WO2017219399A1 - 显示驱动电路及液晶显示面板 - Google Patents

显示驱动电路及液晶显示面板 Download PDF

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Publication number
WO2017219399A1
WO2017219399A1 PCT/CN2016/089718 CN2016089718W WO2017219399A1 WO 2017219399 A1 WO2017219399 A1 WO 2017219399A1 CN 2016089718 W CN2016089718 W CN 2016089718W WO 2017219399 A1 WO2017219399 A1 WO 2017219399A1
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Prior art keywords
signal
display
data signal
data line
display data
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PCT/CN2016/089718
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English (en)
French (fr)
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朱江
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深圳市华星光电技术有限公司
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Priority to US15/313,930 priority Critical patent/US20180182344A1/en
Publication of WO2017219399A1 publication Critical patent/WO2017219399A1/zh

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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
    • 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
    • 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
    • G09G3/3607Control 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 for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
    • 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
    • G09G3/3688Details of drivers for data electrodes suitable for active matrices only
    • 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
    • G09G3/3696Generation of voltages supplied to electrode drivers
    • 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
    • G09G2320/02Improving the quality of display appearance
    • G09G2320/0242Compensation of deficiencies in the appearance of colours
    • 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
    • G09G2320/02Improving the quality of display appearance
    • G09G2320/0271Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
    • 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
    • G09G2320/02Improving the quality of display appearance
    • G09G2320/0285Improving the quality of display appearance using tables for spatial correction of display data
    • 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
    • G09G2320/06Adjustment of display parameters
    • G09G2320/0626Adjustment of display parameters for control of overall brightness
    • 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
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00Aspects of display data processing
    • G09G2340/04Changes in size, position or resolution of an image
    • G09G2340/0407Resolution change, inclusive of the use of different resolutions for different screen areas
    • G09G2340/0435Change or adaptation of the frame rate of the video stream

Definitions

  • the present invention relates to the field of liquid crystal display technology, and in particular, to a display driving circuit and a liquid crystal display panel.
  • the display driving circuit of the existing liquid crystal display panel is usually composed of a timing control module, an overdrive module, a white balance module, and a data conversion module.
  • the purpose of white balance adjustment is to adapt to the subjective feelings of different people on color. It can convert the original data from 8bit to 12bit, adjust the proportion of red, green and blue colors in each white grayscale picture, and finely adjust the white color.
  • the brightness of the grayscale makes the overall display conform to Gamma2.2.
  • the liquid crystal display since the liquid crystal molecules have optical anisotropy characteristics, the liquid crystal display usually has a color shift problem at a large viewing angle, that is, a color distortion image is easily observed at a large viewing angle, and a large viewing angle of the liquid crystal display is lowered. effect.
  • the conventional liquid crystal display generally adopts a liquid crystal pixel multi-domain structure technology, that is, the pixel unit is divided into smaller display units, and the driving voltages of the main pixels and the sub-pixels of each display unit are proportional to each other, thereby making the liquid crystal molecules of each display unit The deflection angle is different, thereby improving the color shift problem of the liquid crystal display.
  • the liquid crystal panel having a multi-domain structure has a disadvantage of low transmittance.
  • the embodiment of the invention provides a display driving circuit and a liquid crystal display panel with low power consumption and low manufacturing cost, and solves the technical problem that the existing liquid crystal display has large power consumption and high manufacturing cost.
  • the embodiment of the invention provides a display driving circuit for providing a data signal to a corresponding display panel, which includes:
  • a conversion module configured to perform digital conversion on the original data signal, and generate, according to the digitally converted data signal, a first display data signal for the main pixel corresponding to each of the data signals and a sub-pixel according to a table lookup manner Second display data signal;
  • a selection module configured to select the first display data signal or the second display data signal as a corresponding data line signal according to a pixel brightness setting of the display panel
  • a frame rate control module configured to perform a screen enhancement operation on the data line signal by using a picture frame frequency control manner
  • the type of the display data signal corresponding to the data line signal of the adjacent pixel unit is different.
  • the first display data signal is a high brightness display data signal; and the second display data signal is a low brightness display data signal.
