WO2021232501A1 - 显示装置驱动及其驱动方法 - Google Patents

显示装置驱动及其驱动方法 Download PDF

Info

Publication number
WO2021232501A1
WO2021232501A1 PCT/CN2020/094637 CN2020094637W WO2021232501A1 WO 2021232501 A1 WO2021232501 A1 WO 2021232501A1 CN 2020094637 W CN2020094637 W CN 2020094637W WO 2021232501 A1 WO2021232501 A1 WO 2021232501A1
Authority
WO
WIPO (PCT)
Prior art keywords
control signal
data
source driver
processing module
data processing
Prior art date
Application number
PCT/CN2020/094637
Other languages
English (en)
French (fr)
Inventor
乔红玉
肖波
Original Assignee
Tcl华星光电技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tcl华星光电技术有限公司 filed Critical Tcl华星光电技术有限公司
Priority to US16/960,698 priority Critical patent/US11935499B2/en
Publication of WO2021232501A1 publication Critical patent/WO2021232501A1/zh

Links

Classifications

    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/34Control 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
    • G09G3/36Control 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
    • G09G3/3611Control of matrices with row and column drivers
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/34Control 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
    • G09G3/36Control 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
    • G09G3/3611Control of matrices with row and column drivers
    • G09G3/3685Details of drivers for data electrodes
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/003Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto
    • G09G5/005Adapting incoming signals to the display format of the display terminal
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00Command of the display device
    • G09G2310/02Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0264Details of driving circuits
    • G09G2310/0272Details of drivers for data electrodes, the drivers communicating data to the pixels by means of a current
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00Command of the display device
    • G09G2310/08Details of timing specific for flat panels, other than clock recovery
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00Control of display operating conditions
    • G09G2320/04Maintaining the quality of display appearance
    • G09G2320/041Temperature compensation
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02Details of power systems and of start or stop of display operation
    • G09G2330/021Power management, e.g. power saving

