WO2017096687A1 - 显示面板扫描驱动方法 - Google Patents

显示面板扫描驱动方法 Download PDF

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Publication number
WO2017096687A1
WO2017096687A1 PCT/CN2016/070286 CN2016070286W WO2017096687A1 WO 2017096687 A1 WO2017096687 A1 WO 2017096687A1 CN 2016070286 W CN2016070286 W CN 2016070286W WO 2017096687 A1 WO2017096687 A1 WO 2017096687A1
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Prior art keywords
clock signal
scan
display panel
driving method
lines
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PCT/CN2016/070286
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English (en)
French (fr)
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王笑笑
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深圳市华星光电技术有限公司
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Priority to US14/906,557 priority Critical patent/US20170169785A1/en
Publication of WO2017096687A1 publication Critical patent/WO2017096687A1/zh

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3648—Control of matrices with row and column drivers using an active matrix
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3674—Details of drivers for scan electrodes
    • G09G3/3677—Details of drivers for scan electrodes suitable for active matrices only
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1345—Conductors connecting electrodes to cell terminals
    • G02F1/13454—Drivers integrated on the active matrix substrate
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/136286—Wiring, e.g. gate line, drain line
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3685—Details of drivers for data electrodes
    • G09G3/3688—Details of drivers for data electrodes suitable for active matrices only
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device
    • 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
    • G09G2310/0202—Addressing of scan or signal lines
    • 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
    • G09G2310/0202—Addressing of scan or signal lines
    • G09G2310/0205—Simultaneous scanning of several lines in flat panels

