CN111081185A - LED lamp bead array and driving method thereof - Google Patents
LED lamp bead array and driving method thereof Download PDFInfo
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- CN111081185A CN111081185A CN202010022296.2A CN202010022296A CN111081185A CN 111081185 A CN111081185 A CN 111081185A CN 202010022296 A CN202010022296 A CN 202010022296A CN 111081185 A CN111081185 A CN 111081185A
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- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
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Abstract
The invention discloses an LED lamp bead array and a driving method thereof, wherein the LED lamp bead array comprises N rows of LED lamp beads, M columns of LED lamp beads and a driving module, wherein N and M are positive integers larger than 1; each row of LED lamp beads is connected with one row of scanning lines; each row of LED lamp beads is connected with a row data line; each row scanning line is connected with one column data line and shares a data port of the column data line; each row data line is connected with a driving module; the driving module provides display data for each column data line through a data port and provides address information for a row scanning line connected with the column data lines; the column data line provides corresponding display data for each column of LED lamp beads and provides corresponding address information for the row scanning line connected with the column data line; the line scanning lines provide corresponding address information for each line of LED lamp beads, so that the driving structure is simplified, the driving mode of the LED lamp bead array is optimized, and the cost is reduced.
Description
Technical Field
The invention relates to the field of LEDs in the LED display technology, in particular to an LED lamp bead array and a driving method thereof.
Background
In the existing scheme of LED line scanning array driving, as shown in fig. 1a and fig. 1b, a driving circuit is not arranged inside an LED lamp bead, and a common anode connection mode is adopted. The LED lamp beads are distributed in an array form, the row scanning line is connected with all anodes of the row of lamp beads, and the PNP driving tube is connected with the row scanning line to the power supply. The external driving circuit sends out a first row of switching signals to drive the PNP tube to turn on the power supply of the first row of LED lamps, and at the moment, the column driving circuit outputs driving current with variable duty ratio according to display data to light the RGB lamps of the LEDs. And when the first row driving period is finished, the column driving circuit stops outputting the driving current, the row switch signal is turned off, and the first row of LED lamps are turned off. Next, the row scanning circuit turns on the second row scanning switch signal in preparation for lighting the second row of LEDs, and so on. The LED scanning array driving mode needs a row driving circuit, only one row is lighted at a time by adopting a time-sharing scanning mode, and a column driving circuit directly outputs driving current.
The scheme of the built-in driving lamp beads refers to that the driving circuit is placed inside the LED lamp beads, the LED lamp beads are changed from directly receiving the driving current for lighting to receiving the display data, and then the LED light-emitting chips are driven to emit light. This has the advantage that the chip can hold the data to be displayed and maintain the brightness for the whole display period without using the line scanning method. Specifically, how the built-in driving lamp beads receive display data is divided into a serial data transmission mode and a parallel data transmission mode.
In the serial data transmission scheme, as shown in fig. 2a and 2b, the serial signal driving manner refers to that the digital signal output from the controller is transmitted after being received and forwarded by one stage of the LED lamp. The chip extracts its own display data from the data stream and forwards the remaining data back. Because the LED lamps are connected in series and the arrangement mode contains address information, the display data of the LED lamps can be obtained from the data stream relatively simply. The series signal driving mode is mature, the cost is low, but any LED lamp bead is damaged, so that the signal cannot be continuously transmitted, subsequent LED lamps cannot be lighted, and the phenomenon that the LED lamp bead is not controlled due to long strings is caused.
As shown in fig. 3a and 3b, parallel signal driving chips are built in the LED lamp beads in the parallel signal driving scheme, the LED data lines in each column are connected in parallel, and the LED inner-sealed lamp beads receive display data from the parallel data lines to control the LEDs of themselves to emit light. Since the connection relation does not include address information, address information needs to be written into the LED lamps in each row for the driving chip to extract data. The advantage of parallel signal drive mode is that the lamp pearl of sealing in arbitrary LED is damaged, can not lead to other LED lamp pearl data reception abnormal, and the reliability of system is high. However, because the addresses of each of the sealed lamp beads in a row of LEDs are different (repeated data will be received in the same way), a large number of materials need to be prepared in production, and the preparation is tedious and high in cost.
