optionally, the blue-green primary color pixel circuit and the red-white primary color pixel circuit are spaced apart and evenly arranged so that the primary color micro light-emitting diodes in each of the light-emitting pixels are arranged in a consistent manner, thereby making each of the light-emitting pixels emit light evenly.

[0013] The beneficial effects of this invention are as follows: 1. The primary color pixel circuit of this invention includes two primary color micro-light-emitting diodes (LEDs) connected in parallel with opposite electrodes. Each of the two primary color micro-light-emitting diodes is connected in series with an energy storage inductor. The primary color pixel circuit is connected to the drain of a P-type channel thin-film transistor (TFT). The opposite sides of the primary color pixel circuit are grounded and connected to the drain of an N-type channel TFT switch, respectively. The source and gate of the N-type channel TFT switch are both connected to the row scan leads. By connecting two primary color micro-light-emitting diodes with opposite electrodes in parallel, this invention allows voltages in different directions to drive the two primary color micro-light-emitting diodes in a time-division manner, reducing the number of column data leads, simplifying the structure of the driving integrated circuit, and making the structure of the color Micro-LED device thinner or smaller, while reducing costs. 2. This invention also extends the luminous state of the primary color micro-light-emitting diodes by setting the energy storage inductor and the N-type channel TFT switch. The N-channel thin-film transistor switch is configured so that after the horizontal scanning lead ends and the selection resumes at a low potential, both sides of the first primary color micro-LED and the first energy storage inductor are at a low potential. This ensures that the current released by the energy storage inductor passes through the corresponding series-connected primary color micro-LED, rather than the other primary color micro-LED. The energy storage inductor, through charging and discharging, maintains the original luminous state of the series-connected primary color micro-LED, thereby extending the luminous time. This avoids the problem that time-division driving shortens the lighting time of a single Micro-LED, thus affecting the luminous imaging quality. 3. When the primary color pixel circuit of the present invention includes a blue-green primary color pixel circuit and a red-red primary color pixel circuit, the two red micro-LEDs of the red-red primary color pixel circuit are respectively set to the corresponding luminous pixel areas through extended leads. This makes the luminous pixels emit light uniformly, further improving the luminous quality. 4. The primary color pixel circuit of the present invention can include a red-red primary color pixel circuit, a green-green primary color pixel circuit, and a blue-blue primary color pixel circuit. Such a structure is easier to arrange uniformly, resulting in uniform luminous emission. 5. The primary color micro-light-emitting diode of this invention also includes a white micro-light-emitting diode. By adding a white micro-light-emitting diode, the contrast is increased, and the light-emitting quality is improved. 6. The blue and green micro-light-emitting diodes of this invention share a single column data lead. Both belong to the InGaN material system. Although their photoelectric properties are not completely identical, they are similar. Their turn-on voltage is between 2.5-3V. Through the design of the driving waveform and driving system, different turn-on voltages can be achieved. This design makes the driving voltage switching easier and the driving process simpler.

[0014] In summary, this invention simplifies the driving structure while ensuring the quality of light emission imaging, making the structure of the color Micro-LED device smaller and thinner, and allowing more Micro-LEDs to be accommodated in the same volume, thereby further improving the resolution. Attached Figure Description

[0015] Figure 1This is a schematic diagram of a shared data lead color Micro-LED device driving structure based on inductor energy storage according to a specific embodiment of the present invention;

[0016] Figure 2 This is a driving waveform diagram of the driving voltage provided in a specific embodiment of the present invention.

[0017] Figure 3 This is a schematic diagram of a shared data lead color Micro-LED device driving structure based on inductor energy storage provided in the first specific embodiment of the present invention;

[0018] Figure 4 This is a schematic diagram of a shared data lead color Micro-LED device driving structure based on inductor energy storage provided in the second specific embodiment of the present invention;

[0019] Figure 5 This is a schematic diagram of a shared data lead color Micro-LED device driving structure based on inductor energy storage provided in the third specific embodiment of the present invention;

[0020] Figure 6 This is a schematic diagram of a shared data lead color Micro-LED device driving structure based on inductor energy storage provided in the fourth specific embodiment of the present invention. Detailed Implementation

[0021] This invention discloses a driving method for a shared data lead color Micro-LED device driving structure based on inductor energy storage. Those skilled in the art can refer to the content of this document and appropriately modify the technical details to implement it. It should be particularly noted that all similar substitutions and modifications are obvious to those skilled in the art and are considered to be included in this invention. The methods and applications of this invention have been described through preferred embodiments. Those skilled in the art can obviously make modifications or appropriate changes and combinations to the methods and applications described herein without departing from the content, spirit, and scope of this invention to implement and apply the technology of this invention.

