WO2014173003A1 - 显示控制电路、显示控制方法及显示装置 - Google Patents

显示控制电路、显示控制方法及显示装置 Download PDF

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Publication number
WO2014173003A1
WO2014173003A1 PCT/CN2013/078216 CN2013078216W WO2014173003A1 WO 2014173003 A1 WO2014173003 A1 WO 2014173003A1 CN 2013078216 W CN2013078216 W CN 2013078216W WO 2014173003 A1 WO2014173003 A1 WO 2014173003A1
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Prior art keywords
unit
signal
image data
storage unit
display
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PCT/CN2013/078216
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English (en)
French (fr)
Inventor
牟鑫鑫
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BOE Technology Group Co Ltd
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BOE Technology Group Co Ltd
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Priority to US14/367,364 priority Critical patent/US9640099B2/en
Publication of WO2014173003A1 publication Critical patent/WO2014173003A1/zh
Anticipated expiration legal-status Critical
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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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0421—Structural details of the set of electrodes
    • G09G2300/0426—Layout of electrodes and connections
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
    • G09G2300/0809—Several active elements per pixel in active matrix panels
    • G09G2300/0842—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor
    • 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
    • G09G2320/10—Special adaptations of display systems for operation with variable images
    • G09G2320/103—Detection of image changes, e.g. determination of an index representative of the image change
    • 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
    • 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
    • G09G2330/022—Power management, e.g. power saving in absence of operation, e.g. no data being entered during a predetermined time

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a display control circuit, a display control method, and a display device. Background technique
  • the conventional display control circuit has a structural schematic diagram as shown in FIG. 1 , and includes: a signal supply unit that outputs an image data signal that needs to be displayed on the display screen; a timing control unit that is connected to the signal supply unit and receives image data output by the signal supply unit.
  • the signal is processed and converted into a signal recognizable by the driving circuit unit, so that the driving circuit unit further outputs the signal to the display screen for image display.
  • the display control circuit refreshes at a time, and the image data signal output from the signal supply unit is reflected on the display screen.
  • the screen does not need to be refreshed from time to time, and more is a still picture, but the display control circuit still refreshes the picture according to the circuit frequency from time to time, so that the power consumption of the entire display device is increased.
  • the technical problem to be solved by the present invention is to provide a display control circuit for reducing power consumption when the display device performs image display.
  • the present invention provides a display control circuit, including: a signal supply unit that outputs an image data signal to be displayed;
  • timing control unit connected to the signal supply unit, processing the image data signal, and converting it into a signal recognizable by the driving circuit unit;
  • a storage unit connected to the timing control unit and the driving circuit unit, storing a signal recognizable by the driving circuit unit, and transmitting a signal recognizable by the driving circuit unit to the driving circuit unit, and driving the display screen by the driving circuit unit Perform image display;
  • a sampling storage unit connected to the signal supply unit, collecting and storing an image data signal output by the signal supply unit;
  • Sampling comparison unit and the sampling storage unit, signal supply unit, timing control The unit and the storage unit are respectively connected, the current frame signal outputted by the signal supply unit is compared with the previous frame signal stored in the sampling storage unit, and the comparison result is transmitted to the timing control unit and the storage unit to control the timing control unit to be turned on or Turns off and controls whether signals stored in the memory unit need to be updated.
  • the timing control unit includes a refresh module and a signal conversion module connected thereto, the refresh module is connected to the signal supply unit, the signal conversion module is connected to the storage unit, and the refresh module is configured to acquire signals in real time. And supplying an image data signal input by the unit, wherein the signal conversion module is configured to convert the image data signal into a signal recognizable by the driving circuit unit.
  • the timing control unit further includes a control module connected to the refresh module, the control module is connected to the sampling comparison unit, and the control module controls the refresh module to be turned on according to a comparison result of the sampling comparison unit or Shut down.
  • the storage unit includes a control module and a storage module connected thereto, the control module is connected to the sampling comparison unit, and the storage module is respectively connected to the timing control unit and the driving display unit, and the control module Controlling whether the signal stored in the storage module needs to be updated according to the comparison result of the sampling comparison unit.
