WO2014121470A1 - 液晶显示器驱动方法及使用该方法的液晶显示控制电路 - Google Patents

液晶显示器驱动方法及使用该方法的液晶显示控制电路 Download PDF

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Publication number
WO2014121470A1
WO2014121470A1 PCT/CN2013/071472 CN2013071472W WO2014121470A1 WO 2014121470 A1 WO2014121470 A1 WO 2014121470A1 CN 2013071472 W CN2013071472 W CN 2013071472W WO 2014121470 A1 WO2014121470 A1 WO 2014121470A1
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WIPO (PCT)
Prior art keywords
liquid crystal
display control
crystal display
control unit
interface module
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PCT/CN2013/071472
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English (en)
French (fr)
Inventor
吴东光
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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 US14/008,591 priority Critical patent/US20140285540A1/en
Publication of WO2014121470A1 publication Critical patent/WO2014121470A1/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
    • G09G3/36—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
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0264—Details of driving circuits
    • G09G2310/0291—Details of output amplifiers or buffers arranged for use in a driving circuit
    • 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
    • G09G2370/00—Aspects of data communication
    • G09G2370/04—Exchange of auxiliary data, i.e. other than image data, between monitor and graphics controller
    • G09G2370/042—Exchange of auxiliary data, i.e. other than image data, between monitor and graphics controller for monitor identification
    • 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
    • G09G3/001—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background
    • G09G3/003—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background to produce spatial visual 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
    • 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

Definitions

  • the present invention relates to the field of electronics, and in particular to a liquid crystal display driving method and a liquid crystal display control circuit using the same. Background technique
  • CTR cathode ray tube
  • the liquid crystal display has many advantages such as thin body, power saving, and no radiation, and has been widely used.
  • Most of the liquid crystal displays on the market are backlight type liquid crystal displays, which include a liquid crystal panel and a backlight module.
  • the working principle of the liquid crystal panel is to place liquid crystal molecules in two parallel glass substrates, and control the liquid crystal molecules to change direction by energizing or not, and refract the light of the backlight module to produce a picture. Since the liquid crystal panel itself does not emit light, the light source provided by the backlight module is required to display the image normally. Therefore, the backlight module becomes one of the key components of the liquid crystal display device.
  • the light transmittance of the lamps in the backlight module can be controlled, and the brightness and darkness of the panel can be adjusted.
  • the part of the working circuit is called a timing controller (T-CON, Timing control Register), and can also be understood as a timing control circuit.
  • the current LCD display control circuit, EDID (Extended Display Identification Data) and EEPROM (Electrically Erasable Programmable Read Only Memory) data are stored in two ICs of 2K and 16K respectively (International Circuit , integrated circuit) chip. After booting, the motherboard reads EDID data from an IC chip, and the timing controller reads the EEPROM parameters from another IC chip.
  • EDID Extended Display Identification Data
  • EEPROM Electrically Erasable Programmable Read Only Memory
  • An object of the present invention is to provide a liquid crystal display driving method, and the timing control in the method
  • the device integrates an electrically programmable read-only memory, which simplifies circuit design and reduces production costs.
  • Another object of the present invention is to provide a liquid crystal display control circuit, which simplifies circuit design, has high product integration, reduces production cost, and improves product market competitiveness.
  • the present invention provides a liquid crystal display driving method comprising the following steps:
  • Step 1 Providing a liquid crystal display, the liquid crystal display includes a liquid crystal display panel and a liquid crystal display control circuit electrically connected to the liquid crystal display panel, the liquid crystal display control circuit includes: a display control unit, and the display control unit a connected timing controller and an MCU interface module electrically connected to the display control unit, wherein the timing controller integrates an electrically programmable read only memory;
  • Step 2 performing backlight scanning, the timing controller reads the EEPROM parameters from the built-in electrically programmable read only memory, thereby generating a reference timing for controlling the normal operation of the display control unit, and the display control unit generates a field synchronization VSYNC signal;
  • Step 3 The liquid crystal display control circuit drives the liquid crystal display panel to display an image according to the field synchronization VSY C signal generated by the display control unit, the reference timing generated by the timing controller, and the display data and instructions received from the MCU interface module.
  • the liquid crystal display control circuit further includes a liquid crystal display panel interface module, the liquid crystal display panel interface module is electrically connected to the display control unit, and the display control unit receives data and instructions through the MCU interface module, and passes the liquid crystal display panel
  • the interface module drives the liquid crystal display panel.
  • the liquid crystal display control circuit further includes a display storage unit electrically connected to the display control unit.
  • the EEPROM parameters are pre-stored in the electrically programmable read only memory, and the timing controller generates a reference timing based on the EEPROM parameters.
