WO2016176888A1 - 液晶显示面板的驱动方法 - Google Patents
液晶显示面板的驱动方法 Download PDFInfo
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- WO2016176888A1 WO2016176888A1 PCT/CN2015/080746 CN2015080746W WO2016176888A1 WO 2016176888 A1 WO2016176888 A1 WO 2016176888A1 CN 2015080746 W CN2015080746 W CN 2015080746W WO 2016176888 A1 WO2016176888 A1 WO 2016176888A1
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- scan
- voltage difference
- liquid crystal
- crystal display
- display panel
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- 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
- G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
-
- 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
- G02F1/136—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
- 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
- G09G2310/0213—Addressing of scan or signal lines controlling the sequence of the scanning lines with respect to the patterns to be displayed, e.g. to save power
-
- 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
- G09G2310/0218—Addressing of scan or signal lines with collection of electrodes in groups for n-dimensional addressing
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
- G09G2330/021—Power management, e.g. power saving
Definitions
- the present invention relates to the field of liquid crystal display, and in particular to a method for driving a liquid crystal display panel.
- liquid crystal display devices have become an important medium for transmitting information.
- the display power consumption of the liquid crystal display panel has become a main source of power consumption of the liquid crystal display device, and thus it is more and more important to reduce the display power consumption of the liquid crystal display panel.
- a conventional liquid crystal display panel generally includes a data line, a scan line, a driving chip, and a pixel unit.
- the data line is used to transmit a data signal to the corresponding pixel unit
- the scan line is used to transmit a scan signal to the corresponding pixel unit
- the driving chip is used for the driving chip.
- the generated data signal and the scan signal drive the corresponding pixel unit.
- the driving method of the conventional liquid crystal display panel generally drives the pixel unit row by row through the data line and the scanning line. Specifically, the high-level signal is input to the pixel unit of the A1 row through the scan line, and then the data signal is input to the pixel unit of the A1 row through the data line. Then, a high-level signal is input to the pixel unit of the A2 row (the next row of the A1 row) through the scan line, and then the data signal is input to the pixel unit of the A2 row through the data line. If the voltage of the data signal corresponding to the pixel unit of the A1 row is different from the voltage of the data signal corresponding to the pixel unit of the A2 row, the power consumption of the driving chip is increased.
- An object of the present invention is to provide a driving method for a liquid crystal display panel with low power consumption, and to solve the technical problem of large power consumption of the driving method of the conventional liquid crystal display panel.
- An embodiment of the present invention provides a driving method of a liquid crystal display panel, where the liquid crystal display panel includes:
- a pixel unit which is formed by interleaving the data line and the scan line, and performs screen display by using the data signal and the scan signal; wherein the driving method comprises:
- each of the scan line groups includes four of the scan lines
- the step of calculating a driving voltage difference of the data signals of the pixel units corresponding to the scan lines corresponding to the scan lines of each of the scan line groups in different scan orders includes:
- the two adjacent data signals refer to two of the data signals sequentially input to the same data line in the scanning order.
- the driving voltage of the data signal of the pixel unit in different scanning orders is calculated according to the maximum value of the difference between the grayscale values of the screen and the preset formula. difference.
- the driving voltage difference of the data signals of the pixel unit in different scanning orders is calculated according to the average value of the difference between the grayscale values of the screen and the preset formula.
- the driving voltage difference and the preset voltage difference of the data signals according to the pixel units of each of the scanning line groups in different scanning orders a value
- the step of determining the scan order of each of the scan line groups includes:
- the scanning order corresponding to the driving voltage difference is used as the scanning order of the corresponding scan line group.
- the driving voltage difference and the preset voltage difference of the data signals according to the pixel units of each of the scanning line groups in different scanning orders further includes:
- the default scanning order is used as the scanning order of the corresponding scan line.
- the default scanning order is a scan order from top to bottom or a scan order from bottom to top.
- the default scanning order is the scan order corresponding to the minimum driving voltage difference.
- An embodiment of the present invention provides a driving method of a liquid crystal display panel, where the liquid crystal display panel includes:
- the driving method includes:
- each of the scan line groups includes at least three of the scan lines
- the scan lines of the respective scan line groups are scanned for driving using the determined scan order.
- the step of calculating a driving voltage difference of the data signals of the pixel units corresponding to the scan lines corresponding to the scan lines of each of the scan line groups in different scan orders includes :
- the two adjacent data signals refer to two of the data signals sequentially input to the same data line in the scanning order.