  • the second display data signal is a high brightness display data signal; and the first display data signal is a low brightness display data signal.
  • the data line signal includes a red data line signal, a blue data line signal, and a green data line signal.
  • the data line signal includes a red data line signal, a blue data line signal, a green data line signal, and a white data line signal.
  • the embodiment of the invention further provides a display driving circuit for providing a data signal to a corresponding display panel, which includes:
  • a conversion module configured to perform digital conversion on the original data signal, and generate, according to the digitally converted data signal, a first display data signal for the main pixel and a second display data for the sub-pixel corresponding to each of the data signals signal;
  • a selection module configured to select the first display data signal or the second display data signal as a corresponding data line signal according to a pixel brightness setting of the display panel
  • the frame rate control module is configured to perform a screen enhancement operation on the data line signal by using a picture frame frequency control mode.
  • the conversion module generates the first display data signal and the second display data signal by means of a look-up table.
  • the first display data signal is a high brightness display data signal; and the second display data signal is a low brightness display data signal.
  • the second display data signal is a high brightness display data signal; and the first display data signal is a low brightness display data signal.
  • the types of display data signals corresponding to the data line signals of adjacent pixel units are different.
  • the data line signal includes a red data line signal, a blue data line signal, and a green data line signal.
  • the data line signal includes a red data line signal, a blue data line signal, a green data line signal, and a white data line signal.
  • the embodiment of the invention further provides a liquid crystal display panel, comprising a display panel and a data signal display driving circuit for providing the data to the display panel, wherein the display driving circuit comprises:
  • a conversion module configured to perform digital conversion on the original data signal, and generate, according to the digitally converted data signal, a first display data signal for the main pixel and a second display data for the sub-pixel corresponding to each of the data signals signal;
  • a selection module configured to select the first display data signal or the second display data signal as a corresponding data line signal according to a pixel brightness setting of the display panel
  • the frame rate control module is configured to perform a screen enhancement operation on the data line signal by using a picture frame frequency control mode.
  • the conversion module generates the first display data signal and the second display data signal by means of a look-up table.
  • the first display data signal is a high brightness display data signal; and the second display data signal is a low brightness display data signal.
  • the second display data signal is a high brightness display data signal; and the first display data signal is a low brightness display data signal.
  • the types of display data signals corresponding to the data line signals of adjacent pixel units are different.
  • the data line signal includes a red data line signal, a blue data line signal, and a green data line signal.
  • the data line signal includes a red data line signal, a blue data line signal, a green data line signal, and a white data line signal.
  • the display driving circuit and the liquid crystal display panel of the present invention generate a first display data signal and a second display data signal for directly displaying by the conversion module, thereby eliminating the need for liquid crystal
  • the multi-domain structure is arranged on the display panel, thereby reducing the power consumption and the manufacturing cost of the liquid crystal display panel; and solving the technical problem that the existing liquid crystal display has large power consumption and high production cost.
  • FIG. 1 is a schematic structural view of a first preferred embodiment of a display driving circuit of the present invention
  • FIG. 2 is a specific circuit diagram of a first preferred embodiment of the display driving circuit of the present invention.
  • FIG. 3 is a schematic structural view of a second preferred embodiment of the display driving circuit of the present invention.
  • FIG. 1 is a schematic structural view of a first preferred embodiment of a display driving circuit according to the present invention
  • FIG. 2 is a specific circuit diagram of a first preferred embodiment of the display driving circuit of the present invention.
  • the display driving circuit 10 of the preferred embodiment is for providing a data signal to a corresponding display panel.
  • the display driving circuit 10 includes a conversion module 11, a selection module 12, and a frame rate control module 13.
  • the conversion module 11 is configured to perform digital conversion on the raw data signal 14 and generate a first display data signal 15 for the main pixel and a second display data signal 16 for the sub-pixel based on the digitally converted data signal.
  • the selection module 12 is configured to select the first display data signal 15 or the second display data signal 16 as a corresponding data line signal according to the pixel brightness setting of the display panel.
  • the frame rate control module 13 is configured to perform a screen enhancement operation on the data line signal by using a picture frame frequency control mode.