  • Step 1 further includes: providing a motherboard system end, the motherboard system end is electrically connected to the MCU interface module;
  • Step 2 further includes: when performing backlight scanning, the motherboard system end provides a 3D EN signal to the display control unit through the MCU interface module. , Switch between 2D and 3D modes.
  • the invention also provides a liquid crystal display driving method, comprising the following steps:
  • Step 1 Providing a liquid crystal display, the liquid crystal display includes a liquid crystal display panel and a liquid crystal display control circuit electrically connected to the liquid crystal display panel, the liquid crystal display control circuit includes: a display control unit, and the display control unit a connected timing controller and an MCU interface module electrically connected to the display control unit, wherein the timing controller integrates an electrically programmable read only memory;
  • Step 2 performing backlight scanning, the timing controller is built-in electrically programmable read-only memory Reading the EEPROM parameters to generate a reference timing for controlling the normal operation of the display control unit, the display control unit generating a field sync VSYNC signal;
  • Step 3 The liquid crystal display control circuit drives the liquid crystal display panel to display an image according to the field synchronization VSY C signal generated by the display control unit, the reference timing generated by the timing controller, and the display data and instructions received from the MCU interface module;
  • the liquid crystal display control circuit further includes a liquid crystal display panel interface module, the liquid crystal display panel interface module is electrically connected to the display control unit, and the display control unit receives data and instructions through the MCU interface module, and passes the liquid crystal
  • the display panel interface module drives the liquid crystal display panel
  • the liquid crystal display control circuit further includes a display storage unit, and the display storage unit is electrically connected to the display control unit;
  • the EEPROM parameter is pre-stored in the electrically programmable read only memory, and the timing controller generates a reference timing according to the EEPROM parameter;
  • Step 1 further includes: providing a motherboard system end, the motherboard system end is electrically connected to the MCU interface module;
  • Step 2 further includes: when performing backlight scanning, the motherboard system end provides 3D to the display control unit through the MCU interface module. EN signal, switching between 2D and 3D modes.
  • the present invention also provides a liquid crystal display control circuit, comprising: a display control unit, a timing controller electrically connected to the display control unit, and an MCU interface module electrically connected to the display control unit, the timing controller is integrated There is an electrically programmable read only memory.
  • the timing controller reads the EEPROM parameters from the built-in electrically programmable read only memory to generate a reference timing that controls the normal operation of the display control unit, and the display control unit generates a field sync VSYNC signal.
  • the MCU interface module is also electrically connected to a motherboard system end, and the motherboard system end provides a 3D EN signal to the display control unit through the MCU interface module to perform 2D and 3D mode switching.
  • liquid crystal display panel interface module is electrically connected to the display control unit, the display control unit receives data and instructions through the MCU interface module, and drives the liquid crystal display panel through the liquid crystal display panel interface module .
  • a display storage unit is further included, and the display storage unit is electrically connected to the display control unit.
  • Advantageous Effects of Invention integrates an electrically programmable read only memory (EEPROM) in a timing controller, and generates a field synchronous VSYNC signal by using a display control unit, and the 3D_EN signal is generated by a motherboard system side.
  • the circuit integration is high, the circuit design is simplified, and the production cost is saved; the liquid crystal display control circuit of the invention simplifies the circuit design
  • the product integration is high, the production cost is reduced, the product is developed to miniaturization, and the product market competitiveness is improved.
  • FIG. 1 is a flow chart of a method for driving a liquid crystal display according to the present invention
  • FIG. 2 is a schematic block diagram showing the structure of a liquid crystal display according to the present invention.
  • FIG. 3 is a schematic block diagram of a liquid crystal display control circuit of the present invention. detailed description
  • the present invention provides a liquid crystal display driving method, which includes the following steps:
  • a liquid crystal display 20 is provided.
  • the liquid crystal display 20 includes a liquid crystal display panel 24 and a liquid crystal display control circuit 22 electrically connected to the liquid crystal display panel 24.
  • the liquid crystal display control circuit 22 includes: a display control unit (MCU) 32.
  • a timing controller (TCON) 34 electrically connected to the display control unit 32 and an MCU interface module 38 electrically connected to the display control unit 32, wherein the timing controller 34 is integrated with an electrically programmable read only Memory (EEPROM) 342.
  • EEPROM electrically programmable read only Memory
  • a motherboard system terminal (not shown) is further provided, and the motherboard system end is electrically connected to the MCU interface module 38, so that the MCU interface module 38 can send a control signal to the display control unit 32.
  • the EEPROM parameter is pre-stored in the electrically programmable read only memory 342, the timing controller 34 generates a reference timing according to the EEPROM parameter, and the display control unit 32 drives the liquid crystal display panel 24 according to the reference timing.