- the driving voltage of the data signal of the pixel unit in different scanning orders is calculated according to the maximum value of the difference between the grayscale values of the screen and the preset formula. difference.
- the driving voltage difference of the data signals of the pixel unit in different scanning orders is calculated according to the average value of the difference between the grayscale values of the screen and the preset formula.
- the driving voltage difference and the preset voltage difference of the data signals according to the pixel units of each of the scanning line groups in different scanning orders a value
- the step of determining the scan order of each of the scan line groups includes:
- the scanning order corresponding to the driving voltage difference is used as the scanning order of the corresponding scan line group.
- the driving voltage difference and the preset voltage difference of the data signals according to the pixel units of each of the scanning line groups in different scanning orders further includes:
- the default scanning order is used as the scanning order of the corresponding scan line.
- the default scanning order is a scan order from top to bottom or a scan order from bottom to top.
- the default scanning order is the scan order corresponding to the minimum driving voltage difference.
- each of the scan line groups includes four of the scan lines.
- the driving method of the liquid crystal display panel of the present invention sets different scanning orders according to the driving voltage difference of the data signal, and can better reduce the power consumption of the liquid crystal display panel; There are technical problems in the power consumption of the liquid crystal display panel driving method.
- FIG. 1 is a schematic structural view of a conventional liquid crystal display panel
- FIG. 2 is a flow chart of a preferred embodiment of a driving method of a liquid crystal display panel of the present invention
- step S103 is a flowchart of step S103 of the driving method of the liquid crystal display panel of the present invention.
- Fig. 5 is a flow chart showing a specific embodiment of a driving method of a liquid crystal display panel of the present invention.
- FIG. 1 is a schematic structural view of a conventional liquid crystal display panel.
- the liquid crystal display panel 10 includes a data line 11, a scan line 12, a driving chip 13, and a pixel unit 14.
- the data line 11 is for transmitting a data signal;
- the scan line 12 is for transmitting a scan signal;
- the driving chip 13 is for generating a data signal and a scan signal;
- the pixel unit 14 is formed by interleaving the data line 11 and the scan line 12, through the data signal and the scan signal. Perform a screen display.
- FIG. 2 is a flow chart of a preferred embodiment of a method for driving a liquid crystal display panel of the present invention.
- the driving method of the liquid crystal display panel includes:
- Step S101 grouping all the scan lines to form a plurality of scan line groups
- Step S102 calculating a driving voltage difference of the data signals of the pixel units corresponding to the scan lines of each scan line group in different scan orders;
- Step S103 determining a scan order of each scan line group according to a driving voltage difference of the data signals of the pixel units of each scan line group in different scan orders, and a preset voltage difference value;
- Step S104 scan-scanning the scan lines of the corresponding scan line group using the determined scan order.
- step S101 all the scanning lines 12 on the liquid crystal display panel 10 are grouped to form a plurality of scanning line groups.
- Each scan line group includes at least three adjacent scan lines 12. Specifically, it is as shown in the scan line group 121 and the scan line group 122 of FIG.
- the scan line group 121 and the scan line group 122 in the drawing include four adjacent scan lines 12. Then it proceeds to step S102.
- step S102 the driving voltage difference of the data signals of the pixel units 14 corresponding to the scanning lines 12 of each scanning line group in different scanning orders is calculated.
- FIG. 3 is a flowchart of step S102 of the driving method of the liquid crystal display panel of the present invention.
- the step S102 includes:
- Step S1021 acquiring the screen grayscale value of the data signal corresponding to all the pixel units 14 of the current frame picture; then proceeding to step S1022;
- Step S1022 calculating a difference between screen grayscale values of two adjacent data signals of the corresponding pixel unit 14 of each scan line group under different scan orders.
- the adjacent two data signals refer to two data signals sequentially input to the same data line 11 in the scanning order. Then it proceeds to step S1023.
- step S1023 the liquid crystal display panel 10 calculates the driving voltage difference of the data signals of the pixel unit 14 in different scanning orders according to the preset formula and the difference between the grayscale values of the screen. Since the power consumption of the driving chip 13 is related to the driving voltage difference of the data signal, in this step, the difference between the grayscale values of the screen is converted into a driving voltage difference using a preset formula, so as to facilitate the calculation of the power consumption of the driving chip 13. .
- a scan line group may include at least three scan lines 12, such that one scan line group should correspond to a difference between at least two picture gray scale values, so the maximum value among the differences of the plurality of picture gray scale values can be converted here using a preset formula.
