WO2019015059A1 - 液晶显示面板的驱动方法 - Google Patents

液晶显示面板的驱动方法 Download PDF

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Publication number
WO2019015059A1
WO2019015059A1 PCT/CN2017/101191 CN2017101191W WO2019015059A1 WO 2019015059 A1 WO2019015059 A1 WO 2019015059A1 CN 2017101191 W CN2017101191 W CN 2017101191W WO 2019015059 A1 WO2019015059 A1 WO 2019015059A1
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Prior art keywords
picture frame
liquid crystal
crystal display
display panel
sub
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PCT/CN2017/101191
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English (en)
French (fr)
Inventor
张先明
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Shenzhen China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Shenzhen China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Priority to US15/575,233 priority Critical patent/US20190027107A1/en
Publication of WO2019015059A1 publication Critical patent/WO2019015059A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • G09G3/36—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 using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
    • 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
    • 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
    • G09G3/36—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 using liquid crystals
    • 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
    • G09G2320/0252—Improving the response speed
    • 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
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness
    • G09G2320/064—Adjustment of display parameters for control of overall brightness by time modulation of the brightness of the illumination source
    • 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
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness
    • G09G2320/0646—Modulation of illumination source brightness and image signal correlated to each other
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02—Details of power systems and of start or stop of display operation
    • G09G2330/021—Power management, e.g. power saving

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a driving method of a liquid crystal display panel.
  • liquid crystal display panels have been fully utilized in various fields of society, and at the same time, people have higher and higher requirements on the display quality of liquid crystal display panels.
  • the liquid crystal Due to the inherent characteristics of the liquid crystal in the liquid crystal layer of the liquid crystal display panel, it takes a period of time for the liquid crystal to perform the steering operation in the liquid crystal layer. For example, when the liquid crystal performs the steering operation, the display content in the liquid crystal display panel is seen by the human eye, and the image smear occurs. phenomenon. Especially for dynamic pictures, due to the rapid changes in the content of the picture, the phenomenon of picture smear will be more serious.
  • Over Driving mode drives the liquid crystal display panel, which can compress the image smear phenomenon to a specific frame frame, thereby reducing the image smear phenomenon when the screen is displayed.
  • the driving method of the existing liquid crystal display panel cannot completely eliminate the smear phenomenon of the screen.
  • An object of the present invention is to provide a driving method of a liquid crystal display panel capable of completely eliminating the phenomenon of smear of a picture, so as to solve the technical problem that the driving method of the conventional liquid crystal display panel cannot completely eliminate the phenomenon of smear of the picture.
  • Embodiments of the present invention provide a driving method of a liquid crystal display panel, including:
  • each picture frame including a charging sub-picture frame and a display sub-picture frame;
  • the driving steps of each picture frame include:
  • the driving method of the liquid crystal display panel of the present invention when the charging sub-picture frame of the picture frame is driven, the data signal input by the pixel unit of the liquid crystal display panel; and when the display sub-picture frame of the picture frame is driven, The data signals input by the pixel units of the liquid crystal display panel are the same.
  • the pixel unit of the liquid crystal display panel when the charging sub-picture frame of the picture frame is driven, the pixel unit of the liquid crystal display panel inputs a corresponding data signal; when the display sub-picture frame of the picture frame is driven, The pixel unit of the liquid crystal display panel does not input a data signal.
  • the driving time of the charging sub-picture frame corresponding to each picture frame is the same as the driving time of the corresponding display sub-picture frame.
  • the display frequency of the picture frame is 120 Hz.
  • the driving time of the charging sub-picture frame corresponding to each picture frame is smaller than the driving time of the corresponding display sub-picture frame.
  • the display frequency of the picture frame is 120 Hz.
  • the embodiment of the invention further provides a driving method of a liquid crystal display panel, which comprises:
  • each picture frame including a charging sub-picture frame and a display sub-picture frame;
  • the driving steps of each picture frame include:
  • the display sub-picture frame of the picture frame is driven, and the corresponding backlight module is turned on.
  • the driving method of the liquid crystal display panel of the present invention when the charging sub-picture frame of the picture frame is driven, the data signal input by the pixel unit of the liquid crystal display panel; and when the display sub-picture frame of the picture frame is driven, The data signals input by the pixel units of the liquid crystal display panel are the same.
