WO2024037016A1 - 分布式驱动电路及控制方法、显示设备 - Google Patents

分布式驱动电路及控制方法、显示设备 Download PDF

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Publication number
WO2024037016A1
WO2024037016A1 PCT/CN2023/089691 CN2023089691W WO2024037016A1 WO 2024037016 A1 WO2024037016 A1 WO 2024037016A1 CN 2023089691 W CN2023089691 W CN 2023089691W WO 2024037016 A1 WO2024037016 A1 WO 2024037016A1
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WIPO (PCT)
Prior art keywords
circuit
driving circuit
alarm
control circuit
signal
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PCT/CN2023/089691
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English (en)
French (fr)
Inventor
孙俊岳
王玉军
王元磊
方玉婷
夏翔
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华源智信半导体(深圳)有限公司
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Publication of WO2024037016A1 publication Critical patent/WO2024037016A1/zh

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    • G—PHYSICS
    • 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]
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0264—Details of driving circuits

Definitions

  • the present invention relates to the technical field of display devices, and in particular, to a distributed driving circuit and control method, and a display device.
  • LEDs are used in many electronic display devices, such as computers, televisions, mobile devices, smartphones, projection systems, billboards, etc.
  • the display device may contain a large number of LED units, and these LED units may be arranged in an array in the display area. Each LED unit corresponds to a driver, and the drivers correspond to the same control circuit.
  • control circuit and driver are in master-slave mode, the control circuit is the master, initiates status readback, and the driver is the slave.
  • the control circuit In order to ensure the normal operation of the display device, the control circuit needs to read back the working status of all drivers all the time, and the amount of data processing is very large. Moreover, the control circuit needs to read back all drivers, which takes up a lot of time. Therefore, it cannot respond quickly in some special situations, such as rapid adjustment of VLED voltage, triggering of LED area short-circuit fault, etc.
  • the invention provides a distributed drive circuit, a control method thereof, and a display device to solve the problems of large data processing volume and slow response speed in the prior art.
  • a distributed drive circuit which includes: a control circuit, a drive circuit array, a control command interface, and a readback line; wherein,
  • the drive circuit array includes: a plurality of drive circuit groups, each of the drive circuit groups includes: a plurality of drive circuits;
  • the control circuit is used to send control signals and command signals to the driving circuit
  • the control command interface is provided in the control circuit, and the control command interface is used to transfer the a signal output sent by the control circuit for transmission to the drive circuit;
  • the driving circuit is used to drive the light-emitting element in response to the control signal, and is also used to select a corresponding alarm mode in response to the command signal, and generate readback data in the alarm mode to the control circuit;
  • the readback line is used to transmit readback data in the alarm mode generated by the drive circuit back to the control circuit.
  • the readback data generated in the alarm mode includes: an alarm signal.
  • control circuit is also used to send a query signal to the driving circuit
  • the driving circuit is further configured to generate readback data in query mode in response to the query signal;
  • the readback line is also used to transmit the readback data in the query mode generated by the drive circuit back to the control circuit.
  • the alarm signal includes: address information of the faulty driving circuit.
  • control circuit is also used to record the alarm signal and/or report the alarm signal.
  • control circuit is also configured to send a processing signal to the driving circuit according to the alarm signal, so as to process the alarm condition occurring in the driving circuit.
  • the serial communication line corresponds to the driving circuit group one-to-one;
  • control circuit, the serial communication line, and the readback line form a loop, and the driving circuits of each group are connected in series to the serial communication line;
  • the readback data of the driving circuit is transmitted to the readback line via the serial communication line.
  • the driving circuit starting from the second one in each group of driving circuits is also used to analyze the readback data transmitted from the previous driving circuit, and use the parsed readback data and The readback data generated by itself is continued to be transmitted.
  • the number of alarm modes in each driving circuit is multiple.
  • the alarm mode includes any one or more of a light-emitting element driving voltage detection mode, a light-emitting element open circuit detection mode, a light-emitting element short circuit detection mode, and an overheating detection mode.
  • a control method for a distributed drive circuit which includes:
  • the control circuit sends command signals to each group of driving circuits
  • Each driving circuit in the driving circuit group selects a corresponding report in response to the command signal. alarm mode, and generate readback data in the alarm mode to the control circuit;
  • the control circuit receives the readback data in the alarm mode.
  • the control circuit when the readback data in the alarm mode received by the control circuit includes an alarm signal, it also includes:
  • the control circuit sends a query signal to the driving circuit group
  • the readback data in the query mode is received by the control circuit.
  • the alarm signal includes: address information of the failed drive circuit.
  • control circuit determines the alarm signal:
  • the control circuit When the alarm signal is a first type signal, the control circuit records and/or reports the alarm signal;
  • the control circuit sends a processing signal to the driving circuit to process the alarm condition occurring in the driving circuit.