- the driving voltage difference of the data signal of the pixel unit; the average value of the difference between the plurality of picture gray scale values may also be converted into the driving voltage difference of the data signal of the pixel unit 14 using a preset formula. Then it proceeds to step S103.
- step S103 the liquid crystal display panel 10 determines the scanning order of each scanning line group based on the driving voltage difference of the data signals in the different scanning order of the pixel unit 14 of each scanning line group, and the preset voltage difference. Specifically, please refer to FIG. 4.
- FIG. 4 is a flowchart of step S103 of the driving method of the liquid crystal display panel of the present invention.
- the step S103 includes:
- step S1031 the driving voltage difference acquired in step S102 is compared with the preset voltage difference.
- step S1032 it is determined whether the driving voltage difference is greater than a preset voltage difference. If the driving voltage difference is less than or equal to the preset voltage difference, the process goes to step S1033; if the driving voltage difference is greater than the preset voltage difference, then the process goes to step S1034.
- step S1033 since the driving voltage difference is less than or equal to the preset voltage difference, the power consumed by the driving chip 13 in the scanning order corresponding to the driving voltage difference is less than or equal to the predetermined power. Therefore, the scanning order corresponding to the driving voltage difference is determined as the corresponding The scan order of the scan line group.
- Step S1034 since the driving voltage difference is greater than the preset voltage difference, the power consumed by the driving chip 13 in any scanning order is greater than the predetermined power, so the default scanning order is determined as the scanning order of the corresponding scanning line group;
- the default scan order here may be a normal scan sequence from top to bottom or bottom to top or a scan order corresponding to the smallest drive voltage difference for the user to operate or to minimize the power consumption of the driver chip 13. Then it proceeds to step S104.
- step S104 the liquid crystal display panel 10 scan-scans the scan lines 12 of the corresponding scan line groups using the scan order determined in step S103.
- different scanning orders are set according to the driving voltage difference of the data signals, and the power consumption of the liquid crystal display panel can be preferably reduced.
- FIG. 5 is a flowchart of a specific embodiment of a driving method of the liquid crystal display panel of the present invention. This specific embodiment includes:
- Step S501 selecting a scan line group, and determining that the scan line group has n scan orders, and n is a positive integer.
- Step S502 calculating a driving voltage difference of the data signals of the pixel units corresponding to the scan line group by using the i-th scan order, and the initial value of i is 1.
- step S503 it is determined whether the driving voltage difference is greater than a preset voltage difference. If yes, the process goes to step S504. If not, the process goes to step S506.
- step S504 it is determined whether the value of i is equal to 24, if equal to 24, then go to step S505; if less than 24, go to step S502, and i+1.
- step S505 the default scanning order is used as the scanning order of the selected scanning line group.
- step S506 the i-th scan order is used as the scan order of the selected scan line group.
- step S507 i is reset, and the process returns to step S501 until all scanning line groups determine the scanning order.
- the driving method of the liquid crystal display panel of the present invention sets different scanning orders according to the driving voltage difference of the data signal, can better reduce the power consumption of the liquid crystal display panel, and solves the problem that the power consumption of the driving method of the existing liquid crystal display panel is large. Technical problem.
