Data loading apparatus and method for micro LED display panel

Through the data time-sharing loading method, the problem of limited number of storage bits in the micro LED display panel is solved, and the normal loading of display data signal data is realized, simplifying the manufacturing process and reducing the cost, while reducing the area of the display panel.

WO2025166709A1PCT designated stage Publication Date: 2025-08-14JADE BIRD DISPLAY (SHANGHAI) LTD
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Patent Information

Application Number
PCT/CN2024/076888
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-02-08
Publication Date
2025-08-14

AI Technical Summary

Technical Problem

In the micro LED display panel, since the area of a single pixel unit gradually becomes smaller and the number of memory bits is limited, the loading of data signal data becomes a problem. It is difficult for the prior art to load display data signal data normally under limited memory bit conditions.

Method used

The data time-sharing loading method is adopted to load M bits of data signal data through N storage bits, and the unloaded data signal data is scanned in time until the loading of one frame of data signal data is completed, and data loading is achieved using the coupling of external interface, frame buffer and storage bits.

Benefits of technology

When the number of memory bits is limited, normal loading of data signal data is achieved, simplifying the pixel manufacturing process, reducing component costs, and reducing the area of the display panel.

✦ Generated by Eureka AI based on patent content.

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Abstract

A data loading method for a micro LED display panel. The method is applied to a micro LED display panel, which includes pixels and is configured with N memory bits. The method comprises the following steps: loading, into N memory bits, any N bits of data signal information from M bits of data signal information that is included in an n-th frame of data signal information, N being less than M, and after loading has been completed, a panel area scanning the N bits of data signal information in the N memory bits; and loading, into the N memory bits, at most N bits of unloaded data signal information, and after loading has been completed, the panel area scanning the unloaded data signal information in the N memory bits, and repeating this step until the panel area has scanned the M bits of data signal information. By means of the present invention, the loading problem caused by a reduction in the number of memory bits is solved in a time-division data loading manner.
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Description

Data loading device and method for micro LED display panel Technical Field

[0001] The present invention relates to the field of micro LED display technology, and in particular to data loading of a micro LED display panel. Background Art

[0002] Data loading for a MicroLED panel refers to the process of loading image data into the panel. This process involves transferring the image data bit by bit through a frame buffer to the memory bits on the MicroLED panel, and then scanning the data in these memory bits through the panel area. A frame of data signal data in the frame buffer is assumed to be 10 bits (D9, D8, D7, D6, D5, D4, D3, D2, D1, D0). Therefore, when the panel area scans the data in these memory bits, it can scan all 10 bits of data from D9 to D0 at once.

[0003] Specifically, Figure 2 shows a conventional solution for loading 10-bit image data into a MicroLED panel. This loading solution assumes that the number of storage bits in the display panel is also set to 10, corresponding to the 10 bits of stored data (D9, D8, D7, D6, D5, D4, D3, D2, D1, D0).

[0004] The process for loading frame n-1 data is as follows: 10 storage bits load the n-1 frame data from the frame buffer. After loading is complete, the panel area scans the n-1 frame data in the storage bits to complete the display. During the time the panel area scans the n-1 frame data in the storage bits, the external interface must complete the transfer of the 10 bits of data from frame n to the frame buffer.

[0005] The nth frame data loading process is as follows: 10 storage bits load the nth frame data from the frame buffer. After loading is complete, the panel area scans the nth frame data in the storage bits to complete the display. During the time the panel area scans the nth frame data in the storage bits, the external interface needs to complete the transfer of the 10 bits of data of the (n+1)th frame to the frame buffer.

[0006] The process for loading the n+1th frame data is as follows: 10 storage bits load the n+1th frame data from the frame buffer. After loading is complete, the panel area scans the n+1th frame data in the storage bits to complete the display. During the time the panel area scans the n+1th frame data in the storage bits, the external interface must complete the transfer of the 10 bits of data for the n+2th frame to the frame buffer.

