WO2020206805A1 - 一种显示面板及其驱动方法 - Google Patents

一种显示面板及其驱动方法 Download PDF

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Publication number
WO2020206805A1
WO2020206805A1 PCT/CN2019/086968 CN2019086968W WO2020206805A1 WO 2020206805 A1 WO2020206805 A1 WO 2020206805A1 CN 2019086968 W CN2019086968 W CN 2019086968W WO 2020206805 A1 WO2020206805 A1 WO 2020206805A1
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WO
WIPO (PCT)
Prior art keywords
control unit
driving
module
split body
electrically connected
Prior art date
Application number
PCT/CN2019/086968
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English (en)
French (fr)
Inventor
黄生
Original Assignee
深圳市华星光电技术有限公司
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Application filed by 深圳市华星光电技术有限公司 filed Critical 深圳市华星光电技术有限公司
Priority to US16/622,915 priority Critical patent/US20220020335A1/en
Publication of WO2020206805A1 publication Critical patent/WO2020206805A1/zh

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Classifications

    • 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
    • G09G3/34—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 by control of light from an independent source
    • G09G3/3406—Control of illumination source
    • G09G3/342—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines
    • 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
    • G09G3/34—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 by control of light from an independent source
    • G09G3/3406—Control of illumination source
    • G09G3/342—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines
    • G09G3/3426—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines the different display panel areas being distributed in two dimensions, e.g. matrix
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • 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
    • G09G2310/0202—Addressing of scan or signal lines
    • G09G2310/0221—Addressing of scan or signal lines with use of split matrices
    • 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
    • G09G2310/08—Details of timing specific for flat panels, other than clock recovery
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0257—Reduction of after-image effects
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0686—Adjustment of display parameters with two or more screen areas displaying information with different brightness or colours
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/04—Display device controller operating with a plurality of display units

Definitions

  • the present invention relates to the field of display technology, in particular to a display panel and a driving method thereof.
  • TCON Timer Control Board, central control board
  • MCU Microcontroller Unit, micro control unit
  • LED Driver liquid crystal drive
  • TCON performs partition sampling and brightness statistics on the input full-screen image, and sends the backlight driving data to the MCU in real time through the SPI1 (serial peripheral interface) interface.
  • SPI1 serial peripheral interface
  • the MCU addresses through SPI2 and locates the LED Driver IC where the partition is located.
  • PWM pulse width modulation
  • turning on the specific output channel of the corresponding IC can realize the simultaneous display of the backlight source and the image screen in this area, which can greatly reduce the power consumption of the backlight and increase the contrast of the display screen.
  • the current technical solution is limited by the chip select address range of the LED Driver IC, and one MCU can only be used to drive less than 30 LED Driver ICs, which cannot meet the requirements of products with a higher number of backlight partitions.
  • the current technical solution is limited by the chip select address range of the LED Driver IC.
  • One MCU can only be used to drive less than 30 LED Driver ICs, which cannot meet the requirements of products with a higher number of backlight partitions.
  • a display panel includes a backlight module and a display body; the backlight module includes:
  • a control module which includes a first control unit and a second control unit that are electrically connected to the central control board, and the central control board provides backlight driving data for the control module;
  • the drive module provides control signals
  • the display screen body has a light-emitting area, and the light-emitting diodes are arranged corresponding to the light-emitting area;
  • the display screen body includes a first split body and a second split body, and the light emitting diode corresponding to the first split body is electrically connected to the first driving module and corresponds to the second split body
  • the light emitting diode is electrically connected to the second driving module; the first split body is the left half screen, and the second split body is the right half screen; or the first split body is the upper half screen,
  • the second split is the lower half of the screen.
  • first driving module and the second driving module each include at least one driving unit
  • the light-emitting areas on the first split body and the second split body each include a one-to-one correspondence with the driving unit
  • the light emitting diode corresponding to the partition is electrically connected to the corresponding driving unit.
  • the central control board has a semiconductor field effect tube, a clock signal line, a first pin, and a second pin; the first control unit and the first pin, the semiconductor field effect tube, and the The clock signal line is electrically connected, and the second control unit is electrically connected with the second pin, the semiconductor field effect transistor and the clock signal line.