  • the liquid crystal display control circuit 22 further includes: a display storage unit 39 and a liquid crystal display panel interface module 36, wherein the display storage unit 39 and the liquid crystal display panel interface module 36 are electrically connected to the display control unit 32, and the display control unit 32 under the control of the timing controller 34 Data and instructions are received by the MCU interface module 38, and the sequential storage and operation of the display storage unit 39 and the corresponding unit are performed based on the data and instructions, and the liquid crystal display panel 24 is driven by the liquid crystal display panel interface module 36 to output an image.
  • Step 2 performing backlight scanning, the timing controller 34 reads the EEPROM parameters from the built-in electrically programmable read only memory 342, thereby generating a reference timing for controlling the normal operation of the display control unit 32, and the display control unit 32 generates field synchronization.
  • VSY C signal the timing controller 34 reads the EEPROM parameters from the built-in electrically programmable read only memory 342, thereby generating a reference timing for controlling the normal operation of the display control unit 32, and the display control unit 32 generates field synchronization.
  • the step further includes: when performing backlight scanning, the motherboard system end provides the 3D EN signal to the display control unit 32 through the MCU interface module 38, thereby controlling the liquid crystal display 20 in the 2D and 3D modes. Switch between.
  • the field sync VSY C signal and the 3D_EN signal provided by the C/B in the prior art Scanning Backlight Unit are replaced by the field control VSYNC signal generated by the display control unit (MCU) 32, and 3D_EN
  • the signal is generated by the motherboard system side and passed to the display control unit 32 through the MCU interface module 38. Therefore, the electrically programmable read only memory 342 is integrated into the timing controller 34, and the liquid crystal display panel 24 can be normally driven.
  • Step 3 The liquid crystal display control circuit 22 drives the liquid crystal display panel 24 to display according to the field synchronization VSYNC signal generated by the display control unit 32, the reference timing generated by the timing controller 34, and the display data and commands received from the MCU interface module 38. image.
  • the liquid crystal display switches the display mode according to the 3D_EN signal generated by the system end of the main board, such as the 2D mode or the 3D mode, and the liquid crystal display control circuit 22 is generated according to the display control unit 32 in either the 2D or 3D mode.
  • the field sync VSYNC signal, the reference timing generated by the timing controller 34, and the display data and commands received from the MCU interface module 38 drive the liquid crystal display panel 24 to display an image.
  • the liquid crystal display driving method of the present invention generates an on-field synchronous VSYNC signal by integrating the electrically programmable read only memory 342 in the timing controller 34, and the 3D EN signal is generated by the system side and passed through the MCU interface module 38.
  • the display control unit 32 makes the circuit integration high, simplifies the circuit design, and saves production costs.
  • the present invention further provides a liquid crystal display control circuit, including: a display control unit (MCU) 32, a timing controller (TCON) 34 electrically connected to the display control unit 32, and an electrical connection.
  • a display control unit MCU
  • TCON timing controller
  • EEPROM electrically programmable read only memory
  • the liquid crystal display control circuit of the present invention integrates an electrically programmable read only memory (EEPROM) 342 into a timing controller (TCON) 34, simplifies circuit design, has high product integration, reduces production cost, and enables products to be miniaturized and improved. The market is competitive.
  • the EEPROM parameter is pre-stored in the electrically programmable read only memory 342, the timing controller 34 reads the EEPROM parameter from the electrically programmable read only memory 342, and generates a reference timing according to the EEPROM parameter, the display
  • the control unit 32 drives the liquid crystal display panel 24 in accordance with the reference timing.
  • the liquid crystal display control circuit 22 further includes: a display storage unit 39 and a liquid crystal display panel interface module 36, wherein the display storage unit 39 and the liquid crystal display panel interface module 36 are electrically connected to the display control unit 32, and the display control unit Receiving data and instructions of the motherboard system end through the MCU interface module 38 under the control of the timing controller 34, performing sequential storage and operation of the display storage unit 39 and the corresponding unit according to the data and instructions, and passing the liquid crystal display panel interface module 36 drives the liquid crystal display panel 24 to output an image.
  • the MCU interface module 38 is also electrically connected to a motherboard system terminal (not shown).
  • the motherboard system terminal provides a 3D EN signal to the display control unit 32 through the MCU interface module 38, thereby controlling the liquid crystal display in 2D and 3D modes. Switch between.
  • the field sync VSY C signal and the 3D_EN signal provided by the C/B in the prior art Scanning Backlight Unit are replaced by the field control VSY C signal generated by the display control unit (MCU) 32, and
  • the 3D_EN signal is generated by the motherboard system side and supplied to the display control unit 32 through the MCU interface module 38. Therefore, even if the electrically programmable read only memory 342 is integrated into the timing controller 34, it is ensured that the liquid crystal display panel 24 can be normally driven.
  • the present invention provides a liquid crystal display driving method by integrating an electrically programmable read only memory (EEPROM) in a timing controller, and using a display control unit to generate a field synchronous VSYNC signal, and the 3D_EN signal is generated by the main board system.