  • the pixel unit of the liquid crystal display panel when the charging sub-picture frame of the picture frame is driven, the pixel unit of the liquid crystal display panel inputs a corresponding data signal; when the display sub-picture frame of the picture frame is driven, The pixel unit of the liquid crystal display panel does not input a data signal.
  • the driving time of the charging sub-picture frame corresponding to each picture frame is the same as the driving time of the corresponding display sub-picture frame.
  • the display frequency of the picture frame is 120 Hz.
  • the driving time of the charging sub-picture frame corresponding to each picture frame is smaller than the driving time of the corresponding display sub-picture frame.
  • the display frequency of the picture frame is 120 Hz.
  • the step of driving the charging sub-picture frame of the picture frame and turning off the corresponding backlight module is:
  • the charging sub-picture frame of the picture frame is driven, and the backlight module is notified by the SPI protocol to perform synchronous shutdown.
  • the step of driving the display sub-picture frame of the picture frame and turning on the corresponding backlight module is:
  • the display sub-picture frame of the picture frame is driven, and the backlight module is notified by the SPI protocol to perform synchronization on.
  • the driving method of the liquid crystal display panel of the present invention can effectively eliminate the image smear phenomenon by dividing the picture frame into the charging sub-picture frame and the display sub-picture frame, thereby turning off the backlight module in the charging sub-picture frame stage; and solving the existing liquid crystal display
  • the panel driving method cannot completely eliminate the technical problem of the image smear phenomenon.
  • FIG. 1 is a flow chart of a preferred embodiment of a method of driving a liquid crystal display panel of the present invention.
  • FIG. 1 is a flow chart of a preferred embodiment of a method for driving a liquid crystal display panel of the present invention.
  • the driving method of the liquid crystal display panel of the preferred embodiment includes:
  • Step S101 Acquire all picture frames in the content of the display screen, where each picture frame includes a charging sub-picture frame and a display sub-picture frame;
  • step S102 all the picture frames in the display screen content are sequentially driven.
  • step S101 the liquid crystal display panel acquires all the picture frames of the display picture content, wherein each picture frame of the display picture content includes a charging sub-picture frame and a display sub-picture frame.
  • the charging sub-picture frame is a sub-picture frame for performing data signal charging processing on the pixel unit of the liquid crystal display panel.
  • the liquid crystal molecules of the liquid crystal layer will be turned, that is, the user may watch the picture smear phenomenon when viewing the display picture content while charging the sub-picture frame.
  • the display sub-picture frame refers to a sub-picture frame in which the pixel unit of the liquid crystal display panel has started to be stably displayed.
  • the liquid crystal molecules of the liquid crystal layer have been stably turned, and the user can watch the display picture content when displaying the sub-picture frame, and the picture smear phenomenon does not occur at all. Then it proceeds to step S102.
  • step S102 the liquid crystal display panel sequentially drives all the picture frames in the display screen content acquired in step S101.
  • the driving steps of each picture frame include:
  • the liquid crystal display panel drives the charging sub-picture frame of the picture frame, and simultaneously closes the corresponding backlight module.
  • the liquid crystal molecules of the liquid crystal layer can be driven to be steered, and the user cannot view the corresponding display screen content at this time, so that no image smear phenomenon occurs.
  • the liquid crystal display panel drives the charging sub-picture frame of the picture frame
  • the liquid crystal display panel can pass the SPI protocol (Serial Peripheral) Interface, serial peripheral interface) informs the backlight module to perform synchronous shutdown to improve the synchronization of the charging sub-picture frame display and the backlight module off.
  • SPI protocol Serial Peripheral
  • serial peripheral interface informs the backlight module to perform synchronous shutdown to improve the synchronization of the charging sub-picture frame display and the backlight module off.
  • the liquid crystal display panel drives the display of the sub-picture frame of the picture frame, and simultaneously opens the corresponding backlight module. Since the liquid crystal molecules of the liquid crystal layer have already been turned in the charging sub-picture frame. At this time, the backlight module is turned on to allow the user to view the stable display screen content, and the screen smear phenomenon is also not generated.
  • the liquid crystal display panel drives the picture frame to display the sub-picture frame
  • the liquid crystal display panel can pass the SPI protocol (Serial Peripheral) Interface, serial peripheral interface) informs the backlight module to perform synchronous synchronization to improve the synchronization of the charging sub-picture frame display and the backlight module opening.