Definitions

  • the invention relates to the field of liquid crystal display, and in particular to a scanning driving method for a display panel.
  • a main object of the present invention is to provide a scan driving method for a display panel, which can effectively reduce cost and improve quality, and can be simultaneously applied to a 2D/3D display mode.
  • the present invention provides a scan driving method for a display panel, the display panel including a pixel driving circuit, the pixel driving circuit including n scanning lines and m data lines; And the data lines are interleaved with each other to define a plurality of pixel units, and the scan driving method comprises the following steps:
  • the x-th scan line is turned on with a clock signal of no more than 45% duty cycle, and the x+2th scan line is turned on at the same time, where x is a positive integer, 1 ⁇ x ⁇ n-2. .
  • the first strip and the third scan line are connected in common to one clock signal input end; the second strip and the fourth scan line are connected to another clock signal input end.
  • the clock signal outputted by the clock signal input terminal has a duty ratio of 40% to 45%.
  • each of the eight scan lines is connected to eight clock signal inputs.
  • the clock signal outputted by the clock signal input terminal has a duty ratio of 25%.
  • the clock signal outputted by the clock signal input terminal has a duty ratio of 40% to 45%, wherein the first to fourth scan lines are simultaneously turned on according to the same clock signal.
  • the present invention is mainly based on the fact that in order to have different signal writing in adjacent pixel units in the vertical direction (ie, column direction) of the pixel driving circuit, four scanning lines are grouped, and each group of the third scanning line and the first The two scanning lines receive the timing switching of the clock signal, and ensure that the gates of the first scanning line and the third scanning line are simultaneously turned on, and the gates of the second scanning line and the fourth scanning line are simultaneously turned on, so In one case, the charging time of the corresponding pixel unit can be doubled, and the display quality is effectively improved.
  • the charging time of the corresponding pixel unit can be doubled, and the display quality is effectively improved.
  • FIG. 1 is a schematic diagram of a pixel driving circuit in accordance with an embodiment of the present invention.
  • FIG. 2 is a flow chart of a scan driving method of the present invention.
  • Fig. 3 is a timing chart of signal lines of the first embodiment of the present invention.
  • Fig. 4 is a timing chart of a signal line of the second embodiment of the present invention.
  • Fig. 5 is a timing chart of a signal line of a third embodiment of the present invention.
  • Fig. 6 is a timing chart of a signal line of a fourth embodiment of the present invention.
  • GOA Gate on Array technology
  • TFT-LCD Thin Film Transistor Liquid Crystal Display
  • the gate drive chip can be omitted.
  • the gate side driving circuit is directly disposed on the TFT array substrate, and the conventional scanning driving chip is omitted. While reducing costs, this method can also help the realization of narrow borders and even borderless panels, and enhance the market competitiveness of liquid crystal display products.
  • FIG. 1 is a schematic diagram of a pixel driving circuit according to an embodiment of the present invention.
  • the pixel driving circuit is used for a liquid crystal display panel, and includes a plurality of scanning lines G1, G2, G3, . . . , Gn, where n is a positive integer, a plurality of data lines D1, D2, D3, ..., D2m, where m is positive Integer.
  • the scanning lines extend in the horizontal direction (row direction) and are arranged in parallel in the vertical direction (column direction).
  • the data lines extend in the vertical direction and are arranged in parallel in the horizontal direction.
  • the scan lines and the data lines are interleaved with each other to define a plurality of pixel units.
  • FIG. 2 is a flowchart of the scan driving method of the present invention
  • FIG. 3 is a timing chart of the signal line of the first embodiment of the present invention.
  • the scan driving method of the embodiment is a group of four scanning lines. The timings of opening the third scanning line and the second scanning line in each group are reversed, and the scanning lines of the first and third lines are simultaneously opened, and the scanning lines of the second and fourth lines are simultaneously opened.
  • the charging time of the corresponding pixel unit is doubled, and the specific scan driving waveform is as shown in FIG. 2 . That is to say, the scan driving method of this embodiment, as shown in FIG. 2, includes the following steps:
  • the pixel driving circuit of the present invention can be designed to have two clock signal input terminals, four clock signal input terminals or eight clock signal input terminals, and preferably the output does not exceed 45% duty. Than the clock signal.
  • the first and third scan lines are connected to a clock signal input terminal CK1; the second and the second Four scan lines are connected to the other clock signal input terminal CK2. Therefore, the clock signal input by the clock signal input terminal CK1 can simultaneously turn on the scan lines G(N+1) and G(N+3); the clock signal of the other clock signal input terminal CK2 simultaneously turns on the scan line G (N+2). ) and G(N+4).
  • the scan line receives the clock signal and is turned on in the order of G(1&3) ⁇ G(2&4) ⁇ G(5&7) ⁇ G(6&8)..., and so on.
  • the duty ratio of the clock signal outputted by the clock signal input terminal is preferably set to 40% ⁇ 45%.
  • the scan lines are respectively connected to eight clock signal input ends. That is, CK1, CK2, ..., CK8 are respectively connected to G(N+1), G(N+2), ...G(N+8), and then the corresponding clock signals are output by controlling the eight clock signal input terminals. Simultaneously turn on the scan lines G(N+1) and G(N+3), G(N+2) and G(N+4), G(N+5) and G(N+7), G(N+ 6) and G(N+8).
  • the scanning line receives the clock signal and is turned on in the order of G.
  • the duty ratio of the clock signal is preferably set to 25%.
  • the traces are longer and the line width is finer, resulting in RC
  • the delay causes the waveform distortion in the transmission process to be more serious, which causes the output gate signal waveform to be deformed, resulting in insufficient charging or mischarge.
  • This embodiment utilizes 8 clock signal inputs to mitigate RC Waveform distortion caused by delay.
  • the pixel driving circuit needs to be designed to have four clock signal input terminals or eight clock signal input terminals, wherein the duty ratio of the clock signal outputted by the clock signal input terminal is preferably set to 40% to 45%, so that the first ⁇ 4 scan lines are turned on simultaneously according to the same clock signal.
  • the signal transmission method is the same as the transmission mode of the 2D drive shown in FIG.
  • the present invention is mainly based on the fact that in the pixel driving circuit, adjacent pixel units in the vertical direction (ie, column direction) have different signal writing, and four scanning lines are used as a group, so that each group is 3rd.
  • the scanning line and the second scanning line receive the timing of the clock signal, and ensure that the gates of the first scanning line and the third scanning line are simultaneously turned on, and the gates of the second scanning line and the fourth scanning line are simultaneously opened. It is turned on at the same time, so that the charging time of the corresponding pixel unit can be doubled, and the display quality is effectively improved.