Definitions

  • the invention relates to the field of display devices, in particular to a display device driving and a driving method thereof.
  • LCD Liquid Crystal Display
  • Thin Film Transistor is the main driving element in the current liquid crystal display device, which is directly related to the display performance of the flat panel display device.
  • Most of the liquid crystal displays on the current market are backlit liquid crystal displays, which include a liquid crystal display panel and a backlight module.
  • the working principle of the liquid crystal display panel is based on the thin film transistor array substrate (Thin Film Transistor Array Substrate, TFT Array Substrate) and the color filter (Color Filter, CF) substrate are filled with liquid crystal molecules, and the pixel voltage and common voltage are applied to the two substrates, and the electric field formed between the pixel voltage and the common voltage controls the liquid crystal molecules. Rotate the direction to transmit the light of the backlight module to produce a picture.
  • the layout of the hardware is optimized by increasing the size of the circuit board and thickening the board layer, but this measure is limited to the size of the internal space of the display device.
  • increasing the size and number of layers of the circuit board or choosing higher specification devices will all have additional costs.
  • the light-load inversion method is changed to reduce the VAA output voltage, etc., but this method will affect the taste of the product.
  • the object of the present invention is to provide a display device driving and a driving method thereof to solve the problems of increased load, increased operating temperature, and increased power consumption of the driving device in the driving of the display device in the prior art.
  • the present invention provides a display device driver.
  • the display device driver includes a display panel, a source driver, and a timing control chip.
  • the display panel is used to present display images of at least two load types.
  • the source driver signal is connected to the display panel.
  • the timing control chip includes a data storage module, a detection module and a data processing module.
  • the storage module is used to pre-store the preset data of the display screen.
  • the data detection module is used to obtain real-time data of the display screen, compare the real-time data with preset data of the display screen, determine the load type of the display screen corresponding to the real-time data, and generate a judgment result.
  • the data processing module is signally connected to the source driver, and the data quantity module sends a corresponding control signal to the source driver according to the judgment result of the data detection module.
  • the source driver provides a corresponding current drawn to the display panel according to the control signal.
  • the source driver includes a data selector, which selects the corresponding drawing current according to the control signal issued by the data processing module.
  • the display screen includes a light load screen and a heavy load screen.
  • the control signal includes a first control signal and a second control signal.
  • the first control signal corresponds to the reload picture.
  • the second control signal corresponds to the light load picture.
  • the data processing module sends the first control signal to the source driver.
  • the data processing module sends the second control signal to the source driver.
  • the pumping current includes a first pumping current and a second pumping current.
  • the first pumping current corresponds to the first control signal.
  • the second pumping current corresponds to the second control signal.
  • the source driver When the data processing module sends the first control signal to the source driver, the source driver provides the first current drawn to the display panel.
  • the source driver When the data processing module sends the second control signal to the source driver, the source driver provides the second current drawn to the display panel.
  • the second pumping current is smaller than the first pumping current.
  • the display device driver further includes a pulse width modulation chip, and the pulse width modulation chip is connected to the source driver for providing a voltage signal.
  • the present invention also provides a driving method of a display device, which includes the following driving steps:
  • the timing control chip obtains the real-time data of the display screen through the data detection module and compares and judges the preset data, and transmits the judgment result to the data processing module.
  • the data processing module sends out a corresponding control signal according to the judgment result, and transmits the control signal to the source driver.
  • the source driver provides a corresponding current drawn to the display panel according to the control signal.
  • the driving method of the display device further includes: the data detection module obtains real-time data of the display panel, and retrieves preset data in its storage module, and compares the real-time data with the preset data. The comparison is performed to obtain the compared judgment result, and the judgment result is transmitted to the data processing module.
  • the data processing module sends the control signal according to the judgment result of the data detection module: when the data detection module judges that the display screen is a reload screen, the data processing module sends a first control signal To the source driver. When the data detection module determines that the display screen is a light load screen, the data processing module sends a second control signal to the source driver.
  • the data processor in the source processor provides corresponding draw current according to the control signal: when the data processing module sends the first control signal to the source driver, the source The pole driver provides the first pumping current to the display panel. When the data processing module sends the second control signal to the source driver, the source driver provides a second current drawn to the display panel.
  • the present invention also provides a display device, which includes the display device driver described above.
  • the advantages of the present invention are: a display device driving and driving method of the present invention, by detecting the load type of the display screen to select the corresponding pumping current, it can be reduced when the display panel is running a low-load light-load screen Consumption of energy, while reducing the load of each device in the display device driving, so as to achieve the purpose of reducing the temperature of the device.
  • FIG. 1 is a schematic diagram of the connection of the display device driving in the embodiment of the present invention
  • FIG. 2 is a schematic diagram of the connection between a timing control chip and a source driver in an embodiment of the present invention
  • FIG. 3 is a schematic flowchart of a driving method in an embodiment of the present invention.
  • Display panel 100 timing control chip 200;
  • Data detection module 210 storage module 211;
  • Pulse width modulation chip 400 Pulse width modulation chip 400
  • the part When some part is described as being “on” another part, the part may be directly placed on the other part; there may also be an intermediate part on which the part is placed, And the middle part is placed on another part.
  • a component When a component is described as “installed to” or “connected to” another component, both can be understood as directly “installed” or “connected”, or a component is indirectly “mounted to” or “connected to” through an intermediate component To" another part.