  • the first display data signal 15 in the display driving circuit 10 of the preferred embodiment is a high brightness display data signal
  • the second display data signal 16 is a low brightness display data signal.
  • the conversion module 11 of the display driving circuit 10 first performs digital conversion on the original data signal, such as converting the 8-bit original data signal into a 12-bit data signal, which may be red data.
  • the conversion module 11 then generates a first display data signal 15 for the main pixel and a second display data signal 16 for the sub-pixel corresponding to each data signal by means of a look-up table.
  • the red data signal R can be converted into the first display data signal RH and the second display data signal RL;
  • the blue data signal B can be converted into the first display data signal BH and the second display data signal BL;
  • the green data signal G can be converted The first display data signal GH and the second display data signal GL;
  • the white data signal W can be converted into a first display data signal WH and a second display data signal WL.
  • the selection module 12 selects the first display data signal 15 or the second display data signal 16 as the corresponding data line signal according to the pixel brightness setting of the display panel.
  • the data line signals of the adjacent pixel units are different in the type of the display data signals.
  • the last frame rate control module 13 passes the frame frame frequency control mode (FRC, Frame Rate). Control) performs a screen enhancement process on the data line signal selected by the selection module 12.
  • the picture frame control mode means that the pixel chrominance can be switched between the darker and brighter chrominance in the picture frame switching process, thereby generating the intermediate chrominance, and the four picture frames can generate three intermediate chrominances, so that The resolution of the image is improved based on the manufacturing cost of the display driving circuit 10.
  • the display driving circuit of the preferred embodiment generates a first display data signal and a second display data signal that can be directly displayed for display by the conversion module, thereby eliminating the need to provide a multi-domain structure on the liquid crystal display panel, thereby reducing the liquid crystal display. Panel power consumption and production costs.
  • FIG. 2 is a schematic structural view of a first preferred embodiment of the display driving circuit of the present invention.
  • the display driving circuit 20 of the preferred embodiment is for providing a data signal to a corresponding display panel.
  • the display driving circuit 20 includes a conversion module 21, a selection module 22, and a frame rate control module 23.
  • the second display data signal 26 of the display driving circuit 20 of the preferred embodiment is a high brightness display data signal
  • the first display data signal 25 is a low brightness display data signal
  • the conversion module 21 of the display driving circuit 20 first performs digital conversion on the original data signal 24, such as converting an 8-bit original data signal into a 12-bit data signal, which may be red.
  • the conversion module 21 then generates a first display data signal 25 for the main pixel and a second display data signal 26 for the sub-pixel corresponding to each data signal by means of a look-up table.
  • the red data signal R can be converted into the first display data signal RL and the second display data signal RH;
  • the blue data signal B can be converted into the first display data signal BL and the second display data signal BH;
  • the green data signal G can be converted The first display data signal GL and the second display data signal GH;
  • the white data signal W can be converted into a first display data signal WL and a second display data signal WH.
  • the selection module 22 selects the first display data signal 25 or the second display data signal 26 as the corresponding data line signal based on the pixel brightness setting of the display panel.
  • the data line signals of the adjacent pixel units are different in the type of the display data signals.
  • the last frame rate control module 23 passes the picture frame frequency control mode (FRC, Frame Rate). Control) performs a screen enhancement process on the data line signal selected by the selection module 22. This can improve the resolution of the image without increasing the manufacturing cost of the display driving circuit 20.
  • FRC Picture Frame frequency control mode
  • Control performs a screen enhancement process on the data line signal selected by the selection module 22. This can improve the resolution of the image without increasing the manufacturing cost of the display driving circuit 20.
  • the display driving circuit of the preferred embodiment also generates the first display data signal and the second display data signal for direct display by the conversion module, thereby eliminating the need to provide a multi-domain structure on the liquid crystal display panel, thereby reducing the liquid crystal Display panel power consumption and production cost.
  • the present invention also provides a liquid crystal display panel including a display panel and a display driving circuit for providing a data signal to the display panel, wherein the display driving circuit includes a conversion module, a selection module, and a frame rate control module.