Thus, the prior art has yet to be improved and enhanced.
Disclosure of Invention
The invention aims to provide an LED lamp bead array and a driving method thereof, which can effectively solve the problems that long lamp beads in a series signal driving mode are not controlled and material preparation is complicated and high in cost in a parallel signal driving mode in the prior art, and simultaneously avoid the limitation of time-sharing driving.
In order to achieve the purpose, the invention adopts the following technical scheme:
an LED lamp bead array comprises N rows of LED lamp beads, M columns of LED lamp beads and a driving module, wherein N and M are positive integers larger than 1; each row of LED lamp beads is connected with one row of scanning lines; each row of LED lamp beads is connected with a row data line; each row scanning line is connected with one column data line and shares a data port of the column data line; each column data line is connected with a driving module;
the driving module is used for respectively providing corresponding display data for each column data line through the corresponding data port and providing corresponding address information for the row scanning line connected with the column data line;
the column data line is used for providing corresponding display data for each column of LED lamp beads and providing corresponding address information for the row scanning line connected with the column data line;
the row scanning line is used for providing corresponding address information for each row of LED lamp beads;
and the LED lamp beads are used for being lightened according to the address information and the display data.
Each LED lamp bead of the LED lamp bead array comprises a row address interface, a column data interface, a built-in driving circuit and an LED wafer; the row address interface of each LED lamp bead is connected with the row scanning line of the row, and the column data interface of each LED lamp bead is connected with the column data line of the column;
the column data interface is used for inputting display data in the column data line to the built-in driving circuit;
the row address interface is used for inputting address information in the row scanning line to the built-in driving circuit;
the built-in driving circuit is used for extracting the display data and the address information and driving the LED wafer to be lightened according to the address information and the display data.
The LED lamp bead array, when N is M, M the line data line is connected N respectively the row scanning line.
When N is less than M, the N column data lines are respectively connected with the N row scanning lines, and the rest M-N column data lines are not connected with the row scanning lines.
When N is larger than M, M column data lines are respectively connected with M row scanning lines, and M column data lines are respectively connected with the rest N-M row scanning lines until each row scanning line is connected with one column data line.
A driving method of an LED lamp bead array is suitable for the LED lamp bead array and comprises the following steps:
the driving module provides corresponding display data for each column data line through the corresponding data port and provides corresponding address information for the row scanning line connected with the column data line;
the column data line provides corresponding display data for each column of LED lamp beads, and provides corresponding address information for the row scanning line connected with the column data line;
the row scanning line provides corresponding address information for each row of LED lamp beads;
and the LED lamp beads are lightened according to the corresponding address information and the display data.
In the driving method, the step of lighting the LED lamp beads according to the address information and the display data includes:
a column data interface in the LED lamp bead inputs display data in the corresponding column data line to the built-in driving circuit;
a row address interface in the LED lamp bead inputs address information in the corresponding row scanning line to the built-in driving circuit;
and a built-in driving circuit in the LED lamp bead extracts the corresponding display data and the address information and drives the LED wafer to be lightened according to the address information and the display data.
In the driving method, the step of providing the corresponding address information for the row scan line connected to the column data line by the column data line includes:
when N is equal to M, M column data lines respectively provide the corresponding address information for N row scan lines.
In the driving method, the step of providing the corresponding address information for the row scan line connected to the column data line by the column data line further includes:
and when N is less than M, the N column data lines respectively provide the corresponding address information for the N row scanning lines.
In the driving method, the step of providing the corresponding address information for the row scan line connected to the column data line by the column data line further includes:
when N is larger than M, after M column data lines respectively provide corresponding address information for M row scanning lines, the M column data lines respectively provide corresponding address information for the remaining N-M row scanning lines until each row scanning line acquires the corresponding address information.