[0007] However, the current technical design difficulty of data loading for MicroLED panels lies in the fact that the area of ​​a single pixel unit in the MicroLED panel is gradually getting smaller. According to the area size design requirement, the area allocated to a single pixel in the MicroLED panel may only be able to accommodate a small number of storage bits (such as 2 or 3). Therefore, under this condition, assuming that the number of bits of the data signal data is 10 bits, 2-3 storage bits cannot directly correspond to the 10 bits (D9, D8, D7, D6, D5, D4, D3, D2, D1, D0) of the stored data signal data, making the loading of data signal data a problem. Therefore, the present invention needs to solve the technical problem of the MicroLED panel normally loading display data signal data and completing image display normally under the condition of a limited number of storage bits.

[0008] Summary of the Invention

[0009] In order to solve the above technical problems, the present invention provides a data loading device and method for a Micro LED display panel to improve the loading problem of the Micro LED panel under the condition of a limited number of storage bits.

[0010] To achieve the above-mentioned object, the present invention provides a data loading method for a micro LED display panel, which is applied to a micro LED display panel including a pixel configured with N storage bits, and is characterized by comprising the following steps:

[0011] The N storage bits are loaded with any N bits of data signal data from the M bits of data signal data contained in an n-th frame of data signal data, where N is less than M. After the loading is completed, a panel area of ​​the micro LED display panel scans the N bits of data signal data in the N storage bits; and

[0012] The N storage bits load up to N bits of data signal data that have not been loaded in the M bits of data signal data contained in the n-th frame data signal data. After the loading is completed, the panel area scans the unloaded data signal data in the N storage bits, and repeats this step until the panel area scans the M bits of data signal data in the n-th frame data signal data.

[0013] The micro LED display panel has an external interface and a frame buffer, wherein the external interface is coupled to the frame buffer, and the frame buffer is coupled to the N storage bits, and further comprises the following steps:

[0014] The external interface transmits the n-th frame data signal to the frame buffer for loading into the N storage bits.

[0015] In one embodiment, the data loading method for the micro LED display panel further comprises the following steps:

[0016] The external interface transmits an (n+1)th frame of data signal information to the frame buffer for loading into the N storage bits.

[0017] When the external interface transmits the (n+1)th frame of data signal information to the frame buffer for loading by the N storage bits, the N storage bits are loading and scanning data signal information that has not been loaded.

[0018] When the N storage bits are loaded with at most N bits of data signal data out of the M bits of data signal data for the last time, the external interface transmits all bits of data signal data in the (n+1)th frame of data signal data to the frame buffer.

[0019] The data loading method for the micro LED display panel further comprises the following steps:

[0020] The N storage bits are loaded with any N bits of data signal data from the M bits of data signal data contained in the (n+1)th frame of data signal data. After the loading is completed, the panel area scans the N bits of data signal data in the N storage bits; and

[0021] The N storage bits load up to N bits of data signal data that have not been loaded in the M bits of data signal data contained in the n+1th frame data signal data. After the loading is completed, the panel area scans the unloaded data signal data in the N storage bits, and repeats this step until the N storage bits have scanned the M bits of data signal data in the n+1th frame data signal data.

[0022] In a specific embodiment, when the amount of the unloaded data signal data is greater than N bits, the N storage bits will load N bits of the unloaded data signal data at that time; when the amount of the unloaded data signal data is less than or equal to N bits, the N storage bits will load the remaining amount of the unloaded data signal data at that time.

[0023] In a specific embodiment, the data signal information loaded into the N storage bits is loaded by randomly selecting N bits of data signal information.

[0024] In a specific embodiment, the data signal data loaded into the N storage bits are loaded by sequentially selecting N bits of data signal data.

[0025] In a specific embodiment, the panel area requires different scanning times for scanning each bit of data signal data in the nth frame of data signal data, and the data signal data loaded by the N storage bits are loaded by selecting N bits of data signal data in a manner that minimizes the sum of the numerical differences between the scanning times of each N bits of data signal data in the M bits of data signal data.

[0026] In a specific embodiment, while the panel area of ​​the micro LED display panel scans the N bits of data signal data in the N storage bits, the N storage bits load up to N bits of data signal data that have not been loaded among the M bits of data signal data contained in the N frames of data signal data.