  • An embodiment of the present invention provides a display device, and the display device adopts LCD (Liquid Crystal Display (liquid crystal display) display technology, which can be a device with a screen display function such as a notebook computer, a mobile phone, a tablet computer, and a television.
  • LCD Liquid Crystal Display
  • the display device has a display panel 100, and the display panel 100 provides a display screen for the display device.
  • the display screen includes a heavy-load screen and a light-load screen according to the type of the driven load. Wherein, the current and voltage required by the light load screen are less than the current and voltage required by the heavy load screen.
  • the display device also has a display device driver.
  • the display device driver includes a timing control chip 200, a source driver 300 and a pulse width modulation chip 400.
  • the timing control chip 200 and the pulse width modulation chip 400 are arranged on the same circuit board 500.
  • the timing control chip 200 is connected to the source driver 300. As shown in FIG. 2, the timing control chip 200 includes a storage module 211, a data detection module 210 and a data processing module 220.
  • the storage module 211 is connected to the data detection module 210, and the storage module 211 stores preset data of the display screen.
  • the data detection module 210 is connected to the data processing module 220, and is used to obtain real-time data of the display screen, and retrieve the preset data stored in the storage module 211, and compare the real-time data with the preset data.
  • the data processing module 220 generates a corresponding control signal according to the judgment result sent by the data detection module 210, and transmits the control signal and real-time data of the display screen to the source driver 300.
  • the control signal includes a first control signal and a second control signal.
  • the first control signal corresponds to the heavy load picture
  • the second control signal corresponds to the light load picture.
  • the data detection module 210 determines that the display screen is a reloaded screen, it transmits the determination result to the data processing module 220, and the data processing module 220 sends the first control signal to the source.
  • Drive 300 When the data detection module 210 determines that the display screen is a light-load screen, it transmits the determination result to the data processing module 220, and the data processing module 220 sends the second control signal to the source. Drive 300.
  • the source driver 300 is connected to the timing control chip 200. As shown in FIG. 2, it includes a data selector 310.
  • the data processing selects the corresponding pumping current according to the control model transmitted from the timing control chip 200.
  • the pumping current includes a first pumping current and a second pumping current. The first pumping current is greater than the second pumping current.
  • the data selector 310 selects the first pumping current.
  • the data selector 310 selects the second pumping current.
  • the display panel 100 is connected to the source driver 300, and the source driver 300 delivers a corresponding draw current to the display panel 100, so that the display panel 100 reaches the voltage required for its display image as soon as possible.
  • the source driver 300 also sends the display screen implementation data transferred from the timing control chip 200 to the display panel 100, so that the display panel 100 displays a heavy load screen or a light load screen according to the display screen implementation data.
  • the pulse width modulation chip 400 is connected to the source driver 300 to provide voltage signals such as VAA and DVDD to the source driver 300.
  • the embodiment of the present invention also provides a driving method for driving the above-mentioned display device.
  • the driving process is shown in FIG. 3, which includes the following steps:
  • Step S10) The timing control chip 200 judges the display screen type through the data detection module 210:
  • the data detection module 210 obtains the real-time data of the display screen, retrieves the preset data pre-saved in its storage module 211, compares the real-time data with the preset data, and determines whether the display screen is If the screen is reloaded or lightly loaded, the judgment result is generated, and the judgment result is transmitted to the data processing module 220. At the same time, the real-time data of the display screen is also transmitted to the data processing module 220.
  • Step S20 The timing control chip 200 sends a corresponding control signal through the data processing module 220:
  • the data processing module 220 transmits corresponding control signals to the source driver 300 according to the judgment result of the data detection module 210.
  • the control signal includes a first control signal and a second control signal.
  • the data detection module 210 determines that the display image is a reload image
  • the data processing module 220 sends the first control signal to the source driver 300.
  • the data detection module 210 determines that the display screen is a light-load screen
  • the data processing module 220 sends the second control signal to the source driver 300.
  • the data processing module 220 also transmits the real-time data of the display screen transmitted by the data detection module 210 to the source driver 300; the pulse width modulation chip 400 sends voltage signals such as VAA and DVDD to the source. Drive 300.
  • Step S30 The source driver 300 provides a corresponding draw current to the display panel 100 according to the control signal:
  • the data selector 310 in the source driver 300 selects and provides corresponding current drawn to the display panel 100 according to the control signal output by the timing control chip 200.
  • the pumping current includes a first pumping current and a second pumping current.
  • the timing control chip 200 transmits the first control signal
  • the data selector 310 provides a first pumping current for the display panel 100, and the first pumping current is greater than the second pumping current , Which can make the display panel 100 reach the voltage required by the heavy load screen faster.
  • the hand speed control chip transmits the second control signal
  • the data selector 310 senses a second pumping current for the display panel 100, and the second pumping current is less than the first pumping current.
  • the load current may save energy consumption when the display panel 100 displays a light load image, and reduce the load of each device in the driving of the display device, and prevent the damage of each device due to a large load and temperature rise.
  • the source driver 300 transmits the real-time data of the display screen output from the timing control chip 200 to the display panel 100, so that the display panel 100 displays a heavy load image or a light load image according to the implementation data of the display image.
  • the corresponding draw current is selected by detecting the load type of the display screen, which can be reduced when the display panel 100 is running a low-load light-load screen. Consumption of energy, while reducing the load of each device in the display device driving, so as to achieve the purpose of reducing the temperature of the device.
  • the display panel 100 has display screens with two load types, but in other embodiments of the present invention, it also provides display screens with three load types, four load types, and four load types.
  • the type of the control signal and the type of the drawn current can also be increased or decreased according to the load type of the negative display screen, but the driving principle and driving operation process are the same as those in the embodiment of the present invention. Similar, so I won’t repeat them here. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.