  • the central control board provides a first chip select signal voltage to the first control unit through the first pin, and the central control board provides a second chip select signal voltage to the first control unit through the second pin.
  • the second control unit provides a first chip select signal voltage to the first control unit through the first pin, and the central control board provides a second chip select signal voltage to the first control unit through the second pin.
  • a display panel includes a backlight module and a display body; the backlight module includes:
  • a control module which includes a first control unit and a second control unit that are electrically connected to the central control board, and the central control board provides backlight driving data for the control module;
  • the drive module provides control signals
  • the display screen body has a light-emitting area, and the light-emitting diodes are arranged corresponding to the light-emitting area;
  • the display screen body includes a first split body and a second split body, and the light emitting diode corresponding to the first split body is electrically connected to the first driving module and corresponds to the second split body The light-emitting diode is electrically connected to the second driving module.
  • first driving module and the second driving module each include at least one driving unit
  • the light-emitting areas on the first split body and the second split body each include a one-to-one correspondence with the driving unit
  • the light emitting diode corresponding to the partition is electrically connected to the corresponding driving unit.
  • the central control board has a semiconductor field effect tube, a clock signal line, a first pin, and a second pin; the first control unit and the first pin, the semiconductor field effect tube, and the The clock signal line is electrically connected, and the second control unit is electrically connected with the second pin, the semiconductor field effect transistor and the clock signal line.
  • the central control board provides a first chip select signal voltage to the first control unit through the first pin, and the central control board provides a second chip select signal voltage to the first control unit through the second pin.
  • the second control unit provides a first chip select signal voltage to the first control unit through the first pin, and the central control board provides a second chip select signal voltage to the first control unit through the second pin.
  • first split is the left half of the screen
  • second split is the right half of the screen
  • first split is the upper half of the screen
  • second split is the lower half of the screen
  • the present invention also provides a driving method of a display panel, including the following steps:
  • the central control board provides backlight driving data for the first control unit and the second control unit;
  • the first control unit provides a control signal to the first driving module, and the first driving module controls the opening and closing of the light-emitting diode corresponding to the first split body;
  • the second control unit provides a control signal to the second driving module, and the second driving module controls the on and off of the light emitting diode corresponding to the second split body.
  • step S10 includes:
  • the central control board pulls down the first chip selection signal provided by the first pin, and sends the backlight driving data to the first control unit through the semiconductor field effect tube and the clock signal line;
  • the central control board raises the first chip select signal provided by the first pin, and exits the enablement of the first control unit;
  • the central control board pulls down the second chip selection signal provided by the second pin, and sends the backlight driving data to the second control unit through the semiconductor field effect tube and the clock signal line.
  • first driving module and the second driving module each include at least one driving unit
  • the light-emitting areas on the first split body and the second split body each include a one-to-one correspondence with the driving unit
  • the light emitting diode corresponding to the partition is electrically connected to the corresponding driving unit.
  • first split is the left half of the screen, and the second split is the right half of the screen; or the first split is the upper half of the screen, and the second split is the lower half of the screen.
  • At least two control modules are mounted on a central control board at the same time, and more drive modules are controlled by a larger number of control modules, and at the same time, the display body is divided into the same number as the number of drive modules, and each Part of it is driven by the corresponding drive module, so that the number of backlight partitions can be increased without increasing the central control board, which can increase the contrast of the display panel's display screen, the number of gray levels, and reduce the residual image, etc., for better viewing effect.
  • FIG. 1 is a schematic diagram of the composition of a backlight module in a specific embodiment of the present invention
  • Figure 2 is a schematic diagram of a display screen in an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of the distribution of partitions in a specific embodiment of the present invention.
  • FIG. 4 is a schematic diagram of the driving sequence of the backlight module in the specific embodiment of the present invention.
  • Figure 5 is a schematic diagram of a display screen in another embodiment of the present invention.
  • FIG. 6 is a schematic diagram of driving steps of a display panel in a specific embodiment of the present invention.
  • the present invention aims at the existing display panel, limited by the chip selection address range of the control unit, one control module can only be used to drive less than 30 control units, which cannot meet the technical problem of products with a higher number of backlight partitions.