  • the conversion module is configured to perform digital conversion on the original data signal, and generate a first display data signal for the main pixel and a second display data signal for the sub-pixel according to the digitally converted data signal.
  • the selection module is configured to select the first display data signal or the second display data signal as the corresponding data line signal according to the pixel brightness setting of the display panel.
  • the frame rate control module is configured to perform a picture enhancement operation on the data line signal by using a picture frame frequency control mode.
  • the conversion module generates the first display data signal and the second display data signal by means of table lookup.
  • the first display data signal is a high brightness display data signal; the second display data signal is a low brightness display data signal; or the second display data signal is a high brightness display data signal; the first display data signal is a low brightness display data signal.
  • the types of display data signals corresponding to the data line signals of the adjacent pixel units are different.
  • the data line signal comprises a red data line signal, a blue data line signal and a green data line signal; or the data line signal comprises a red data line signal, a blue data line signal, a green data line signal and a white data line signal.
  • the specific working principle of the liquid crystal display panel of the present invention is the same as or similar to that described in the preferred embodiment of the display driving circuit described above. For details, refer to the related description in the preferred embodiment of the display driving circuit.
  • the display driving circuit and the liquid crystal display panel of the present invention generate a first display data signal and a second display data signal for directly displaying by the conversion module, thereby eliminating the need to provide a multi-domain structure on the liquid crystal display panel, thereby reducing the liquid crystal