[0027] The present invention also provides a data loading device for a micro-LED display panel, comprising an external interface, a frame buffer, N storage bits, and a panel area. The external interface is used to receive an n-th frame of data signal data, wherein the n-th frame of data signal data is data signal data comprising M bits. The frame buffer is coupled to the external interface to receive the n-th frame of data signal data. N storage bits are coupled to the frame buffer. The N storage bits are used to load the n-th frame of data signal data in the frame buffer, where N is less than M, and the N storage bits are used to load N bits of the data signal data from the M bits of data signal data in the frame buffer. The storage bits are used to load the n-th frame of data signal data in the frame buffer. The panel area is coupled to the storage bits to scan the N bits of data signal data in the storage bits.

[0028] The present invention provides a micro-LED display panel comprising the aforementioned micro-LED display panel data loading device, a column data scanner, and a row data scanner. The column data scanner is coupled to a frame buffer and N storage bits, and is configured to drive data in the frame buffer to the N storage bits. The row data scanner is coupled to a panel region and the N storage bits, and is configured to scan the data in the N storage bits and output a pulse modulation signal to the panel region, so that the panel region displays according to the pulse modulation signal.

[0029] Under the condition that the number of storage bits is limited, the present invention has the following beneficial effects:

[0030] (1) Use the data time-sharing loading method to achieve the purpose of normal loading of data signal information.

[0031] (2) Using the data time-sharing loading method, the number of storage bits in a single pixel module is reduced, the pixel manufacturing process is simplified, and the component cost is saved.

[0032] (3) Reducing the number of storage bits in a single pixel module, thereby reducing the number of storage bits in the pixel matrix of the display panel exponentially, and reducing the area of ​​the MicroLED display panel in appearance. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The above and other objects, features and advantages of the present disclosure will become more apparent through a more detailed description of exemplary embodiments of the present disclosure with reference to the accompanying drawings, wherein like reference numerals generally represent like components in the exemplary embodiments of the present disclosure.

[0034] FIG1 is a schematic structural diagram of a data loading device for a micro LED display panel in the prior art;

[0035] FIG2 is a functional block diagram of a data loading device for a micro LED display panel in the prior art;

[0036] FIG3 is a loading timing diagram of a data loading method for a micro LED display panel in the prior art;

[0037] FIG4 is a functional block diagram of an embodiment of a data loading device for a micro LED display panel according to the present invention;

[0038] FIG5 is a functional block diagram of an embodiment of a micro-LED display panel according to the present invention;

[0039] FIG6 is a flowchart illustrating the steps of one embodiment of a method for loading data onto a micro LED display panel according to the present invention;

[0040] FIG7 is a flowchart illustrating the steps of one embodiment of a method for loading data onto a micro LED display panel according to the present invention;

[0041] FIG8 is a flowchart of one embodiment of a method for loading data onto a micro LED display panel according to the present invention;

[0042] FIG. 9 is a loading timing diagram of an embodiment of a data loading method for a micro LED display panel according to the present invention. DETAILED DESCRIPTION

[0043] The preferred embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although preferred embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to make the present disclosure more thorough and complete, and to fully convey the scope of the present disclosure to those skilled in the art.

[0044] Before introducing the data loading method of the present invention, the general process of loading data on the MicroLED panel is first described with reference to diagrams. Please refer to Figures 1 and 2. Figure 1 is a structural schematic diagram of the data loading device PD of the prior art MicroLED display panel, and Figure 2 is a functional block diagram of the data loading device PD of the prior art MicroLED display panel. As shown in Figures 1 and 2, the external interface 1 (interface) transfers data to the frame buffer 2 (Buffer) on a frame basis, where the data signal data of one frame is assumed to be M bits [DM-1, DM-2..D0]. The memory bit 3 (Memory bit) downloads (Load) the data signal data from the frame buffer 2 (Buffer), and finally the pixel scans (Scan) the data signal data in the memory bit 3 to complete the display. It is worth noting that the memory bit 3 in this case refers to the memory bit 3 of the pixel in the panel area 4.