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

Abstract

一种显示面板扫描驱动方法，所述显示面板包含一像素驱动电路，所述像素驱动电路包括n条扫描线与m条数据线；所述扫描线与所述数据线彼此交错定义数个像素单元，所述扫描驱动方法包含以不超过45％占空比的时钟信号开启第x行扫描线，并同时开启第x+2行扫描线，其中x为整数，1≤x≤n-2。

Description

显示面板扫描驱动方法 技术领域
本发明有关液晶显示领域，特别是有关于一种显示面板的扫描驱动方法。
 背景技术
现今，液晶显示器产业中，降低成本及提高品质是提高液晶面板业者竞争力的关键所在。其次，为了迎合市场需求，大尺寸面板的分辨率和穿透率被要求提高，使得每行扫描线打开的时间缩短，如此势必会导致像素充电不足。若充电不足，一方面会导致面板穿透率下降，欲维持显示相同的亮度就需要增加背光亮度，如此会增加背光模块的成本；另一方面，充电不足也会影响低灰阶画面的显示效果，使其更容易出现mura现象。现有解决像素充电不足的方式可以是通过特定的扫描驱动方法延长栅极开启时间。尽管如此，现有技术的扫描驱动电路仍欠缺能够有效降低成本并提高品质，且能够同时适用于2D/3D显示的解决方案。
故，有必要提供一种显示面板的扫描驱动方法，以解决现有技术所存在的问题。
 技术问题
有鉴于现有技术的缺点，本发明的主要目的在于提供一种显示面板的扫描驱动方法，以能够有效降低成本并提高品质，且能够同时适用于2D/3D显示模式。
 技术解决方案
为达成本发明的前述目的，本发明提供一种显示面板的扫描驱动方法，所述显示面板包含一像素驱动电路，所述像素驱动电路包括n条扫描线与m条数据线；所述扫描线与所述数据线彼此交错定义数个像素单元，所述扫描驱动方法包含下列步骤：
以不超过45%占空比的时钟信号开启第x行扫描线，并同时开启第x+2行扫描线，其中x为正整数，1≦x≦n-2。。
在本发明的一实施例中，奇数条的所述数据线连接第k行和第k+1行的像素单元，其中k=4n-3；偶数条的所述数据线连接第j行和第j+1行的像素单元，其中j=4n-1。
在本发明的一实施例中，每四条所述扫描线中，第一条和第三条扫描线共同连接一时钟信号输入端；第二条和第四条扫描线连接另一时钟信号输入端。
在本发明的一实施例中，所述时钟信号输入端输出的时钟信号的占空比为40%~45%。
在本发明的一实施例中，每八条所述扫描线中，所述扫描线分别连接至八个时钟信号输入端。
在本发明的一实施例中，所述时钟信号输入端输出的时钟信号的占空比为25%。
在本发明的一实施例中，所述时钟信号输入端输出的时钟信号的占空比为40%~45%，其中第1~4条扫描线根据同样的时钟信号同时开启。
本发明主要是基于为了让像素驱动电路中垂直方向上(即列方向)上相邻的像素单元有不同的讯号写入，以四条扫描线为一组，让每组第三条扫描线和第二条扫描线接收时钟讯号的时序调换，同时保证第一条扫描线和第三条扫描线上的栅极同时打开，第二条扫描线和第四条扫描线上的栅极同时打开，如此一来，可使对应的像素单元的充电时间加倍，有效提高显示品质。
有益效果
可使对应的像素单元的充电时间加倍，有效提高显示品质。
 附图说明
图1是本发明一实施例的像素驱动电路的示意图。
图2是本发明的扫描驱动方法的流程图。
图3是本发明第一实施例的信号线的时序图。
图4是本发明第二实施例的信号线的时序图。
图5是本发明第三实施例的信号线的时序图。
图6是本发明第四实施例的信号线的时序图。
 本发明的最佳实施方式
为让本发明上述目的、特征及优点更明显易懂，下文特举本发明较佳实施例，并配合附图，作详细说明如下。再者，本发明所提到的方向用语，例如「上」、「下」、「前」、「后」、「左」、「右」、「内」、「外」、「侧面」等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本发明，而非用以限制本发明。
GOA(gate on array)技术是业界中可有效降低制造成本的常见方法，其主要是将扫描驱动电路直接制作于阵列基板上，也就是将栅极驱动芯片的功能通过TFT—LCD(薄膜晶体管液晶显示器)制程实现在玻璃基板上，故可省去栅极驱动芯片的设置。本发明在双数据线驱动架构的基础下，将栅极侧驱动电路直接设置在TFT阵列基板上，省略传统的扫描驱动芯片。在降低成本的同时，此方式还可以帮助窄边框甚至无边框面板的实现，提升液晶显示器产品的市场竞争力。