  • the terminal is generated to make the circuit integration high, simplify the circuit design, and save the production cost.
  • the invention also provides a liquid crystal display control circuit, which simplifies the circuit design, has high product integration degree, reduces the production cost, makes the product to miniaturization, and improves the product. The market is competitive.

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  • 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

一种液晶显示器驱动方法及使用该方法的液晶显示控制电路，该方法包括：步骤1、提供一液晶显示器（20），包括液晶显示面板（24）及液晶显示控制电路（22），液晶显示控制电路（22）包括：显示控制单元（32）、时序控制器（34）及MCU接口模块（38），时序控制器（34）内集成有电可编程只读存储器（342）；步骤2、进行背光扫描，该时序控制器（34）从内置的电可编程只读存储器（342）读取EEPROM参数，从而产生控制显示控制单元（32）的基准时序，显示控制单元（32）产生场同步VSYNC信号；步骤3、液晶显示控制电路（22）驱动显示面板（24）显示图像。该控制电路能够简化电路设计，产品电路集成度高，降低生产成本。

Description

液晶显示器驱动方法及使用该方法的液晶显示控制电路 技术领域
本发明涉及电子领域技术， 尤其涉及一种液晶显示器驱动方法及使用 该方法的液晶显示控制电路。 背景技术
现今科技蓬勃发展， 信息商品种类推陈出新， 满足了大众不同的需 求。 早期显示器多半为阴极射线管 （Cathode Ray Tube, CRT )显示器， 由 于其体积庞大与耗电量大， 而且所产生的辐射对于长时间使用显示器的使 用者而言， 有危害身体的问题。 因此， 现今市面上的显示器渐渐将由液晶 显示器（ Liquid Crystal Display, LCD )取代旧有的 CRT显示器。
液晶显示器具有机身薄、 省电、 无辐射等众多优点， 得到了广泛的应 用。 现有市场上的液晶显示器大部分为背光型液晶显示器， 其包括液晶面 板及背光模组（backlight module ) 。 液晶面板的工作原理是在两片平行的 玻璃基板当中放置液晶分子， 通过通电与否来控制液晶分子改变方向， 将 背光模组的光线折射出来产生画面。 由于液晶面板本身不发光， 需要借由 背光模组提供的光源来正常显示影像， 因此， 背光模组成为液晶显示装置 的关键零组件之一。 此外， 通过改变液晶分子的偏转可以控制背光模组中 灯的透光率， 调节面板的亮暗程度。 这里， 由于驱动液晶面板需要符合面 板的各种时序， 从而将这部分工作电路称为时序控制器 （T-CON, Timing control Register ) , 也可以理解为时序控制电路。
当前液晶显示控制电路， EDID ( Extended Display Identification Data, 扩示标识数据 )和 EEPROM ( Electrically Erasable Programmable Read Only Memory, 电可编程只读存储器）数据的存储分别使用 2K和 16K 的两个 IC ( Integrated Circuit, 集成电路） 芯片。 开机后主板从一 IC 芯片中读取 EDID数据 , 时序控制器从另一 IC芯片中读取 EEPROM参数。
由此可见， 在现有技术中， EEPROM是外置设计的， 时序控制器需要 从另一 IC芯片中读取该 EEPROM参数， 电路结构复杂， 体积大， 且增加 成本， 难于满足现今设备微型化的需求。 发明内容
本发明的目的在于提供一种液晶显示器驱动方法， 该方法中的时序控 制器集成了电可编程只读存储器， 简化电路设计， 降低生产成本。
本发明的另一目的在于提供一种液晶显示控制电路， 简化电路设计， 产品集成度高， 降低生产成本， 提高产品市场竟争力。
为实现上述目的， 本发明提供一种液晶显示器驱动方法， 包括以下步 骤：
步骤 1、 提供一液晶显示器， 所述液晶显示器包括液晶显示面板及电 性连接于该液晶显示面板的液晶显示控制电路， 所述液晶显示控制电路包 括： 显示控制单元、 与该显示控制单元电性连接的时序控制器及电性连接 于该显示控制单元的 MCU接口模块， 所述时序控制器内集成有电可编程 只读存储器；