  • the power consumption of the display panel and the manufacturing cost are solved; the technical problems of the existing liquid crystal display having large power consumption and high production cost are solved.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (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)
  • Liquid Crystal Display Device Control (AREA)

Abstract

一种显示驱动电路(10,20),其包括转换模块(11,21)、选择模块(12,22)以及帧率控制模块(13,23);转换模块(11,21)用于原始数据信号(14,24)进行数位转换,并生成第一显示数据信号(15,25)以及第二显示数据信号(16,26);选择模块(12,22)用于根据显示面板的像素亮度设置,选择第一显示数据信号(15,25)或第二显示数据信号(16,26)作为相应的数据线信号;帧率控制模块(13,23)用于对数据线信号进行画面增强操作。

Description

显示驱动电路及液晶显示面板 技术领域
本发明涉及液晶显示技术领域,特别涉及一种显示驱动电路及液晶显示面板。
背景技术
现有的液晶显示面板的显示驱动电路通常由时序控制模块、过驱动模块、白平衡模块以及数据转换模块等组成。其中白平衡调节的目的是为了适应不同人种对颜色的主观感受,其可将原始数据由8bit转化为12bit,调节各个白色灰阶画面时红绿蓝三色所占比例,并细调白色各灰阶的亮度,使得整体显示画面符合Gamma2.2。
但现有的液晶显示器由于液晶分子具有光学的各向异性特性,因此液晶显示器通常存在大视角下的色偏问题,即在大视角下容易观看到颜色失真的画面,降低液晶显示器的大视角观看效果。
现有的液晶显示器一般采用液晶像素多畴结构技术,即将像素单元划分为更小的显示单元,每个显示单元的主像素和子像素的驱动电压成一定比例,从而使得每个显示单元的液晶分子偏转角度不同,进而改善液晶显示器的色偏问题。
但多畴结构的液晶面板存在着穿透率低的缺点,为了使液晶显示器的亮度能达到一定的规格,需要增加背光源的工作功率,因此导致液晶显示器的功耗增大且制作成本增高。
故,有必要提供一种显示驱动电路及液晶显示面板,以解决现有技术所存在的问题。
技术问题
本发明实施例提供一种功耗较小且制作成本较低的显示驱动电路及液晶显示面板;以解决现有的液晶显示器的功耗较大且制作成本较高的技术问题。
技术解决方案
本发明实施例提供一种显示驱动电路,用于向相应的显示面板提供数据信号,其包括:
转换模块,用于原始数据信号进行数位转换,并根据数位转换后的数据信号,通过查表的方式生成每个所述数据信号对应的用于主像素的第一显示数据信号以及用于子像素的第二显示数据信号;
选择模块,用于根据显示面板的像素亮度设置,选择所述第一显示数据信号或所述第二显示数据信号作为相应的数据线信号;以及
帧率控制模块,用于通过画面帧频率控制方式,对所述数据线信号进行画面增强操作;
其中,相邻像素单元的数据线信号对应的显示数据信号的种类不同。
在本发明所述的显示驱动电路中,所述第一显示数据信号为高亮度显示数据信号;所述第二显示数据信号为低亮度显示数据信号。
在本发明所述的显示驱动电路中,所述第二显示数据信号为高亮度显示数据信号;所述第一显示数据信号为低亮度显示数据信号。
在本发明所述的显示驱动电路中,所述数据线信号包括红色数据线信号、蓝色数据线信号以及绿色数据线信号。
在本发明所述的显示驱动电路中,所述数据线信号包括红色数据线信号、蓝色数据线信号、绿色数据线信号以及白色数据线信号。
本发明实施例还提供一种显示驱动电路,用于向相应的显示面板提供数据信号,其包括:
转换模块,用于原始数据信号进行数位转换,并根据数位转换后的数据信号,生成每个所述数据信号对应的用于主像素的第一显示数据信号以及用于子像素的第二显示数据信号;
选择模块,用于根据显示面板的像素亮度设置,选择所述第一显示数据信号或所述第二显示数据信号作为相应的数据线信号;以及