请参考图1所示，图1是本发明一实施例的像素驱动电路的示意图。所述像素驱动电路用于液晶显示面板，包括多条扫描线G1、G2、G3、…、Gn，其中n为正整数、多条数据线D1、D2、D3、…、D2m，其中m为正整数。所述扫描线沿着水平方向(行方向)延伸，并沿着垂直方向(列方向)平行排列。所述数据线沿着垂直方向延伸，并沿着水平方向平行排列。所述扫描线与所述数据线彼此交错定义数个像素单元。本实施例的像素驱动电路为一双数据线驱动电路，其中奇数条的数据线连接第k行和第k+1行的像素单元，其中k=4n-3，意即数据线D1、D3、D5、…D2m-1是连接第1、2、5、6、9、10、…行扫描线上的像素单元；偶数条的数据线连接第j行和第j+1行的像素单元，其中j=4n-1，意即数据线D2、D4、D6、…D2m是连接第3、4、7、8、11、12、…行扫描线上的像素单元。
请参考图2和图3所示，图2是本发明的扫描驱动方法的流程图；图3是本发明第一实施例的信号线的时序图。针对图1的像素驱动电路，为保证2D显示驱动下垂直方向(即列方向)上相邻像素单元有不同的数据写入，本实施例的扫描驱动方法是以每4条扫描线为一组，每组中的第3条扫描线和第2条扫描线打开的时序进行调换，同时使得第1条和第3条的扫描线同时打开，第2条和第4条的扫描线同时打开，使对应的像素单元的充电时间加倍，具体扫描驱动波形如图2所示。也就是说，本实施例的扫描驱动方法，如图2所示，包含下列步骤：
S100：是于第x行扫描线开启时，同时开启第x+2行扫描线，其中x为整数，1≦x≦n-2。
为了实现前述扫描线的驱动方式，本发明的像素驱动电路可设计成具有2个时钟信号输入端、4个时钟信号输入端或8个时钟信号输入端，且优选是输出不超过45%占空比的时钟信号。
请参考图4所示，以具有2个时钟信号输入端为例，每4条所述扫描线中，第1条和第3条扫描线共同连接一时钟信号输入端CK1；第2条和第4条扫描线连接另一时钟信号输入端CK2。因此，时钟信号输入端CK1输入的时钟信号可同时开启扫描线G(N+1)和G(N+3)；另一时钟信号输入端CK2的时钟信号则同时开启扫描线G(N+2)和G(N+4)。更详细地，所述扫描线接收时钟信号而开启的顺序为为G（1&3）→G（2&4）→G（5&7）→G（6&8）…，以此类推。为保证像素驱动电路的正常工作，所述时钟信号输入端输出的时钟信号的占空比优选设置为40%~45%
请参考图5所示，以具有8个时钟信号输入端为例，每8条所述扫描线中，所述扫描线分别连接至8个时钟信号输入端。意即CK1、CK2、…、CK8分别连接至G（N+1）、G（N+2）、…G（N+8），再通过控制这8个时钟信号输入端输出对应的时钟信号，同时开启扫描线G(N+1)和G(N+3)、G(N+2)和G(N+4)、G(N+5)和G(N+7)、G(N+6)和G(N+8)。更详细地，所述扫描线接收时钟信号而开启的顺序为G 1→G 5→G 9，G 2→G 6→G 10，G 3→G 7→G 11，G 4→G 8→G 12G…，以此类推。为保证像素驱动电路的正常工作，时钟信号的占空比优选设置为25%。对于大尺寸高分辨率的面板而言，其走线更长，且线宽更细，导致因为RC delay造成传递过程中波形失真越严重，进而使得输出的栅极信号波形变形，导致充电不足或者产生错充问题。本实施例利用8个时钟信号输入，可缓解RC delay造成的波形失真。
请参考图6所示，为了实现3D驱动，必须保持4条扫描线同时开启，以维持驱动芯片带宽不变，可保证左右眼分别收到60HZ的驱动讯号。故此时所述像素驱动电路需设计成具有4个时钟信号输入端或8个时钟信号输入端，其中时钟信号输入端输出的时钟信号的占空比优选设置为40%~45%，让第1~4条扫描线根据同样的时钟信号同时开启。其信号传递方式与图5所示的2D驱动的传递方式一致。
综上所述，本发明主要是基于为了让像素驱动电路中垂直方向上(即列方向)上相邻的像素单元有不同的讯号写入，以四条扫描线为一组，让每组第3条扫描线和第2条扫描线接收时钟讯号的时序调换，同时保证第1条扫描线和第3条扫描线上的栅极同时打开，第2条扫描线和第4条扫描线上的栅极同时打开，如此一来，可使对应的像素单元的充电时间加倍，有效提高显示品质。
本发明已由上述相关实施例加以描述，然而上述实施例仅为实施本发明的范例。必需指出的是，已公开的实施例并未限制本发明的范围。相反地，包含于权利要求书的精神及范围的修改及均等设置均包括于本发明的范围内。