步骤 2、 进行背光扫描， 所述时序控制器从内置的电可编程只读存储 器读取 EEPROM 参数， 从而产生控制显示控制单元正常工作的基准时 序， 所述显示控制单元产生场同步 VSYNC信号；
步骤 3、 所述液晶显示控制电路根据显示控制单元产生的场同步 VSY C 信号、 时序控制器产生的基准时序及从 MCU接口模块接收到的 显示数据及指令来驱动液晶显示面板显示图像。
所述液晶显示控制电路还包括液晶显示面板接口模块， 所述液晶显示 面板接口模块与显示控制单元电性连接， 所述显示控制单元通过该 MCU 接口模块接收数据和指令， 并通过该液晶显示面板接口模块驱动液晶显示 面板。
所述液晶显示控制电路还包括一显示存储单元， 该显示存储单元与显 示控制单元电性连接。
所述电可编程只读存储器内预先储存有 EEPROM 参数， 所述时序控 制器根据该 EEPROM参数产生基准时序。
步骤 1还包括， 提供一主板系统端， 该主板系统端与 MCU接口模块 电性连接； 步骤 2还包括， 在进行背光扫描时， 该主板系统端通过 MCU 接口模块给显示控制单元提供 3D EN信号， 进行 2D与 3D模式的切换。
本发明还提供一种液晶显示器驱动方法， 包括以下步骤：
步骤 1、 提供一液晶显示器， 所述液晶显示器包括液晶显示面板及电 性连接于该液晶显示面板的液晶显示控制电路， 所述液晶显示控制电路包 括： 显示控制单元、 与该显示控制单元电性连接的时序控制器及电性连接 于该显示控制单元的 MCU接口模块， 所述时序控制器内集成有电可编程 只读存储器；
步骤 2、 进行背光扫描， 所述时序控制器从内置的电可编程只读存储 器读取 EEPROM 参数， 从而产生控制显示控制单元正常工作的基准时 序， 所述显示控制单元产生场同步 VSYNC信号；
步骤 3、 所述液晶显示控制电路根据显示控制单元产生的场同步 VSY C 信号、 时序控制器产生的基准时序及从 MCU接口模块接收到的 显示数据及指令来驱动液晶显示面板显示图像；
其中， 所述液晶显示控制电路还包括液晶显示面板接口模块， 所述液 晶显示面板接口模块与显示控制单元电性连接， 所述显示控制单元通过该 MCU接口模块接收数据和指令， 并通过该液晶显示面板接口模块驱动液 晶显示面板；
其中， 所述液晶显示控制电路还包括一显示存储单元， 该显示存储单 元与显示控制单元电性连接；
其中， 所述电可编程只读存储器内预先储存有 EEPROM 参数， 所述 时序控制器根据该 EEPROM参数产生基准时序；
其中， 步骤 1还包括， 提供一主板系统端， 该主板系统端与 MCU接 口模块电性连接； 步骤 2还包括， 在进行背光扫描时， 该主板系统端通过 MCU接口模块给显示控制单元提供 3D EN信号， 进行 2D与 3D模式的 切换。
本发明还提供一种液晶显示控制电路， 包括： 显示控制单元、 与该显 示控制单元电性连接的时序控制器及电性连接于该显示控制单元的 MCU 接口模块， 所述时序控制器内集成有电可编程只读存储器。
所述时序控制器从内置的电可编程只读存储器读取 EEPROM 参数， 从而产生控制显示控制单元正常工作的基准时序， 所述显示控制单元产生 场同步 VSYNC信号。
所述 MCU接口模块还电性连接一主板系统端， 该主板系统端通过 MCU接口模块给显示控制单元提供 3D EN信号， 进行 2D与 3D模式的 切换。
还包括液晶显示面板接口模块， 所述液晶显示面板接口模块与显示控 制单元电性连接， 所述显示控制单元通过该 MCU接口模块接收数据和指 令， 并通过该液晶显示面板接口模块驱动液晶显示面板。
还包括一显示存储单元， 该显示存储单元与显示控制单元电性连接。 本发明的有益效果： 本发明液晶显示器驱动方法通过在时序控制器中 集成了电可编程只读存储器 （EEPROM ) , 并采用显示控制单元产生场同 步 VSYNC信号， 3D_EN信号则由主板系统端产生， 使得电路集成度高， 简化电路设计， 节省生产成本； 本发明液晶显示控制电路， 简化电路设 计， 产品集成度高， 降低生产成本， 使产品向微型化发展， 提高产品市场 竟争力。
为了能更进一步了解本发明的特征以及技术内容， 请参阅以下有关本 发明的详细说明与附图， 然而附图仅提供参考与说明用， 并非用来对本发 明加以限制。 附图说明
下面结合附图， 通过对本发明的具体实施方式详细描述， 将使本发明 的技术方案及其它有益效果显而易见。
附图中，
图 1为本发明液晶显示器驱动方法的流程图；
图 2为本发明中液晶显示器的结构示意框图；
图 3为本发明中液晶显示控制电路的模块示意图。 具体实施方式
为更进一步阐述本发明所采取的技术手段及其效果， 以下结合本发明 的优选实施例及其附图进行详细描述。
请参阅图 1 至 3 , 本发明提供一种液晶显示器驱动方法， 包括以下步 骤：