[0022] According to the applicant's research, through a special pixel circuit structure and the design of the driving waveform and driving system, two different Micro-LED sub-pixels can share the same data lead. The persistence of vision in the human eye allows the same data lead to drive two Micro-LEDs in a time-division multiplexing manner via sub-frames, without affecting the final mixed light effect in the human eye. Sharing a data lead undoubtedly greatly reduces the number of data leads and simplifies the structure of the driving integrated circuit. However, because time-division driving is required, the illumination time of a single Micro-LED is shortened, which may affect the subsequent imaging quality. Energy storage electronic devices, such as capacitors and inductors, can extend the illumination time; however, if inductors are used, it is difficult to control the direction of the release current, which may result in both shared sub-pixels illuminating simultaneously.

[0023] Therefore, embodiments of the present invention provide a driving structure for a color Micro-LED device with shared data leads based on inductor energy storage, such as... Figure 1 As shown, the color Micro-LED device driving structure includes: a primary color pixel circuit 101, row scan leads 102, column data leads 103, a P-channel thin-film transistor switch 104, and an N-channel thin-film transistor switch 105. The primary color pixel circuit 101 includes two primary color micro-light-emitting diodes 106 connected in parallel with opposite electrodes. Each of the two primary color micro-light-emitting diodes 106 is connected in series with an energy storage inductor 107. The energy storage inductor 107 is used to maintain the original light-emitting state of the primary color micro-light-emitting diode 106 connected in series with it, thereby prolonging the light-emitting time. The primary color pixel circuit 101 is connected to the drain of the P-channel thin-film transistor. The opposite sides of the color pixel circuit 101 are grounded and connected to the drain of the N-channel thin-film transistor switch 105, respectively; the gate of the P-channel thin-film transistor switch 104 is connected to the row scan lead 102, which is used to control the selection of the P-channel thin-film transistor switch 104; the source of the P-channel thin-film transistor switch 104 is connected to the column data lead 103, which is used to control the brightness of the primary color micro-light-emitting diode 106 in the primary color pixel circuit 101; the source and gate of the N-channel thin-film transistor switch 105 are both connected to the row scan lead 102 to control the direction of the current released by the energy storage inductor 107.

[0024] The primary color micro-light-emitting diodes 106 include red, green, and blue primary color micro-light-emitting diodes 106. Three adjacent primary color micro-light-emitting diodes 106 of different colors form a light-emitting pixel. The opposite sides of the primary color pixel circuit 101 are grounded and connected to the drain of the N-channel thin-film transistor switch 105, respectively. Figure 1 As shown, they are located on the middle two sides of the two color micro-light-emitting diodes 106 respectively.

[0025] When the column data lead 103 drives the first primary color micro LED in the primary color pixel circuit 101, the first primary color micro LED is driven to emit light. The second primary color micro LED in the primary color pixel circuit 101 does not emit light because its electrodes are opposite. At the same time, the first energy storage inductor connected in series with the first primary color micro LED stores energy. When the primary color pixel circuit 101 ends driving, its corresponding row scan lead 102 ends gating and returns to a low potential, so that the first primary color micro LED and the first energy storage inductor are at a low potential on both sides. As a result, the current released by the first energy storage inductor is affected by the low potential on both sides and passes through the first primary color micro LED, causing it to continue to emit light.

[0026] It should be noted that the P-channel thin-film transistor switch 104 has holes (positive charge carriers) in its channel, requiring a positive voltage relative to the gate to turn on (i.e., to form the channel and allow current to flow). The N-channel thin-film transistor switch 105 has electrons (negative charge carriers) in its channel, requiring a negative voltage relative to the gate to turn on. Setting both sides of the first primary color micro-LED and the first energy storage inductor to a low potential refers to both sides of these two components as a whole. For example, if the first primary color micro-LED and the first energy storage inductor are located on the left and right sides respectively, then both sides refer to, for example, the left side of the first primary color micro-LED and the right side of the first energy storage inductor.