  • the present invention can solve the above problems.
  • a display panel as shown in Figures 1 and 2, includes a backlight module and a display body 10; the backlight module includes a central control board 20, a control module, a first drive module 41, a second drive module 42, and Multiple light emitting diodes 50.
  • the central control board 20 has a semiconductor field effect transistor MOS, a clock signal line CLK, a first pin CS1 and a second pin CS2.
  • control module includes a first control unit 31 and a second control unit 32 electrically connected to the central control board 20.
  • the first driving module 41 is electrically connected to the first control unit 31, and the second driving module 42 is electrically connected to the second control unit 32.
  • the display screen body 10 has a light-emitting area 13, and the light-emitting diode 50 is arranged corresponding to the light-emitting area 13.
  • the central control board 20 provides backlight driving data for the control module, and after the control module performs addressing and positioning according to the received backlight driving data, it provides the first driving module 41 and the second driving module 41
  • the drive module 42 provides control signals.
  • the display screen body 10 includes a first split body 11 and a second split body 12.
  • the light emitting diode 50 corresponding to the first split body 11 is electrically connected to the first driving module 41, and is The light emitting diode 50 corresponding to the second split body 12 is electrically connected to the second driving module 42.
  • At least two control modules are mounted on a central control board 20 at the same time, more drive modules are controlled by a larger number of control modules, and at the same time, the display body 10 is divided into the same number of parts as the number of drive modules, and Each part is driven by the corresponding drive module, so that the number of backlight partitions can be increased without increasing the central control board 20, which can increase the contrast, the number of gray scales, and reduce the residual image of the display panel. Good viewing effect.
  • the first control unit 31 is electrically connected to the first pin CS1, the semiconductor field effect transistor MOS, and the clock signal line CLK
  • the second control unit 32 is electrically connected to the second lead The pin CS2, the semiconductor field effect transistor MOS and the clock signal line CLK are electrically connected.
  • the central control board 20 provides the first chip selection signal voltage Cs1 to the first control unit 31 through the first pin CS1, and the central control board 20 provides the first chip selection signal voltage Cs1 through the second pin CS2.
  • the two chip selection signal voltage Cs2 is given to the second control unit 32.
  • the first drive module 41 and the second drive module 42 each include at least one drive unit 43, and the first split body 11 and the second split body 12
  • Each of the light-emitting areas 13 includes partitions corresponding to the driving units 43 one-to-one, and the light-emitting diodes 50 corresponding to the partitions are electrically connected to the corresponding driving units 43.
  • the number of drive units 43 in one drive module is 1-30, and the number of the partitions is greater than 500.
  • the first control unit 31 and the second control unit 32 share the data lines on the central control board 20.
  • the central control board 20 performs partition sampling and brightness statistics on the input full-screen image.
  • the first chip selection signal voltage Cs1 is first pulled down within one frame of scanning time, the first control unit 31 is selected, and the backlight driving data of all the partitions in the first sub-body 11 is sent through the clock signal line CLK and the semiconductor field effect transistor MOS to the The first control unit 31; then, the central control board 20 pulls up the first chip selection signal voltage Cs1, exits the enablement of the first control unit 31, then pulls down the first chip selection signal voltage Cs2, and selects the second control unit 32, The backlight driving data of all the partitions in the second sub-body 12 are sent to the second control unit 32 through the clock signal line CLK and the semiconductor field effect transistor MOS.
  • the first control unit 31 and the second control unit 32 will send the data to the driving unit 43 corresponding to the specific partition, so as to drive the light emitting diode 50 in the specific partition. Light up and wait for the next frame of data update.
  • the first split body 11 is the upper half of the screen
  • the second split body 12 is the lower half of the screen.
  • the first split body 11 is the left half screen
  • the second split body 12 is the right half screen
  • the present invention also provides a driving method of the display panel, as shown in FIG. 6, including the following steps:
  • the central control board 20 provides backlight driving data for the first control unit 31 and the second control unit 32;
  • the first control unit 31 provides a control signal to the first driving module 41, and the first driving module 41 controls the opening and closing of the light emitting diode 50 corresponding to the first split body 11;
  • the second control unit 32 provides a control signal to the second driving module 42, and the second driving module 42 controls the opening and closing of the light emitting diode 50 corresponding to the second split body 12.