  • SPI protocol Serial Peripheral
  • serial peripheral interface informs the backlight module to perform synchronous synchronization to improve the synchronization of the charging sub-picture frame display and the backlight module opening.
  • the liquid crystal display panel can also perform PWM on the backlight module (Pulse Width) Modulation, pulse width modulation) dimming operation to adjust the brightness of the display screen of the picture frame.
  • PWM Pulse Width Modulation, pulse width modulation
  • the pixel unit of the liquid crystal display panel inputs a corresponding data signal; when the sub-picture frame of the picture frame is driven, the pixel unit of the liquid crystal display panel does not input the data signal.
  • the pixel unit at the time of displaying the sub-picture frame can ensure the normal display of the content of the display screen corresponding to the picture frame as long as the data signal of the current pixel unit can be maintained, thereby effectively reducing the energy consumption of the liquid crystal display panel.
  • the data signal input by the pixel unit of the liquid crystal display panel when the charging sub-picture frame of the picture frame is driven may be set; and the liquid crystal display frame of the driving picture frame is displayed.
  • the data signals input by the pixel units of the display panel are the same. This can avoid the influence of the leakage of the pixel unit on the display screen content of the display sub-picture frame.
  • the display frequency of the picture frame may be 120 Hz. If the driving time of the charging sub-picture frame corresponding to each picture frame is the same as the driving time of the corresponding display sub-picture frame, the sub-picture frame of the liquid crystal display panel (charging sub-picture frame) And display the sub-picture frame) display frequency is 240Hz. This makes it convenient for the user to set the charging sub-picture frame and display the sub-picture frame.
  • the driving time of the charging sub-picture frame corresponding to each picture frame may be smaller than the driving time of the corresponding display sub-picture frame, and the liquid crystal display is used in the charging sub-picture frame stage for a shorter time.