[0045] As shown in Figures 1 and 2 , the data signal displayed by the data loading device PD of a conventional micro-LED display panel is M bits, and the number of storage bits 3 configured for a single pixel is also M. In conventional technology, the data signal is typically 10 bits, and the number of storage bits 3 is set to 10. Based on this hardware, the data loading method of the data loading device PD of a micro-LED display panel is shown in Figure 3 .

[0046] Please refer to Figure 3, which shows a loading timing diagram of a prior art data loading method for a micro-LED display panel. According to the data loading method shown in Figure 3, the loading process for the nth frame of data signal data is as follows: 10 storage bits load the nth frame of data signal data from the frame buffer. After loading is complete, the panel area scans the nth frame of data signal data in these storage bits to complete data loading and display. During the time the panel area scans the nth frame of data signal data in these storage bits, the external interface must complete the transfer of the 10-bit data signal data of the (n+1)th frame to the frame buffer.

[0047] However, the current technical design difficulty of data loading for micro-LED display panels lies in the gradually decreasing area of ​​individual pixel units in micro-LED display panels. According to these area size design requirements, the area allocated to a single pixel in a micro-LED display panel may only be able to accommodate a small number of storage bits. Therefore, assuming that the data signal information displayed by the micro-LED display panel is M bits, the number of storage bits configured for a single pixel is N. Please refer to Figure 4, which is a functional block diagram of one embodiment of a data loading device D for a micro-LED display panel of the present invention. As shown in Figure 4, the present invention provides a data loading device D for a micro-LED display panel, comprising an external interface 1, a frame buffer 2, N storage bits 3, and a panel area 4. The external interface 1 is used to receive an n-th frame of data signal information, wherein the n-th frame of data signal information is data signal information containing M bits. The frame buffer 2 is coupled to the external interface 1 to receive the n-th frame of data signal information. The N storage bits 3 are coupled to the frame buffer 2. The N storage bits 3 are used to load the n-th frame of data signal data in the frame buffer 2, where N is less than M. The N storage bits 3 are used to load N bits of data signal data among the M bits of data signal data in the frame buffer 2. The storage bits 3 are used to load the n-th frame of data signal data in the frame buffer 2. The panel area 4 is coupled to the N storage bits 3 and is used to scan the N bits of data signal data in the N storage bits 3.

[0048] Please refer to Figure 5, which is a functional block diagram of one embodiment of a micro-LED display panel MD according to the present invention. As shown in Figure 5, the present invention provides a micro-LED display panel MD comprising the aforementioned micro-LED display panel data loading device D, a column data scanner 5, and a row data scanner 6. The column data scanner 5 is coupled to the frame buffer 2 and the N storage bits 3, and is configured to drive data from the frame buffer 5 to the N storage bits 3. The row data scanner 6 is coupled to the panel region 4 and the N storage bits 3, and is configured to scan the data from the N storage bits 3 and output a pulse modulation signal to the panel region 4, so that the panel region 4 displays according to the pulse modulation signal.

[0049] Please refer to Figure 6, which is a flowchart of one embodiment of a method for loading data into a micro-LED display panel according to the present invention. As shown in Figure 6, the present invention further provides a method for loading data into a micro-LED display panel, which is applied to a micro-LED display panel including a pixel configured with N storage bits, and is characterized by comprising the following steps:

[0050] Step S1: The N storage bits are loaded with any N bits of data signal data from the M bits of data signal data contained in an n-th frame of data signal data, where N is less than M. After the loading is completed, a panel area of ​​the micro LED display panel scans the N bits of data signal data in the N storage bits; and

[0051] Step S2: The N storage bits load at most N bits of data signal data that have not been loaded in the M bits of data signal data contained in the n-th frame data signal data. After the loading is completed, the panel area scans the unloaded data signal data in the N storage bits, and repeats this step until the panel area scans the M bits of data signal data in the n-th frame data signal data.

[0052] In some embodiments, in steps S1 and S2, while the panel area of ​​the micro LED display panel scans the N bits of data signal data in the N storage bits, the N storage bits are loaded with up to N bits of data signal data that have not been previously loaded from the M bits of data signal data contained in the N frames of data signal data. In some embodiments, in steps S1 and S2, after the panel area of ​​the micro LED display panel scans the N bits of data signal data in the N storage bits, the N storage bits are loaded with up to N bits of data signal data that have not been previously loaded from the M bits of data signal data contained in the N frames of data signal data.