Landscapes

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

Abstract

一种显示装置驱动及其驱动方法。显示装置驱动包括显示面板(100)、源极驱动器(300)以及时序控制芯片(200)。显示面板(100)用于呈现至少两种负载类型的显示画面。源极驱动器(300)信号连接至显示面板(100)。时序控制芯片(200)包括数据检测模块(210)和数据处理模块(220)。

Description

显示装置驱动及其驱动方法 技术领域
本发明涉及显示设备领域,特别是一种显示装置驱动及其驱动方法。
背景技术
液晶显示装置(Liquid Crystal Display,LCD),具有机身薄、省电、无辐射等众多优点,得到了广泛地应用,如:液晶电视、智能手机、数字相机、平板电脑、计算机屏幕、或笔记本电脑屏幕等,在平板显示领域中占主导地位。
薄膜晶体管(Thin Film Transistor,TFT)是目前液晶显示装置中的主要驱动元件,直接关系平板显示装置的显示性能。现有市场上的液晶显示器大部分为背光型液晶显示器,其包括液晶显示面板及背光模组。液晶显示面板的工作原理是在薄膜晶体管阵列基板(Thin Film Transistor Array Substrate,TFT Array Substrate)与彩色滤光片(Color Filter,CF)基板之间灌入液晶分子,并在两片基板上分别施加像素电压和公共电压,通过像素电压和公共电压之间形成的电场控制液晶分子的旋转方向,以将背光模组的光线透射出来产生画面。
随着人们对显示品质的不断追求,高刷新率(例如120HZ)和高画质(例如8K)的液晶显示器必然会成为以后的发展趋势,然而高刷新率和高画质的液晶面板必然会造成电路板和源极驱动器的负载加重,器件温度升高,从而造成器件的损坏。为了实现相邻行像素的亮暗交替的重载画面下也会造成大量电流的消耗,增加了功耗。为达到运行高画质的重载画面,当运行轻载画面也只能运用与重载画面相同的电流推力,会进一加重器件的负载。
目前降低器件的温度具有以下措施:
硬件上,通过增加电路板的大小和加厚板层从而优化硬件的布局,但是这种措施局限于显示装置的内部空间大小。并且,增加电路板的大小和层数或选择更高规格器件,皆会有额外的成本产生。
软件上,改为轻载型倒置(inversion)方式,降低VAA输出电压等,但是这种方式会对产品的品味性造成影响。
技术问题
本发明的目的是提供一种显示装置驱动及其驱动方法,以解决现有技术中显示装置的驱动中驱动器件的负载加重、运行温度升高、功耗增加等问题。
技术解决方案
为实现上述目的,本发明提供一种显示装置驱动,所述显示装置驱动包括显示面板、源极驱动器、时序控制芯片。
所述显示面板用于呈现至少两种负载类型的显示画面。所述源极驱动器信号连接至所述显示面板。所述时序控制芯片包括数据存储模块、检测模块和数据处理模块。
所述存储模块用以预存所述显示画面的预设数据。所述数据检测模块用于获取所述显示画面的实时数据,并将所述实时数据与显示画面的预设数据进行对比,判断所述实时数据所对应的显示画面的负载类型,生成判断结果。所述数据处理模块信号连接至所述源极驱动器,所述数据数量模块根据所述数据检测模块的判断结果发出对应的控制信号至所述源极驱动器。所述源极驱动器根据所述控制信号提供对应的抽载电流至所述显示面板。
进一步地,所述源极驱动器包括数据选择器,其根据所述数据处理模块发出的控制信号选择所对应的抽载电流。
进一步地,根据负载类型所述显示画面包括轻载画面和重载画面。
所述控制信号包括第一控制信号和第二控制信号。所述第一控制信号对应于所述重载画面。所述第二控制信号对应与所述轻载画面。
当所述数据检测模块判断所述显示画面为重载画面时,所述数据处理模块则发出所述第一控制信号至所述源极驱动器。当所述数据检测模块判断所述显示画面为轻载画面时,所述数据处理模块则发出所述第二控制信号至所述源极驱动器。
进一步地,所述抽载电流包括第一抽载电流和第二抽载电流。所述第一抽载电流对应于所述第一控制信号。所述第二抽载电流对应于所述第二控制信号。
当所述数据处理模块则发出所述第一控制信号至所述源极驱动器时,所述源极驱动器提供所述第一抽载电流至所述显示面板。当所述数据处理模块则发出所述第二控制信号至所述源极驱动器时,所述源极驱动器提供所述第二抽载电流至所述显示面板。
其中,所述第二抽载电流小于所述第一抽载电流。
进一步地,所述显示装置驱动还包括脉宽调制芯片,所述脉宽调制芯片与所述源极驱动器连接,用于提供电压信号。
本发明中还提供一种显示装置的驱动方法,其包括以下驱动步骤:
所述时序控制芯片通过数据检测模块获取显示画面的实时数据与预设数据进行比较判断,并将判断结果传输给数据处理模块。所述数据处理模块根据所述判断结果发出相对应的控制信号,并将所述控制信号传输给源极驱动器。所述源极驱动器根据所述控制信号提供对应的抽载电流至显示面板。