  • step S10 includes:
  • the central control board 20 pulls down the first chip selection signal Cs1 provided by the first pin CS1, and sends the backlight driving data to the first control through the semiconductor field effect transistor MOS and the clock signal line CLK Unit 31;
  • the central control board 20 raises the first chip selection signal Cs1 provided by the first pin CS1, and exits the enabling of the first control unit 31;
  • the central control board 20 pulls down the second chip selection signal Cs2 provided by the second pin CS2, and sends the backlight driving data to the second control unit 32 through the semiconductor field effect transistor MOS and the clock signal line CLK.
  • the first driving module 41 and the second driving module 42 each include at least one driving unit 43, and the light-emitting areas 13 on the first split body 11 and the second split body 12 both include
  • the drive unit 43 has a one-to-one corresponding partition, and the light emitting diode 50 corresponding to the partition is electrically connected to the corresponding drive unit 43.
  • the first split 11 is the left half screen, and the second split 12 is the right half screen; or the first split 11 is the upper half screen, and the second split 12 is the lower half. Screen.
  • the beneficial effects of the present invention are: at least two control modules are mounted on a central control board 20 at the same time, more driving modules are controlled by a greater number of control modules, and at the same time, the display screen body 10 is divided into a number and a driving module. The same number of parts, and each part is driven by the corresponding drive module, so that the number of backlight partitions can be increased without increasing the central control board 20, thereby improving the contrast, number of gray levels, and Reduce afterimages, etc., and play a better viewing effect.