  • a display device which includes: a light-emitting element area array and a distributed driving circuit; wherein,
  • the light-emitting element area array includes: multiple groups of light-emitting element areas, and each group of the light-emitting element areas includes: a plurality of light-emitting element areas;
  • the light-emitting element area corresponds to the driving circuit one-to-one
  • the distributed driving circuit is the distributed driving circuit described in any one of the above.
  • the drive circuit is no longer just a slave.
  • the control circuit can send command signals to it to configure it in the corresponding alarm mode.
  • the drive circuit becomes the host. It can notify the control circuit through interrupts, so that the control circuit no longer needs to actively read back the drive circuit all the time, reducing the data processing volume of the control circuit.
  • the alarm signal also includes: the address information of the faulty drive circuit.
  • the control circuit can know which drive circuit or corresponding light-emitting element has failed by reading back the data in the alarm mode. , there is no need to query the driving circuits one by one, saving time and further reducing the amount of data processing.
  • control circuit is also used to send a processing signal to the driving circuit according to the alarm signal to process the alarm status of the driving circuit; in this way, problems that it can solve by itself can be solved by sending processing signals. Solved, no need to report, saving maintenance time.
  • the alarm modes in the driving circuit can include multiple types, and the control circuit can configure it to any one of the modes as needed, or can configure it to various modes in turn, further reducing the number of alarm modes. Control the data processing capacity of the circuit.
  • Figure 1 is a schematic diagram of a distributed driving circuit according to an embodiment of the present invention.
  • Figure 2 is a schematic diagram of a driving circuit according to an embodiment of the present invention.
  • Figure 3 is a circuit diagram of a display device according to an embodiment of the present invention.
  • first and second are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, features defined as “first” and “second” may explicitly or implicitly include one or more of these features.
  • plural means a plurality, such as two, three, four, etc., unless otherwise clearly and specifically limited.
  • connection and other terms should be understood in a broad sense.
  • it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection. , it can also be electrically connected or can communicate with each other; it can be directly connected, or it can be indirectly connected through an intermediary, it can be the internal connection of two components or the interaction between two components.
  • connection can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection. , it can also be electrically connected or can communicate with each other; it can be directly connected, or it can be indirectly connected through an intermediary, it can be the internal connection of two components or the interaction between two components.
  • a distributed driving circuit which includes: a control circuit 1, a driving circuit array, a control command interface 11, and a readback line 3.
  • the driving circuit array includes: multiple driving circuit groups, and each driving circuit group includes: multiple driving circuits 2 .
  • the control circuit 1 is used to send control signals and command signals to the drive circuit 2 .
  • the control command interface 11 is provided on the control circuit Road 1, the control command interface 11 is used to output the signal sent by the control circuit 1 to transmit it to the driving circuit.
  • the driving circuit 2 is used to drive the light-emitting element in response to the control signal, and is also used to select the corresponding alarm mode in response to the command signal.
  • the driving circuit When the driving circuit is in the alarm mode, it is no longer a slave but becomes a master. It can actively generate readback data in the alarm mode to the control circuit. At this time, the control circuit 1 no longer needs to query the driving circuit one by one.
  • the readback line 3 is used to transmit the readback data in the alarm mode generated by the drive circuit 2 back to the control circuit 1 .
  • the readback data generated in the alarm mode includes: an alarm signal.
  • control circuit when the control circuit receives an alarm signal, the control circuit is also used to send a query signal corresponding to the alarm mode to the driving circuit of the group of driving circuit groups to confirm which driving circuit or driving circuit corresponds to the emitting light.
  • the component is faulty.
  • the driving circuit is also used to generate readback data in the query mode in response to the query signal; the readback line is also used to transmit the readback data in the query mode generated by the driving circuit back to the control circuit.
  • the alarm signal also includes: address information of the faulty drive circuit, that is, the drive circuit also attaches address information to the generated alarm signal.
  • the control circuit can know which drive circuit or the corresponding light-emitting element of the drive circuit has failed, and there is no need to query the drive circuits one by one.
  • control circuit is also used to record alarm signals and/or report alarm signals, so as to facilitate the upper level to obtain fault information in time and conduct timely maintenance.
  • control circuit learns which drive circuit or drive circuit corresponds to the alarm signal by querying the drive circuits of the drive circuit group one by one or by obtaining the alarm signal with address information. If a light-emitting element fails, report the specific information so that maintenance can be more accurate.
  • control circuit does not need to know which driving circuit or the corresponding light-emitting element of the driving circuit has failed, but only reports which group of driving circuits has failed, and then inquires which driving circuit it is during maintenance. Or the light-emitting element corresponding to the driving circuit is faulty.