[0053] Please refer to FIG7 , which is a flowchart of one embodiment of a method for loading data into a micro-LED display panel according to the present invention. As shown in FIG7 , in some embodiments, the following steps are further included before step S1 :

[0054] Step S0: The external interface transmits the n-th frame data signal to the frame buffer for loading into the N storage bits.

[0055] Please refer to FIG8 , which is a flowchart of one embodiment of a method for loading data into a micro-LED display panel according to the present invention. As shown in FIG8 , in some embodiments, after step S1 , the following steps are further included:

[0056] Step S3: The external interface transmits at least a portion of the data signal data in the (n+1)th frame to the frame buffer for loading by the N storage bits. In other embodiments, step S3 may be performed simultaneously with step S2. If the N storage bits are last loaded with at most N bits of the M bits of data signal data, the external interface transmits all the data signal data in the (n+1)th frame to the frame buffer. If the N storage bits are not last loaded with at most N bits of the M bits of data signal data, the external interface transmits a portion of the data signal data in the (n+1)th frame to the frame buffer. In other embodiments, step S3 occurs after step S2.

[0057] In the above embodiment, the following steps are further included:

[0058] Step S4: the N storage bits are loaded with any N bits of data signal data from the M bits of data signal data contained in the (n+1)th frame of data signal data. After the loading is completed, the panel area scans the N bits of data signal data in the N storage bits; and

[0059] Step S5: The N storage bits load at most N bits of data signal data that have not been loaded in the M bits of data signal data contained in the n+1th frame data signal data. After the loading is completed, the panel area scans the unloaded data signal data in the N storage bits, and this step is repeated until the N storage bits have scanned the M bits of data signal data in the n+1th frame data signal data.

[0060] Among them, in the above steps, when the amount of the unloaded data signal data is greater than N bits, the N storage bits will load N bits of the unloaded data signal data at that time; when the amount of the unloaded data signal data is less than or equal to N bits, the N storage bits will load the remaining amount of the unloaded data signal data at that time.

[0061] According to the above data loading method for the micro LED display panel, the variable parameters (M and N) are quantified. The present invention also provides the following specific embodiments.

[0062] In some embodiments, the manner in which the N storage bits load data signal data from the frame buffer may include the following three methods, which will be described later:

[0063] 1. Load data by randomly selecting N bits of data signal information;

[0064] 2. Loading data signal data by sequentially selecting N bits; and

[0065] 3. Since the scanning time required for the panel area to scan each of the data signal data is different, the scanning time required for the panel area to scan each bit of the data signal data in the nth frame of data signal data is different. The data signal data loaded by the N storage bits is selected for loading in a manner that minimizes the sum of the numerical difference between the scanning times of each N bits of data signal data in the M bits of data signal data.

[0066] Please refer to Figure 9, which is a loading timing diagram of one embodiment of a data loading method for a micro-LED display panel according to the present invention. As shown in Figure 9, in one embodiment, assuming the number of bits of the data signal data is M = 10, each bit of the 10-bit data signal data is recorded as: D9, D8, D7, D6, D5, D4, D3, D2, D1, and D0. Assume that the number of storage bits in a single pixel is configured as N = 2. Based on this hardware condition, it can be seen that one frame of data needs to be loaded five times. Regarding the order in which the data bits are loaded, the data signal data can be loaded sequentially with two-bit data that are offset, or with two-bit data that are continuous, or with a mixture of two-bit data that are continuous and offset. In this embodiment, the order of loading can be selected in a variety of ways.

[0067] Take the staggered loading process of the nth frame data signal as an example:

[0068] Step A1: Two storage locations are loaded into the frame buffer with D7 and D0 from the data signal data of the nth frame. After loading, the panel area scans the data signal data D7 and D0 in the storage locations. The time taken for scanning is recorded as T7 and T0.