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Abstract
一种液晶显示面板(10)的驱动方法,包括对所有的扫描线(12)进行分组,形成多个扫描线组(121、122)(S101);计算每个扫描线组(121、122)的扫描线(12)对应的像素单元(14)在不同扫描顺序下的数据信号的驱动电压差(S102);根据该驱动电压差以及预设电压差值,确定每个扫描线组(121、122)的扫描顺序(S103);使用确定的扫描顺序对相应的扫描线组(121、122)的扫描线(12)进行扫描驱动(S104)。
Description
本发明涉及液晶显示领域,特别是涉及一种液晶显示面板的驱动方法。
信息时代的今天,液晶显示装置已经成为了传递信息的一个重要媒介。随着液晶显示面板的尺寸越来越大,液晶显示面板的显示功耗已成为液晶显示装置功耗的主要来源,因此降低液晶显示面板显示功耗的设计越来越重要。
现有的液晶显示面板一般包括数据线、扫描线、驱动芯片以及像素单元,数据线用于给相应的像素单元传输数据信号,扫描线用于给相应的像素单元传输扫描信号,驱动芯片用于生成数据信号以及扫描信号对相应的像素单元进行驱动。
现有的液晶显示面板的驱动方法一般是通过数据线以及扫描线逐行对像素单元进行驱动。具体为:先通过扫描线向A1行的像素单元输入高电平信号,然后通过数据线向A1行的像素单元输入数据信号。随后通过扫描线向A2行(A1行的下一行)的像素单元输入高电平信号,然后通过数据线向A2行的像素单元输入数据信号。如A1行的像素单元对应的数据信号的电压与A2行的像素单元对应的数据信号的电压差异很大,就会导致驱动芯片的消耗功率的增大。
故,有必要提供一种液晶显示面板的驱动方法,以解决现有技术所存在的问题。
本发明的目的在于提供一种功耗较小的液晶显示面板的驱动方法;以解决现有的液晶显示面板的驱动方法的功耗较大的技术问题。
本发明的实施例提供一种液晶显示面板的驱动方法,所述液晶显示面板包括:
数据线,用于传输数据信号;
扫描线,用于传输扫描信号;
驱动芯片,用于生成所述数据信号以及所述扫描信号;以及
像素单元,由所述数据线和所述扫描线交错构成,通过所述数据信号以及所述扫描信号进行画面显示;其中所述驱动方法包括:
对所有的所述扫描线进行分组,形成多个扫描线组,其中每个所述扫描线组包括四条所述扫描线;
计算每个所述扫描线组的所述扫描线对应的所述像素单元在不同扫描顺序下的数据信号的驱动电压差;
根据每个所述扫描线组的所述像素单元在不同的所述扫描顺序下的数据信号的驱动电压差、以及预设电压差值,确定每个所述扫描线组的所述扫描顺序;以及
使用确定的所述扫描顺序对相应的所述扫描线组的所述扫描线进行扫描驱动;
其中所述计算每个所述扫描线组的所述扫描线对应的所述像素单元在不同扫描顺序下的数据信号的驱动电压差的步骤包括:
获取当前帧画面的所有的所述像素单元的对应的所述数据信号的画面灰阶值;
计算在不同扫描顺序下,每个所述扫描线组的所述像素单元的相邻的两个所述数据信号的画面灰阶值之差;以及
根据预设公式以及所述画面灰阶值之差,计算所述像素单元在不同扫描顺序下的数据信号的驱动电压差。
在本发明所述的液晶显示面板的驱动方法中,所述相邻的两个所述数据信号是指按所述扫描顺序,依次输入至同一所述数据线的两个所述数据信号。
在本发明所述的液晶显示面板的驱动方法中,根据所述画面灰阶值之差中的最大值以及所述预设公式,计算所述像素单元在不同扫描顺序下的数据信号的驱动电压差。
在本发明所述的液晶显示面板的驱动方法中,根据所述画面灰阶值之差的平均值以及所述预设公式,计算所述像素单元在不同扫描顺序下的数据信号的驱动电压差。
在本发明所述的液晶显示面板的驱动方法中,所述根据每个所述扫描线组的所述像素单元在不同的所述扫描顺序下的数据信号的驱动电压差、以及预设电压差值,确定每个所述扫描线组的所述扫描顺序的步骤包括:
将所述驱动电压差与所述预设电压差值对比;
如所述驱动电压差小于等于所述预设电压差值,则使用所述驱动电压差对应的所述扫描顺序作为对应的所述扫描线组的所述扫描顺序。
在本发明所述的液晶显示面板的驱动方法中,所述根据每个所述扫描线组的所述像素单元在不同的所述扫描顺序下的数据信号的驱动电压差以及预设电压差值,确定每个所述扫描线组的所述扫描顺序的步骤还包括:
如所述驱动电压差均大于所述预设电压差值,则使用默认的所述扫描顺序作为对应的所述扫描线的所述扫描顺序。
在本发明所述的液晶显示面板的驱动方法中,所述默认的所述扫描顺序为从上到下的扫描顺序或从下到上的扫描顺序。
在本发明所述的液晶显示面板的驱动方法中,所述默认的所述扫描顺序为最小的所述驱动电压差对应的所述扫描顺序。
本发明的实施例提供一种液晶显示面板的驱动方法,所述液晶显示面板包括:
数据线,用于传输数据信号;
扫描线,用于传输扫描信号;
驱动芯片,用于生成所述数据信号以及所述扫描信号;以及
像素单元,由所述数据线和所述扫描线交错构成,通过所述数据信号以及所述扫描信号进行画面显示;其特征在于,所述驱动方法包括:
对所有的所述扫描线进行分组,形成多个扫描线组,其中每个所述扫描线组包括至少三条所述扫描线;
计算每个所述扫描线组的所述扫描线对应的所述像素单元在不同扫描顺序下的数据信号的驱动电压差;
根据每个所述扫描线组的所述像素单元在不同的所述扫描顺序下的数据信号的驱动电压差、以及预设电压差值,确定每个所述扫描线组的所述扫描顺序;以及
使用确定的所述扫描顺序对相应的所述扫描线组的所述扫描线进行扫描驱动。
在本发明所述的液晶显示面板的驱动方法中,所述计算每个所述扫描线组的所述扫描线对应的所述像素单元在不同扫描顺序下的数据信号的驱动电压差的步骤包括:
获取当前帧画面的所有的所述像素单元的对应的所述数据信号的画面灰阶值;
计算在不同扫描顺序下,每个所述扫描线组的所述像素单元的相邻的两个所述数据信号的画面灰阶值之差;以及
根据预设公式以及所述画面灰阶值之差,计算所述像素单元在不同扫描顺序下的数据信号的驱动电压差。
在本发明所述的液晶显示面板的驱动方法中,所述相邻的两个所述数据信号是指按所述扫描顺序,依次输入至同一所述数据线的两个所述数据信号。
在本发明所述的液晶显示面板的驱动方法中,根据所述画面灰阶值之差中的最大值以及所述预设公式,计算所述像素单元在不同扫描顺序下的数据信号的驱动电压差。
在本发明所述的液晶显示面板的驱动方法中,根据所述画面灰阶值之差的平均值以及所述预设公式,计算所述像素单元在不同扫描顺序下的数据信号的驱动电压差。
在本发明所述的液晶显示面板的驱动方法中,所述根据每个所述扫描线组的所述像素单元在不同的所述扫描顺序下的数据信号的驱动电压差、以及预设电压差值,确定每个所述扫描线组的所述扫描顺序的步骤包括:
将所述驱动电压差与所述预设电压差值对比;
如所述驱动电压差小于等于所述预设电压差值,则使用所述驱动电压差对应的所述扫描顺序作为对应的所述扫描线组的所述扫描顺序。
在本发明所述的液晶显示面板的驱动方法中,所述根据每个所述扫描线组的所述像素单元在不同的所述扫描顺序下的数据信号的驱动电压差以及预设电压差值,确定每个所述扫描线组的所述扫描顺序的步骤还包括:
如所述驱动电压差均大于所述预设电压差值,则使用默认的所述扫描顺序作为对应的所述扫描线的所述扫描顺序。
在本发明所述的液晶显示面板的驱动方法中,所述默认的所述扫描顺序为从上到下的扫描顺序或从下到上的扫描顺序。
在本发明所述的液晶显示面板的驱动方法中,所述默认的所述扫描顺序为最小的所述驱动电压差对应的所述扫描顺序。
在本发明所述的液晶显示面板的驱动方法中,每个所述扫描线组包括四条所述扫描线。
相较于现有的液晶显示面板的驱动方法,本发明的液晶显示面板的驱动方法根据数据信号的驱动电压差设置不同的扫描顺序,能够较好的降低液晶显示面板的功耗;解决了现有的液晶显示面板的驱动方法的功耗较大的技术问题。
图1为现有的液晶显示面板的结构示意图;
图2为本发明的液晶显示面板的驱动方法的优选实施例的流程图;
图3为本发明的液晶显示面板的驱动方法的步骤S102的流程图;
图4为本发明的液晶显示面板的驱动方法的步骤S103的流程图;
图5为本发明的液晶显示面板的驱动方法的具体实施例的流程图。
以下各实施例的说明是参考附加的图式,用以例示本发明可用以实施的特定实施例。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。
在图中,结构相似的单元是以相同标号表示。