帧率控制模块,用于通过画面帧频率控制方式,对所述数据线信号进行画面增强操作。
在本发明所述的显示驱动电路中,所述转换模块通过查表的方式生成所述第一显示数据信号以及所述第二显示数据信号。
在本发明所述的显示驱动电路中,所述第一显示数据信号为高亮度显示数据信号;所述第二显示数据信号为低亮度显示数据信号。
在本发明所述的显示驱动电路中,所述第二显示数据信号为高亮度显示数据信号;所述第一显示数据信号为低亮度显示数据信号。
在本发明所述的显示驱动电路中,相邻像素单元的数据线信号对应的显示数据信号的种类不同。
在本发明所述的显示驱动电路中,所述数据线信号包括红色数据线信号、蓝色数据线信号以及绿色数据线信号。
在本发明所述的显示驱动电路中,所述数据线信号包括红色数据线信号、蓝色数据线信号、绿色数据线信号以及白色数据线信号。
本发明实施例还提供一种液晶显示面板,其包括显示面板以及用于向相所述显示面板提供数据信号显示驱动电路,其中所述显示驱动电路包括:
转换模块,用于原始数据信号进行数位转换,并根据数位转换后的数据信号,生成每个所述数据信号对应的用于主像素的第一显示数据信号以及用于子像素的第二显示数据信号;
选择模块,用于根据显示面板的像素亮度设置,选择所述第一显示数据信号或所述第二显示数据信号作为相应的数据线信号;以及
帧率控制模块,用于通过画面帧频率控制方式,对所述数据线信号进行画面增强操作。
在本发明所述的液晶显示面板中,所述转换模块通过查表的方式生成所述第一显示数据信号以及所述第二显示数据信号。
在本发明所述的液晶显示面板中,所述第一显示数据信号为高亮度显示数据信号;所述第二显示数据信号为低亮度显示数据信号。
在本发明所述的液晶显示面板中,所述第二显示数据信号为高亮度显示数据信号;所述第一显示数据信号为低亮度显示数据信号。
在本发明所述的液晶显示面板中,相邻像素单元的数据线信号对应的显示数据信号的种类不同。
在本发明所述的液晶显示面板中,所述数据线信号包括红色数据线信号、蓝色数据线信号以及绿色数据线信号。
在本发明所述的液晶显示面板中,所述数据线信号包括红色数据线信号、蓝色数据线信号、绿色数据线信号以及白色数据线信号。
有益效果
相对现有的显示驱动电路及液晶显示面板,本发明的显示驱动电路及液晶显示面板通过转换模块生成可直接显示用于显示的第一显示数据信号以及第二显示数据信号,从而不需要在液晶显示面板上设置多畴结构,因此降低了液晶显示面板的功耗以及制作成本;解决了现有的液晶显示器的功耗较大且制作成本较高的技术问题。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面对实施例中所需要使用的附图作简单的介绍。下面描述中的附图仅为本发明的部分实施例,对于本领域普通技术人员而言,在不付出创造性劳动的前提下,还可以根据这些附图获取其他的附图。
图1为本发明的显示驱动电路的第一优选实施例的结构示意图;
图2为本发明的显示驱动电路的第一优选实施例的具体电路图;
图3为本发明的显示驱动电路的第二优选实施例的结构示意图。
本发明的最佳实施方式
请参照附图中的图式,其中相同的组件符号代表相同的组件。以下的说明是基于所例示的本发明具体实施例,其不应被视为限制本发明未在此详述的其它具体实施例。
请参照图1和图2,图1为本发明的显示驱动电路的第一优选实施例的结构示意图;图2为本发明的显示驱动电路的第一优选实施例的具体电路图。本优选实施例的显示驱动电路10用于向相应的显示面板提供数据信号,该显示驱动电路10包括转换模块11、选择模块12以及帧率控制模块13。
转换模块11用于原始数据信号14进行数位转换,并根据数位转换后的数据信号,生成用于主像素的第一显示数据信号15以及用于子像素的第二显示数据信号16。选择模块12用于根据显示面板的像素亮度设置,选择第一显示数据信号15或第二显示数据信号16作为相应的数据线信号。帧率控制模块13用于通过画面帧频率控制方式,对数据线信号进行画面增强操作。
本优选实施例的显示驱动电路10中的第一显示数据信号15为高亮度显示数据信号,第二显示数据信号16为低亮度显示数据信号。
本优选实施例的显示驱动电路10使用时,首先显示驱动电路10的转换模块11对原始数据信号进行数位转换,如将8bit的原始数据信号转换为12bit的数据信号,该数据信号可为红色数据信号(R),蓝色数据信号(B)以及绿色数据信号(G)或红色数据信号(R),蓝色数据信号(B)、绿色数据信号(G)以及白色数据信号(W)。
随后转换模块11通过查表的方式生成每个数据信号对应的用于主像素的第一显示数据信号15以及用于子像素的第二显示数据信号16。如红色数据信号R可转换为第一显示数据信号RH以及第二显示数据信号RL;蓝色数据信号B可转换为第一显示数据信号BH以及第二显示数据信号BL;绿色数据信号G可转换为第一显示数据信号GH以及第二显示数据信号GL;白色数据信号W可转换为可转换为第一显示数据信号WH以及第二显示数据信号WL。