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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)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)
  • Liquid Crystal Display Device Control (AREA)

Abstract

一种显示面板，包括背光模组、第一分体（11）和第二分体（12）；背光模组包括控制模块、第一驱动模块（41）、第二驱动模块（42）以及发光二极管（50）；控制模块包括与第一驱动模块（41）连接的第一控制单元（31）和与第二驱动模块（42）连接的第二控制单元（32）；第一分体（11）中的发光二极管（50）与第一驱动模块（41）连接，第二分体（12）中的发光二极管（50）与第二驱动模块（42）电性连接。

Description

一种显示面板及其驱动方法 技术领域
本发明涉及显示技术领域，尤其涉及一种显示面板及其驱动方法。
 背景技术
目前，TCON（Timer Control Board，中心控制板）控制局部背光调节技术（Local Dimming）广泛应用于TV背光驱动方案中，上述系统主要由TCON、MCU（Microcontroller Unit，微控制单元）和LED Driver（液晶驱动）IC三个部分组成。TCON对输入的全屏图像进行分区采样与亮度统计，并通过SPI1（串行外设接口）接口实时发送背光驱动数据给MCU，MCU再通过SPI2进行寻址、定位到该分区所在的LED Driver IC，使用脉宽调制（PWM）的方式，打开对应IC的特定输出通道，即可实现该区域的背光源与图像画面同时显示，可大幅降低背光耗电量，提高显示画面的对比度。
然而，目前技术方案受LED Driver IC的片选地址范围限制，一颗MCU只能用于驱动小于30颗LED Driver IC，无法满足背光分区数更高的产品。
 技术问题
目前技术方案受LED Driver IC的片选地址范围限制，一颗MCU只能用于驱动小于30颗LED Driver IC，无法满足背光分区数更高的产品。
 技术解决方案
一种显示面板，包括背光模组和显示屏体；所述背光模组包括：
中心控制板；
控制模块，其包括与所述中心控制板电性连接的第一控制单元和第二控制单元，所述中心控制板为所述控制模块提供背光驱动数据；
与所述第一控制单元电性连接的第一驱动模块，以及，与所述第二控制单元电性连接的第二驱动模块，所述控制模块为所述第一驱动模块和所述第二驱动模块提供控制信号；
多个发光二极管，所述显示屏体具有发光区，所述发光二极管与所述发光区对应设置；
其中，所述显示屏体包括第一分体和第二分体，与所述第一分体对应的所述发光二极管与所述第一驱动模块电性连接，与所述第二分体对应的所述发光二极管与所述第二驱动模块电性连接；所述第一分体为左半屏，所述第二分体为右半屏；或所述第一分体为上半屏，所述第二分体为下半屏。
进一步的，所述第一驱动模块和所述第二驱动模块均包括至少一个驱动单元，所述第一分体和所述第二分体上的发光区均包括与所述驱动单元一一对应的分区，与所述分区对应的所述发光二极管与对应的驱动单元电性连接。
进一步的，所述中心控制板具有半导体场效应管、时钟信号线、第一引脚以及第二引脚；所述第一控制单元与所述第一引脚、所述半导体场效应管以及所述时钟信号线电性连接，所述第二控制单元与所述第二引脚、所述半导体场效应管以及所述时钟信号线电性连接。
进一步的，所述中心控制板通过所述第一引脚提供第一片选信号电压给所述第一控制单元，所述中心控制板通过所述第二引脚提供第二片选信号电压给所述第二控制单元。
一种显示面板，包括背光模组和显示屏体；所述背光模组包括：
中心控制板；
控制模块，其包括与所述中心控制板电性连接的第一控制单元和第二控制单元，所述中心控制板为所述控制模块提供背光驱动数据；
与所述第一控制单元电性连接的第一驱动模块，以及，与所述第二控制单元电性连接的第二驱动模块，所述控制模块为所述第一驱动模块和所述第二驱动模块提供控制信号；
多个发光二极管，所述显示屏体具有发光区，所述发光二极管与所述发光区对应设置；
其中，所述显示屏体包括第一分体和第二分体，与所述第一分体对应的所述发光二极管与所述第一驱动模块电性连接，与所述第二分体对应的所述发光二极管与所述第二驱动模块电性连接。
进一步的，所述第一驱动模块和所述第二驱动模块均包括至少一个驱动单元，所述第一分体和所述第二分体上的发光区均包括与所述驱动单元一一对应的分区，与所述分区对应的所述发光二极管与对应的驱动单元电性连接。