进一步地,所述显示装置的驱动方法还包括:所述数据检测模块获取所述显示面板的实时数据,并调取其存储模块中的预设数据,将所述实时数据与所述预设数据进行比较,得出比较后的判断结果,并将判断结果传输给所述数据处理模块。
进一步地,所述数据处理模块根据所述数据检测模块的判断结果发送所述控制信号:当所述数据检测模块判断所述显示画面为重载画面时,所述数据处理模块发出第一控制信号至所述源极驱动器。当所述数据检测模块判断所述显示画面为轻载画面时,所述数据处理模块则发出第二控制信号至所述源极驱动器。
进一步地,所述源极处理器中的数据处理器根据所述控制信号提供对应的抽载电流:当所述数据处理模块发出所述第一控制信号至所述源极驱动器时,所述源极驱动器提供第一抽载电流至所述显示面板。当所述数据处理模块发出所述第二控制信号至所述源极驱动器时,所述源极驱动器提供第二抽载电流至所述显示面板。
本发明中还提供一种显示装置,所述显示装置包括如上所述的显示装置驱动。
有益效果
本发明的优点是:本发明的一种显示装置驱动及其驱动方法,通过检测所述显示画面的负载类型选择相对应的抽载电流,在显示面板运行低负载的轻载画面时就可以减低耗能,同时减轻显示装置驱动中各器件的负载,从而达到减低器件温度的目的。
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为本发明实施例中显示装置驱动的连接示意图;
图2为本发明实施例中时序控制芯片和源极驱动器的连接示意图;
图3为本发明实施例中驱动方法的流程示意图。
图中部件表示如下:
显示面板100;时序控制芯片200;
数据检测模块210;存储模块211;
数据处理模块220;源极驱动器300;
数据选择器310;脉宽调制芯片400;
电路板500。
本发明的实施方式
以下参考说明书附图介绍本发明的优选实施例,证明本发明可以实施,所述发明实施例可以向本领域中的技术人员完整介绍本发明,使其技术内容更加清楚和便于理解。本发明可以通过许多不同形式的发明实施例来得以体现,本发明的保护范围并非仅限于文中提到的实施例。
在附图中,结构相同的部件以相同数字标号表示,各处结构或功能相似的组件以相似数字标号表示。附图所示的每一部件的尺寸和厚度是任意示出的,本发明并没有限定每个组件的尺寸和厚度。为了使图示更清晰,附图中有些地方适当夸大了部件的厚度。
此外,以下各发明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发明实施例。本发明中所提到的方向用语,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,使用的方向用语是为了更好、更清楚地说明及理解本发明,而不是指示或暗指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。此外,术语“第一”、“第二”、“第三”等仅用于描述目的,而不能理解为指示或暗示相对重要性。
当某些部件被描述为“在”另一部件“上”时,所述部件可以直接置于所述另一部件上;也可以存在一中间部件,所述部件置于所述中间部件上,且所述中间部件置于另一部件上。当一个部件被描述为“安装至”或“连接至”另一部件时,二者可以理解为直接“安装”或“连接”,或者一个部件通过一中间部件间接“安装至”、或“连接至”另一个部件。
本发明实施例中提供了一种显示装置,所述显示装置采用LCD(Liquid Crystal Display,液晶显示器)显示技术,其可以为笔记本电脑、手机、平板电脑、电视机等具有画面显示功能的装置。
所述显示装置中具有一显示面板100,所述显示面板100为所述显示装置提供显示画面。所述显示画面根据驱动的负载类型包括重载画面和轻载画面。其中,所述轻载画面所需的电流、电压小于所述重载画面所需的电流、电压。
所述显示装置中还具有一种显示装置驱动,如图1所示,所述显示装置驱动中具有一时序控制芯片200、一源极驱动器300以及一脉宽调制芯片400。其中,所述时序控制芯片200和所述脉宽调制芯片400设于同一块电路板500上。
所述时序控制芯片200与所述源极驱动器300连接。如图2所示,所述时序控制芯片200中包括一存储模块211,一数据检测模块210以及一数据处理模块220。所述存储模块211与所述数据检测模块210连接,所述存储模块211中存储有所述显示画面的预设数据。所述数据检测模块210与所述数据处理模块220连接,其用于获取显示画面的实时数据,并调取所述存储模块211中所存储的预设数据,将所述实时数据与所述预设数据进行比较,从而判断所述实施数据所对应的显示画面的负载类型,生成判断结果,并将判断结果发送给所述数据处理模块220,同时将显示画面的实时数据也传输给数据处理模块220。
所述数据处理模块220根据所述数据检测模块210发送过来的判断结果,生成相对应的控制信号,并将控制信号和显示画面的实时数据传输给源极驱动器300。其中,所述控制信号包括第一控制信号和第二控制信号。所述第一控制信号对应于所述重载画面,所述第二控制信号对应与所述轻载画面。