步骤 1、 提供一液晶显示器 20, 所述液晶显示器 20 包括液晶显示面 板 24及电性连接于该液晶显示面板 24的液晶显示控制电路 22, 所述液晶 显示控制电路 22 包括： 显示控制单元（MCU ) 32、 与该显示控制单元 32 电性连接的时序控制器 （TCON ) 34及电性连接于该显示控制单元 32 的 MCU接口模块 38 , 所述时序控制器 34 内集成有电可编程只读存储器 ( EEPROM ) 342。
在该步骤中还包括提供一主板系统端 （未图示） ， 并将该主板系统端 与 MCU接口模块 38电性连接， 从而可以通过 MCU接口模块 38向显示 控制单元 32发送控制信号。
所述电可编程只读存储器 342 内预先储存有 EEPROM参数， 所述时 序控制器 34根据该 EEPROM参数产生基准时序， 所述显示控制单元 32 根据该基准时序驱动液晶显示面板 24。
所述液晶显示控制电路 22还包括： 显示存储单元 39及液晶显示面板 接口模块 36, 所述显示存储单元 39及液晶显示面板接口模块 36均与显示 控制单元 32 电性连接， 所述显示控制单元 32在时序控制器 34的控制下 通过该 MCU接口模块 38接收数据和指令， 根据该数据和指令进行显示存 储单元 39 及相应单元的顺序存储和操作， 并通过该液晶显示面板接口模 块 36驱动液晶显示面板 24, 输出图像。
步骤 2、 进行背光扫描， 所述时序控制器 34从内置的电可编程只读存 储器 342读取 EEPROM参数， 从而产生控制显示控制单元 32正常工作的 基准时序， 所述显示控制单元 32产生场同步 VSY C信号。
在本较佳实施例中， 该步骤还包括， 在进行背光扫描时， 该主板系统 端通过 MCU接口模块 38给显示控制单元 32提供 3D EN信号， 进而可以 控制该液晶显示器 20在 2D与 3D模式之间进行切换。
在本发明中， 将现有技术中的背光扫描 （Scanning Backlight Unit ) 时 由 C/B 提供场同步 VSY C 信号及 3D_EN信号替换为由显示控制单元 ( MCU ) 32产生场同步 VSYNC信号， 而 3D_EN信号则由主板系统端产 生并通过 MCU接口模块 38给显示控制单元 32, 因此， 将电可编程只读 存储器 342 集成到时序控制器 34 中， 也保证了可以正常驱动液晶显示面 板 24。
步骤 3、 所述液晶显示控制电路 22根据显示控制单元 32产生的场同 步 VSYNC信号、 时序控制器 34产生的基准时序及从 MCU接口模块 38 接收到的显示数据及指令来驱动液晶显示面板 24显示图像。
在本发明中， 该液晶显示器根据主板系统端产生的 3D_EN信号来切 换显示模式， 如 2D模式或 3D模式， 无论在 2D或 3D模式， 所述液晶显 示控制电路 22均是根据显示控制单元 32产生的场同步 VSYNC信号、 时 序控制器 34产生的基准时序及从 MCU接口模块 38接收到的显示数据及 指令来驱动液晶显示面板 24显示图像。
本发明液晶显示器驱动方法通过在时序控制器 34 中集成了电可编程 只读存储器 342 , 并采用显示控制单元 32 产生场同步 VSYNC 信号， 3D EN信号则由系统端产生并通过 MCU接口模块 38 给显示控制单元 32, 使得电路集成度高， 简化电路设计， 节省生产成本。
请参阅图 2及图 3 , 本发明还提供一种液晶显示控制电路， 包括： 显 示控制单元 （MCU ) 32、 与该显示控制单元 32 电性连接的时序控制器 ( TCON ) 34及电性连接于该显示控制单元 32的 MCU接口模块 38 , 所 述时序控制器 34 内集成有电可编程只读存储器 （EEPROM ) 342。 本发明 液晶显示控制电路将电可编程只读存储器 （EEPROM ) 342 集成到时序控 制器 （TCON ) 34 中， 简化电路设计， 产品集成度高， 降低生产成本， 使 产品向微型化发展， 提高产品市场竟争力。 所述电可编程只读存储器 342 内预先储存有 EEPROM参数， 所述时 序控制器 34从所述电可编程只读存储器 342读取该 EEPROM参数， 并根 据该 EEPROM参数产生基准时序， 所述显示控制单元 32根据该基准时序 驱动液晶显示面板 24。
所述液晶显示控制电路 22还包括： 显示存储单元 39及液晶显示面板 接口模块 36, 所述显示存储单元 39及液晶显示面板接口模块 36均与显示 控制单元 32 电性连接， 所述显示控制单元 32在时序控制器 34的控制下 通过该 MCU接口模块 38接收主板系统端的数据和指令， 根据该数据和指 令进行显示存储单元 39 及相应单元的顺序存储和操作， 并通过该液晶显 示面板接口模块 36驱动液晶显示面板 24, 输出图像。
所述 MCU接口模块 38还电性连接一主板系统端 （未图示） ， 该主板 系统端通过 MCU接口模块 38给显示控制单元 32提供 3D EN信号， 从而 控制该液晶显示器在 2D与 3D模式之间进行切换。