[0069] Step A2: Two storage locations are loaded into the frame buffer with D6 and D1 from the data signal data of the nth frame. After loading, the panel area scans the data signal data D6 and D1 in the storage locations. The time taken for scanning is recorded as T6 and T1.

[0070] Step A3: Two storage locations are loaded into the frame buffer with D5 and D2 from the data signal data of the nth frame. After loading, the panel area scans the data signal data D5 and D2 in the storage locations. The time taken for scanning is recorded as T5 and T2.

[0071] Step A4: Two storage locations are loaded into the frame buffer with D4 and D3 from the data signal data of the nth frame. After loading, the panel area scans the data signal data D4 and D3 in the storage locations. The time taken for scanning is recorded as T4 and T3.

[0072] Step A5: Two storage bits (D9 and D8) are loaded into the frame buffer from the data signal data of the nth frame. After loading, the panel area scans the data signal data D9 and D8 in the storage bits. The time taken for scanning is recorded as T9 and T8. During T9 and T8, the external interface transmits the 10-bit data signal data of the n+1th frame to the frame buffer.

[0073] Continue to load the 10-bit data signal information of the (n+1)th frame according to steps A1 to A5.

[0074] When 10-bit data signal data is loaded using the above data loading method, different combinations of data can be used for each bit. In the above specific implementation, the data combination of each bit of the staggered loading method is: D7 / D0, D6 / D1, D5 / D2, D4 / D3 and D9 / D8 combination loading method. The reason for adopting the above combination is that the scanning time T9 and T8 are the longest in the D9 / D8 combination. The transmission of the n+1 frame data is completed in this process, which can reduce the bandwidth requirement and the data transmission rate requirement. At the same time, the durations of T7 / T0, DT / T1, T5 / T2, and T4 / T3 corresponding to the other combinations D7 / D0, D6 / D1, D5 / D2 and D4 / D3 are more balanced, which helps to avoid the shortest durations T0, T1 and T2 being covered by the loading duration, thereby affecting the data display effect.

[0075] In another embodiment, the data combination can also be a continuous loading method (the above D7 / D0, D6 / D1, and D5 / D2 are staggered combinations), such as D9 / D8, D7 / D6, D5 / D4, D3 / D2, and D1 / D0. In yet another embodiment, the data combination can be a continuous loading method, a staggered loading method, or a combination of continuous and staggered loading methods.

[0076] The present invention also discloses an embodiment in which the variable parameter M is another value. Assume that M = 8, i.e., the data signal data is 8 bits. Here, each bit of the 8-bit data signal data is denoted as: D7, D6, D5, D4, D3, D2, D1, and D0. Furthermore, assume that the number of storage bits N = 2. Under this condition, one frame of data needs to be loaded four times. Taking the loading process of the nth frame of data as an example, the loading process is as follows:

[0077] Step B1: Two storage locations are loaded into the frame buffer with D7 and D0 from the data signal data of the nth frame. After loading, the panel area scans the data signal data D7 and D0 in the storage locations. The time taken for scanning is recorded as T7 and T0.

[0078] Step B2: Two storage locations are loaded into the frame buffer with D6 and D1 from the data signal data of the nth frame. After loading, the panel area scans the data signal data D6 and D1 in the storage locations. The time taken for scanning is recorded as T6 and T1.

[0079] Step B3: Two storage locations are loaded into the frame buffer with D5 and D2 from the data signal data of the nth frame. After loading, the panel area scans the data signal data D5 and D2 in the storage locations. The time taken for scanning is recorded as T5 and T2.

[0080] Step B4: Two storage bits load D4 and D3 from the data signal data of frame n into the frame buffer. After loading, the panel area scans the data signal data D4 and D3 in the storage bits. The scanning time is recorded as T4 and T3. During T4 and T3, the external interface transmits the 10-bit data signal data of frame n+1 to the frame buffer.

[0081] Regarding the configuration of the number of storage bits, it can be configured according to the area allocated to a single pixel. The staggered loading method of the present invention is to solve the data loading problem when the number of storage bits is less than the number of bits of the loaded data signal information.