进一步的，所述中心控制板具有半导体场效应管、时钟信号线、第一引脚以及第二引脚；所述第一控制单元与所述第一引脚、所述半导体场效应管以及所述时钟信号线电性连接，所述第二控制单元与所述第二引脚、所述半导体场效应管以及所述时钟信号线电性连接。
进一步的，所述中心控制板通过所述第一引脚提供第一片选信号电压给所述第一控制单元，所述中心控制板通过所述第二引脚提供第二片选信号电压给所述第二控制单元。
进一步的，所述第一分体为左半屏，所述第二分体为右半屏。
进一步的，所述第一分体为上半屏，所述第二分体为下半屏。
本发明还提供一种显示面板的驱动方法，包括以下步骤：
S10、中心控制板为第一控制单元和第二控制单元提供背光驱动数据；
S20、第一控制单元提供控制信号给第一驱动模块，通过所述第一驱动模块控制与第一分体对应的发光二极管的启闭；
S30、第二控制单元提供控制信号给第二驱动模块，通过所述第二驱动模块控制与第二分体对应的发光二极管的启闭。
进一步的，所述步骤S10包括：
S11、在一帧扫描时间内，中心控制板拉低第一引脚提供的第一片选信号，通过半导体场效应管和时钟信号线发送背光驱动数据给所述第一控制单元；
S12、中心控制板拉高第一引脚提供的第一片选信号，退出第一控制单元的使能；
S13、中心控制板拉低第二引脚提供的第二片选信号，通过半导体场效应管和时钟信号线发送背光驱动数据给所述第二控制单元。
进一步的，所述第一驱动模块和所述第二驱动模块均包括至少一个驱动单元，所述第一分体和所述第二分体上的发光区均包括与所述驱动单元一一对应的分区，与所述分区对应的所述发光二极管与对应的驱动单元电性连接。
进一步的，所述第一分体为左半屏，所述第二分体为右半屏；或所述第一分体为上半屏，所述第二分体为下半屏。
 有益效果
在一个中心控制板上同时挂载至少两颗控制模块，通过更多数量的控制模块来控制更多的驱动模块，同时通过将显示屏体分成数量与驱动模块的数量相同的部分，并且每个部分通过对应的驱动模块进行驱动，从而在不增加中心控制板的前提下，增加背光分区数，从而可提高显示面板显示画面的对比度、灰阶数、及减少残影等，发挥更佳的观赏效果。
 附图说明
为了更清楚地说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介绍，显而易见地，下面描述中的附图仅仅是发明的一些实施例，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为本发明具体实施方式中背光模组的组成示意图；
图2为本发明一实施方式中显示屏体的示意图；
图3为本发明具体实施方式中分区的分布示意图；
图4为本发明具体实施方式中背光模组的驱动时序示意图；
图5为本发明另一实施方式中显示屏体的示意图；
图6为本发明具体实施方式中显示面板的驱动步骤示意图。
附图标记：
10、显示屏体；11、第一分体；12、第二分体；13、发光区；20、中心控制板；31、第一控制单元；32、第二控制单元；41、第一驱动模块；42、第二驱动模块；43、驱动单元；50、发光二极管。
 本发明的实施方式
以下各实施例的说明是参考附加的图示，用以例示本发明可用以实施的特定实施例。本发明所提到的方向用语，例如[上]、[下]、[前]、[后]、[左]、[右]、[内]、[外]、[侧面]等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本发明，而非用以限制本发明。在图中，结构相似的单元是用以相同标号表示。
本发明针对现有的显示面板中，受控制单元的片选地址范围限制，一颗控制模块只能用于驱动小于30颗控制单元，无法满足背光分区数更高的产品的技术问题。本发明可以技术上述问题。
一种显示面板，如图1和图2所示，包括背光模组和显示屏体10；所述背光模组包括中心控制板20、控制模块、第一驱动模块41、第二驱动模块42以及多个发光二极管50。
其中，所述中心控制板20具有半导体场效应管MOS、时钟信号线CLK、第一引脚CS1以及第二引脚CS2。
其中，所述控制模块包括与所述中心控制板20电性连接的第一控制单元31和第二控制单元32。
其中，所述第一驱动模块41与所述第一控制单元31电性连接，所述第二驱动模块42与所述第二控制单元32电性连接。
其中，所述显示屏体10具有发光区13，所述发光二极管50与所述发光区13对应设置。
具体的，所述中心控制板20为所述控制模块提供背光驱动数据，所述控制模块根据接收到的背光驱动数据进行寻址和定位后，为所述第一驱动模块41和所述第二驱动模块42提供控制信号。
其中，所述显示屏体10包括第一分体11和第二分体12，与所述第一分体11对应的所述发光二极管50与所述第一驱动模块41电性连接，与所述第二分体12对应的所述发光二极管50与所述第二驱动模块42电性连接。