  • the present invention also provides a display control method comprising the steps of: outputting an image data signal to be displayed by a signal supply unit; acquiring and processing the image data signal by the timing control unit; The signal is transmitted to the storage unit for storage, and is transmitted by the storage unit to the driving circuit unit; the display circuit is driven by the driving circuit unit to perform image display;
  • the image data signal is sampled and stored by the sample storage unit, and the current frame image data signal output by the signal supply unit and the previous frame image data signal stored in the sample storage unit are performed by the sample comparison unit.
  • the comparison is performed, and the comparison result is transmitted to the timing control unit and the storage unit to control whether the timing control unit is turned on or off, and whether the signal stored in the storage unit needs to be updated.
  • control relationship between the comparison control unit and the storage unit is as follows:
  • the sampling comparison unit obtains a result that the signal remains unchanged, and the timing is controlled at this time.
  • the control unit is turned off, and controls the memory unit to keep its internal stored signal and the signal transmitted to the driving circuit unit unchanged;
  • the sampling comparison unit obtains a result of the signal change, at which time the control timing control unit is turned on, and controls the memory unit to update its internally stored signal and A signal that is transmitted to the drive circuit unit.
  • the present invention further provides a display device comprising a display screen, a driving circuit unit, and a display control circuit according to any one of the above, wherein a memory unit in the display control circuit is connected to the driving circuit unit, the driving The circuit unit is connected to the display screen, and the display control circuit transmits the image signal to be displayed to the driving circuit unit, and the driving circuit unit drives the display screen to perform image display according to the image signal to be displayed.
  • the display control circuit is provided with a storage unit between the timing control unit and the driving circuit unit, and a sampling storage unit is connected to the signal supply unit, and The sampling comparison unit is connected to the sampling storage unit, the signal supply unit, the timing control unit and the storage unit, so that when the signal output by the signal supply unit is unchanged, the relevant irrelevant function module in the timing control unit is turned off, and the storage unit is driven to the driving circuit.
  • the unit provides image signals to be displayed, thereby achieving intermittent operation of some modules and reducing circuit power consumption.
  • FIG. 1 is a schematic structural diagram of a display control circuit in the prior art
  • FIG. 2 is a schematic structural diagram of a display control circuit according to an embodiment of the present invention. detailed description
  • Fig. 2 is a view showing the structure of the display control circuit of this embodiment.
  • the control circuit includes:
  • a signal supply unit that outputs an image data signal to be displayed
  • timing control unit connected to the signal supply unit, processing the image data signal, converting it into a signal recognizable by the driving circuit unit, for transmitting to the driving power a circuit unit, wherein the driving circuit unit drives the display screen to perform image display according to the identifiable signal;
  • a storage unit connected to the timing control unit and the driving circuit unit, storing a signal recognizable by the driving circuit unit, and transmitting a signal recognizable by the driving circuit unit to the driving circuit unit, and driving the display screen by the driving circuit unit Performing image display;
  • the storage unit only temporarily stores signals identifiable by the driving unit;
  • a sampling storage unit connected to the signal supply unit, collecting and storing an image data signal output by the signal supply unit;
  • a sampling comparison unit which is respectively connected to the sampling storage unit, the signal supply unit, the timing control unit and the storage unit, and compares the current frame signal output by the signal supply unit with the previous frame signal stored in the sampling storage unit, and compares The result is passed to the timing control unit and the memory unit to control whether the timing control unit is turned on or off, and whether the signal stored in the memory unit needs to be updated.
  • the sampling comparison unit transmits the same result to the timing control unit and the storage unit, controls the timing control unit to turn off, and controls the storage unit.
  • the stored signal remains unchanged. At this time, some of the function modules in the timing control unit do not work, and the power consumption will be significantly reduced.
  • the sampling comparison unit transmits a different signal to the timing control unit and the storage unit, controls the timing control unit to be turned on, and controls the signal stored in the storage unit to be updated, and replaces the original signal with a new signal, thereby implementing the timing control unit. Some modules work intermittently.