  • the control circuit when the alarm condition that occurs is a state that can be solved through circuit control, the control circuit is also used to send a processing signal to the driving circuit according to the alarm signal to process the alarm condition that occurs in the driving circuit without reporting it. Solve it yourself, be smarter and save workload. For example: when the alarm condition is overheating, the control circuit can send a processing signal to the driver in the alarm condition.
  • the dynamic circuit performs current reduction processing.
  • the distributed driving circuit also includes: serial communication lines 4 (Comm1,...CommM).
  • the serial communication lines 4 correspond to the driving circuit group one-to-one, please refer to Figure 1.
  • the control circuit 1, serial communication line 4, and readback line 3 form a loop, and the driving circuit 2 of each group is connected in series to the serial communication line 4.
  • the readback data of the driver circuit is transmitted to the readback line via the serial communication line, and then transmitted back to the control circuit through the readback line.
  • the driving circuit starting from the second one in each group of driving circuits is also used to parse the readback data transmitted from the previous driving circuit, and combine the parsed readback data and the readback data generated by itself. Read the data and continue the transfer.
  • the analysis of the readback data can be realized through the internal control circuit 26, please refer to Figure 2.
  • the driving circuit 2 includes a serial communication line (command) input pin and a serial communication line (command) output pin.
  • the serial communication line input pin is used to introduce the serial communication line, and the serial communication line output pin is used to lead out the serial communication line.
  • the serial communication line input pin is connected to an input terminal of the internal control circuit 26, and the output terminal of the internal control circuit 26 is connected to the serial communication line output pin.
  • the analysis of the readback data can also be implemented through a program.
  • each drive circuit there are multiple alarm modes in each drive circuit.
  • the control circuit can configure each drive circuit group as one of the alarm modes as needed, and can also configure the alarm mode of each drive circuit group. Configuration in turns, for example: when including three alarm modes: first alarm mode, second alarm mode, third alarm mode, the control circuit can control the drive circuit to take turns among the three modes.
  • each row of driving circuit groups in the driving circuit array can be configured to the same alarm mode or different alarm modes.
  • the alarm mode may include any one or more of: light-emitting element driving voltage detection mode, light-emitting element open circuit detection mode, light-emitting element short circuit detection mode, overheating detection mode, etc.
  • the alarm modes include: light-emitting element driving voltage detection mode 21, light-emitting element open circuit detection mode 22, light-emitting element short circuit detection mode 23, and overheat detection mode 24.
  • the control command interface 11 sends the command signal to the multiplexer 25 through the Dim line (Dim1,...DimM), and the multiplexer 25 selects the corresponding alarm mode according to the command signal.
  • the selection of the alarm mode can also be implemented through a program.
  • the multiplexer 25 is connected to an input end of the internal control circuit 26 , please refer to FIG. 2 .
  • the multiplexer 25 when the control circuit 1 sends a query signal to the driving circuit, the multiplexer 25 also includes an optional communication line 27, please refer to FIG. 2 . At this time, the driving circuit 2 is only a traditional communication line and a slave.
  • a control method for a distributed drive circuit which includes:
  • the control circuit sends command signals to each group of driving circuits
  • Each driving circuit in the driving circuit group selects the corresponding alarm mode in response to the command signal, and generates readback data in the alarm mode to the control circuit;
  • the readback data in alarm mode is received by the control circuit.
  • the control circuit when the readback data in the alarm mode received by the control circuit includes an alarm signal, it also includes:
  • the control circuit sends a query signal to the drive circuit group
  • Each driving circuit in the driving circuit group generates readback data in the query mode in response to the query signal
  • the readback data in query mode is received by the control circuit.
  • the alarm signal when the drive circuit generates the readback data in the alarm mode to the control circuit including an alarm signal, the alarm signal includes: address information of the failed drive circuit.
  • control circuit determines the alarm signal:
  • the control circuit When the alarm signal is a Category 1 signal, such as a short circuit, open circuit or other physical fault, the control circuit cannot solve it by itself, and the control circuit records and/or reports the alarm signal;
  • the control circuit can solve it by itself, and the control circuit sends a processing signal to the drive circuit to handle the alarm situation in the drive circuit. For example, when an overheat alarm occurs, the control circuit can send a current reduction signal to the drive circuit where the overheat alarm occurs, that is, the overheat condition of the drive circuit can be processed.
  • a display device is also provided.
  • FIG. 3 which includes: a light-emitting element area array and a distributed driving circuit; wherein the light-emitting element area array includes: multiple groups of light-emitting element areas, and each group of light-emitting element areas includes : Multiple light-emitting element areas; the light-emitting element area corresponds to the driving circuit one-to-one; the distributed driving circuit is the distributed driving circuit described in any of the above embodiments, and the driving circuit The dynamic circuit drives the corresponding light-emitting element area in response to the control signal of the control circuit to control whether it emits light and/or the brightness of the light-emitting element.
