Data lead sharing color Micro-LED device driving structure based on inductance energy storage

Abstract

The invention discloses a common data lead color Micro-LED device driving structure based on inductance energy storage. The common data lead color Micro-LED device driving structure comprises a primary color pixel circuit, a row scanning lead, a column data lead, a P-type channel thin film transistor switch and an N-type channel thin film transistor switch. The primary color pixel circuit comprises two primary color micro light-emitting diodes which are mutually connected in parallel and have opposite electrodes, the two primary color micro light-emitting diodes are respectively connected in series with an energy storage inductor, the primary color pixel circuit is connected with a drain electrode of the P-type channel thin film transistor, and the opposite sides of the primary color pixel circuit are respectively grounded and connected with a drain electrode of the N-type channel thin film transistor switch; the grid electrode of the P-type channel thin film transistor switch is connected with the row scanning lead, and the source electrode of the P-type channel thin film transistor switch is connected with the column data lead; the source electrode and the grid electrode of the N-type channel thin film transistor switch are connected to the line scanning lead. According to the invention, the driving structure is simplified while the light-emitting imaging quality is ensured.

Description

Technical Field

[0001] The present invention relates to the field of optoelectronic display, and in particular to a common data lead color Micro-LED device driving structure based on inductive energy storage. Background Art

[0002] Micro-LED refers to LEDs that are micron-sized (generally less than 50μm) by miniaturizing traditional LEDs. They can realize display arrays with ultra-high density pixel resolution. Micro-LEDs have the characteristics of self-luminescence. Compared with OLEDs, Micro-LED colors are easier to accurately adjust, have longer luminous life and higher brightness, and are small, thin and light-weight with low cost, making Micro-LEDs an ideal choice for micro-display applications. Micron-level or even nano-level LED arrays are the only high-efficiency, low-power devices that can integrate driving, luminescence, and signal transmission, and realize ultra-large-scale integrated light-emitting units. They combine the two major technical features of LCD and OLED, and their product performance is much higher than the current thin film transistor (TFT)-LCD (TFT-LCD) or OLED, and their application areas are also more extensive.

[0003] The core technology of Micro-LED lies in the transfer and bonding of LED chips at a tiny size. At the same time, in order to achieve color display, a huge amount of three discrete μLED devices need to be transferred to the same driver substrate. The transfer rate and yield during the transfer process are the technical bottlenecks for the industrialization of Micro-LED. At the same time, in order to achieve high-resolution Micro-LED display, it means more pixels and signal routing design, making the driver integrated circuit more complicated. At the same time, when simplifying the driver integrated circuit, it is also necessary to consider the impact of Micro-LED light emission time on the final image quality. Summary of the invention

[0004] According to the applicant's research: through the 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. Due to the persistence of vision effect of the human eye, the same data lead can drive two Micro-LEDs in a time-sharing manner through a sub-frame without affecting the effect of the two lights after they are finally mixed in the human eye. Sharing data leads can undoubtedly greatly reduce the number of data leads and simplify the structure of the driving integrated circuit. However, due to the need for time-sharing driving, the lighting time of a single Micro-LED becomes shorter, which is likely to affect the subsequent imaging quality.

[0005] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide a common data lead color Micro-LED device driving structure based on inductive energy storage, aiming to simplify the driving structure while ensuring the quality of luminous imaging.

[0006] To achieve the above-mentioned purpose, the present invention discloses a common data lead color Micro-LED device driving structure based on inductor energy storage, the color Micro-LED device driving structure comprising: a primary color pixel circuit, a row scanning lead, a column data lead, a P-type channel thin film transistor switch and an N-type channel thin film transistor switch; the primary color pixel circuit comprises 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 light-emitting state of the primary color micro-light emitting diode connected in series with it, thereby prolonging the light-emitting time, the primary color pixel circuit is connected to the drain of the P-type channel thin film transistor, and the opposite side of the primary color pixel circuit The drain of the N-type channel thin film transistor switch is grounded and connected respectively; the gate of the P-type channel thin film transistor switch is connected to the row scanning lead, the row scanning lead is used to control the gating of the P-type channel thin film transistor switch, the source of the P-type channel thin film transistor switch is connected to the column data lead, the column data lead 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-type channel thin film transistor switch are both connected to the row scanning lead, which is used 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 constitute a light-emitting pixel;

[0007] When the column data lead drives the first primary color micro-LED in the primary color pixel circuit, the first primary color micro-LED is driven to emit light, and the second primary color micro-LED in the primary color pixel circuit does not emit light due to opposite electrodes. 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 scanning lead ends selection and restores the low potential, so that the first primary color micro-LED and both sides of the first energy storage inductor are at a low potential, and 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 to make it continue to 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-LEDs of the blue-green primary color pixel circuit are respectively a blue micro-LED and a green micro-LED, and the two primary color micro-LEDs of the red-red primary color pixel circuit are both red micro-LEDs.