请参照图1,图1为现有的液晶显示面板的结构示意图。该液晶显示面板10包括数据线11、扫描线12、驱动芯片13以及像素单元14。数据线11用于传输数据信号;扫描线12用于传输扫描信号;驱动芯片13用于生成数据信号以及扫描信号;像素单元14由数据线11和扫描线12交错构成,通过数据信号以及扫描信号进行画面显示。
本发明的液晶显示面板的驱动方法可应用在上述的液晶显示面板10上。请参照图2,图2为本发明的液晶显示面板的驱动方法的优选实施例的流程图。该液晶显示面板的驱动方法包括:
步骤S101,对所有的扫描线进行分组,形成多个扫描线组;
步骤S102,计算每个扫描线组的扫描线对应的像素单元在不同扫描顺序下的数据信号的驱动电压差;
步骤S103,根据每个扫描线组的像素单元在不同的扫描顺序下的数据信号的驱动电压差、以及预设电压差值,确定每个扫描线组的扫描顺序;
步骤S104,使用确定的扫描顺序对相应的扫描线组的扫描线进行扫描驱动。
下面详细说明本优选实施例的液晶显示面板的驱动方法的各步骤的具体流程。
在步骤S101中,对液晶显示面板10上的所有的扫描线12进行分组,形成多个扫描线组。每个扫描线组包括至少三条相邻的扫描线12。具体如图1的扫描线组121和扫描线组122所示。图中的扫描线组121和扫描线组122包括四条相邻的扫描线12。随后转到步骤S102。
在步骤S102中,计算每个扫描线组的扫描线12对应的像素单元14在不同扫描顺序下的数据信号的驱动电压差。具体请参照图3,图3为本发明的液晶显示面板的驱动方法的步骤S102的流程图。该步骤S102包括:
步骤S1021,获取当前帧画面的所有的像素单元14对应的数据信号的画面灰阶值;随后转到步骤S1022;
步骤S1022,计算在不同扫描顺序下,每个扫描线组的对应像素单元14的相邻的两个数据信号的画面灰阶值之差。这里的相邻的两个数据信号是指按扫描顺序,依次输入至同一数据线11的两个数据信号。随后转到步骤S1023。
步骤S1023,液晶显示面板10根据预设公式以及画面灰阶值之差,计算像素单元14在不同扫描顺序下的数据信号的驱动电压差。由于驱动芯片13的功耗是与数据信号的驱动电压差相关的,因此在本步骤中会使用预设公式将画面灰阶值之差转换为驱动电压差,以便于驱动芯片13功耗的计算。一个扫描线组可包括至少三条扫描线12,这样一个扫描线组应对应至少两个画面灰阶值之差,因此这里可使用预设公式将多个画面灰阶值之差中的最大值转换为像素单元的数据信号的驱动电压差;还可使用预设公式将多个画面灰阶值之差的平均值转换为像素单元14的数据信号的驱动电压差。随后转到步骤S103。
在步骤S103中,液晶显示面板10根据每个扫描线组的像素单元14在不同的扫描顺序下的数据信号的驱动电压差、以及预设电压差值,确定每个扫描线组的扫描顺序。具体请参照图4,图4为本发明的液晶显示面板的驱动方法的步骤S103的流程图。该步骤S103包括:
步骤S1031,将步骤S102获取的驱动电压差与预设电压差值对比。
步骤S1032,判断驱动电压差是否大于预设电压差值,如驱动电压差小于等于预设电压差值,则转到步骤S1033;如驱动电压差大于预设电压差值,则转到步骤S1034。
步骤S1033,由于驱动电压差小于等于预设电压差值,则说明驱动芯片13以驱动电压差对应的扫描顺序进行扫描消耗的功率小于等于预定的功率,因此确定驱动电压差对应的扫描顺序作为对应的扫描线组的扫描顺序。
步骤S1034,由于驱动电压差大于预设电压差值,则说明驱动芯片13以任何扫描顺序进行扫描消耗的功率均大于预定的功率,因此确定默认的扫描顺序作为对应的扫描线组的扫描顺序;这里默认的扫描顺序可为正常的从上到下或从下到上的扫描顺序或最小的驱动电压差对应的扫描顺序,以便用户进行操作或尽量降低驱动芯片13的功耗。随后转到步骤S104。
在步骤S104中,液晶显示面板10使用步骤S103确定的扫描顺序对相应的扫描线组的扫描线12进行扫描驱动。
这样即完成了本优选实施例的液晶显示面板的驱动方法的驱动过程。
本发明的液晶显示面板的驱动方法根据数据信号的驱动电压差设置不同的扫描顺序,能够较好的降低液晶显示面板的功耗。
下面通过一具体实施例说明本发明的液晶显示面板的驱动方法的具体工作原理,请参照图5,图5为本发明的液晶显示面板的驱动方法的具体实施例的流程图。该具体实施例包括:
步骤S501,选定一扫描线组,并确定该扫描线组具有n种扫描顺序,n为正整数。该扫描线组具有四条扫描线,则n=4!=24种。