当所述数据检测模块210判断所述显示画面的为重载画面时,其将判断结果传输给所述数据处理模块220,所述数据处理模块220发送所述第一控制信号至所述源极驱动器300。当所述数据检测模块210判断所述显示画面的为轻载画面时,其将判断结果传输给所述数据处理模块220,所述数据处理模块220发送所述第二控制信号至所述源极驱动器300。
所述源极驱动器300与所述时序控制芯片200连接,如图2所示,其包括一数据选择器310。所述数据处理根据所述时序控制芯片200传输过来的控制型号选择相应的抽载电流。其中,所述抽载电流包括第一抽载电流和第二抽载电流。所述第一抽载电流大于所述第二抽载电流。
当所述数据处理模块220发送的为第一控制信号时,所述数据选择器310选择第一抽载电流。当所述数据处理模块220发送的为第二控制信号时,所述数据选择器310选择第二抽载电流。
所述显示面板100与所述源极驱动器300连接,所述源极驱动器300为所述显示面板100输送相应的抽载电流,使所述显示面板100尽快达到其显示画面所需要的电压。同时,所述源极驱动器300也将所述时序控制芯片200传送过来的显示画面实施数据发送至显示面板100,使显示面板100根据显示画面的实施数据显示重载画面或轻载画面。
所述脉宽调制芯片400与所述源极驱动器300连接,用于提供VAA、DVDD等电压信号给所述源极驱动器300。
本发明实施例还提供了一种上述显示装置驱动的驱动方法,其驱动流程如图3所示,其包括以下步骤:
步骤S10)所述时序控制芯片200通过数据检测模块210判断所述显示画面类型:
所述数据检测模块210获取所述显示画面的实时数据,并调取其存储模块211中预先保存的预设数据,将所述实时数据与所述预设数据进行比较,判断所述显示画面是重载画面还是轻载画面,生成判断结果,并将判断结果传输给数据处理模块220。同时,将所述显示画面的实时数据也传输给所述数据处理模块220。
步骤S20)所述时序控制芯片200通过数据处理模块220发送对应控制信号:
所述数据处理模块220根据所述数据检测模块210的判断结果,传输对应的控制信号至所述源极驱动器300。其中,所述控制信号包括第一控制信号和第二控制信号。当所述数据检测模块210判断所述显示画面为重载画面时,所述数据处理模块220发送所述第一控制信号至源极驱动器300。当所述数据检测模块210判断所述显示画面为轻载画面时,所述数据处理模块220发送所述第二控制信号至源极驱动器300。
同时,所述数据处理模块220也将所述数据检测模块210传输过来的显示画面实时数据传输至所述源极驱动器300中;脉宽调制芯片400发送VAA、DVDD等电压信号给所述源极驱动器300。
步骤S30)所述源极驱动器300根据所述控制信号提供对应的抽载电流至显示面板100:
所述源极驱动器300中的数据选择器310根据所述时序控制芯片200所输出的控制信号选择提供对应的抽载电流输入至所述显示面板100。其中,所述抽载电流包括第一抽载电流和第二抽载电流。当所述时序控制芯片200传输所述第一控制信号时,所述数据选择器310为所述显示面板100提供第一抽载电流,所述第一抽载电流大于所述第二抽载电流,能够使显示面板100更快的达到重载画面所需的电压。当所述手速徐控制芯片传输所述第二控制信号时,所述数据选择器310为所述显示面板100提偶感第二抽载电流,所述第二抽载电流小于所述第一抽载电流,在显示面板100显示轻载画面时可能节约耗能,并且减低显示装置驱动中各器件的负载,防止各器件由于负载大而温度升高产生损坏。
同时,所述源极驱动器300将时序控制芯片200中输出的显示画面实时数据传输给所述显示面板100,使显示面板100根据显示画面的实施数据显示重载画面或轻载画面。
本发明实施例中所提供的一种显示装置驱动及其驱动方法,通过检测所述显示画面的负载类型选择相对应的抽载电流,在显示面板100运行低负载的轻载画面时就可以减低耗能,同时减轻显示装置驱动中各器件的负载,从而达到减低器件温度的目的。
在本发明实施例中,所述显示面板100具有两种负载类型的显示画面,但在本发明的其他实施例中,还提供具有三种负载类型显示画面、四种负载类型显示画面以及四种以上负载类型的显示画面,所述控制信号的类型和所述抽载电流的类型也可以根据负显示画面的负载类型进行增加或减少,但其驱动原理以及驱动运行流程与本发明实施例中的相似,因此不在此做过多赘述。基于本申请中的实施例,本领域普通技术人员在没有做出创造性劳动的前提下所获得的所有其它实施例,都属于本申请保护的范围。
虽然在本文中参照了特定的实施方式来描述本发明,但是应该理解的是,这些实施例仅仅是本发明的原理和应用的示例。因此应该理解的是,可以对示例性的实施例进行许多修改,并且可以设计出其他的布置,只要不偏离所附权利要求所限定的本发明的精神和范围。应该理解的是,可以通过不同于原始权利要求所描述的方式来结合不同的从属权利要求和本文中所述的特征。还可以理解的是,结合单独实施例所描述的特征可以使用在其他所述实施例中。