  • the timing control unit includes a refresh module and a signal conversion module connected thereto, the refresh module is connected to the signal supply unit, the signal conversion module is connected to the storage unit, and the refresh module is configured to acquire a signal supply unit in real time.
  • the input image data signal is used to convert the image data signal into a signal recognizable by the driving circuit unit.
  • the timing control unit further includes a control module connected to the refresh module, the control module is connected to the sampling comparison unit, and the control module controls the refresh module to be turned on or off according to the comparison result of the sampling comparison unit.
  • the timing control unit can be turned off
  • the modules can be refresh modules and signal conversion modules, and the shutdown of these two modules can significantly reduce the power consumption of the timing control unit.
  • the storage unit includes a control module and a storage module connected thereto, the control module is connected to the sampling comparison unit, and the storage module is respectively connected to the timing control unit and the driving display unit, and the storage module Used only as signal storage, the control module controls whether the signals stored in the storage module need to be updated according to the comparison result of the sampling comparison unit.
  • the control module controls the signal transmitted by the storage module to the driving circuit unit to remain unchanged; the sampling comparing unit transmits the result of comparing the obtained signals to different
  • the control module controls the signals stored in the storage module to be updated, and transmits the updated signals to the driving circuit unit.
  • the display control circuit provided in this embodiment can set part of the module in the display control circuit according to whether the image data signal outputted by the signal supply unit changes according to whether the image data signal output by the signal supply unit is changed by setting the storage unit, the sampling storage unit and the sampling comparison unit, without affecting Under the premise of the display image display, reduce the power consumption of the display control circuit.
  • the embodiment further provides a display control method, which can be described based on the above display control circuit to perform the working steps of the method, as follows:
  • the signal supply unit outputs an image data signal to be displayed, and the image data signal is acquired by the timing control unit and processed, and the processed signal is transmitted to the storage unit for storage, and is transmitted by the storage unit to the driving circuit unit.
  • the sampling storage unit samples and stores the image data signal
  • the sampling comparison unit compares the current frame image data signal output by the signal supply unit with the previous frame image data signal stored in the sampling storage unit. And transmitting the comparison result to the timing control unit and the storage unit to control whether the timing control unit is turned on or off, and whether the signal stored in the storage unit needs to be updated.
  • control relationship between the comparison control unit and the storage unit is:
  • the sampling comparison unit obtains a result that the signal remains unchanged, and the timing is controlled at this time.
  • the control unit is turned off, and controls the storage unit to maintain the signal stored therein and the signal transmitted to the driving circuit unit unchanged; wherein, the module that is turned off in the timing control unit is a refresh module and a signal conversion module;
  • the sampling comparison unit obtains a result of the signal change, at which time the control timing control unit is turned on, and controls the memory unit to update its internally stored signal and A signal that is transmitted to the drive circuit unit.
  • the embodiment further provides a display device including a display screen, a driving circuit unit, and the above display control circuit, wherein a storage unit in the display control circuit is connected to the driving circuit unit, and the driving circuit unit is The display screen is connected, and the display control circuit transmits the image signal to be displayed to the driving circuit unit, and the driving circuit unit drives the display screen to perform image display according to the image signal to be displayed.
  • the display device in this embodiment may be any product or component having a display function such as a liquid crystal television, a notebook computer, a tablet computer, a mobile phone, a digital photo frame, an electronic paper, or the like.
  • the display control circuit of the present invention has a storage unit disposed between the timing control unit and the driving circuit unit, a sampling storage unit is connected to the signal supply unit, and a sampling comparison unit is connected to the sampling storage unit. And the signal supply unit, the timing control unit and the storage unit, when the signal output by the signal supply unit is unchanged, the related irrelevant function module in the timing control unit is turned off, and the image signal to be displayed is provided by the storage unit to the driving circuit unit, thereby realizing Intermittent operation of some modules reduces circuit power consumption.