步骤S502,使用第i种扫描顺序进行计算该扫描线组对应的像素单元的数据信号的驱动电压差,i的初始值为1。
步骤S503,判断该驱动电压差是否大于预设电压差值,如大于则转到步骤S504,如不大于则转到步骤S506。
步骤S504,判断i值是否等于24,如等于24,则转到步骤S505;如小于24则转到步骤S502,并且i+1。
步骤S505,使用默认的扫描顺序作为选定的扫描线组的扫描顺序。
步骤S506,使用第i种扫描顺序作为选定的扫描线组的扫描顺序。
步骤S507,对i进行复位,返回步骤S501直至所有的扫描线组均确定了扫描顺序。
这样即完成了本具体实施例的液晶显示面板的驱动方法的驱动过程。
本发明的液晶显示面板的驱动方法根据数据信号的驱动电压差设置不同的扫描顺序,能够较好的降低液晶显示面板的功耗;解决了现有的液晶显示面板的驱动方法的功耗较大的技术问题。
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 (18)
- 一种液晶显示面板的驱动方法,所述液晶显示面板包括:数据线,用于传输数据信号;扫描线,用于传输扫描信号;驱动芯片,用于生成所述数据信号以及所述扫描信号;以及像素单元,由所述数据线和所述扫描线交错构成,通过所述数据信号以及所述扫描信号进行画面显示;其中所述驱动方法包括:对所有的所述扫描线进行分组,形成多个扫描线组,其中每个所述扫描线组包括四条所述扫描线;计算每个所述扫描线组的所述扫描线对应的所述像素单元在不同扫描顺序下的数据信号的驱动电压差;根据每个所述扫描线组的所述像素单元在不同的所述扫描顺序下的数据信号的驱动电压差、以及预设电压差值,确定每个所述扫描线组的所述扫描顺序;以及使用确定的所述扫描顺序对相应的所述扫描线组的所述扫描线进行扫描驱动;其中所述计算每个所述扫描线组的所述扫描线对应的所述像素单元在不同扫描顺序下的数据信号的驱动电压差的步骤包括:获取当前帧画面的所有的所述像素单元的对应的所述数据信号的画面灰阶值;计算在不同扫描顺序下,每个所述扫描线组的所述像素单元的相邻的两个所述数据信号的画面灰阶值之差;以及根据预设公式以及所述画面灰阶值之差,计算所述像素单元在不同扫描顺序下的数据信号的驱动电压差。
- 根据权利要求1所述的液晶显示面板的驱动方法,其中所述相邻的两个所述数据信号是指按所述扫描顺序,依次输入至同一所述数据线的两个所述数据信号。
- 根据权利要求1所述的液晶显示面板的驱动方法,其中根据所述画面灰阶值之差中的最大值以及所述预设公式,计算所述像素单元在不同扫描顺序下的数据信号的驱动电压差。
- 根据权利要求1所述的液晶显示面板的驱动方法,其中根据所述画面灰阶值之差的平均值以及所述预设公式,计算所述像素单元在不同扫描顺序下的数据信号的驱动电压差。
- 根据权利要求1所述的液晶显示面板的驱动方法,其中所述根据每个所述扫描线组的所述像素单元在不同的所述扫描顺序下的数据信号的驱动电压差、以及预设电压差值,确定每个所述扫描线组的所述扫描顺序的步骤包括:将所述驱动电压差与所述预设电压差值对比;如所述驱动电压差小于等于所述预设电压差值,则使用所述驱动电压差对应的所述扫描顺序作为对应的所述扫描线组的所述扫描顺序。
- 根据权利要求5所述的液晶显示面板的驱动方法,其中所述根据每个所述扫描线组的所述像素单元在不同的所述扫描顺序下的数据信号的驱动电压差以及预设电压差值,确定每个所述扫描线组的所述扫描顺序的步骤还包括:如所述驱动电压差均大于所述预设电压差值,则使用默认的所述扫描顺序作为对应的所述扫描线的所述扫描顺序。
- 根据权利要求6所述的液晶显示面板的驱动方法,其中所述默认的所述扫描顺序为从上到下的扫描顺序或从下到上的扫描顺序。
- 根据权利要求6所述的液晶显示面板的驱动方法,其中所述默认的所述扫描顺序为最小的所述驱动电压差对应的所述扫描顺序。
- 一种液晶显示面板的驱动方法,所述液晶显示面板包括:数据线,用于传输数据信号;扫描线,用于传输扫描信号;驱动芯片,用于生成所述数据信号以及所述扫描信号;以及像素单元,由所述数据线和所述扫描线交错构成,通过所述数据信号以及所述扫描信号进行画面显示;其中所述驱动方法包括:对所有的所述扫描线进行分组,形成多个扫描线组,其中每个所述扫描线组包括至少三条所述扫描线;计算每个所述扫描线组的所述扫描线对应的所述像素单元在不同扫描顺序下的数据信号的驱动电压差;根据每个所述扫描线组的所述像素单元在不同的所述扫描顺序下的数据信号的驱动电压差、以及预设电压差值,确定每个所述扫描线组的所述扫描顺序;以及使用确定的所述扫描顺序对相应的所述扫描线组的所述扫描线进行扫描驱动。