在一个中心控制板20上同时挂载至少两颗控制模块，通过更多数量的控制模块来控制更多的驱动模块，同时通过将显示屏体10分成数量与驱动模块的数量相同的部分，并且每个部分通过对应的驱动模块进行驱动，从而在不增加中心控制板20的前提下，增加背光分区数，从而可提高显示面板显示画面的对比度、灰阶数、及减少残影等，发挥更佳的观赏效果。
具体的，所述第一控制单元31与所述第一引脚CS1、所述半导体场效应管MOS以及所述时钟信号线CLK电性连接，所述第二控制单元32与所述第二引脚CS2、所述半导体场效应管MOS以及所述时钟信号线CLK电性连接。
具体的，所述中心控制板20通过所述第一引脚CS1提供第一片选信号电压Cs1给所述第一控制单元31，所述中心控制板20通过所述第二引脚CS2提供第二片选信号电压Cs2给所述第二控制单元32。
具体的，参见图1和图3，所述第一驱动模块41和所述第二驱动模块42均包括至少一个驱动单元43，所述第一分体11和所述第二分体12上的发光区13均包括与所述驱动单元43一一对应的分区，与所述分区对应的所述发光二极管50与对应的驱动单元43电性连接。
进一步的，一个驱动模块中的驱动单元43的数量为1～30颗，所述分区的数量大于500。
如图4所示，第一控制单元31和第二控制单元32共用中心控制板20上的数据线，显示面板发光时，中心控制板20对输入的全屏图像进行分区采样与亮度统计后，在一帧扫描时间内首先拉低第一片选信号电压Cs1，选中第一控制单元31，通过钟信号线CLK、半导体场效应管MOS发送第一分体11中所有分区的背光驱动数据给所述第一控制单元31；之后，中心控制板20拉高第一片选信号电压Cs1，退出第一控制单元31的使能，再拉低第一片选信号电压Cs2，选中第二控制单元32，通过钟信号线CLK、半导体场效应管MOS发送第二分体12中所有分区的背光驱动数据给所述第二控制单元32。
其中，第一控制单元31和第二控制单元32在接收完对应的背光驱动数据之后，会将这些数据下发到与特定分区对应的驱动单元43中，从而来驱动特定分区中的发光二极管50发光，并等待着下一帧数据更新。
在一实施方式中，所述第一分体11为上半屏，所述第二分体12为下半屏。
在另一实施方式中，如图5所示，所述第一分体11为左半屏，所述第二分体12为右半屏。
基于上述显示面板，本发明还提供一种显示面板的驱动方法，如图6所示，包括以下步骤：
S10、中心控制板20为第一控制单元31和第二控制单元32提供背光驱动数据；
S20、第一控制单元31提供控制信号给第一驱动模块41，通过所述第一驱动模块41控制与第一分体11对应的发光二极管50的启闭；
S30、第二控制单元32提供控制信号给第二驱动模块42，通过所述第二驱动模块42控制与第二分体12对应的发光二极管50的启闭。
进一步的，所述步骤S10包括：
S11、在一帧扫描时间内，中心控制板20拉低第一引脚CS1提供的第一片选信号Cs1，通过半导体场效应管MOS和时钟信号线CLK发送背光驱动数据给所述第一控制单元31；
S12、中心控制板20拉高第一引脚CS1提供的第一片选信号Cs1，退出第一控制单元31的使能；
S13、中心控制板20拉低第二引脚CS2提供的第二片选信号Cs2，通过半导体场效应管MOS和时钟信号线CLK发送背光驱动数据给所述第二控制单元32。
具体的，所述第一驱动模块41和所述第二驱动模块42均包括至少一个驱动单元43，所述第一分体11和所述第二分体12上的发光区13均包括与所述驱动单元43一一对应的分区，与所述分区对应的所述发光二极管50与对应的驱动单元43电性连接。
具体的，所述第一分体11为左半屏，所述第二分体12为右半屏；或所述第一分体11为上半屏，所述第二分体12为下半屏。
本发明的有益效果为：在一个中心控制板20上同时挂载至少两颗控制模块，通过更多数量的控制模块来控制更多的驱动模块，同时通过将显示屏体10分成数量与驱动模块的数量相同的部分，并且每个部分通过对应的驱动模块进行驱动，从而在不增加中心控制板20的前提下，增加背光分区数，从而可提高显示面板显示画面的对比度、灰阶数、及减少残影等，发挥更佳的观赏效果。
综上所述，虽然本发明已以优选实施例揭露如上，但上述优选实施例并非用以限制本发明，本领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为准。

Claims (14)

  1. 一种显示面板，其中，包括背光模组和显示屏体；所述背光模组包括：
    中心控制板；
    控制模块，其包括与所述中心控制板电性连接的第一控制单元和第二控制单元，所述中心控制板为所述控制模块提供背光驱动数据；