[0082] When the data signal data is M = 10 bits, assuming the number of storage bits N = 5, then a frame of data can be loaded in two time-sharing steps. The loading steps using the continuous combination loading method are as follows:

[0083] Step C1: The five storage locations in the frame buffer are loaded with D4, D3, D2, D1, and D0 from the data signal data of the nth frame. After loading, the panel area scans the data signal data D4, D3, D2, D1, and D0 in the storage locations. The times used for scanning are recorded as T4, T3, T2, T1, and T0.

[0084] Step C2: The five storage bits in the frame buffer are loaded with D9, D8, D7, D6, and D5 from the data signal data of the nth frame. After loading, the panel area scans the data signal data D9, D8, D7, D6, and D5 in the storage bits. The time taken for this scan is recorded as T9, T8, T7, T6, and T5. During T9, T8, T7, T6, and T5, the external interface transmits the 10-bit data signal data of the n+1th frame to the frame buffer.

[0085] If the dislocation loading method is adopted, the loading steps are as follows:

[0086] Step D1: The five storage locations in the frame buffer are loaded with D8, D6, D4, D2, and D0 from the data signal data of the nth frame. After loading, the panel area scans the data signal data D8, D6, D4, D2, and D0 in the storage locations. The times used for scanning are recorded as T8, T6, T4, T2, and T0.

[0087] Step D2: The five storage bits in the frame buffer are loaded with D9, D7, D5, D3, and D1 from the data signal data of the nth frame. After loading, the panel area scans the data signal data D9, D7, D5, D3, and D1 in the storage bits. The scanning time is recorded as T9, T7, T5, T3, and T1. During T9, T7, T5, T3, and T1, the external interface transmits the 10-bit data signal data of the n+1th frame to the frame buffer.

[0088] It should be noted that relational terms in this document, such as "first" and "second", are used only to distinguish an entity or operation from another entity or operation, and do not require or imply any actual relationship or order between these entities or operations. In addition, the words "include", "have" and "include" and other similar forms are intended to be equivalent in meaning and are open-ended, and one or more items following any of these words are not intended to be an exhaustive list of such one or more items, or to be limited to the listed one or more items.

[0089] As used herein, unless expressly stated otherwise, the term "or" encompasses all possible combinations unless not feasible. For example, if a component is stated to include either A or B, then unless expressly stated otherwise or not feasible, the component may include A, or B, or A and B. As a second example, if a component is stated to include either A, B, or C, then unless expressly stated otherwise or not feasible, the component may include A, or B, or C, or A and B, or A and C, or B and C, or A, B, and C.

[0090] In the foregoing description, embodiments have been described with reference to many specific details, which may vary depending on the implementation. Certain changes and modifications may be made to the described embodiments. Other embodiments will be clear to those skilled in the art in view of the description and practice of the invention disclosed herein. The description and examples are intended to be regarded as merely exemplary, with the true scope and spirit of the invention being indicated by the following claims. The order of steps shown in the accompanying drawings is also intended to be for illustrative purposes only and is not intended to be limited to any particular order of steps. Therefore, it will be understood by those skilled in the art that these steps may be performed in different orders while implementing the same method.

[0091] In the drawings and the specification, exemplary embodiments have been disclosed. However, many variations and modifications may be made to these embodiments. Therefore, although specific terms are employed, they are used in a general and descriptive sense only and not for the purpose of limitation.

Claims

1. A data loading method for a micro LED display panel, applied to a micro LED display panel, comprising a pixel configured with N storage bits, characterized in that: The following steps are involved: The N storage bits are loaded with any N bits of data signal data from the M bits of data signal data contained in an n-th frame of data signal data, where N is less than M. After the loading is completed, a panel area of the micro LED display panel scans the N bits of data signal data in the N storage bits; and The N storage bits load up to N bits of data signal data that have not been loaded in the M bits of data signal data contained in the n-th frame data signal data. After the loading is completed, the panel area scans the unloaded data signal data in the N storage bits, and repeats this step until the panel area scans the M bits of data signal data in the n-th frame data signal data.