  • the light-emitting element is a light-emitting diode as an example, and the light-emitting element zone 5 is a light-emitting diode zone (LED Zone).
  • LED Zone light-emitting diode zone
  • the display device may further include: VLED lines (for example: VLED_1...VLED_M), power communication lines Pwr (for example: Pwr1...PwrM) and ground lines Gnd.
  • VLED lines for example: VLED_1...VLED_M
  • power communication lines Pwr for example: Pwr1...PwrM
  • ground lines Gnd ground lines.
  • the VLED line is used to provide power to the light-emitting diode area
  • the ionization communication line Pwr is used to provide power to the drive circuit
  • the Gnd line provides a grounding path for the light-emitting diode area and the drive circuit 2.
  • an implementation mode means the specific features described in conjunction with the embodiment or example, Structures, materials or features are included in at least one embodiment or example of the invention.
  • schematic representations of the above terms do not necessarily refer to the same embodiment or example.
  • the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

本发明提供了一种分布式驱动电路及控制方法、显示设备，该电路包括：控制电路、驱动电路阵列、控制命令接口、回读线；驱动电路阵列包括：多组驱动电路组，每组驱动电路组包括：多个驱动电路；控制电路用于向驱动电路发送控制信号、命令信号；控制命令接口用于将控制电路发送的信号输出，以传输到驱动电路；驱动电路用于响应于控制信号对发光元件进行驱动，还用于响应于命令信号选择对应的报警模式，并向控制电路产生报警模式下的回读数据；回读线用于将驱动电路产生的报警模式下的回读数据传输回控制电路。本发明，驱动电路不再仅仅是从机，报警模式下为主机，可以主动上报给控制电路，不需要控制电路一一查询，减少了控制电路的数据处理量。

Description

分布式驱动电路及控制方法、显示设备 技术领域
本发明涉及显示设备技术领域，尤其涉及一种分布式驱动电路及控制方法、显示设备。
背景技术
LED被用于许多电子显示设备中，例如：电脑、电视、移动设备、智能电话、投影系统、广告牌等。
显示设备中可以包含大量的LED单元，这些LED单元可以以阵列的形式布置在显示区域中，每个LED单元对应一个驱动器，该些驱动器对应同一个控制电路。
现有技术中，控制电路与驱动器为主从模式，控制电路为主机，发起状态回读，驱动器为从机。为了确保显示设备正常工作，控制电路需要一直回读所有驱动器的工作状态，数据处理量非常大。并且，控制电路要回读所有驱动器，占用了大量的时间，因此在一些特殊情况下无法做出快速的反应，如VLED电压快速调整、LED区域短路故障触发等。
发明内容
本发明提供一种分布式驱动电路及其控制方法、显示设备，以解决现有技术中数据处理量大、反应速度慢的问题。
为解决上述技术问题，本发明是通过如下技术方案实现的：
根据本发明的第一方面，提供一种分布式驱动电路，其包括：控制电路、驱动电路阵列、控制命令接口、回读线；其中，
所述驱动电路阵列包括：多组驱动电路组，每组所述驱动电路组包括：多个驱动电路；
所述控制电路用于向所述驱动电路发送控制信号、命令信号；
所述控制命令接口设置于所述控制电路，所述控制命令接口用于将所述 控制电路发送的信号输出，以传输到所述驱动电路；
所述驱动电路用于响应于所述控制信号对发光元件进行驱动，还用于响应于所述命令信号选择对应的报警模式，并向所述控制电路产生所述报警模式下的回读数据；
所述回读线用于将所述驱动电路产生的所述报警模式下的回读数据传输回所述控制电路。
较佳地，所述驱动电路出现所述报警模式下的报警状况时，所述报警模式下产生的回读数据包括：报警信号。