Claims (10)

  1. 一种显示装置驱动,其包括:
    显示面板,用于呈现至少两种负载类型的显示画面;
    源极驱动器,信号连接至所述显示面板;
    时序控制芯片,其包括:
    存储模块,用以预存所述显示画面的预设数据;
    数据检测模块,用于获取所述显示画面的实时数据,并将所述实时数据与所述预设数据进行对比,判断所述实时数据所对应的显示画面的负载类型,生成判断结果;
    数据处理模块,信号连接至所述源极驱动器,所述数据数量模块根据所述数据检测模块的判断结果发出对应的控制信号至所述源极驱动器;
    所述源极驱动器根据所述控制信号提供对应的抽载电流至所述显示面板。
  2. 如权利要求1所述的显示装置驱动,其中,所述源极驱动器包括数据选择器,其根据所述数据处理模块发出的控制信号选择所对应的抽载电流。
  3. 如权利要求1所述的显示装置驱动,其中,
    根据负载类型所述显示画面包括轻载画面和重载画面;
    所述控制信号包括:
    第一控制信号,对应于所述重载画面;
    第二控制信号,对应与所述轻载画面;
    当所述数据检测模块判断所述显示画面为重载画面时,所述数据处理模块则发出所述第一控制信号至所述源极驱动器;
    当所述数据检测模块判断所述显示画面为轻载画面时,所述数据处理模块则发出所述第二控制信号至所述源极驱动器。
  4. 如权利要求3所述的显示装置驱动,其中,所述抽载电流包括:
    第一抽载电流,对应于所述第一控制信号;
    第二抽载电流,对应于所述第二控制信号;
    当所述数据处理模块则发出所述第一控制信号至所述源极驱动器时,所述源极驱动器提供所述第一抽载电流至所述显示面板;
    当所述数据处理模块则发出所述第二控制信号至所述源极驱动器时,所述源极驱动器提供所述第二抽载电流至所述显示面板;
    其中,所述第二抽载电流小于所述第一抽载电流。
  5. 如权利要求1所述的显示装置驱动,其还包括:
    脉宽调制芯片,与所述源极驱动器连接,用于提供电压信号。
  6. 一种显示装置的驱动方法,其包括:
    所述时序控制芯片通过数据检测模块获取显示画面的实时数据与预设数据进行比较判断,生成判断结果,并将判断结果传输给数据处理模块;
    所述数据处理模块根据所述判断结果发出相对应的控制信号,并将所述控制信号传输给源极驱动器;
    所述源极驱动器根据所述控制信号提供对应的抽载电流至显示面板。
  7. 如权利要求6所述的显示装置的驱动方法,其还包括:
    所述数据检测模块获取所述显示面板的实时数据,并调取存储模块中的预设数据,将所述实时数据与所述预设数据进行比较,得出比较后的判断结果,并将判断结果传输给所述数据处理模块。
  8. 如权利要求7所述的显示装置的驱动方法,其中,
    所述数据处理模块根据所述数据检测模块的判断结果发送所述控制信号:
    当所述数据检测模块判断所述显示画面为重载画面时,所述数据处理模块发出第一控制信号至所述源极驱动器;
    当所述数据检测模块判断所述显示画面为轻载画面时,所述数据处理模块发出第二控制信号至所述源极驱动器。
  9. 如权利要求8所述的显示装置的驱动方法,其中,
    所述源极处理器中的数据处理器根据所述控制信号提供对应的抽载电流:
    当所述数据处理模块发出第一控制信号至所述源极驱动器时,所述源极驱动器提供第一抽载电流至所述显示面板;
    当所述数据处理模块发出第二控制信号至所述源极驱动器时,所述源极驱动器提供第二抽载电流至所述显示面板。
  10. 一种显示装置,其包括如权利要求1所述的显示装置驱动。
PCT/CN2020/094637 2020-05-20 2020-06-05 显示装置驱动及其驱动方法 WO2021232501A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US16/960,698 US11935499B2 (en) 2020-05-20 2020-06-05 Display device driver and driving method thereof

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010429453.1A CN111540326A (zh) 2020-05-20 2020-05-20 显示装置驱动及其驱动方法
CN202010429453.1 2020-05-20

Publications (1)

Publication Number Publication Date
WO2021232501A1 true WO2021232501A1 (zh) 2021-11-25

Family

ID=71980655

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/094637 WO2021232501A1 (zh) 2020-05-20 2020-06-05 显示装置驱动及其驱动方法

Country Status (3)