在本发明中， 将现有技术中的背光扫描 （Scanning Backlight Unit ) 时 由 C/B 提供场同步 VSY C 信号及 3D_EN信号替换为由显示控制单元 ( MCU ) 32产生场同步 VSY C信号， 而 3D_EN信号则由主板系统端产 生并通过 MCU接口模块 38给显示控制单元 32, 因此， 即使将电可编程 只读存储器 342 集成到时序控制器 34 中， 也保证了可以正常驱动液晶显 示面板 24。
综上所述， 本发明提供一种液晶显示器驱动方法， 通过在时序控制器 中集成了电可编程只读存储器 （EEPROM ) , 并采用显示控制单元产生场 同步 VSYNC信号， 3D_EN信号则由主板系统端产生， 使得电路集成度 高， 简化电路设计， 节省生产成本； 本发明还提供一种液晶显示控制电 路， 简化电路设计， 产品集成度高， 降低生产成本， 使产品向微型化发 展， 提高产品市场竟争力。
以上所述， 对于本领域的普通技术人员来说， 可以根据本发明的技术 方案和技术构思作出其他各种相应的改变和变形， 而所有这些改变和变形 都应属于本发明权利要求的保护范围。

Claims

权 利 要 求
1、 一种液晶显示器驱动方法， 包括以下步骤：
步骤 1、 提供一液晶显示器， 所述液晶显示器包括液晶显示面板及电 性连接于该液晶显示面板的液晶显示控制电路， 所述液晶显示控制电路包 括： 显示控制单元、 与该显示控制单元电性连接的时序控制器及电性连接 于该显示控制单元的 MCU接口模块， 所述时序控制器内集成有电可编程 只读存储器；
步骤 2、 进行背光扫描， 所述时序控制器从内置的电可编程只读存储 器读取 EEPROM 参数， 从而产生控制显示控制单元正常工作的基准时 序， 所述显示控制单元产生场同步 VSYNC信号；
步骤 3、 所述液晶显示控制电路根据显示控制单元产生的场同步 VSY C 信号、 时序控制器产生的基准时序及从 MCU接口模块接收到的 显示数据及指令来驱动液晶显示面板显示图像。
2、 如权利要求 1 所述的液晶显示器驱动方法， 其中， 所述液晶显示 控制电路还包括液晶显示面板接口模块， 所述液晶显示面板接口模块与显 示控制单元电性连接， 所述显示控制单元通过该 MCU接口模块接收数据 和指令， 并通过该液晶显示面板接口模块驱动液晶显示面板。
3、 如权利要求 2 所述的液晶显示器驱动方法， 其中， 所述液晶显示 控制电路还包括一显示存储单元， 该显示存储单元与显示控制单元电性连 接。
4、 如权利要求 1 所述的液晶显示器驱动方法， 其中， 所述电可编程 只读存储器内预先储存有 EEPROM 参数， 所述时序控制器根据该 EEPROM参数产生基准时序。
5、 如权利要求 1 所述的液晶显示器驱动方法， 其中， 步骤 1 还包 括， 提供一主板系统端， 该主板系统端与 MCU接口模块电性连接； 步骤 2还包括， 在进行背光扫描时， 该主板系统端通过 MCU接口模块给显示 控制单元提供 3D EN信号， 进行 2D与 3D模式的切换。
6、 一种液晶显示器驱动方法， 包括以下步骤：
步骤 1、 提供一液晶显示器， 所述液晶显示器包括液晶显示面板及电 性连接于该液晶显示面板的液晶显示控制电路， 所述液晶显示控制电路包 括： 显示控制单元、 与该显示控制单元电性连接的时序控制器及电性连接 于该显示控制单元的 MCU接口模块， 所述时序控制器内集成有电可编程 只读存储器；
步骤 2、 进行背光扫描， 所述时序控制器从内置的电可编程只读存储 器读取 EEPROM 参数， 从而产生控制显示控制单元正常工作的基准时 序， 所述显示控制单元产生场同步 VSYNC信号；
步骤 3、 所述液晶显示控制电路根据显示控制单元产生的场同步
VSYNC 信号、 时序控制器产生的基准时序及从 MCU接口模块接收到的 显示数据及指令来驱动液晶显示面板显示图像；
其中， 所述液晶显示控制电路还包括液晶显示面板接口模块， 所述液 晶显示面板接口模块与显示控制单元电性连接， 所述显示控制单元通过该 MCU接口模块接收数据和指令， 并通过该液晶显示面板接口模块驱动液 晶显示面板；
其中， 所述液晶显示控制电路还包括一显示存储单元， 该显示存储单 元与显示控制单元电性连接；
其中， 所述电可编程只读存储器内预先储存有 EEPROM 参数， 所述 时序控制器根据该 EEPROM参数产生基准时序；
其中， 步骤 1还包括， 提供一主板系统端， 该主板系统端与 MCU接 口模块电性连接； 步骤 2还包括， 在进行背光扫描时， 该主板系统端通过 MCU接口模块给显示控制单元提供 3D EN信号， 进行 2D与 3D模式的 切换。
7、 一种液晶显示控制电路， 包括： 显示控制单元、 与该显示控制单 元电性连接的时序控制器及电性连接于该显示控制单元的 MCU接口模 块， 所述时序控制器内集成有电可编程只读存储器。
8、 如权利要求 7 所述的液晶显示控制电路， 其中， 所述时序控制器 从内置的电可编程只读存储器读取 EEPROM 参数， 从而产生控制显示控 制单元正常工作的基准时序， 所述显示控制单元产生场同步 VSYNC 信 号。