较佳地，所述控制电路还用于向所述驱动电路发送查询信号；
所述驱动电路还用于响应于所述查询信号产生查询模式下的回读数据；
所述回读线还用于将所述驱动电路产生的所述查询模式下的回读数据传输回所述控制电路。
较佳地，所述报警信号包括：出现故障的所述驱动电路的地址信息。
较佳地，所述控制电路还用于记录所述报警信号和/或上报所述报警信号。
较佳地，所述控制电路还用于根据所述报警信号向所述驱动电路发送处理信号，以对所述驱动电路出现的报警状况进行处理。
较佳地，还包括：串行通讯线，所述串行通讯线与所述驱动电路组一一对应；
所述控制电路、所述串行通讯线、所述回读线组成一个回路，每组的所述驱动电路串接在所述串行通信线中；
所述驱动电路的回读数据经所述串行通信线传输到所述回读线。
较佳地，每组所述驱动电路组的从第二个开始的所述驱动电路还用于对前一个所述驱动电路传输来的回读数据进行解析，并将解析出的回读数据以及其自身产生的回读数据进行续传。
较佳地，每个所述驱动电路中的所述报警模式的数量为多种。
较佳地，所述报警模式包括：发光元件驱动电压检测模式、发光元件开路检测模式、发光元件短路检测模式、过热检测模式中的任意一种或多种。
根据本发明的第二方面，提供一种分布式驱动电路的控制方法，其包括：
由控制电路向每组驱动电路组发送命令信号；
由所述驱动电路组中的每个驱动电路响应于所述命令信号选择对应的报 警模式，并向所述控制电路产生所述报警模式下的回读数据；
由所述控制电路接收所述报警模式下的回读数据。
较佳地，当所述控制电路接收到的所述报警模式下的回读数据包括报警信号时，还包括：
由所述控制电路向所述驱动电路组发送查询信号；
由所述驱动电路组中的每个驱动电路响应于所述查询信号产生查询模式下的回读数据；
由所述控制电路接收所述查询模式下的回读数据。
较佳地，当所述驱动电路向所述控制电路产生所述报警模式下的回读数据包括报警信号时，所述报警信号包括：出现故障的所述驱动电路的地址信息。
较佳地，由所述控制电路对所述报警信号进行判断：
当所述报警信号为第一类信号时，由所述控制电路对所述报警信号进行记录和/或上报；
当所述报警信号为第二类信号时，由所述控制电路向所述驱动电路发送处理信号，以对所述驱动电路出现的报警状况进行处理。
根据本发明的第三方面，提供一种显示设备，其包括：发光元件区域阵列、分布式驱动电路；其中，
所述发光元件区域阵列包括：多组发光元件区域，每组所述发光元件区域包括：多个发光元件专区；
所述发光元件专区与所述驱动电路一一对应；
所述分布式驱动电路为上述任一项所述的分布式驱动电路。
本发明提供的分布式驱动电路及控制方法、显示设备，驱动电路不再仅仅只是从机，控制电路可以向其发送命令信号，将其配置为对应的报警模式，此时驱动电路变为主机，其可以通过中断方式通知控制电路，这样控制电路就不再需要一直对驱动电路进行主动回读，减少了控制电路的数据处理量。
本发明的一可选方案中，报警信号中还包括：出现故障的驱动电路的地址信息，控制电路通过报警模式下的回读数据即可知道具体是哪一驱动电路或者对应的发光元件出现故障，无需再对驱动电路进行一一查询，节省了时间，并且进一步减少了其数据处理量。
本发明的一可选方案中，控制电路还用于根据报警信号向驱动电路发送处理信号，以对驱动电路出现的报警状况进行处理；这样对齐其自身可以解决的问题其可以通过发送处理信号进行解决，无需进行上报，节省了检修时间。
本发明的一可选方案中，驱动电路中的报警模式可以包括多种，控制电路可以根据需要将其配置为其中的任意一种模式，或者可以轮流将其配置为各种模式，进一步减少了控制电路的数据处理量。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为本发明的一实施例的分布式驱动电路的示意图；
图2为本发明的一实施例的驱动电路的示意图；
图3为本发明的一实施例的显示设备的电路图；
附图标记说明：
1-控制电路，
11-控制命令接口；
2-驱动电路，
21-发光元件驱动电压检测模式，
22-发光元件开路检测模式，
23-发光元件短路检测模式，
24-过热检测模式；
25-多路复用器，
26-内部控制电路，
27-通讯线；
3-回读线，
4-串行通讯线，
5-发光元件专区。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
在本发明说明书的描述中，需要理解的是，术语“上部”、“下部”、“上端”、“下端”、“下表面”、“上表面”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
在本发明说明书的描述中，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。
在本发明的描述中，“多个”的含义是多个，例如两个，三个，四个等，除非另有明确具体的限定。
在本发明说明书的描述中，除非另有明确的规定和限定，术语“连接”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接或可以互相通讯；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