Compared with the prior art, the invention provides the LED lamp bead array and the driving method thereof, wherein N rows of LED lamp beads, M columns of LED lamp beads and the driving module of the LED lamp bead array are positive integers, and N and M are more than 1; each row of LED lamp beads is connected with one row of scanning lines; each row of LED lamp beads is connected with a row data line; each row scanning line is connected with one column data line and shares a data port of the column data line; each row data line is connected with a driving module; the driving module provides display data for each column data line through a data port and provides address information for a row scanning line connected with the column data lines; the column data line provides corresponding display data for each column of LED lamp beads and provides corresponding address information for the row scanning line connected with the column data line; the line scanning lines provide corresponding address information for each line of LED lamp beads, so that the driving structure is simplified, the driving mode of the LED lamp bead array is optimized, and the cost is reduced.
Drawings
FIGS. 1a and 1b are schematic diagrams of a prior art LED line scan array driving scheme;
FIGS. 2a and 2b are schematic diagrams of a prior art serial data driving scheme;
FIGS. 3a and 3b are schematic diagrams of a prior art parallel signal driving scheme;
fig. 4 is a schematic diagram of a first embodiment of an LED lamp bead array provided by the present invention;
FIG. 5 is a structural diagram of LED lamp beads in the LED lamp bead array provided by the present invention;
FIG. 6 is a schematic diagram of a second embodiment of an LED lamp bead array provided by the present invention;
FIG. 7 is a schematic diagram of a third embodiment of an LED lamp bead array provided by the present invention;
fig. 8 is a flowchart illustrating steps of a method for driving an LED lamp bead array according to the present invention;
fig. 9 is a flowchart of step S400 in the method for driving an LED lamp bead array according to the present invention.
Detailed Description
The invention aims to provide an LED lamp bead array and a driving method thereof, which can effectively solve the problems that long lamp beads in a series signal driving mode are not controlled and material preparation is complicated and high in cost in a parallel signal driving mode in the prior art, and simultaneously avoid the limitation of time-sharing driving.
In order to make the objects, technical solutions and effects of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 4, the LED lamp bead array provided by the present invention includes N rows of LED lamp beads, M columns of LED lamp beads, and a driving module, where N and M are positive integers greater than 1; each row of LED lamp beads is connected with one row of scanning lines; each row of LED lamp beads is connected with a row data line; each row scanning line is connected with one column data line and shares a data port of the column data line; each column data line is connected with a driving module.
Specifically, the first row of LED lamp beads are correspondingly connected with the first row of scanning lines, the second row of LED lamp beads are correspondingly connected with the second row of scanning lines, the third row of LED lamp beads are correspondingly connected with the third row of scanning lines, and so on, and the Nth row of LED lamp beads are connected with the Nth row of scanning lines; similarly, the first row of LED lamp beads are correspondingly connected with the first row of data lines, the second row of LED lamp beads are correspondingly connected with the second row of data lines, the third row of LED lamp beads are correspondingly connected with the third row of data lines, and so on, and the Mth row of LED lamp beads are correspondingly connected with the Mth row of data lines; correspondingly, the first row scanning line, the second row scanning line to the nth scanning line are respectively marked as H1, H2, … … and HN, and the first column data line, the second column data line and the … … mth column data line are respectively marked as V1, V2, … … and VM; because the LED lamp bead array needs data sending ports of row scanning lines and also needs data sending ports of column data lines, if the first row scanning line H1 is connected to the first column data line V1, and the connection point is point a in the drawing, at this time, the first row scanning line H1 and the first column data line V1 share the data port of the first column data line V1; the second row of scanning lines can be connected with the second row of scanning lines, the second row of scanning lines and the second row of data lines share a data port of the second row of data lines, and so on, each row of scanning lines can be correspondingly connected with one row of data lines and share one data port with the row of data lines, so that the corresponding row of scanning lines can correspondingly obtain required address information from the row of data lines, an independent row scanning line driving circuit is not needed, and only a row data line driving circuit is needed, namely the driving module in the embodiment, the structure of the driving circuit is further simplified, and meanwhile, the light emitting control of the LED lamp bead array is facilitated.