Country Link
US (1) US11935499B2 (zh)
CN (1) CN111540326A (zh)
WO (1) WO2021232501A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113593492B (zh) * 2021-07-15 2022-10-04 Tcl华星光电技术有限公司 显示面板的驱动系统及显示面板的驱动方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011154105A (ja) * 2010-01-26 2011-08-11 Renesas Electronics Corp 液晶表示装置及びバイアス電流調整方法
CN103366707A (zh) * 2013-07-22 2013-10-23 深圳市华星光电技术有限公司 液晶显示器及其驱动方法
US20160125782A1 (en) * 2014-10-30 2016-05-05 Samsung Display Co., Ltd. Loading effect control device and organic light emitting display device having the same
CN106448579A (zh) * 2016-03-25 2017-02-22 北京集创北方科技股份有限公司 一种低功率源极驱动电路及显示装置
CN106710563A (zh) * 2017-03-20 2017-05-24 深圳市华星光电技术有限公司 一种显示面板的驱动方法、时序控制器及液晶显示器
CN107146592A (zh) * 2017-07-20 2017-09-08 京东方科技集团股份有限公司 液晶显示面板的驱动方法、驱动电路和显示装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20080088117A (ko) * 2007-03-28 2008-10-02 삼성전자주식회사 백라이트 어셈블리, 이를 갖는 표시장치 및 이의 구동방법
US9824615B2 (en) * 2015-06-07 2017-11-21 Apple Inc. Load adaptive power management for a display panel
CN110335570B (zh) * 2019-05-08 2021-08-31 京东方科技集团股份有限公司 能耗控制方法、系统以及装置、计算机可读存储介质
KR20200130607A (ko) * 2019-05-10 2020-11-19 삼성디스플레이 주식회사 표시 장치 및 그의 구동 방법
CN110969980A (zh) * 2019-12-27 2020-04-07 Tcl华星光电技术有限公司 显示装置及其驱动方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011154105A (ja) * 2010-01-26 2011-08-11 Renesas Electronics Corp 液晶表示装置及びバイアス電流調整方法
CN103366707A (zh) * 2013-07-22 2013-10-23 深圳市华星光电技术有限公司 液晶显示器及其驱动方法
US20160125782A1 (en) * 2014-10-30 2016-05-05 Samsung Display Co., Ltd. Loading effect control device and organic light emitting display device having the same
CN106448579A (zh) * 2016-03-25 2017-02-22 北京集创北方科技股份有限公司 一种低功率源极驱动电路及显示装置
CN106710563A (zh) * 2017-03-20 2017-05-24 深圳市华星光电技术有限公司 一种显示面板的驱动方法、时序控制器及液晶显示器
CN107146592A (zh) * 2017-07-20 2017-09-08 京东方科技集团股份有限公司 液晶显示面板的驱动方法、驱动电路和显示装置

Also Published As

Publication number Publication date
CN111540326A (zh) 2020-08-14
US20220301513A1 (en) 2022-09-22
US11935499B2 (en) 2024-03-19

Similar Documents

Publication Publication Date Title
CN107481689B (zh) 图像处理装置及其处理方法
US10043464B2 (en) Control device, display device, and control method
KR101243789B1 (ko) 액정표시장치 및 그의 구동 방법
TWI434257B (zh) 電子裝置系統
US20150077445A1 (en) Pixel structure
WO2020073376A1 (zh) 显示装置及其消除关机残影方法
CN109360534B (zh) 像素驱动方法
US8395573B2 (en) Liquid crystal display having sub-pixels provided with three different voltage levels
TW201133456A (en) Display controller and method for driving liquid crystal display panel
US11288995B2 (en) Pixel data optimization method, pixel matrix driving device and display apparatus
US20110292021A1 (en) Liquid crystal display device and method of driving same
US20210407447A1 (en) Pixel circuit and liquid crystal display panel
WO2019184458A1 (zh) 显示装置及背光控制方法
TWI396164B (zh) 顯示面板及電子系統
WO2021232501A1 (zh) 显示装置驱动及其驱动方法
CN109637418A (zh) 一种显示面板及其驱动方法、显示装置
TWI474311B (zh) 顯示方法及應用於該顯示方法之顯示系統
WO2019037339A1 (zh) 液晶显示装置及其驱动方法
US10283031B2 (en) Electronic device with image processor to reduce color motion blur
WO2017206263A1 (zh) 液晶显示器及其显示模组、tft阵列基板
US20180039144A1 (en) Liquid crystal panels and display devices
JP2005037685A (ja) 液晶表示パネルの駆動装置、及び液晶表示パネルの駆動方法
WO2021203486A1 (zh) 显示装置及电子设备
CN113593485B (zh) 液晶显示装置
TWI556218B (zh) 畫素及其驅動方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20936272

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20936272

Country of ref document: EP

Kind code of ref document: A1