下面以具体地实施例对本发明的技术方案进行详细说明。下面这几个具体的实施例可以相互结合，对于相同或相似的概念或过程可能在某些实施例不再赘述。
一实施例中，提供一种分布式驱动电路，其包括：控制电路1、驱动电路阵列、控制命令接口11、回读线3，请参考图1。其中，驱动电路阵列包括：多组驱动电路组，每组驱动电路组包括：多个驱动电路2。控制电路1用于向驱动电路2发送控制信号、命令信号。控制命令接口11设置于控制电 路1，控制命令接口11用于将控制电路1发送的信号输出，以传输到驱动电路。驱动电路2用于响应于控制信号对发光元件进行驱动，还用于响应于命令信号选择对应的报警模式。驱动电路为报警模式时不再为从机，变为主机，可以主动向控制电路产生报警模式下的回读数据，此时控制电路1不再需要对驱动电路进行一一查询。回读线3用于将驱动电路2产生的报警模式下的回读数据传输回控制电路1。
一实施例中，驱动电路出现报警模式下的报警状况时，报警模式下产生的回读数据包括：报警信号。
一实施例中，当控制电路接收到报警信号时，控制电路还用于向该组驱动电路组的驱动电路发送该报警模式对应的查询信号，以确认是哪一个驱动电路或驱动电路对应的发光元件出现故障。驱动电路还用于响应于查询信号产生查询模式下的回读数据；回读线还用于将驱动电路产生的查询模式下的回读数据传输回控制电路。
一实施例中，报警信号还包括：出现故障的驱动电路的地址信息，即驱动电路在产生的报警信号中还附上了地址信息。此时控制电路接收到报警信号后即可知道具体是哪一个驱动电路或驱动电路对应的发光元件出现故障，无需再对驱动电路进行一一查询。
一实施例中，控制电路还用于记录报警信号和/或上报报警信号，以方便上一级及时得知故障信息，及时进行检修。
一实施例中，控制电路通过对报警的该组驱动电路组的驱动电路进行一一查询查询或通过获取到的带地址信息的报警信号，来获知到具体是哪一个驱动电路或驱动电路对应的发光元件出现故障，将具体信息上报，这样检修时更精准。
不同实施例中，控制电路也可以不去获知具体是哪一个驱动电路或驱动电路对应的发光元件出现故障，只是将哪一组驱动电路组出现故障上报，检修时再查询具体是哪一驱动电路或驱动电路对应的发光元件出现故障。
一实施例中，当出现的报警状况为通过电路控制可以解决的状态时，控制电路还用于根据报警信号向驱动电路发送处理信号，以对驱动电路出现的报警状况进行处理，无需上报即可自行解决，更加智能，节省了工作量。如：报警状况为过热时，控制电路可以发送处理信号，对出现报警状况的驱 动电路进行降电流处理。
一实施例中，为了方便回读数据的传输，分布式驱动电路还包括：串行通讯线4(Comm1，…CommM)，串行通讯线4与驱动电路组一一对应，请参考图1。控制电路1、串行通讯线4、回读线3组成一个回路，每组的驱动电路2串接在串行通信线4中。驱动电路的回读数据经串行通信线传输到回读线，然后再通过回读线传输回控制电路。
一实施例中，每组驱动电路组的从第二个开始的驱动电路还用于对前一个驱动电路传输来的回读数据进行解析，并将解析出的回读数据以及其自身产生的回读数据进行续传。回读数据的解析可以通过内部控制电路26实现，请参考图2。
其中，驱动电路2包括串行通信线(command)输入引脚、串行通信线(command)输出引脚。串行通信线输入引脚用于串行通讯线的引入，串行通信线输出引脚用于串行通讯线的引出。串行通信线输入引脚连接内部控制电路26的一输入端，内部控制电路26的输出端连接串行通信线输出引脚。
不同实施例中，回读数据的解析也可以通过程序的方式实现。
一实施例中，每个驱动电路中的报警模式的数量为多种，控制电路可以根据需要将每组驱动电路组配置为其中一种报警模式，也可以对每组驱动电路组的报警模式进行轮流配置，如：当包括三种报警模式：第一报警模式、第二报警模式、第三报警模式，控制电路可以控制驱动电路在三种模式间轮流。同一时间，驱动电路阵列中的各行驱动电路组可以被配置为同一种报警模式，也可以为不同种报警模式。
一实施例中，报警模式可以包括：发光元件驱动电压检测模式、发光元件开路检测模式、发光元件短路检测模式、过热检测模式等中的任意一种或多种。
需要说明的是，上述实施例中的报警模式只是举例，不同情况下，可以根据实际需要进行其他报警模式的设计。
报警模式包括：发光元件驱动电压检测模式21、发光元件开路检测模式22、发光元件短路检测模式23、过热检测模式24，请参考图2。该实施例中，控制命令接口11通过Dim线(Dim1，…DimM)将命令信号发送到多路复用器25，多路复用器25根据命令信号选择对应的报警模式。
不同实施例中，报警模式的选择也可以通过程序的方式实现。
一实施例中，当驱动电路2中包括内部控制电路26时，多路复用器25连接内部控制电路26的一输入端，请参考图2。
一实施例中，当控制电路1对驱动电路发送查询信号时，多路复用器25还包括可以选择为通讯线27，请参考图2。此时驱动电路2仅仅为传统的通讯线，为从机。
一实施例中，还提供一种分布式驱动电路的控制方法，其包括：
由控制电路向每组驱动电路组发送命令信号；
由驱动电路组中的每个驱动电路响应于命令信号选择对应的报警模式，并向控制电路产生报警模式下的回读数据；
由控制电路接收报警模式下的回读数据。