Furthermore, the driving module is configured to provide corresponding display data for each column data line through the corresponding data port, and provide corresponding address information for the row scan line connected to the column data line; the column data line is used for providing corresponding display data for each column of LED lamp beads and providing corresponding address information for the row scanning line connected with the column data line; the row scanning line is used for providing corresponding address information for each row of LED lamp beads, so that the LED lamp bead array can be driven to emit light only by a column data line driving circuit, namely the driving module, the row scanning line and the column data line are combined, special time sequence driving is adopted, the structure of the driving circuit is simplified, each column data line and each row scanning line are provided with corresponding control ports to control the corresponding row LED lamp beads and the corresponding column LED lamp beads, and the phenomenon that long lamp beads are not controlled in a serial signal driving mode can be avoided; meanwhile, each LED lamp bead does not store address information, and the problem that the material preparation is complicated and the cost is high in the parallel signal driving mode can be effectively solved.
Specifically, the driving module adds address information of a corresponding row scanning line in display data of a column data line, so that the row scanning line acquires the address information from the column data line; for example, the driving module provides display data required by the row of LED lamp beads to a first row of data line V1 through a data port, adds address information of the LED lamp beads connected to a first row of scan line H1 to the display data of the first row, and transmits the address information to the first row of scan line H1 through a first row of data line V1, and then transmits the address information to the first row of LED lamp beads through a first row of scan line H1, thereby completing driving display of the LED lamp beads in the corresponding row; and so on to realize the control of the whole LED lamp bead array.
Further, referring to fig. 5, in this embodiment, each LED lamp bead includes a row address interface HS, a column data interface DA, a built-in driving circuit, and an LED chip; the row address interface HS of each LED lamp bead is connected with the row scanning line of the row, and the column data interface DA of each LED lamp bead is connected with the column data line of the column; the column data interface DA is used for inputting display data in the column data line to the built-in driving circuit; the row address interface HS is used for inputting address information in the row scanning line to the built-in driving circuit; the built-in driving circuit is used for extracting the display data and the address information and driving the LED wafer to be lightened according to the address information and the display data; of course, in other embodiments, an LED lamp bead with an external driving circuit may be selected, which is not limited in the present invention.
Specifically, a row address interface HS of each LED lamp bead receives and stores address information transmitted by a column data line connected to a row scan line through the row scan line in which the LED lamp bead is located; the column data interface DA of each LED lamp bead receives the display data through the column data line of the column, and inputs the display data to the built-in driving circuit, namely the built-in driving circuit in the LED lamp beads extracts the corresponding address information and the corresponding display data through the column data interface and the row address interface, and drives the LED lamp beads to be lightened according to the display data and the address information, so that the lightening of the whole LED lamp bead array is realized, and each LED lamp bead is connected in parallel, the lightening of other lamp beads is not influenced by the damage of one LED lamp bead, and the phenomenon that long lamp beads are not controlled in the series signal driving mode is avoided.
Further, with reference to fig. 4, in the first embodiment of the present invention, when N is equal to M, that is, the number of rows and columns of the LED lamp beads is equal, and the number of corresponding row scanning lines and column data lines is equal, M column data lines are respectively connected to N row scanning lines, that is, a first row scanning line is connected to a first column data line, and the first row scanning line and the first column data line share a data port of the first column data line; the second row of scanning lines are connected with the second row of data lines and share the data ports of the second row of data lines until the Nth row of scanning lines are connected with the Mth row of data lines and share the data ports of the Mth row of data lines.
Specifically, in this embodiment, N is 4, M is 4, and certainly, the number of corresponding LED lamp beads may be selected as needed in practice, which is not limited in this embodiment; the corresponding first row scanning line H1 is connected to the first column data line V1, the second row scanning line H2 is connected to the second column data line V2, the third row scanning line H3 is connected to the third column data line V3, and the fourth row scanning line H4 is connected to the fourth column data line V4, that is, when the row scanning line and the column data line are equal, the row and column connecting lines are just combined, which simplifies the array structure.