[0027] In this specific embodiment, when both primary color micro-light-emitting diodes 106 in the same primary color pixel circuit 101 need to be driven, different driving voltages are required because the electrodes of the two primary color micro-light-emitting diodes 106 are opposite. That is, if the first primary color micro-light-emitting diode requires a positive driving voltage, then the second primary color micro-light-emitting diode located in the same primary color pixel circuit 101 requires a negative driving voltage. The driving waveform can be as follows: Figure 2 As shown, Figure 2In this context, t represents the time interval from the first selection of the primary color pixel circuit 101 to provide a driving voltage for the first primary color micro-LED to the second selection of the primary color pixel circuit 101 to provide a driving voltage for the second primary color micro-LED (i.e., the time required to scan the corresponding primary color pixel circuit 101). When the first primary color micro-LED is driven to emit light by a positive voltage, the first energy storage inductor connected in series with the first primary color micro-LED stores energy. When the positive voltage stops driving, the horizontal scan line also ends selection and returns to a low potential. Since the source and gate of the N-channel thin-film transistor switch 105 are both connected to the horizontal scan lead 102, and the drain of the N-channel thin-film transistor switch 105 is connected to one side of the primary color pixel circuit 101, while the other side of the primary color pixel circuit 101 is grounded and provides a low voltage, when the first energy storage inductor discharges, the current will flow through the first primary color micro-LED due to the influence of the low potential on both sides, causing it to continue emitting light. During this process, the second energy storage inductor, connected in series with the second primary color micro-LED, initially draws zero current through the second primary color micro-LED due to its inductive characteristics. The current gradually increases, but throughout the entire discharge process of the first energy storage inductor, the current flowing through the second primary color micro-LED remains less than the current required for it to emit light. Similarly, when the second primary color micro-LED is driven to emit light by a negative voltage, its emission time increases, while the first primary color micro-LED remains off.

[0028] This embodiment of the invention ensures that the emission duration meets image quality requirements while reducing data leads.

[0029] In the first specific embodiment, the primary color pixel circuit 101 includes a blue-green primary color pixel circuit 101 and a red-red primary color pixel circuit 101. The two primary color micro light-emitting diodes 106 of the blue-green primary color pixel circuit 101 are a blue micro light-emitting diode and a green micro light-emitting diode, respectively. The two primary color micro light-emitting diodes 106 of the red-red primary color pixel circuit 101 are both red micro light-emitting diodes.

[0030] The color Micro-LED device structure corresponding to the first specific embodiment can be as follows: Figure 3 As shown. Figure 3 In the diagram, the colors of each primary color micro-light-emitting diode 106 are marked, with 301 and 302 each representing a light-emitting pixel.

[0031] It should be noted that the blue and green micro-LEDs share a single data lead because they both belong to the InGaN material system. Although their photoelectric properties are not exactly the same, they are similar, with a turn-on voltage between 2.5-3V. Different turn-on voltages can be achieved through the design of the driving waveform and driving system. This design makes the driving voltage switching easier and the driving process simpler.

[0032] Furthermore, in the second specific embodiment, as Figure 4 As shown, the blue micro-LEDs and green micro-LEDs in the blue-green primary color pixel circuit 101 are sub-pixels in the same light-emitting pixel, and the two red micro-LEDs in the red-red primary color pixel circuit 101 are sub-pixels in different light-emitting pixels; the two red micro-LEDs in the red-red primary color pixel circuit 101 are respectively set to the corresponding light-emitting pixel areas through extended leads, so that each light-emitting pixel emits light uniformly. Figure 4 In the diagram, the colors of each primary color micro-light-emitting diode 106 are marked, with 401 and 402 each representing a light-emitting pixel.

[0033] It should be noted that, compared to the first embodiment, the color arrangement of the three primary color micro-light-emitting diodes 106 in each light-emitting pixel in the second embodiment is the same, resulting in more uniform light emission and higher final image quality.

[0034] In the third specific embodiment, such as Figure 5 As shown, the primary color pixel circuit 101 includes a red-red primary color pixel circuit 101, a green-green primary color pixel circuit 101, and a blue-blue primary color pixel circuit 101. The two primary color micro-light-emitting diodes 106 of the red-red primary color pixel circuit 101 are both red micro-light-emitting diodes, the two primary color micro-light-emitting diodes 106 of the green-green primary color pixel circuit 101 are both green micro-light-emitting diodes, and the two primary color micro-light-emitting diodes 106 of the blue-blue primary color pixel circuit 101 are both blue micro-light-emitting diodes. The primary color pixel circuits 101 are evenly arranged to ensure that the light-emitting pixels emit light evenly. Figure 5 In the diagram, the colors of each primary color micro-light-emitting diode 106 are marked, with 501 and 502 each representing a light-emitting pixel.

[0035] It should be noted that the third specific embodiment achieves uniform sequential arrangement without the need for extended leads, improving light emission uniformity and imaging quality. The primary color micro-light-emitting diodes 106 of the same color are made of the same material, have consistent photoelectric characteristics, consistent turn-on voltage, and convenient driving voltage switching, making them more easily driven.