[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 arranged in the corresponding light-emitting pixel areas through extended leads to make each of the light-emitting pixels emit light evenly.

[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-LEDs of the red-red primary color pixel circuit are both red micro-LEDs, the two primary color micro-LEDs of the green-green primary color pixel circuit are both green micro-LEDs, and the two primary color micro-LEDs of the blue-blue primary color pixel circuit are both blue micro-LEDs; the primary color pixel circuits are evenly arranged so that the light-emitting pixels emit light evenly.

[0011] Optionally, the primary color micro-LED also includes a white micro-LED, 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 respectively a blue micro-LED and a green micro-LED, and the two primary color micro-LEDs of the red-white primary color pixel circuit are respectively a red micro-LED and a white micro-LED, and the adjacent blue-green primary color pixel circuit and the red-white primary color pixel circuit constitute a light-emitting pixel.

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

[0013] Beneficial effects of the present invention: 1. The primary color pixel circuit of the present invention 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 primary color pixel circuit is connected to the drain of the P-type channel thin film transistor, and the opposite sides of the primary color pixel circuit are grounded and connected to the drain of the N-type channel thin film transistor switch respectively; the source and gate of the N-type channel thin film transistor switch are both connected to the row scanning lead. By connecting two primary color micro-light emitting diodes with opposite electrodes in parallel, the present invention can drive the two primary color micro-light emitting diodes in a time-sharing manner with voltages in different directions, thereby reducing the number of column data leads, simplifying the driving integrated circuit structure, and making the structure of the color Micro-LED device structure thinner or more compact, while reducing costs. 2. The present invention also extends the light-emitting state of the primary color micro-light emitting diode by setting an energy storage inductor and an N-type channel thin film transistor switch. The N-type channel thin film transistor switch is set to make the first primary color micro-light emitting diode and the two sides of the first energy storage inductor at a low potential after the row scanning lead ends the gating and restores the low potential, ensuring that the current released by the energy storage inductor passes through the corresponding primary color micro-light emitting diode in series, rather than another primary color micro-light emitting diode; the energy storage inductor maintains the original light-emitting state of the primary color micro-light emitting diode in series with it through charging and discharging, thereby extending the light-emitting time. This avoids the problem that the time-sharing drive shortens the lighting time of a single Micro-LED, thereby affecting the quality of light-emitting imaging. 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-light emitting diodes of the red-red primary color pixel circuit are respectively set to the corresponding light-emitting pixel area through the extension lead, so that each light-emitting pixel can emit light evenly, further improving the light-emitting 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 evenly, so that the light is even. 5. The primary color micro-LED of the present invention also includes a white micro-LED. By adding the white micro-LED, the contrast is increased and the light quality is improved. 6. The blue micro-LED and the green micro-LED of the present invention share a column data lead. Both belong to the InGaN material system. Although the photoelectric properties are not completely consistent, they are similar. Their turn-on voltage is between 2.5-3V. Different turn-on voltages can be achieved by designing the driving waveform and the driving system. Such a design can make the driving voltage flip easier and the driving simpler.

[0014] In summary, the present invention simplifies the driving structure while ensuring the quality of luminous imaging, so that the color Micro-LED device structure is smaller, lighter and thinner, and more Micro-LEDs can be accommodated in the same volume, further improving the resolution. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1It is a structural schematic diagram of a common data lead color Micro-LED device driving structure based on inductive energy storage provided by a specific embodiment of the present invention;

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

[0017] Figure 3 It is a structural schematic diagram of a common data lead color Micro-LED device driving structure based on inductive energy storage provided by the first specific embodiment of the present invention;

[0018] Figure 4 It is a structural schematic diagram of a common data lead color Micro-LED device driving structure based on inductive energy storage provided by a second specific embodiment of the present invention;

[0019] Figure 5 It is a structural schematic diagram of a common data lead color Micro-LED device driving structure based on inductive energy storage provided by the third specific embodiment of the present invention;

[0020] Figure 6 It is a structural schematic diagram of a common data lead color Micro-LED device driving structure based on inductive energy storage provided in the fourth specific embodiment of the present invention. DETAILED DESCRIPTION

[0021] The present invention discloses a driving method for a common data lead color Micro-LED device driving structure based on inductive energy storage. Those skilled in the art can refer to the content of this article and appropriately improve the technical details. It should be pointed out in particular that all similar substitutions and modifications are obvious to those skilled in the art, and they are all considered to be included in the present invention. The method and application of the present invention have been described through preferred embodiments, and relevant personnel can obviously modify or appropriately change and combine the methods and applications described herein without departing from the content, spirit and scope of the present invention to implement and apply the technology of the present invention.