一实施例中，当控制电路接收到的报警模式下的回读数据包括报警信号时，还包括：
由控制电路向驱动电路组发送查询信号；
由驱动电路组中的每个驱动电路响应于查询信号产生查询模式下的回读数据；
由控制电路接收查询模式下的回读数据。
一实施例中，当驱动电路向控制电路产生报警模式下的回读数据包括报警信号时，报警信号包括：出现故障的驱动电路的地址信息。
一实施例中，由控制电路对报警信号进行判断：
当报警信号为第一类信号时，如：短路、开路等物理故障，控制电路无法自行解决，由控制电路对报警信号进行记录和/或上报；
当报警信号为第二类信号时，如：过热等逻辑故障，控制电路可以自行解决，由控制电路向驱动电路发送处理信号，以对驱动电路出现的报警状况进行处理。如：出现过热报警时，控制电路可以向出现过热报警的驱动电路发送降电流信号，即可以对驱动电路的过热状况进行处理。
一实施例中，还提供一种显示设备，请参考图3，其包括：发光元件区域阵列、分布式驱动电路；其中，发光元件区域阵列包括：多组发光元件区域，每组发光元件区域包括：多个发光元件专区；发光元件专区与驱动电路一一对应；分布式驱动电路为上述任一实施例所述的分布式驱动电路，驱 动电路响应于控制电路的控制信号对对应的发光元件专区进行驱动，以控制其是否发光和/或发光的亮度。
一实施例中，发光元件以发光二级管为例，发光元件专区5为发光二级管专区(LED Zone)，请参考图3。
显示设备还可以包括：VLED线(例如：VLED＿1…VLED＿M)、电力通信线Pwr(例如：Pwr1…PwrM)和地线Gnd。VLED线用于向发光二级管专区提供电力，电离通信线Pwr用于向驱动电路提供电力，Gnd线为发光二级管专区和驱动电路2提供接地的路径。
在本说明书的描述中，参考术语“一种实施方式”、“一种实施例”、“具体实施过程”、“一种举例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
最后应说明的是：以上各实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述各实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims (15)

  1. 一种分布式驱动电路，其特征在于，包括：控制电路、驱动电路阵列、控制命令接口、回读线；其中，
    所述驱动电路阵列包括：多组驱动电路组，每组所述驱动电路组包括：多个驱动电路；
    所述控制电路用于向所述驱动电路发送控制信号、命令信号；
    所述控制命令接口设置于所述控制电路，所述控制命令接口用于将所述控制电路发送的信号输出，以传输到所述驱动电路；
    所述驱动电路用于响应于所述控制信号对发光元件进行驱动，还用于响应于所述命令信号选择对应的报警模式，并向所述控制电路产生所述报警模式下的回读数据；
    所述回读线用于将所述驱动电路产生的所述报警模式下的回读数据传输回所述控制电路。
  2. 根据权利要求1所述的分布式驱动电路，其特征在于，所述驱动电路出现所述报警模式下的报警状况时，所述报警模式下产生的回读数据包括：报警信号。
  3. 根据权利要求2所述的分布式驱动电路，其特征在于，所述控制电路还用于向所述驱动电路发送查询信号；
    所述驱动电路还用于响应于所述查询信号产生查询模式下的回读数据；
    所述回读线还用于将所述驱动电路产生的所述查询模式下的回读数据传输回所述控制电路。
  4. 根据权利要求2所述的分布式驱动电路，其特征在于，所述报警信号包括：出现故障的所述驱动电路的地址信息。
  5. 根据权利要求3或4所述的分布式驱动电路，其特征在于，所述控制电路还用于记录所述报警信号和/或上报所述报警信号。
  6. 根据权利要求3或4所述的分布式驱动电路，其特征在于，所述控制电路还用于根据所述报警信号向所述驱动电路发送处理信号，以对所述驱动电路出现的报警状况进行处理。
  7. 根据权利要求4所述的分布式驱动电路，其特征在于，还包括：串行通讯线，所述串行通讯线与所述驱动电路组一一对应；
    所述控制电路、所述串行通讯线、所述回读线组成一个回路，每组的所述驱动电路串接在所述串行通信线中；
    所述驱动电路的回读数据经所述串行通信线传输到所述回读线。
  8. 根据权利要求7所述的分布式驱动电路，其特征在于，每组所述驱动电路组的从第二个开始的所述驱动电路还用于对前一个所述驱动电路传输来的回读数据进行解析，并将解析出的回读数据以及其自身产生的回读数据进行续传。
  9. 根据权利要求1至4、7、8任一项所述的分布式驱动电路，其特征在于，每个所述驱动电路中的所述报警模式的数量为多种。
  10. 根据权利要求1至4、7、8任一项所述的分布式驱动电路，其特征在于，所述报警模式包括：发光元件驱动电压检测模式、发光元件开路检测模式、发光元件短路检测模式、过热检测模式中的任意一种或多种。
  11. 一种分布式驱动电路的控制方法，其特征在于，包括：
    由控制电路向每组驱动电路组发送命令信号；
    由所述驱动电路组中的每个驱动电路响应于所述命令信号选择对应的报警模式，并向所述控制电路产生所述报警模式下的回读数据；
    由所述控制电路接收所述报警模式下的回读数据。