  • the liquid crystal molecules of the liquid crystal layer of the panel perform a deflection operation, and the display screen content of the picture frame can be displayed for a long time in the display sub-picture frame stage, so that the working time of the backlight module of each frame can be maximized. Therefore, the display brightness of each frame of the screen is improved, and the backlight power consumption of the backlight module corresponding to the liquid crystal display panel is reduced.
  • the driving method of the liquid crystal display panel of the present invention can effectively eliminate the image smear phenomenon by dividing the picture frame into the charging sub-picture frame and the display sub-picture frame, thereby turning off the backlight module in the charging sub-picture frame stage; and solving the existing liquid crystal display
  • the panel driving method cannot completely eliminate the technical problem of the image smear phenomenon.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Optics & Photonics (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal Display Device Control (AREA)

Abstract

一种液晶显示面板的驱动方法，其包括：获取显示画面内容中的所有画面帧，每个画面帧包括充电子画面帧以及显示子画面帧（S101）；依次驱动显示画面内容中的所有画面帧（S102）；其中每个画面帧的驱动步骤包括：驱动画面帧的充电子画面帧，并关闭对应的背光模块；驱动画面帧的显示子画面帧，并开启对应的背光模块。

Description

液晶显示面板的驱动方法 技术领域
本发明涉及显示技术领域，特别是涉及一种液晶显示面板的驱动方法。
 背景技术
随着科技的发展，液晶显示面板在社会的各个领域得到网络充分的利用，同时人们对液晶显示面板的画面显示品质要求也越来越高。
由于液晶显示面板中液晶层中液晶的固有特性，液晶层中液晶进行转向操作需要一段时间，如液晶进行转向操作时，液晶显示面板中的显示内容被人眼看到，则就会发生画面拖影现象。特别针对动态画面，由于画面内容的快速变化，画面拖影现象会更加严重。
目前有液晶显示面板的制造商采用过驱动（Over Driving）的方式对液晶显示面板进行驱动，可以将画面拖影现象压缩至特定的画面帧，从而降低画面显示时的画面拖影现象。但是现有的液晶显示面板的驱动方法并无法完全消除该画面拖影现象。
故，有必要提供一种液晶显示面板的驱动方法，以解决现有技术所存在的问题。
 技术问题
本发明的目的在于提供一种可完全消除画面拖影现象的液晶显示面板的驱动方法，以解决现有的液晶显示面板的驱动方法无法完全消除画面拖影现象的技术问题。
 技术解决方案
本发明实施例提供一种液晶显示面板的驱动方法，其包括：
获取显示画面内容中的所有画面帧，每个画面帧包括充电子画面帧以及显示子画面帧；以及
依次驱动所述显示画面内容中的所有画面帧；
其中每个画面帧的驱动步骤包括：
驱动所述画面帧的充电子画面帧，并通过SPI协议通知背光模块进行同步关闭；以及
驱动所述画面帧的显示子画面帧，并通过SPI协议通知背光模块进行同步开启；
当所述背光模块开启时，对所述背光模块进行PWM调光操作。
在本发明所述的液晶显示面板的驱动方法中，驱动所述画面帧的充电子画面帧时，液晶显示面板的像素单元输入的数据信号；与驱动所述画面帧的显示子画面帧时，液晶显示面板的像素单元输入的数据信号相同。
在本发明所述的液晶显示面板的驱动方法中，驱动所述画面帧的充电子画面帧时，液晶显示面板的像素单元输入对应的数据信号；驱动所述画面帧的显示子画面帧时，液晶显示面板的像素单元不输入数据信号。
在本发明所述的液晶显示面板的驱动方法中，每个画面帧对应的充电子画面帧的驱动时间与对应的显示子画面帧的驱动时间相同。
在本发明所述的液晶显示面板的驱动方法中，所述画面帧的显示频率为120Hz。
在本发明所述的液晶显示面板的驱动方法中，每个画面帧对应的充电子画面帧的驱动时间小于对应的显示子画面帧的驱动时间。