Claims (10)

  1. 一种显示面板扫描驱动方法，其中，所述显示面板包含一像素驱动电路，所述像素驱动电路包括n条扫描线与m条数据线；所述扫描线与所述数据线彼此交错定义数个像素单元，所述扫描驱动方法包含下列步骤：
    以不超过45%占空比的时钟信号开启第x行扫描线，并同时开启第x+2行扫描线，其中x为正整数，1≦x≦n-2。
  2. 如权利要求1所述的显示面板扫描驱动方法，其中，奇数条的所述数据线连接第k行和第k+1行的像素单元，其中k=4n-3；偶数条的所述数据线连接第j行和第j+1行的像素单元，其中j=4n-1。
  3. 如权利要求1所述的显示面板扫描驱动方法，其中，每四条所述扫描线中，第一条和第三条扫描线共同连接一时钟信号输入端；第二条和第四条扫描线连接另一时钟信号输入端。
  4. 如权利要求3所述的显示面板扫描驱动方法，其中，所述时钟信号输入端输出的时钟信号的占空比为40%~45%。
  5. 如权利要求1所述的显示面板扫描驱动方法，其中，每八条所述扫描线中，所述扫描线分别连接至八个时钟信号输入端。
  6. 如权利要求5所述的显示面板扫描驱动方法，其中，所述时钟信号输入端输出的时钟信号的占空比为25%。
  7. 如权利要求5所述的显示面板扫描驱动方法，其中，所述时钟信号输入端输出的时钟信号的占空比为40%~45%，其中第1~4条扫描线根据同样的时钟信号同时开启。
  8. 一种显示面板扫描驱动方法，其中，所述显示面板包含一像素驱动电路，所述像素驱动电路包括n条扫描线与m条数据线；所述扫描线与所述数据线彼此交错定义数个像素单元；其中，奇数条的所述数据线连接第k行和第k+1行的像素单元，其中k=4n-3；偶数条的所述数据线连接第j行和第j+1行的像素单元，其中j=4n-1；每八条所述扫描线中，所述扫描线分别连接至八个时钟信号输入端；所述扫描驱动方法包含下列步骤：
    以不超过45%占空比的时钟信号开启第x行扫描线，并同时开启第x+2行扫描线，其中x为正整数，1≦x≦n-2。
  9. 如权利要求8所述的显示面板扫描驱动方法，其中，所述时钟信号输入端输出的时钟信号的占空比为25%。
  10. 如权利要求8所述的显示面板扫描驱动方法，其中，所述时钟信号输入端输出的时钟信号的占空比为40%~45%，其中第1~4条扫描线根据同样的时钟信号同时开启。
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