Further, referring to fig. 6, in a second embodiment of the present invention, when N is less than M, that is, the number of rows of the LED lamp beads is less than the number of columns, and the number of corresponding row scanning lines is less than the number of column data lines, where N column data lines are respectively connected to N row scanning lines, and the remaining M-N column data lines are not connected to the row scanning lines; specifically, in this embodiment, N is 3< M is 4, that is, the number of rows of LED lamp beads is 3, the number of corresponding rows of scan lines is 3, and the rows of scan lines are respectively a first row of scan line H1, a second row of scan line H2, and a third row of scan line H3; the number of columns of the LED lamp beads is 4, the data of the corresponding column data line is 4, and the data are respectively a first column data line V1, a second column data line V2, a third column data line V3 and a fourth data line V4, wherein a first row scan line H1 is connected to the first column data line V1, a second row scan line H2 is connected to the second column data line V2, a third row scan line H3 is connected to the third column data line V3, and the remaining M-N is 1, and the fourth column data line is not connected to the row scan line; the address information in the corresponding first row of LED lamp beads, the corresponding second row of LED lamp beads and the corresponding third row of LED lamp beads is provided by data in a first row of data lines, a second row of data lines and a third row of data lines respectively, and the display data in the corresponding rows of LED lamp beads are provided by four rows of data lines respectively, so that the whole LED lamp bead array can be driven and lightened; similarly, the address information obtained by each of the row scan lines in this embodiment may be different.
Further, referring to fig. 7, in a third embodiment of the present invention, when N > M, that is, the number of rows of LED lamp beads is greater than the number of columns, the number of corresponding row scan lines is greater than the number of column data lines, and after M column data lines are respectively connected to M row scan lines, M column data lines are respectively connected to the remaining N-M row scan lines until each row scan line is connected to one column data line.
Specifically, in this embodiment, N is 8> M is 4 in this embodiment, that is, the number of rows of LED lamp beads is 8, the number of corresponding row scan lines is 8, and the rows are respectively a first row scan line H1, a second row scan line H2, and an eighth row scan line H8; the number of columns of the LED lamp beads is 4, the data of the corresponding column data line is 4, and the data are respectively a first column data line V1, a second column data line V2, a third column data line V3 and a fourth data line V4; in this embodiment, one row data line may be simultaneously connected to a plurality of row scan lines, so as to form a plurality of blocks; for example, the first column data line V1, the second column data line V2, the third column data line V3 and the fourth column data line V4 are respectively connected with the first row scanning line H1, the second row scanning line H2, the third row scanning line H3 and the fourth row scanning line H4 to form a first block; the first column data line V1, the second column data line V2, the third column data line V3 and the fourth column data line V4 are respectively connected with a fifth row scanning line H5, a sixth row scanning line H6, a seventh row scanning line H7 and an eighth row scanning line H8 to form a second block, that is, the first column data line V1 is connected with a first row scanning line in the first block and a fifth row scanning line in the second block, and the second column data line V2 is connected with a second row scanning line in the first block and a sixth row scanning line in the second block until each row scanning line is connected with a column data line, so as to ensure that each LED lamp bead obtains address information in the row scanning line; meanwhile, in this embodiment, each lighting of the LED lamp beads needs to be combined with a preset block address, that is, the LED lamp beads are lighted according to the address information, the display data and the preset block addresses, where the preset block addresses are high-order addresses pre-stored during testing of the LED lamp beads, and the address information in this embodiment is a low-order address.
The present invention also provides a driving method of an LED lamp bead array, referring to fig. 8, where the driving method of the LED lamp bead array is suitable for the LED lamp bead array, and since the LED lamp bead array is described in detail above, it is not described here any more, and the driving method includes the following steps:
s100, the driving module provides corresponding display data for each column data line through the corresponding data port and provides corresponding address information for the row scanning line connected with the column data line;
s200, the column data line provides corresponding display data for each column of LED lamp beads, and provides corresponding address information for the row scanning line connected with the column data line;
s300, providing corresponding address information for each line of LED lamp beads by the line scanning line;
and S400, the LED lamp beads are lightened according to the corresponding address information and the display data.
Further, referring to fig. 9, the step S400 includes:
s410, inputting display data in the corresponding row data line to the built-in driving circuit through a row data interface in the LED lamp bead;
s420, inputting address information in the corresponding row scanning line to the built-in driving circuit through a row address interface in the LED lamp bead;
s430, a built-in driving circuit in the LED lamp bead extracts the corresponding display data and the corresponding address information, and drives the LED wafer to be lightened according to the address information and the display data.