[0036] In the fourth specific embodiment, such as Figure 6As shown, the primary color micro LED 106 also includes a white micro LED. The primary color pixel circuit 101 includes a blue-green primary color pixel circuit 101 and a red-white primary color pixel circuit 101. The two primary color micro LEDs 106 of the blue-green primary color pixel circuit 101 are a blue micro LED and a green micro LED, respectively. The two primary color micro LEDs 106 of the red-white primary color pixel circuit 101 are a red micro LED and a white micro LED, respectively. Adjacent blue-green primary color pixel circuits 101 and red-white primary color pixel circuits 101 constitute a light-emitting pixel. Figure 6 In the diagram, the colors of each primary color micro-LED 106 are marked, with 601 representing one light-emitting pixel.

[0037] It should be noted that adding white micro-light-emitting diodes can increase the contrast of the light-emitting pixels and improve image quality.

[0038] Furthermore, the blue-green primary color pixel circuit 101 and the red-white primary color pixel circuit 101 are spaced apart and evenly arranged so that the primary color micro light-emitting diodes 106 in each light-emitting pixel are arranged in a consistent manner, thereby making each light-emitting pixel emit light evenly.

[0039] The primary color pixel circuit 101 of this invention includes two primary color micro-light-emitting diodes 106 connected in parallel with opposite electrodes. Each of the two primary color micro-light-emitting diodes 106 is connected in series with an energy storage inductor 107. The primary color pixel circuit 101 is connected to the drain of a P-type channel thin-film transistor. The opposite sides of the primary color pixel circuit 101 are grounded and connected to the drain of an N-type channel thin-film transistor switch 105, respectively. The source and gate of the N-type channel thin-film transistor switch 105 are both connected to the row scan lead 102. By connecting two primary color micro-light-emitting diodes 106 with opposite electrodes in parallel, this invention allows voltages in different directions to drive the two primary color micro-light-emitting diodes 106 in a time-division manner, reducing the number of column data leads 103, simplifying the driver integrated circuit structure, and making the structure of the color Micro-LED device thinner or smaller, while reducing costs.

[0040] This embodiment of the invention further extends the luminous state of the primary color micro-LED 106 by configuring an energy storage inductor 107 and an N-channel thin-film transistor switch 105. The N-channel thin-film transistor switch 105 is configured so that after the row scan lead 102 finishes gating and returns to a low potential, both sides of the first primary color micro-LED and the first energy storage inductor are at a low potential. This ensures that the current released by the energy storage inductor 107 passes through the corresponding series-connected primary color micro-LED 106, rather than another primary color micro-LED 106. The energy storage inductor 107, through charging and discharging, maintains the original luminous state of the series-connected primary color micro-LED 106, thereby extending the luminous time. This avoids the problem of time-division driving shortening the lighting time of a single Micro-LED, thus affecting the quality of luminous imaging.

[0041] When the primary color pixel circuit 101 of the present invention includes a blue-green primary color pixel circuit 101 and a red-red primary color pixel circuit 101, the two red micro light-emitting diodes of the red-red primary color pixel circuit 101 are respectively set to the corresponding light-emitting pixel areas through extended leads, so that each light-emitting pixel emits light uniformly and further improves the light-emitting quality.

[0042] The primary color pixel circuit 101 in this embodiment of the invention may include a red-red primary color pixel circuit 101, a green-green primary color pixel circuit 101, and a blue-blue primary color pixel circuit 101. Such a structure is easier to arrange evenly, so that the light emission is uniform.

[0043] The primary color micro light-emitting diode 106 in this embodiment of the invention also includes a white micro light-emitting diode. By adding the white micro light-emitting diode, the contrast is increased and the light emission quality is improved.

[0044] In this embodiment of the invention, the blue and green micro-light-emitting diodes share a single column data lead 103. Both belong to the InGaN material system, and although their photoelectric properties are not exactly the same, they are similar. Their turn-on voltage is between 2.5-3V. By designing the driving waveform and driving system, different turn-on voltages can be achieved. This design makes it easier to switch the driving voltage and simplifies the driving process.

[0045] In summary, the embodiments of the present invention simplify the driving structure while ensuring the quality of light emission imaging, making the structure of the color Micro-LED device smaller and thinner, and allowing more Micro-LEDs to be accommodated in the same volume, thereby further improving the resolution.

[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0047] The various embodiments in this specification are described in a related manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions of the method embodiments.

[0048] The above are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention are included within the scope of protection of the present invention.