  12. 根据权利要求11所述的分布式驱动电路的控制方法，其特征在于，当所述控制电路接收到的所述报警模式下的回读数据包括报警信号时，还包括：
    由所述控制电路向所述驱动电路组发送查询信号；
    由所述驱动电路组中的每个驱动电路响应于所述查询信号产生查询模式下的回读数据；
    由所述控制电路接收所述查询模式下的回读数据。
  13. 根据权利要求11所述的分布式驱动电路的控制方法，其特征在于，当所述驱动电路向所述控制电路产生所述报警模式下的回读数据包括报警信号时，所述报警信号包括：出现故障的所述驱动电路的地址信息。
  14. 根据权利要求12或13所述的分布式驱动电路的控制方法，其特征在于，由所述控制电路对所述报警信号进行判断：
    当所述报警信号为第一类信号时，由所述控制电路对所述报警信号进行 记录和/或上报；
    当所述报警信号为第二类信号时，由所述控制电路向所述驱动电路发送处理信号，以对所述驱动电路出现的报警状况进行处理。
  15. 一种显示设备，其特征在于，包括：发光元件区域阵列、分布式驱动电路；其中，
    所述发光元件区域阵列包括：多组发光元件区域，每组所述发光元件区域包括：多个发光元件专区；
    所述发光元件专区与所述驱动电路一一对应；
    所述分布式驱动电路为权利要求1至10任一项所述的分布式驱动电路。
PCT/CN2023/089691 2022-08-16 2023-04-21 分布式驱动电路及控制方法、显示设备 WO2024037016A1 (zh)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105679230A (zh) * 2016-04-25 2016-06-15 京东方科技集团股份有限公司 一种显示驱动电路、其驱动方法及显示装置
CN110890052A (zh) * 2019-11-29 2020-03-17 Tcl华星光电技术有限公司 驱动电路、驱动方法及显示装置
CN113948036A (zh) * 2020-07-16 2022-01-18 华源智信半导体(深圳)有限公司 用于显示装置中的分布式驱动电路的寻址和冗余方案
CN114283740A (zh) * 2020-09-18 2022-04-05 华源智信半导体(深圳)有限公司 显示装置和用于显示装置的驱动器电路
CN115457901A (zh) * 2022-08-16 2022-12-09 华源智信半导体(深圳)有限公司 分布式驱动电路及控制方法、显示设备

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1622111A1 (en) * 2004-07-28 2006-02-01 Deutsche Thomson-Brandt Gmbh Line driver circuit for active matrix display device
CN106981262B (zh) * 2017-05-15 2020-11-20 上海中航光电子有限公司 显示面板以及故障检测方法
US11276345B2 (en) * 2020-05-22 2022-03-15 Huayuan Semiconductor (Shenzhen) Limited Company Display device with feedback via parallel connections from distributed driver circuits to a single wire interface
US11189220B1 (en) * 2021-03-10 2021-11-30 Huayuan Semiconductor (Shenzhen) Limited Company Display device with distributed driver circuits switchable between serial and parallel communication modes

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105679230A (zh) * 2016-04-25 2016-06-15 京东方科技集团股份有限公司 一种显示驱动电路、其驱动方法及显示装置
CN110890052A (zh) * 2019-11-29 2020-03-17 Tcl华星光电技术有限公司 驱动电路、驱动方法及显示装置
CN113948036A (zh) * 2020-07-16 2022-01-18 华源智信半导体(深圳)有限公司 用于显示装置中的分布式驱动电路的寻址和冗余方案
CN114283740A (zh) * 2020-09-18 2022-04-05 华源智信半导体(深圳)有限公司 显示装置和用于显示装置的驱动器电路
CN115457901A (zh) * 2022-08-16 2022-12-09 华源智信半导体(深圳)有限公司 分布式驱动电路及控制方法、显示设备

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