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

Abstract

本发明涉及显示技术领域。公开了一种显示控制电路、显示控制方法及显示装置，所述电路包括信号供给单元，输出图像数据信号；时序控制单元，将图像数据信号处理为驱动电路单元可识别的信号；存储单元，存储上述可识别的信号并将其传送至驱动电路单元；采样存储单元，与信号供给单元相连，采集并存储图像数据信号；采样比较单元，对信号供给单元输出的当前帧信号和采样存储单元内存储的上一帧信号进行比较，并根据比较结果控制时序控制单元开启或关断、控制存储单元内存储的信号是否需要更新。本发明实施例中，信号供给单元输出的信号不变时，关断时序控制单元中部分模块，由存储单元向驱动电路单元提供待显示图像信号，实现部分模块的间歇性工作，降低电路功耗。

Description

显示控制电路、 显示控制方法及显示装置 技术领域
本发明涉及显示技术领域， 特别是涉及一种显示控制电路、显示 控制方法及显示装置。 背景技术
传统显示控制电路， 其结构原理图如图 1所示， 包括： 信号供给 单元， 其输出需要显示屏显示的图像数据信号； 时序控制单元， 与信 号供给单元相连，接收信号供给单元输出的图像数据信号， 并对该信 号进行处理， 将其转换为驱动电路单元能够识别的信号， 以使驱动电 路单元进一步将信号输出给显示屏， 进行图像显示。 不管显示屏最终 所显示图像是否发生变化， 该显示控制电路都在时时的刷新， 将信号 供给单元输出的图像数据信号体现在显示屏上。
而在一些应用中， 如广告牌等， 画面并不需要时时刷新， 更多是 静止画面， 但是显示控制电路还是时时的按照电路频率刷新画面， 使 得整个显示装置的功耗增大。 发明内容
本发明要解决的技术问题是提供一种显示控制电路，以降低显示 装置进行图像显示时的功耗。
为了解决上述技术问题，本发明提供一种显示控制电路，其包括： 信号供给单元， 输出待显示的图像数据信号；
时序控制单元， 与所述信号供给单元相连， 对所述图像数据信号 进行处理， 将其转换为驱动电路单元可识别的信号；
存储单元， 与所述时序控制单元和驱动电路单元相连， 存储所述 驱动电路单元可识别的信号，并将所述驱动电路单元可识别的信号传 送至驱动电路单元， 由驱动电路单元驱动显示屏进行图像显示；
采样存储单元， 与所述信号供给单元相连， 采集并存储信号供给 单元输出的图像数据信号；
采样比较单元， 与所述采样存储单元、 信号供给单元、 时序控制 单元和存储单元分别相连，将信号供给单元输出的当前帧信号与采样 存储单元内存储的上一帧信号进行比较，并将比较结果传送至时序控 制单元和存储单元， 以控制时序控制单元开启或关断、控制存储单元 内存储的信号是否需要更新。
进一步地，所述时序控制单元包括刷新模块和与其相连的信号转 换模块， 所述刷新模块连接所述信号供给单元， 所述信号转换模块连 接所述存储单元，所述刷新模块用于实时获取信号供给单元输入的图 像数据信号，所述信号转换模块用于将图像数据信号转换为驱动电路 单元可识别的信号。
进一步地，所述时序控制单元还包括与所述刷新模块相连的控制 模块， 所述控制模块与所述采样比较单元相连， 所述控制模块根据采 样比较单元的比较结果控制所述刷新模块开启或关断。
进一步地， 所述存储单元包括控制模块和与其相连的存储模块， 所述控制模块与所述采样比较单元相连，所述存储模块与所述时序控 制单元和驱动显示单元分别相连，所述控制模块根据采样比较单元的 比较结果控制所述存储模块内存储的信号是否需要更新。
本发明还提供了一种显示控制方法， 其包括以下步骤： 由信号供给单元输出待显示的图像数据信号； 由所述时序控制单 元获取所述图像数据信号并对其进行处理；将处理之后的信号传送至 存储单元进行存储， 并由存储单元传送至驱动电路单元； 由驱动电路 单元驱动显示屏进行图像显示；