[0022] According to the applicant's research: Through the 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. Due to the persistence of vision effect of the human eye, the same data lead can drive two Micro-LEDs in a time-sharing manner through a sub-frame method without affecting the effect of the two lights finally mixed in the human eye. Sharing data leads can undoubtedly greatly reduce the number of data leads and simplify the structure of the driving integrated circuit. However, due to the need for time-sharing driving, the lighting time of a single Micro-LED becomes shorter, which is likely to affect the subsequent imaging quality. The luminescence time can be extended by using energy storage electronic devices such as capacitors and inductors, but if an inductor is used, it is not easy to control the direction of the released current, and the two shared sub-pixels may both emit light.

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

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

[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, and the second primary color micro-LED in the primary color pixel circuit 101 does not emit light due to opposite electrodes. 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 scanning lead 102 ends selection and restores the low potential, so that the first primary color micro-LED and both sides of the first energy storage inductor are at a low potential, and 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 to make it continue to emit light.

[0026] It should be noted that the carriers in the channel of the P-channel thin film transistor switch 104 are holes (positive charge carriers), and it requires a positive voltage relative to the gate to turn on (i.e., to form a channel and allow current to pass). The carriers in the channel of the N-channel thin film transistor switch 105 are electrons (negative charge carriers), and it requires a negative voltage relative to the gate to turn on. The two sides of the first primary color micro-light emitting diode and the first energy storage inductor are made to be at a low potential, which refers to the two sides of the two parts as a whole, for example, the first primary color micro-light emitting diode and the first energy storage inductor are respectively located on the left and right, and the two sides refer to, for example, the left side of the first primary color micro-light emitting diode and the right side of the first energy storage inductor.

[0027] In this specific embodiment, when two primary color micro-LEDs 106 in the same primary color pixel circuit 101 need to be driven, because the electrodes of the two primary color micro-LEDs 106 are opposite, they need driving voltages in different directions. That is, if the first primary color micro-LED needs a positive driving voltage, the second primary color micro-LED in the same primary color pixel circuit 101 needs a negative driving voltage. The driving waveform can be as follows: Figure 2 As shown, Figure 2Where t is the time interval from the first time the primary color pixel circuit 101 is selected to provide a driving voltage to the second time the primary color pixel circuit 101 is selected to provide a driving voltage to the second primary color micro-light-emitting diode (i.e., the time required to scan the corresponding primary color pixel circuit 101). When the first primary color micro-light-emitting diode is driven by the forward voltage to emit light, the first energy storage inductor connected in series with the first primary color micro-light-emitting diode stores energy. When the forward voltage stops driving, the row scan line will also end the selection and restore the low potential. Because the source and gate of the N-type channel thin film transistor switch 105 are connected to the row scan lead 102, the drain of the N-type channel thin film transistor switch 105 is connected to one side of the primary color pixel circuit 101, and the other side of the primary color pixel circuit 101 is grounded to provide a low voltage. Therefore, when the first energy storage inductor is discharged, the current will pass through the first primary color micro-light-emitting diode due to the influence of the low potential on both sides to make it continue to emit light. In this process, the second energy storage inductor connected in series with the second primary color micro-LED will initially make the current passing through the second primary color micro-LED zero due to its inductance characteristics, and then slowly increase. However, during the entire discharge process of the first energy storage inductor, the current passing through the second primary color micro-LED is smaller than the current required for the second primary color micro-LED to emit light. Similarly, when the second primary color micro-LED is driven to emit light by a negative voltage, the second primary color micro-LED will increase its light emission time, and the first primary color micro-LED will remain off.

[0028] In this way, the embodiment of the present invention can ensure that the light-emitting duration meets the image quality requirements and reduce 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-LEDs 106 of the blue-green primary color pixel circuit 101 are respectively a blue micro-LED and a green micro-LED, and the two primary color micro-LEDs 106 of the red-red primary color pixel circuit 101 are both red micro-LEDs.