- 根据权利要求9所述的液晶显示面板的驱动方法,其中所述计算每个所述扫描线组的所述扫描线对应的所述像素单元在不同扫描顺序下的数据信号的驱动电压差的步骤包括:获取当前帧画面的所有的所述像素单元的对应的所述数据信号的画面灰阶值;计算在不同扫描顺序下,每个所述扫描线组的所述像素单元的相邻的两个所述数据信号的画面灰阶值之差;以及根据预设公式以及所述画面灰阶值之差,计算所述像素单元在不同扫描顺序下的数据信号的驱动电压差。
- 根据权利要求10所述的液晶显示面板的驱动方法,其中所述相邻的两个所述数据信号是指按所述扫描顺序,依次输入至同一所述数据线的两个所述数据信号。
- 根据权利要求10所述的液晶显示面板的驱动方法,其中根据所述画面灰阶值之差中的最大值以及所述预设公式,计算所述像素单元在不同扫描顺序下的数据信号的驱动电压差。
- 根据权利要求10所述的液晶显示面板的驱动方法,其中根据所述画面灰阶值之差的平均值以及所述预设公式,计算所述像素单元在不同扫描顺序下的数据信号的驱动电压差。
- 根据权利要求10所述的液晶显示面板的驱动方法,其中所述根据每个所述扫描线组的所述像素单元在不同的所述扫描顺序下的数据信号的驱动电压差、以及预设电压差值,确定每个所述扫描线组的所述扫描顺序的步骤包括:将所述驱动电压差与所述预设电压差值对比;如所述驱动电压差小于等于所述预设电压差值,则使用所述驱动电压差对应的所述扫描顺序作为对应的所述扫描线组的所述扫描顺序。
- 根据权利要求14所述的液晶显示面板的驱动方法,其中所述根据每个所述扫描线组的所述像素单元在不同的所述扫描顺序下的数据信号的驱动电压差以及预设电压差值,确定每个所述扫描线组的所述扫描顺序的步骤还包括:如所述驱动电压差均大于所述预设电压差值,则使用默认的所述扫描顺序作为对应的所述扫描线的所述扫描顺序。
- 根据权利要求15所述的液晶显示面板的驱动方法,其中所述默认的所述扫描顺序为从上到下的扫描顺序或从下到上的扫描顺序。
- 根据权利要求15所述的液晶显示面板的驱动方法,其中所述默认的所述扫描顺序为最小的所述驱动电压差对应的所述扫描顺序。
- 根据权利要求9所述的液晶显示面板的驱动方法,其中每个所述扫描线组包括四条所述扫描线。
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| CN104966504B (zh) * | 2015-07-31 | 2017-09-01 | 京东方科技集团股份有限公司 | 栅线驱动方法和装置 |
| CN106228943B (zh) * | 2016-10-11 | 2018-11-09 | 深圳市华星光电技术有限公司 | 图像灰阶调整方法及调整装置 |
| TWI670615B (zh) * | 2017-08-24 | 2019-09-01 | 財團法人工業技術研究院 | 功耗估算方法與功耗估算裝置 |
| CN110503909A (zh) * | 2018-05-18 | 2019-11-26 | 奇景光电股份有限公司 | 时序控制器与显示面板驱动器的温度管理方法 |
| US11538414B2 (en) | 2019-03-19 | 2022-12-27 | Sitronix Technology Corp. | Driving circuit of display panel |
| CN110517623B (zh) * | 2019-09-24 | 2023-05-12 | 高创(苏州)电子有限公司 | 显示器的驱动方法和装置、显示设备以及存储介质 |
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| US9830870B2 (en) | 2017-11-28 |
| CN104849888A (zh) | 2015-08-19 |
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