    与所述第一控制单元电性连接的第一驱动模块，以及，与所述第二控制单元电性连接的第二驱动模块，所述控制模块为所述第一驱动模块和所述第二驱动模块提供控制信号；
    多个发光二极管，所述显示屏体具有发光区，所述发光二极管与所述发光区对应设置；
    其中，所述显示屏体包括第一分体和第二分体，与所述第一分体对应的所述发光二极管与所述第一驱动模块电性连接，与所述第二分体对应的所述发光二极管与所述第二驱动模块电性连接；所述第一分体为左半屏，所述第二分体为右半屏；或所述第一分体为上半屏，所述第二分体为下半屏。
  2. 根据权利要求1所述的显示面板，其中，所述第一驱动模块和所述第二驱动模块均包括至少一个驱动单元，所述第一分体和所述第二分体上的发光区均包括与所述驱动单元一一对应的分区，与所述分区对应的所述发光二极管与对应的驱动单元电性连接。
  3. 根据权利要求1所述的显示面板，其中，所述中心控制板具有半导体场效应管、时钟信号线、第一引脚以及第二引脚；所述第一控制单元与所述第一引脚、所述半导体场效应管以及所述时钟信号线电性连接，所述第二控制单元与所述第二引脚、所述半导体场效应管以及所述时钟信号线电性连接。
  4. 根据权利要求3所述的显示面板，其中，所述中心控制板通过所述第一引脚提供第一片选信号电压给所述第一控制单元，所述中心控制板通过所述第二引脚提供第二片选信号电压给所述第二控制单元。
  5. 一种显示面板，其中，包括背光模组和显示屏体；所述背光模组包括：
    中心控制板；
    控制模块，其包括与所述中心控制板电性连接的第一控制单元和第二控制单元，所述中心控制板为所述控制模块提供背光驱动数据；
    与所述第一控制单元电性连接的第一驱动模块，以及，与所述第二控制单元电性连接的第二驱动模块，所述控制模块为所述第一驱动模块和所述第二驱动模块提供控制信号；
    多个发光二极管，所述显示屏体具有发光区，所述发光二极管与所述发光区对应设置；
    其中，所述显示屏体包括第一分体和第二分体，与所述第一分体对应的所述发光二极管与所述第一驱动模块电性连接，与所述第二分体对应的所述发光二极管与所述第二驱动模块电性连接。
  6. 根据权利要求5所述的显示面板，其中，所述第一驱动模块和所述第二驱动模块均包括至少一个驱动单元，所述第一分体和所述第二分体上的发光区均包括与所述驱动单元一一对应的分区，与所述分区对应的所述发光二极管与对应的驱动单元电性连接。
  7. 根据权利要求5所述的显示面板，其中，所述中心控制板具有半导体场效应管、时钟信号线、第一引脚以及第二引脚；所述第一控制单元与所述第一引脚、所述半导体场效应管以及所述时钟信号线电性连接，所述第二控制单元与所述第二引脚、所述半导体场效应管以及所述时钟信号线电性连接。
  8. 根据权利要求7所述的显示面板，其中，所述中心控制板通过所述第一引脚提供第一片选信号电压给所述第一控制单元，所述中心控制板通过所述第二引脚提供第二片选信号电压给所述第二控制单元。
  9. 根据权利要求1所述的显示面板，其中，所述第一分体为左半屏，所述第二分体为右半屏。
  10. 根据权利要求1所述的显示面板，其中，所述第一分体为上半屏，所述第二分体为下半屏。
  11. 一种显示面板的驱动方法，其中，包括以下步骤：
    S10、中心控制板为第一控制单元和第二控制单元提供背光驱动数据；
    S20、第一控制单元提供控制信号给第一驱动模块，通过所述第一驱动模块控制与第一分体对应的发光二极管的启闭；
    S30、第二控制单元提供控制信号给第二驱动模块，通过所述第二驱动模块控制与第二分体对应的发光二极管的启闭。
  12. 根据权利要求11所述的显示面板的驱动方法，其中，所述步骤S10包括：
    S11、在一帧扫描时间内，中心控制板拉低第一引脚提供的第一片选信号，通过半导体场效应管和时钟信号线发送背光驱动数据给所述第一控制单元；
    S12、中心控制板拉高第一引脚提供的第一片选信号，退出第一控制单元的使能；
    S13、中心控制板拉低第二引脚提供的第二片选信号，通过半导体场效应管和时钟信号线发送背光驱动数据给所述第二控制单元。
  13. 根据权利要求12所述的显示面板的驱动方法，其中，所述第一驱动模块和所述第二驱动模块均包括至少一个驱动单元，所述第一分体和所述第二分体上的发光区均包括与所述驱动单元一一对应的分区，与所述分区对应的所述发光二极管与对应的驱动单元电性连接。
  14. 根据权利要求11所述的显示面板的驱动方法，其中，所述第一分体为左半屏，所述第二分体为右半屏；或所述第一分体为上半屏，所述第二分体为下半屏。
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