[0030] The color Micro-LED device structure corresponding to the first specific embodiment can be as follows Figure 3 shown. Figure 3 In the figure, the colors of the primary color micro-LEDs 106 are marked, and 301 and 302 represent a light-emitting pixel respectively.

[0031] It should be noted that the blue micro-LED and the green micro-LED share a data lead because they both belong to the same InGaN material system. Although their photoelectric properties are not completely the same, they are similar. Their turn-on voltage is between 2.5-3V. Different turn-on voltages can be achieved through the design of the drive waveform and the drive system. Such a design makes it easier to flip the drive voltage and simpler to drive.

[0032] Further, in the second specific embodiment, if Figure 4 As shown, the blue micro-LED and the green micro-LED 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 arranged in the corresponding light-emitting pixel areas through extended leads to make each light-emitting pixel emit light evenly. Figure 4 In the figure, the colors of the primary color micro-LEDs 106 are marked, and 401 and 402 represent a light-emitting pixel respectively.

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

[0034] In the third specific embodiment, 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-LEDs 106 of the red-red primary color pixel circuit 101 are both red micro-LEDs, the two primary color micro-LEDs 106 of the green-green primary color pixel circuit 101 are both green micro-LEDs, and the two primary color micro-LEDs 106 of the blue-blue primary color pixel circuit 101 are both blue micro-LEDs; the primary color pixel circuits 101 are evenly arranged so that each light-emitting pixel emits light evenly. Figure 5 In the figure, the colors of the primary color micro-LEDs 106 are marked, and 501 and 502 represent a light-emitting pixel respectively.

[0035] It should be noted that the structure of the third specific embodiment can achieve uniform sequential arrangement without lengthening the lead wire, improve the uniformity of light emission, and improve the imaging quality. The primary color micro-LEDs 106 of the same color are made of the same material, have consistent photoelectric characteristics, consistent turn-on voltage, and are easy to flip the driving voltage, making them more single-drive.

[0036] In the fourth specific embodiment, Figure 6As shown, the primary color micro-LEDs 106 also include white micro-LEDs, 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 respectively a blue micro-LED and a green micro-LED, the two primary color micro-LEDs 106 of the red-white primary color pixel circuit 101 are respectively a red micro-LED and a white micro-LED, and the adjacent blue-green primary color pixel circuit 101 and red-white primary color pixel circuit 101 constitute a light-emitting pixel. Figure 6 In the figure, the colors of the primary color micro-LEDs 106 are marked, and 601 represents a light-emitting pixel.

[0037] It should be noted that by adding white micro-LEDs, the contrast of the luminous pixels can be increased and the imaging quality can be improved.

[0038] Furthermore, the blue-green primary color pixel circuits 101 and the red-white primary color pixel circuits 101 are arranged at intervals and evenly, so that the primary color micro-LEDs 106 in each luminous pixel are arranged uniformly, thereby making each luminous pixel emit light evenly.

[0039] The primary color pixel circuit 101 described in the embodiment of the present invention includes two primary color micro-LEDs 106 connected in parallel and with opposite electrodes, each of the two primary color micro-LEDs 106 is connected in series with an energy storage inductor 107, the primary color pixel circuit 101 is connected to the drain of the P-type channel thin film transistor, and the opposite sides of the primary color pixel circuit 101 are grounded and connected to the drain of the 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 scanning lead 102. By connecting two primary color micro-LEDs 106 with opposite electrodes in parallel, the embodiment of the present invention can make the two primary color micro-LEDs 106 driven in time by voltages in different directions, reduce the number of column data leads 103, simplify the structure of the driving integrated circuit, and make the structure of the color Micro-LED device structure thinner or more compact, while reducing the cost.

[0040] The embodiment of the present invention also prolongs the luminous state of the primary color micro-LED 106 by setting the energy storage inductor 107 and the N-type channel thin film transistor switch 105. The N-type channel thin film transistor switch 105 is set to make the first primary color micro-LED and both sides of the first energy storage inductor at a low potential after the row scanning lead 102 ends the selection and restores the low potential, ensuring that the current released by the energy storage inductor 107 passes through the corresponding primary color micro-LED 106 connected in series, rather than another primary color micro-LED 106; the energy storage inductor 107 maintains the original luminous state of the primary color micro-LED 106 connected in series with it through charging and discharging, thereby prolonging the luminous time. This avoids the problem that the time-sharing drive shortens the lighting time of a single Micro-LED, thereby affecting the quality of luminous imaging.