然后选择模块12根据显示面板的像素亮度设置,选择第一显示数据信号15或第二显示数据信号16作为相应的数据线信号。为了解决液晶显示器的色偏问题,需要对液晶显示面板的相邻像素单元设置明暗亮度交替,因此这里设置相邻像素单元的数据线信号对应显示数据信号的种类不同。
最后帧率控制模块13通过画面帧频率控制方式(FRC,Frame Rate Control),对选择模块12选择的数据线信号进行画面增强处理。这里画面帧控制方式是指像素色度可以在画面帧切换过程中的较暗和较亮的色度间切换,从而产生中间色度,四个画面帧可以产生三个中间色度,这样可以不提高显示驱动电路10的制作成本基础上,提升图像的分辨率。
这样完成了本优选实施例的显示驱动电路10的数据信号产生过程。
本优选实施例的显示驱动电路的通过转换模块生成可直接显示用于显示的第一显示数据信号以及第二显示数据信号,从而不需要在液晶显示面板上设置多畴结构,因此降低了液晶显示面板的功耗以及制作成本。
请参照图2,图2为本发明的显示驱动电路的第一优选实施例的结构示意图。本优选实施例的显示驱动电路20用于向相应的显示面板提供数据信号,显示驱动电路20包括转换模块21、选择模块22以及帧率控制模块23。
在第一优选实施例的基础上,本优选实施例的显示驱动电路20的第二显示数据信号26为高亮度显示数据信号,第一显示数据信号25为低亮度显示数据信号。
本优选实施例的显示驱动电路20使用时,首先显示驱动电路20的转换模块21对原始数据信号24进行数位转换,如将8bit的原始数据信号转换为12bit的数据信号,该数据信号可为红色数据信号(R),蓝色数据信号(B)以及绿色数据信号(G)或红色数据信号(R),蓝色数据信号(B)、绿色数据信号(G)以及白色数据信号(W)。
随后转换模块21通过查表的方式生成每个数据信号对应的用于主像素的第一显示数据信号25以及用于子像素的第二显示数据信号26。如红色数据信号R可转换为第一显示数据信号RL以及第二显示数据信号RH;蓝色数据信号B可转换为第一显示数据信号BL以及第二显示数据信号BH;绿色数据信号G可转换为第一显示数据信号GL以及第二显示数据信号GH;白色数据信号W可转换为可转换为第一显示数据信号WL以及第二显示数据信号WH。
然后选择模块22根据显示面板的像素亮度设置,选择第一显示数据信号25或第二显示数据信号26作为相应的数据线信号。为了解决液晶显示器的色偏问题,需要对液晶显示面板的相邻像素单元设置明暗亮度交替,因此这里设置相邻像素单元的数据线信号对应显示数据信号的种类不同。
最后帧率控制模块23通过画面帧频率控制方式(FRC,Frame Rate Control),对选择模块22选择的数据线信号进行画面增强处理。这样可以不提高显示驱动电路20的制作成本基本上,提升图像的分辨率。
这样完成了本优选实施例的显示驱动电路20的数据信号产生过程。
本优选实施例的显示驱动电路的同样通过转换模块生成可直接显示用于显示的第一显示数据信号以及第二显示数据信号,从而不需要在液晶显示面板上设置多畴结构,因此降低了液晶显示面板的功耗以及制作成本。
本发明还提供一种液晶显示面板,该液晶显示面板包括显示面板以及用于向显示面板提供数据信号的显示驱动电路,其中该显示驱动电路包括转换模块、选择模块以及帧率控制模块。
转换模块用于原始数据信号进行数位转换,并根据数位转换后的数据信号,生成用于主像素的第一显示数据信号以及用于子像素的第二显示数据信号。选择模块用于根据显示面板的像素亮度设置,选择第一显示数据信号或第二显示数据信号作为相应的数据线信号。帧率控制模块用于通过画面帧频率控制方式,对数据线信号进行画面增强操作。
优选的,转换模块通过查表的方式生成第一显示数据信号以及第二显示数据信号。
优选的,第一显示数据信号为高亮度显示数据信号;第二显示数据信号为低亮度显示数据信号;或第二显示数据信号为高亮度显示数据信号;第一显示数据信号为低亮度显示数据信号。
优选的,相邻像素单元的数据线信号对应的显示数据信号的种类不同。
优选的,数据线信号包括红色数据线信号、蓝色数据线信号以及绿色数据线信号;或数据线信号包括红色数据线信号、蓝色数据线信号、绿色数据线信号以及白色数据线信号。
本发明的液晶显示面板的具体工作原理与上述的显示驱动电路的优选实施例中的描述相同或相似,具体请参见上述显示驱动电路的优选实施例中的相关描述。