Claims

1. A driving structure for a shared data lead color Micro-LED device based on inductor energy storage, characterized in that, The color Micro-LED device driving structure includes: a primary color pixel circuit, row scan leads, column data leads, a P-channel thin-film transistor switch, and an N-channel thin-film transistor switch. The primary color pixel circuit includes two primary color micro-light-emitting diodes connected in parallel with opposite electrodes. Each of the two primary color micro-light-emitting diodes is connected in series with an energy storage inductor. The energy storage inductor is used to maintain the original luminous state of the primary color micro-light-emitting diode connected in series with it, thereby extending the luminous time. The primary color pixel circuit is connected to the drain of the P-channel thin-film transistor. The opposite sides of the primary color pixel circuit are grounded and connected to the drain of the N-channel thin-film transistor switch, respectively. The gate of the P-channel thin-film transistor switch is connected to the row scan lead, which controls the selection of the P-channel thin-film transistor switch. The source of the P-channel thin-film transistor switch is connected to the column data lead, which controls the brightness of the primary color micro-light-emitting diode in the primary color pixel circuit. The source and gate of the N-channel thin-film transistor switch are both connected to the row scan lead to control the direction of the current released by the energy storage inductor. The primary color micro-light-emitting diode includes red, green, and blue primary color micro-light-emitting diodes, and three adjacent primary color micro-light-emitting diodes of different colors form a light-emitting pixel. When the column data leads drive the first primary color micro-LED in the primary color pixel circuit, the first primary color micro-LED is driven to emit light. The second primary color micro-LED in the primary color pixel circuit does not emit light because its electrodes are opposite. At the same time, the first energy storage inductor connected in series with the first primary color micro-LED stores energy. When the primary color pixel circuit ends driving, the corresponding row scan lead ends gating and returns to a low potential, so that the first primary color micro-LED and the first energy storage inductor are at a low potential on both sides. Then, the current released by the first energy storage inductor is affected by the low potential on both sides and passes through the first primary color micro-LED, making it continuously emit light.

2. The driving structure for a shared data lead color Micro-LED device based on inductor energy storage according to claim 1, characterized in that, The primary color pixel circuit includes a blue-green primary color pixel circuit and a red-red primary color pixel circuit. The two primary color micro-light-emitting diodes in the blue-green primary color pixel circuit are a blue micro-light-emitting diode and a green micro-light-emitting diode, respectively. The two primary color micro-light-emitting diodes in the red-red primary color pixel circuit are both red micro-light-emitting diodes.

3. The driving structure for a shared data lead color Micro-LED device based on inductor energy storage according to claim 2, characterized in that, The blue and green micro-light-emitting diodes in the blue-green primary color pixel circuit are sub-pixels in the same light-emitting pixel, and the two red micro-light-emitting diodes in the red-red primary color pixel circuit are sub-pixels in different light-emitting pixels; the two red micro-light-emitting diodes in the red-red primary color pixel circuit are respectively set to the corresponding pixel areas of the corresponding light-emitting pixels through extended leads, so that each light-emitting pixel emits light uniformly.

4. The shared data lead color Micro-LED device driving structure based on inductor energy storage according to claim 1, characterized in that, The primary color pixel circuit includes a red-red primary color pixel circuit, a green-green primary color pixel circuit, and a blue-blue primary color pixel circuit. The two primary color micro-light-emitting diodes in the red-red primary color pixel circuit are both red micro-light-emitting diodes, the two primary color micro-light-emitting diodes in the green-green primary color pixel circuit are both green micro-light-emitting diodes, and the two primary color micro-light-emitting diodes in the blue-blue primary color pixel circuit are both blue micro-light-emitting diodes. The primary color pixel circuits are evenly arranged to ensure that the light-emitting pixels emit light uniformly.

5. The driving structure for a shared data lead color Micro-LED device based on inductor energy storage according to claim 1, characterized in that, The primary color micro-LEDs also include white micro-LEDs. The primary color pixel circuit includes a blue-green primary color pixel circuit and a red-white primary color pixel circuit. The two primary color micro-LEDs in the blue-green primary color pixel circuit are a blue micro-LED and a green micro-LED. The two primary color micro-LEDs in the red-white primary color pixel circuit are a red micro-LED and a white micro-LED. Adjacent blue-green primary color pixel circuits and red-white primary color pixel circuits constitute one light-emitting pixel.

6. The shared data lead color Micro-LED device driving structure based on inductor energy storage according to claim 5, characterized in that, The blue-green primary color pixel circuit and the red-white primary color pixel circuit are spaced apart and evenly arranged so that the primary color micro light-emitting diodes in each of the light-emitting pixels are arranged in a consistent manner, thereby making each of the light-emitting pixels emit light evenly.

Images