Further, the step S200 includes: and S210, when N is equal to M, the M column data lines respectively provide the corresponding address information for the N row scanning lines.
Further, the step S200 further includes: and S220, when N is less than M, the N column data lines respectively provide the corresponding address information for the N row scanning lines.
Further, the step S200 further includes: and S230, when N is greater than M, after M column data lines respectively provide the corresponding address information for M row scanning lines, the M column data lines respectively provide the corresponding address information for the rest N-M row scanning lines until each row scanning line acquires the corresponding address information.
In summary, according to the LED lamp bead array and the driving method thereof, in the LED lamp bead array, N rows of LED lamp beads, M columns of LED lamp beads and a driving module are provided, where N and M are positive integers greater than 1; each row of LED lamp beads is connected with one row of scanning lines; each row of LED lamp beads is connected with a row data line; each row scanning line is connected with one column data line and shares a data port of the column data line; each row data line is connected with a driving module; the driving module provides display data for each column data line through a data port and provides address information for a row scanning line connected with the column data lines; the column data line provides corresponding display data for each column of LED lamp beads and provides corresponding address information for the row scanning line connected with the column data line; the line scanning lines provide corresponding address information for each line of LED lamp beads, so that the driving structure is simplified, the driving mode of the LED lamp bead array is optimized, and the cost is reduced.
It should be understood that equivalents and modifications of the technical solution and inventive concept thereof may occur to those skilled in the art, and all such modifications and alterations should fall within the scope of the appended claims.
Claims (10)
1. An LED lamp bead array is characterized by comprising N rows of LED lamp beads, M columns of LED lamp beads and a driving module, wherein N and M are positive integers larger than 1; each row of LED lamp beads is connected with one row of scanning lines; each row of LED lamp beads is connected with a row data line; each row scanning line is connected with one column data line and shares a data port of the column data line; each column data line is connected with the driving module;
the driving module is used for respectively providing corresponding display data for each column data line through the corresponding data port and providing corresponding address information for the row scanning line connected with the column data line;
the column data line is used for providing corresponding display data for each column of LED lamp beads and providing corresponding address information for the row scanning line connected with the column data line;
the row scanning line is used for providing corresponding address information for each row of LED lamp beads;
and the LED lamp beads are used for being lightened according to the address information and the display data.
2. The LED lamp bead array of claim 1, wherein each of the LED lamp beads comprises a row address interface, a column data interface, a built-in driving circuit, and an LED chip; the row address interface of each LED lamp bead is connected with the row scanning line of the row, and the column data interface of each LED lamp bead is connected with the column data line of the column;
the column data interface is used for inputting display data in the column data line to the built-in driving circuit;
the row address interface is used for inputting address information in the row scanning line to the built-in driving circuit;
the built-in driving circuit is used for extracting the display data and the address information and driving the LED wafer to be lightened according to the address information and the display data.
3. The LED lamp bead array of claim 1, wherein when N ═ M, M of the column data lines are respectively connected to N of the row scanning lines.
4. The LED lamp bead array according to claim 2, wherein when N < M, N of the column data lines are respectively connected to N of the row scanning lines, and the remaining M-N of the column data lines are not connected to the row scanning line.
5. The LED lamp bead array according to claim 3, wherein when N > M, after M of the column data lines are respectively connected to M of the row scanning lines, M of the column data lines are respectively connected to the remaining N-M of the row scanning lines until one column data line is connected to each of the row scanning lines.
6. The driving method based on the LED lamp bead array as claimed in any one of claims 1-5, characterized by comprising the following steps:
the driving module provides corresponding display data for each column data line through the corresponding data port and provides corresponding address information for the row scanning line connected with the column data line;
the column data line provides corresponding display data for each column of LED lamp beads, and provides corresponding address information for the row scanning line connected with the column data line;
the row scanning line provides corresponding address information for each row of LED lamp beads;
and the LED lamp beads are lightened according to the corresponding address information and the display data.