9、 如权利要求 8所述的液晶显示控制电路， 其中， 所述 MCU接口模 块还电性连接一主板系统端， 该主板系统端通过 MCU接口模块给显示控 制单元提供 3D EN信号， 进行 2D与 3D模式的切换。
10、 如权利要求 7所述的液晶显示控制电路， 还包括液晶显示面板接 口模块， 所述液晶显示面板接口模块与显示控制单元电性连接， 所述显示 控制单元通过该 MCU接口模块接收数据和指令， 并通过该液晶显示面板 接口模块驱动液晶显示面板。
11、 如权利要求 10 所述的液晶显示控制电路， 还包括一显示存储单 元， 该显示存储单元与显示控制单元电性连接。
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CN105895004B (zh) * 2016-05-25 2019-08-27 深圳创维－Rgb电子有限公司 显示屏驱动方法及装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060044295A1 (en) * 2004-09-01 2006-03-02 Au Optronics Corp. Timing controller for flat panel display
CN101169919A (zh) * 2006-10-27 2008-04-30 深圳帝光电子有限公司 Led动态背光源控制电路
CN101556772A (zh) * 2008-04-07 2009-10-14 北京京东方光电科技有限公司 液晶显示器驱动电路
CN202075966U (zh) * 2010-09-01 2011-12-14 北京京东方光电科技有限公司 一种液晶显示控制电路以及具有该电路的液晶显示器

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6339413B1 (en) * 1996-06-28 2002-01-15 Microchip Technology Incorporated Microcontroller with internal clock for liquid crystal display
KR101492563B1 (ko) * 2008-08-20 2015-03-12 삼성디스플레이 주식회사 타이밍 컨트롤러 및 이를 갖는 표시장치
KR101497651B1 (ko) * 2008-09-03 2015-03-06 삼성디스플레이 주식회사 표시 장치 및 이의 구동 방법
KR101545510B1 (ko) * 2008-12-24 2015-08-20 삼성전자주식회사 프레임 속도 조절이 가능한 2차원 영상 또는 3차원 영상 디스플레이 방법 및 장치
US8643781B1 (en) * 2009-12-31 2014-02-04 Marvell Israel (M.I.S.L) Ltd. Display interface methods and systems
TWI473063B (zh) * 2010-04-07 2015-02-11 源極驅動器、驅動方法及顯示裝置
KR101328787B1 (ko) * 2010-05-07 2013-11-13 엘지디스플레이 주식회사 영상표시장치 및 그 구동방법
KR101676878B1 (ko) * 2010-06-07 2016-11-17 삼성디스플레이 주식회사 입체 영상 디스플레이를 위한 디더 패턴 발생 방법 및 장치
CN201927324U (zh) * 2010-12-29 2011-08-10 北京德彼克创新科技有限公司 基于spi串行或并行接口的彩色液晶屏显示控制装置
CN201956048U (zh) * 2010-12-29 2011-08-31 德为显示科技股份有限公司 多功能tft液晶屏显示控制装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060044295A1 (en) * 2004-09-01 2006-03-02 Au Optronics Corp. Timing controller for flat panel display
CN101169919A (zh) * 2006-10-27 2008-04-30 深圳帝光电子有限公司 Led动态背光源控制电路
CN101556772A (zh) * 2008-04-07 2009-10-14 北京京东方光电科技有限公司 液晶显示器驱动电路
CN202075966U (zh) * 2010-09-01 2011-12-14 北京京东方光电科技有限公司 一种液晶显示控制电路以及具有该电路的液晶显示器

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