其中， 由采样存储单元对所述图像数据信号进行采样并存储， 由 所述采样比较单元对所述信号供给单元输出的当前帧图像数据信号 和采样存储单元内存储的上一帧图像数据信号进行比较，并将比较结 果传送至时序控制单元和存储单元， 以控制时序控制单元开启或关 断、 控制存储单元内存储的信号是否需要更新。
进一步地，所述采样比较单元的比较结果对所述时序控制单元和 存储单元的控制关系具体为：
当信号供给单元提供的当前帧图像数据信号与上一帧图像数据 信号相同时， 采样比较单元得出信号保持不变的结果， 此时控制时序 控制单元关断，并控制存储单元保持其内部存储的信号以及传送至驱 动电路单元的信号不变；
当信号供给单元提供的当前帧图像数据信号与上一帧图像数据 信号不同时， 采样比较单元得出信号改变的结果， 此时控制时序控制 单元开启，并控制存储单元更新其内部存储的信号以及传送至驱动电 路单元的信号。
本发明进一步提供了一种显示装置， 其包括显示屏、驱动电路单 元以及上述任一项所述的显示控制电路，所述显示控制电路中的存储 单元与所述驱动电路单元相连， 所述驱动电路单元与所述显示屏相 连， 由所述显示控制电路向驱动电路单元传送待显示图像信号， 由驱 动电路单元根据所述待显示图像信号驱动显示屏进行图像显示。
上述技术方案所提供的显示控制电路、 显示控制方法及显示装 置，所述显示控制电路通过在时序控制单元和驱动电路单元之间设置 了存储单元， 在信号供给单元上连接了采样存储单元， 并设置了采样 比较单元连接采样存储单元、信号供给单元、 时序控制单元和存储单 元， 以实现信号供给单元输出的信号不变时， 关断时序控制单元中相 关无关功能模块， 由存储单元向驱动电路单元提供待显示图像信号， 从而实现部分模块的间歇性工作， 降低电路功耗。 附图说明
图 1是现有技术中显示控制电路的结构原理图；
图 2是本发明实施例的显示控制电路的结构原理图。 具体实施方式
下面结合附图和实施例，对本发明的具体实施方式作进一步详细 描述。 以下实施例用于说明本发明， 但不用来限制本发明的范围。
图 2示出了本实施例显示控制电路的结构原理图。参照图 2所示， 该控制电路包括：
信号供给单元， 输出待显示的图像数据信号；
时序控制单元， 与所述信号供给单元相连， 对所述图像数据信号 进行处理， 将其转换为驱动电路单元可识别的信号， 以传送至驱动电 路单元，由驱动电路单元根据该可识别的信号驱动显示屏进行图像显 示；
存储单元， 与所述时序控制单元和驱动电路单元相连， 存储所述 驱动电路单元可识别的信号，并将所述驱动电路单元可识别的信号传 送至驱动电路单元， 由驱动电路单元驱动显示屏进行图像显示； 存储 单元只是对所述驱动单元可识别的信号进行临时性存储；
采样存储单元， 与所述信号供给单元相连， 采集并存储信号供给 单元输出的图像数据信号；
采样比较单元， 与所述采样存储单元、 信号供给单元、 时序控制 单元和存储单元分别相连，对信号供给单元输出的当前帧信号和采样 存储单元内存储的上一帧信号进行比较，并将比较结果传送至时序控 制单元和存储单元， 以控制时序控制单元开启或关断、控制存储单元 内存储的信号是否需要更新。
当信号供给单元输出的当前帧信号和采样存储单元内存储的上 一帧信号相同时，采样比较单元向时序控制单元和存储单元传送信号 相同的结果， 控制时序控制单元关断， 并控制存储单元内存储的信号 保持不变， 此时， 时序控制单元中的部分功能模块不工作， 功耗将显 著降低； 当信号供给单元输出的当前帧信号和采样存储单元内存储的 上一帧信号不同时，采样比较单元向时序控制单元和存储单元传送信 号不同的结果， 控制时序控制单元开启， 并控制存储单元内存储的信 号进行更新， 使用新的信号替换原有信号， 由此实现时序控制单元中 部分模块间歇性工作。