[0041] When the primary color pixel circuit 101 of the embodiment 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 arranged in the corresponding light-emitting pixel areas through extended leads, so that each light-emitting pixel can emit light evenly, further improving the light-emitting quality.

[0042] The primary color pixel circuit 101 of the embodiment of the present 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 uniformly, so that the light emission is uniform.

[0043] In the embodiment of the present invention, the primary color micro-LEDs 106 also include white micro-LEDs. By adding white micro-LEDs, the contrast is increased and the light emission quality is improved.

[0044] In the embodiment of the present invention, the blue micro-LED and the green micro-LED share a column data lead 103. The two belong to the same InGaN material system. Although their photoelectric properties are not completely consistent, they are similar. Their turn-on voltage is between 2.5-3V. Different turn-on voltages can be achieved through the design of the driving waveform and the driving system. Such a design can make the driving voltage flip easier and the driving simpler.

[0045] In summary, the embodiments of the present invention simplify the driving structure while ensuring the quality of luminous imaging, so that the color Micro-LED device structure is more compact, light and thin, and the same volume can accommodate more Micro-LEDs, further improving the resolution.

[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0047] Each embodiment in this specification is described in a related manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0048] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A common data lead color Micro-LED device driving structure based on inductive energy storage, characterized in that: The color Micro-LED device driving structure includes: a primary color pixel circuit, a row scanning lead, a column data lead, a P-type channel thin film transistor switch and an N-type channel thin film transistor switch; the primary color pixel circuit includes two primary color micro-light emitting diodes connected in parallel and with opposite electrodes, each of the two primary color micro-light emitting diodes is connected in series with an energy storage inductor, and the energy storage inductor is used to maintain the original light-emitting state of the primary color micro-light emitting diode connected in series with it, thereby extending the light-emitting time, the primary color pixel circuit is connected to the drain of the P-type channel thin film transistor, and the opposite sides of the primary color pixel circuit are grounded and connected to the drain of the N-type channel thin film transistor switch respectively. ; The gate of the P-type channel thin film transistor switch is connected to the row scanning lead, and the row scanning lead is used to control the selection of the P-type channel thin film transistor switch. The source of the P-type channel thin film transistor switch is connected to the column data lead, and the column data lead 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-type channel thin film transistor switch are both connected to the row scanning lead, which is used 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 constitute a light-emitting pixel; When the column data lead drives the first primary color micro-LED in the primary color pixel circuit, the first primary color micro-LED is driven to emit light, and the second primary color micro-LED in the primary color pixel circuit does not emit light due to opposite electrodes. 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 scanning lead ends selection and restores the low potential, so that the first primary color micro-LED and both sides of the first energy storage inductor are at a low potential, and 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 to make it continue to emit light.

2. The common data lead color Micro-LED device driving structure based on inductive 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 of the blue-green primary color pixel circuit are respectively a blue micro-light emitting diode and a green micro-light emitting diode, and the two primary color micro-light emitting diodes of the red-red primary color pixel circuit are both red micro-light emitting diodes.

3. The common data lead color Micro-LED device driving structure based on inductive energy storage according to claim 2, characterized in that: 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 arranged in the corresponding light-emitting pixel areas through extended leads to make each light-emitting pixel emit light evenly.

4. The common data lead color Micro-LED device driving structure based on inductive 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 of the red-red primary color pixel circuit are both red micro-light emitting diodes, the two primary color micro-light emitting diodes of the green-green primary color pixel circuit are both green micro-light emitting diodes, and the two primary color micro-light emitting diodes of the blue-blue primary color pixel circuit are both blue micro-light emitting diodes; the primary color pixel circuits are evenly arranged so that the light-emitting pixels emit light evenly.

5. The common data lead color Micro-LED device driving structure based on inductive energy storage according to claim 1, characterized in that: The primary color micro-light emitting diode also includes a white micro-light emitting diode, 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-light emitting diodes of the blue-green primary color pixel circuit are respectively a blue micro-light emitting diode and a green micro-light emitting diode, and the two primary color micro-light emitting diodes of the red-white primary color pixel circuit are respectively a red micro-light emitting diode and a white micro-light emitting diode. The adjacent blue-green primary color pixel circuit and the red-white primary color pixel circuit constitute a light-emitting pixel.

6. The common data lead color Micro-LED device driving structure based on inductive 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 arranged at intervals and evenly, so that the primary color micro-light emitting diodes in each of the light-emitting pixels are arranged consistently, thereby making each of the light-emitting pixels emit light evenly.

Images