本发明的显示驱动电路及液晶显示面板通过转换模块生成可直接显示用于显示的第一显示数据信号以及第二显示数据信号,从而不需要在液晶显示面板上设置多畴结构,因此降低了液晶显示面板的功耗以及制作成本;解决了现有的液晶显示器的功耗较大且制作成本较高的技术问题。
综上所述,虽然本发明已以优选实施例揭露如上,但上述优选实施例并非用以限制本发明,本领域的普通技术人员,在不脱离本发明的精神和范围内,均可作各种更动与润饰,因此本发明的保护范围以权利要求界定的范围为准。

Claims (19)

  1. 一种显示驱动电路,用于向相应的显示面板提供数据信号,其包括:
    转换模块,用于原始数据信号进行数位转换,并根据数位转换后的数据信号,通过查表的方式生成每个所述数据信号对应的用于主像素的第一显示数据信号以及用于子像素的第二显示数据信号;
    选择模块,用于根据显示面板的像素亮度设置,选择所述第一显示数据信号或所述第二显示数据信号作为相应的数据线信号;以及
    帧率控制模块,用于通过画面帧频率控制方式,对所述数据线信号进行画面增强操作;
    其中,相邻像素单元的数据线信号对应的显示数据信号的种类不同。
  2. 根据权利要求1所述的显示驱动电路,其中所述第一显示数据信号为高亮度显示数据信号;所述第二显示数据信号为低亮度显示数据信号。
  3. 根据权利要求1所述的显示驱动电路,其中所述第二显示数据信号为高亮度显示数据信号;所述第一显示数据信号为低亮度显示数据信号。
  4. 根据权利要求1所述的显示驱动电路,其中所述数据线信号包括红色数据线信号、蓝色数据线信号以及绿色数据线信号。
  5. 根据权利要求1所述的显示驱动电路,其中所述数据线信号包括红色数据线信号、蓝色数据线信号、绿色数据线信号以及白色数据线信号。
  6. 一种显示驱动电路,用于向相应的显示面板提供数据信号,其包括:
    转换模块,用于原始数据信号进行数位转换,并根据数位转换后的数据信号,生成每个所述数据信号对应的用于主像素的第一显示数据信号以及用于子像素的第二显示数据信号;
    选择模块,用于根据显示面板的像素亮度设置,选择所述第一显示数据信号或所述第二显示数据信号作为相应的数据线信号;以及
    帧率控制模块,用于通过画面帧频率控制方式,对所述数据线信号进行画面增强操作。
  7. 根据权利要求6所述的显示驱动电路,其中所述转换模块通过查表的方式生成所述第一显示数据信号以及所述第二显示数据信号。
  8. 根据权利要求6所述的显示驱动电路,其中所述第一显示数据信号为高亮度显示数据信号;所述第二显示数据信号为低亮度显示数据信号。
  9. 根据权利要求6所述的显示驱动电路,其中所述第二显示数据信号为高亮度显示数据信号;所述第一显示数据信号为低亮度显示数据信号。
  10. 根据权利要求6所述的显示驱动电路,其中相邻像素单元的数据线信号对应的显示数据信号的种类不同。
  11. 根据权利要求6所述的显示驱动电路,其中所述数据线信号包括红色数据线信号、蓝色数据线信号以及绿色数据线信号。
  12. 根据权利要求6所述的显示驱动电路,其中所述数据线信号包括红色数据线信号、蓝色数据线信号、绿色数据线信号以及白色数据线信号。
  13. 一种液晶显示面板,其包括显示面板以及用于向所述显示面板提供数据信号的显示驱动电路,其中所述显示驱动电路包括:
    转换模块,用于原始数据信号进行数位转换,并根据数位转换后的数据信号,生成每个所述数据信号对应的用于主像素的第一显示数据信号以及用于子像素的第二显示数据信号;
    选择模块,用于根据显示面板的像素亮度设置,选择所述第一显示数据信号或所述第二显示数据信号作为相应的数据线信号;以及
    帧率控制模块,用于通过画面帧频率控制方式,对所述数据线信号进行画面增强操作。
  14. 根据权利要求13所述的液晶显示面板,其中所述转换模块通过查表的方式生成所述第一显示数据信号以及所述第二显示数据信号。
  15. 根据权利要求13所述的液晶显示面板,其中所述第一显示数据信号为高亮度显示数据信号;所述第二显示数据信号为低亮度显示数据信号。
  16. 根据权利要求13所述的液晶显示面板,其中所述第二显示数据信号为高亮度显示数据信号;所述第一显示数据信号为低亮度显示数据信号。
  17. 根据权利要求13所述的液晶显示面板,其中相邻像素单元的数据线信号对应的显示数据信号的种类不同。
  18. 根据权利要求13所述的液晶显示面板,其中所述数据线信号包括红色数据线信号、蓝色数据线信号以及绿色数据线信号。
  19. 根据权利要求13所述的液晶显示面板,其中所述数据线信号包括红色数据线信号、蓝色数据线信号、绿色数据线信号以及白色数据线信号。
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