具体地，所述时序控制单元包括刷新模块和与其相连的信号转换 模块， 所述刷新模块连接所述信号供给单元， 所述信号转换模块连接 所述存储单元，刷新模块用于实时获取信号供给单元输入的图像数据 信号，信号转换模块用于将图像数据信号转换为驱动电路单元可识别 的信号。 所述时序控制单元还包括与刷新模块相连的控制模块， 所述 控制模块与所述采样比较单元相连，控制模块根据采样比较单元的比 较结果控制刷新模块开启或关断。在信号供给单元输出的当前帧信号 和采样存储单元内存储的上一帧信号相同时，时序控制单元中可关断 的模块可以为刷新模块和信号转换模块，这两个模块的关断能够显著 降低时序控制单元的功耗。
本实施例中， 所述存储单元包括控制模块和与其相连的存储模 块， 所述控制模块与所述采样比较单元相连， 所述存储模块与所述时 序控制单元和驱动显示单元分别相连， 存储模块仅作为信号存储使 用，控制模块根据采样比较单元的比较结果控制存储模块内存储的信 号是否需要更新。所述采样比较单元将比较获得的信号相同的结果传 送至控制模块时，控制模块控制存储模块向驱动电路单元传送的信号 保持不变；所述采样比较单元将比较获得的信号不同的结果传送至控 制模块时， 控制模块控制存储模块内存储的信号进行更新， 并将更新 后的信号传送至驱动电路单元。
本实施例所提供的显示控制电路， 通过设置存储单元、采样存储 单元和采样比较单元，能够根据信号供给单元输出的图像数据信号是 否变化， 来关断显示控制电路中的部分模块， 在不影响显示屏图像显 示的前提下， 降低显示控制电路的功耗。
进一步地， 本实施例还提供了一种显示控制方法， 可基于上述显 示控制电路进行该方法的工作步骤描述， 具体如下：
信号供给单元输出待显示的图像数据信号，由所述时序控制单元 获取所述图像数据信号并对其进行处理，将处理之后的信号传送至存 储单元进行存储， 并由存储单元传送至驱动电路单元， 由驱动电路单 元驱动显示屏进行图像显示；
同时， 采样存储单元对所述图像数据信号进行采样并存储， 由所 述采样比较单元对所述信号供给单元输出的当前帧图像数据信号和 采样存储单元内存储的上一帧图像数据信号进行比较，并将比较结果 传送至时序控制单元和存储单元， 以控制时序控制单元开启或关断、 控制存储单元内存储的信号是否需要更新。
具体地，所述采样比较单元的比较结果对所述时序控制单元和存 储单元的控制关系为：
当信号供给单元提供的当前帧图像数据信号与上一帧图像数据 信号相同时， 采样比较单元得出信号保持不变的结果， 此时控制时序 控制单元关断，并控制存储单元保持其内部存储的信号以及传送至驱 动电路单元的信号不变； 其中， 时序控制单元中被关断的模块为刷新 模块和信号转换模块；
当信号供给单元提供的当前帧图像数据信号与上一帧图像数据 信号不同时， 采样比较单元得出信号改变的结果， 此时控制时序控制 单元开启，并控制存储单元更新其内部存储的信号以及传送至驱动电 路单元的信号。
此外， 本实施例又提供了一种显示装置， 其包括显示屏、 驱动电 路单元以及上述显示控制电路，所述显示控制电路中的存储单元与所 述驱动电路单元相连， 所述驱动电路单元与所述显示屏相连， 由所述 显示控制电路向驱动电路单元传送待显示图像信号，由驱动电路单元 根据所述待显示图像信号驱动显示屏进行图像显示。
本实施例中的显示装置可以为液晶电视、笔记本电脑、平板电脑、 手机、 数码相框、 电子纸等任何具有显示功能的产品或部件。
由以上实施例可以看出，本发明显示控制电路通过在时序控制单 元和驱动电路单元之间设置了存储单元，在信号供给单元上连接了采 样存储单元， 并设置了采样比较单元连接采样存储单元、信号供给单 元、 时序控制单元和存储单元， 以实现信号供给单元输出的信号不变 时， 关断时序控制单元中相关无关功能模块， 由存储单元向驱动电路 单元提供待显示图像信号， 从而实现部分模块的间歇性工作， 降低电 路功耗。