2. The data loading method for a micro LED display panel according to claim 1, wherein the micro LED display panel has an external interface and a frame buffer, the external interface is coupled to the frame buffer, and the frame buffer is coupled to the N storage bits, further comprising the following steps: The external interface transmits the n-th frame data signal to the frame buffer for loading into the N storage bits.

3. The data loading method for a micro LED display panel according to claim 2 further comprises the following steps: The external interface transmits an (n+1)th frame of data signal to the frame buffer for loading into the N storage bits.

4. The data loading method for a micro LED display panel according to claim 3, wherein when the external interface transmits the (n+1)th frame of data signal data to the frame buffer for loading by the N storage bits, the N storage bits are loading and scanning data signal data that has not been loaded.

5. The data loading method for a micro LED display panel according to claim 3 , wherein when the N storage bits are loaded with at most N bits of data signal data among the M bits of data signal data for the last time, the external interface transmits the data signal data of all bits in the (n+1)th frame of data signal data to the frame buffer.

6. The data loading method for a micro LED display panel according to claim 3 further comprises the following steps: The N storage bits are loaded with any N bits of data signal data from the M bits of data signal data contained in the (n+1)th frame of data signal data. After the loading is completed, the panel area scans the N bits of data signal data in the N storage bits; and The N storage bits load up to N bits of data signal data that have not been loaded in the M bits of data signal data contained in the n+1th frame data signal data. After the loading is completed, the panel area scans the unloaded data signal data in the N storage bits, and repeats this step until the N storage bits have scanned the M bits of data signal data in the n+1th frame data signal data.

7. The data loading method for a micro LED display panel according to claim 1 , wherein when the amount of the unloaded data signal data is greater than N bits, the N storage bits are loaded with N bits of the unloaded data signal data at that time; and when the amount of the unloaded data signal data is less than or equal to N bits, the N storage bits are loaded with the remaining amount of the unloaded data signal data at that time.

8. The data loading method for a micro LED display panel according to claim 1, wherein the data signal data loaded into the N storage bits are loaded by randomly selecting N bits of data signal data.

9. The data loading method for a micro LED display panel according to claim 1, wherein the data signal data loaded into the N storage bits are loaded by sequentially selecting N bits of data signal data.

10. The data loading method for a micro-LED display panel according to claim 1 , wherein the panel area has different scanning times for each bit of data signal data in the n-th frame of data signal data, and the data signal data loaded into the N storage bits is selected to load the N bits of data signal data in a manner that minimizes the sum of the numerical differences between the scanning times of the N bits of data signal data in the M bits of data signal data.

11. The data loading method for a micro LED display panel according to claim 1 , wherein while the panel area of the micro LED display panel scans the N bits of data signal data in the N storage bits, the N storage bits load up to N bits of data signal data that have not been loaded from the M bits of data signal data contained in the N frames of data signal data.

12. A data loading device for a micro LED display panel, characterized in that: An external interface for receiving an n-th frame of data signal data, wherein the n-th frame of data signal data is data signal data including M bits; a frame buffer coupled to the external interface and configured to receive the n-th frame data signal; N storage bits, coupled to the frame buffer, the N storage bits being used to load the n-th frame of data signal data in the frame buffer, wherein N is less than M, and the N storage bits are used to load N bits of the data signal data among the M bits of data signal data in the frame buffer; as well as A panel area is coupled to the N storage bits and is used to scan the data signal data of N bits in the N storage bits.

13. A micro LED display panel, characterized in that: A data loading device for a micro LED display panel as claimed in claim 12; a column data scanner coupled to the frame buffer and the N storage bits, for driving data in the frame buffer to the N storage bits; as well as A row data scanner is coupled to the panel area and the N storage bits, and is used to scan the data in the N storage bits and output a pulse modulation signal to the panel area, so that the panel area displays according to the pulse modulation signal.

Citation Information

Patent Citations

  • LED display device, driving circuit thereof and driving method

    CN107545864A

  • Driving method of display panel, driving device of display panel and display device

    CN110517630A

  • Image display method and device, electronic equipment and storage medium

    CN114416010A

  • System and method for data planarization

    CN1285944A

  • Device with MIP(memory inside pixel) display

    KR102108516B1