在本发明所述的液晶显示面板的驱动方法中，所述画面帧的显示频率为120Hz。
本发明实施例还提供一种液晶显示面板的驱动方法，其包括：
获取显示画面内容中的所有画面帧，每个画面帧包括充电子画面帧以及显示子画面帧；以及
依次驱动所述显示画面内容中的所有画面帧；
其中每个画面帧的驱动步骤包括：
驱动所述画面帧的充电子画面帧，并关闭对应的背光模块；以及
驱动所述画面帧的显示子画面帧，并开启对应的背光模块。
在本发明所述的液晶显示面板的驱动方法中，驱动所述画面帧的充电子画面帧时，液晶显示面板的像素单元输入的数据信号；与驱动所述画面帧的显示子画面帧时，液晶显示面板的像素单元输入的数据信号相同。
在本发明所述的液晶显示面板的驱动方法中，驱动所述画面帧的充电子画面帧时，液晶显示面板的像素单元输入对应的数据信号；驱动所述画面帧的显示子画面帧时，液晶显示面板的像素单元不输入数据信号。
在本发明所述的液晶显示面板的驱动方法中，每个画面帧对应的充电子画面帧的驱动时间与对应的显示子画面帧的驱动时间相同。
在本发明所述的液晶显示面板的驱动方法中，所述画面帧的显示频率为120Hz。
在本发明所述的液晶显示面板的驱动方法中，每个画面帧对应的充电子画面帧的驱动时间小于对应的显示子画面帧的驱动时间。
在本发明所述的液晶显示面板的驱动方法中，所述画面帧的显示频率为120Hz。
在本发明所述的液晶显示面板的驱动方法中，当所述背光模块开启时，对所述背光模块进行PWM调光操作。
在本发明所述的液晶显示面板的驱动方法中，所述驱动所述画面帧的充电子画面帧，并关闭对应的背光模块的步骤为：
驱动所述画面帧的充电子画面帧，并通过SPI协议通知背光模块进行同步关闭。
在本发明所述的液晶显示面板的驱动方法中，所述驱动所述画面帧的显示子画面帧，并开启对应的背光模块的步骤为：
驱动所述画面帧的显示子画面帧，并通过SPI协议通知背光模块进行同步开启。
 有益效果
本发明的液晶显示面板的驱动方法通过将画面帧划分为充电子画面帧和显示子画面帧，从而通过在充电子画面帧阶段关闭背光模块来有效消除画面拖影现象；解决现有的液晶显示面板的驱动方法无法完全消除画面拖影现象的技术问题。
 附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例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的前提下，还可以根据这些附图获得其他的附图。其中：
图1为本发明的液晶显示面板的驱动方法的优选实施例的流程图。
 本发明的最佳实施方式
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的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。
请参照图1，图1为本发明的液晶显示面板的驱动方法的优选实施例的流程图。本优选实施例的液晶显示面板的驱动方法包括：
步骤S101，获取显示画面内容中所有的画面帧，其中每个画面帧包括充电子画面帧以及显示子画面帧；
步骤S102，依次驱动显示画面内容中的所有画面帧。
下面详细说明本优选实施例的液晶显示面板的驱动方法的各步骤的具体流程。
在步骤S101中，液晶显示面板获取显示画面内容的所有画面帧，其中显示画面内容的每个画面帧包括充电子画面帧以及显示子画面帧。
其中充电子画面帧是对液晶显示面板的像素单元进行数据信号充电处理的子画面帧。在充电子画面帧中，液晶层的液晶分子会发生转向，即用户如在充电子画面帧时观看显示画面内容，可能会观看到画面拖影现象。
显示子画面帧是指液晶显示面板的像素单元已经开始稳定显示的子画面帧。在显示子画面帧中，液晶层的液晶分子已经稳定转向，用户如在显示子画面帧时观看显示画面内容，完全不会出现画面拖影现象。随后转到步骤S102。
在步骤S102中，液晶显示面板依次驱动步骤S101获取的显示画面内容中的所有画面帧。其中每个画面帧的驱动步骤包括：
首先液晶显示面板驱动画面帧的充电子画面帧，同时关闭对应的背光模块。这样可以驱动液晶层的液晶分子进行转向，同时用户此时无法观看到对应的显示画面内容，因此不会产生画面拖影现象。
液晶显示面板驱动画面帧的充电子画面帧时，液晶显示面板可通过SPI协议(Serial Peripheral Interface，串行外设接口）通知背光模块进行同步关闭，以提高充电子画面帧显示和背光模块关闭的同步性。
随后液晶显示面板驱动画面帧的显示子画面帧，同时开启对应的背光模块。由于液晶层的液晶分子在充电子画面帧中已经转向完毕。这时背光模块开启可使用户观看到稳定的显示画面内容，同样不会产生画面拖影现象。
液晶显示面板驱动画面帧的显示子画面帧时，液晶显示面板可通过SPI协议(Serial Peripheral Interface，串行外设接口）通知背光模块进行同步开启，以提高充电子画面帧显示和背光模块开启的同步性。
在背光模块开启时，液晶显示面板还可对背光模块进行PWM（Pulse Width Modulation，脉冲宽度调制）调光操作，以对该画面帧的显示画面亮度进行调整。
这里可设定驱动画面帧的充电子画面帧时，液晶显示面板的像素单元输入对应的数据信号；驱动画面帧的显示子画面帧时，液晶显示面板的像素单元不输入数据信号。显示子画面帧时的像素单元只要能够保持当前像素单元的数据信号即可保证对该画面帧对应的显示画面内容的正常显示，从而可有效降低液晶显示面板的能耗。