以上所述仅是本发明的优选实施方式， 应当指出， 对于本技术领 域的普通技术人员来说， 在不脱离本发明技术原理的前提下， 还可以 做出若干改进和替换， 这些改进和替换也应视为本发明的保护范围。

Claims

权 利 要 求 书
1、 一种显示控制电路， 包括：
信号供给单元， 输出待显示的图像数据信号；
时序控制单元， 与所述信号供给单元相连， 对所述图像数据信号 进行处理， 将其转换为驱动电路单元可识别的信号；
存储单元， 与所述时序控制单元和驱动电路单元相连， 存储所述 驱动电路单元可识别的信号，并将所述驱动电路单元可识别的信号传 送至驱动电路单元， 由驱动电路单元驱动显示屏进行图像显示； 采样存储单元， 与所述信号供给单元相连， 采集并存储信号供给 单元输出的图像数据信号；
采样比较单元， 与所述采样存储单元、 信号供给单元、 时序控制 单元和存储单元分别相连，将信号供给单元输出的当前帧信号与采样 存储单元内存储的上一帧信号进行比较，并将比较结果传送至时序控 制单元和存储单元， 以控制时序控制单元开启或关断、控制存储单元 内存储的信号是否需要更新。
2、 如权利要求 1所述的显示控制电路， 其中， 所述时序控制单 元包括刷新模块和与其相连的信号转换模块，所述刷新模块连接所述 信号供给单元， 所述信号转换模块连接所述存储单元， 所述刷新模块 用于实时获取信号供给单元输入的图像数据信号，所述信号转换模块 用于将图像数据信号转换为驱动电路单元可识别的信号。
3、 如权利要求 2所述的显示控制电路， 其中， 所述时序控制单 元还包括与所述刷新模块相连的控制模块，所述控制模块与所述采样 比较单元相连，所述控制模块根据采样比较单元的比较结果控制所述 刷新模块开启或关断。
4、 如权利要求 1所述的显示控制电路， 其中， 所述存储单元包 括控制模块和与其相连的存储模块，所述控制模块与所述采样比较单 元相连， 所述存储模块与所述时序控制单元和驱动显示单元分别相 连，所述控制模块根据采样比较单元的比较结果控制所述存储模块内 存储的信号是否需要更新。
5、 一种显示控制方法， 包括以下步骤：
由信号供给单元输出待显示的图像数据信号；
由时序控制单元获取所述图像数据信号并对其进行处理； 将处理之后的信号传送至存储单元进行存储，并由存储单元传送 至驱动电路单元；
由驱动电路单元驱动显示屏进行图像显示；
其中， 由采样存储单元对所述图像数据信号进行采样并存储， 由 采样比较单元对信号供给单元输出的当前帧图像数据信号和采样存 储单元内存储的上一帧图像数据信号进行比较，并将比较结果传送至 时序控制单元和存储单元， 以控制时序控制单元开启或关断、控制存 储单元内存储的信号是否需要更新。
6、 如权利要求 5所述的显示控制方法， 其中，
当信号供给单元提供的当前帧图像数据信号与上一帧图像数据 信号相同时， 采样比较单元得出信号保持不变的结果， 此时控制时序 控制单元关断，并控制存储单元保持其内部存储的信号以及传送至驱 动电路单元的信号不变；
当信号供给单元提供的当前帧图像数据信号与上一帧图像数据 信号不同时， 采样比较单元得出信号改变的结果， 此时控制时序控制 单元开启，并控制存储单元更新其内部存储的信号以及传送至驱动电 路单元的信号。
7、 一种显示装置， 包括显示屏、 驱动电路单元以及如权利要求 1-4中任一项所述的显示控制电路， 所述显示控制电路中的存储单元 与所述驱动电路单元相连， 所述驱动电路单元与所述显示屏相连， 由 所述显示控制电路向驱动电路单元传送待显示图像信号，由驱动电路 单元根据所述待显示图像信号驱动显示屏进行图像显示。
PCT/CN2013/078216 2013-04-27 2013-06-27 显示控制电路、显示控制方法及显示装置 Ceased WO2014173003A1 (zh)

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