7. The method for driving the LED lamp bead array according to claim 6, wherein the step of lighting the LED lamp beads according to the address information and the display data includes:
a column data interface in the LED lamp bead inputs display data in the corresponding column data line to a built-in driving circuit;
a row address interface in the LED lamp bead inputs address information in the corresponding row scanning line to the built-in driving circuit;
and a built-in driving circuit in the LED lamp bead extracts the corresponding display data and the address information and drives the LED wafer to be lightened according to the address information and the display data.
8. The method for driving the LED lamp bead array according to claim 6, wherein the step of providing the corresponding address information for the row scanning line connected to the column data line by the column data line comprises:
when N is equal to M, M column data lines respectively provide the corresponding address information for N row scan lines.
9. The method for driving the LED lamp bead array according to claim 6, wherein the step of providing the corresponding address information for the row scan line connected to the column data line by the column data line further comprises:
and when N is less than M, the N column data lines respectively provide the corresponding address information for the N row scanning lines.
10. The method for driving the LED lamp bead array according to claim 6, wherein the step of providing the corresponding address information for the row scan line connected to the column data line by the column data line further comprises:
when N is larger than M, after M column data lines respectively provide corresponding address information for M row scanning lines, the M column data lines respectively provide corresponding address information for the remaining N-M row scanning lines until each row scanning line acquires the corresponding address information.
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| CN202010022296.2A CN111081185A (en) | 2020-01-09 | 2020-01-09 | LED lamp bead array and driving method thereof |
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| CN202010022296.2A CN111081185A (en) | 2020-01-09 | 2020-01-09 | LED lamp bead array and driving method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114093314A (en) * | 2022-01-19 | 2022-02-25 | 北京显芯科技有限公司 | Address setting method and device and display device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101178871A (en) * | 2006-11-09 | 2008-05-14 | 三星Sdi株式会社 | Data driver and organic light emitting diode display device thereof |
| CN101551973A (en) * | 2008-03-31 | 2009-10-07 | 索尼株式会社 | Display apparatus |
| CN101965477A (en) * | 2008-03-07 | 2011-02-02 | 三美电机株式会社 | Liquid crystal backlight device |
| CN102354479A (en) * | 2011-03-28 | 2012-02-15 | 友达光电股份有限公司 | Electroluminescent display and driving method |
| CN202871258U (en) * | 2012-07-03 | 2013-04-10 | 深圳市磊芯半导体有限公司 | LED driving chip cascade circuit |
| CN103268751A (en) * | 2013-05-09 | 2013-08-28 | 深圳市明微电子股份有限公司 | Address code writing-in method and system of LED display devices |
| US20160267877A1 (en) * | 2015-03-11 | 2016-09-15 | Oculus Vr, Llc | Dynamic illumination persistence for organic light emitting diode display device |
| CN106469535A (en) * | 2015-08-17 | 2017-03-01 | 三星显示有限公司 | Display driving integrated circuit, display device and the method driving display floater |
-
2020
- 2020-01-09 CN CN202010022296.2A patent/CN111081185A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101178871A (en) * | 2006-11-09 | 2008-05-14 | 三星Sdi株式会社 | Data driver and organic light emitting diode display device thereof |
| CN101965477A (en) * | 2008-03-07 | 2011-02-02 | 三美电机株式会社 | Liquid crystal backlight device |
| CN101551973A (en) * | 2008-03-31 | 2009-10-07 | 索尼株式会社 | Display apparatus |
| CN102354479A (en) * | 2011-03-28 | 2012-02-15 | 友达光电股份有限公司 | Electroluminescent display and driving method |
| CN202871258U (en) * | 2012-07-03 | 2013-04-10 | 深圳市磊芯半导体有限公司 | LED driving chip cascade circuit |
| CN103268751A (en) * | 2013-05-09 | 2013-08-28 | 深圳市明微电子股份有限公司 | Address code writing-in method and system of LED display devices |
| US20160267877A1 (en) * | 2015-03-11 | 2016-09-15 | Oculus Vr, Llc | Dynamic illumination persistence for organic light emitting diode display device |
| CN106469535A (en) * | 2015-08-17 | 2017-03-01 | 三星显示有限公司 | Display driving integrated circuit, display device and the method driving display floater |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114093314A (en) * | 2022-01-19 | 2022-02-25 | 北京显芯科技有限公司 | Address setting method and device and display device |
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