为了保证显示子画面帧显示画面内容的稳定性，这里可设定驱动画面帧的充电子画面帧时，液晶显示面板的像素单元输入的数据信号；与驱动画面帧的显示子画面帧时，液晶显示面板的像素单元输入的数据信号相同。这样可以避免像素单元的漏电对显示子画面帧的显示画面内容的影响。
这里画面帧的显示频率可为120Hz，如每个画面帧对应的充电子画面帧的驱动时间与对应的显示子画面帧的驱动时间相同，则该液晶显示面板的子画面帧（充电子画面帧和显示子画面帧）的显示频率为240Hz。这样便于用户方便的设置充电子画面帧和显示子画面帧。
为了进一步提高液晶显示面板的显示效果，这里每个画面帧对应的充电子画面帧的驱动时间可小于对应的显示子画面帧的驱动时间，在充电子画面帧阶段使用较短的时间对液晶显示面板的液晶层的液晶分子进行偏转操作，在显示子画面帧阶段可使用较长的时间对该画面帧的显示画面内容进行显示操作，这样可以最大程度的提高每帧画面的背光模块的工作时间，从而提高每帧画面的显示亮度，降低液晶显示面板对应的背光模块的背光功耗。
这样即完成了本优选实施例的液晶显示面板的驱动方法的画面帧驱动过程。
本发明的液晶显示面板的驱动方法通过将画面帧划分为充电子画面帧和显示子画面帧，从而通过在充电子画面帧阶段关闭背光模块来有效消除画面拖影现象；解决现有的液晶显示面板的驱动方法无法完全消除画面拖影现象的技术问题。
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 (17)

  1. 一种液晶显示面板的驱动方法，其包括：
    获取显示画面内容中的所有画面帧，每个画面帧包括充电子画面帧以及显示子画面帧；以及
    依次驱动所述显示画面内容中的所有画面帧；
    其中每个画面帧的驱动步骤包括：
    驱动所述画面帧的充电子画面帧，并通过SPI协议通知背光模块进行同步关闭；以及
    驱动所述画面帧的显示子画面帧，并通过SPI协议通知背光模块进行同步开启；
    当所述背光模块开启时，对所述背光模块进行PWM调光操作。
  2. 根据权利要求1所述的液晶显示面板的驱动方法，其中驱动所述画面帧的充电子画面帧时，液晶显示面板的像素单元输入的数据信号；与驱动所述画面帧的显示子画面帧时，液晶显示面板的像素单元输入的数据信号相同。
  3. 根据权利要求1所述的液晶显示面板的驱动方法，其中驱动所述画面帧的充电子画面帧时，液晶显示面板的像素单元输入对应的数据信号；驱动所述画面帧的显示子画面帧时，液晶显示面板的像素单元不输入数据信号。
  4. 根据权利要求1所述的液晶显示面板的驱动方法，其中每个画面帧对应的充电子画面帧的驱动时间与对应的显示子画面帧的驱动时间相同。
  5. 根据权利要求4所述的液晶显示面板的驱动方法，其中所述画面帧的显示频率为120Hz。
  6. 根据权利要求1所述的液晶显示面板的驱动方法，其中每个画面帧对应的充电子画面帧的驱动时间小于对应的显示子画面帧的驱动时间。
  7. 根据权利要求6所述的液晶显示面板的驱动方法，其中所述画面帧的显示频率为120Hz。
  8. 一种液晶显示面板的驱动方法，其包括：
    获取显示画面内容中的所有画面帧，每个画面帧包括充电子画面帧以及显示子画面帧；以及
    依次驱动所述显示画面内容中的所有画面帧；
    其中每个画面帧的驱动步骤包括：
    驱动所述画面帧的充电子画面帧，并关闭对应的背光模块；以及
    驱动所述画面帧的显示子画面帧，并开启对应的背光模块。
  9. 根据权利要求8所述的液晶显示面板的驱动方法，其中驱动所述画面帧的充电子画面帧时，液晶显示面板的像素单元输入的数据信号；与驱动所述画面帧的显示子画面帧时，液晶显示面板的像素单元输入的数据信号相同。
  10. 根据权利要求8所述的液晶显示面板的驱动方法，其中驱动所述画面帧的充电子画面帧时，液晶显示面板的像素单元输入对应的数据信号；驱动所述画面帧的显示子画面帧时，液晶显示面板的像素单元不输入数据信号。
  11. 根据权利要求8所述的液晶显示面板的驱动方法，其中每个画面帧对应的充电子画面帧的驱动时间与对应的显示子画面帧的驱动时间相同。
  12. 根据权利要求11所述的液晶显示面板的驱动方法，其中所述画面帧的显示频率为120Hz。
  13. 根据权利要求8所述的液晶显示面板的驱动方法，其中每个画面帧对应的充电子画面帧的驱动时间小于对应的显示子画面帧的驱动时间。
  14. 根据权利要求13所述的液晶显示面板的驱动方法，其中所述画面帧的显示频率为120Hz。
  15. 根据权利要求8所述的液晶显示面板的驱动方法，其中当所述背光模块开启时，对所述背光模块进行PWM调光操作。
  16. 根据权利要求8所述的液晶显示面板的驱动方法，其中所述驱动所述画面帧的充电子画面帧，并关闭对应的背光模块的步骤为：
    驱动所述画面帧的充电子画面帧，并通过SPI协议通知背光模块进行同步关闭。
  17. 根据权利要求8所述的液晶显示面板的驱动方法，其中所述驱动所述画面帧的显示子画面帧，并开启对应的背光模块的步骤为：
    驱动所述画面帧的显示子画面帧，并通过SPI协议通知背光模块进行同步开启。
PCT/CN2017/101191 2017-07-20 2017-09-11 液晶显示面板的驱动方法 Ceased WO2019015059A1 (zh)

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