WO2020155215A1 - 显示面板、驱动方法和显示装置 - Google Patents

显示面板、驱动方法和显示装置 Download PDF

Info

Publication number
WO2020155215A1
WO2020155215A1 PCT/CN2019/075511 CN2019075511W WO2020155215A1 WO 2020155215 A1 WO2020155215 A1 WO 2020155215A1 CN 2019075511 W CN2019075511 W CN 2019075511W WO 2020155215 A1 WO2020155215 A1 WO 2020155215A1
Authority
WO
WIPO (PCT)
Prior art keywords
column
pixels
row
scan line
precharging
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2019/075511
Other languages
English (en)
French (fr)
Inventor
常红燕
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HKC Co Ltd
Original Assignee
HKC Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by HKC Co Ltd filed Critical HKC Co Ltd
Priority to US16/349,279 priority Critical patent/US11335287B2/en
Publication of WO2020155215A1 publication Critical patent/WO2020155215A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—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 using controlled light sources
    • G09G3/30—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 using controlled light sources using electroluminescent panels
    • G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3225—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] 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
    • G09G3/3607—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 for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
    • 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
    • G09G3/3614—Control of polarity reversal in general
    • 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
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/131—Interconnections, e.g. wiring lines or terminals
    • 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
    • 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
    • G09G2310/0243—Details of the generation of driving signals
    • G09G2310/0248—Precharge or discharge of column electrodes before or after applying exact column voltages
    • 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
    • G09G2310/0243—Details of the generation of driving signals
    • G09G2310/0251—Precharge or discharge of pixel before applying new pixel voltage
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0233—Improving the luminance or brightness uniformity across the screen

Definitions

  • This application relates to the field of display technology, and in particular to a display panel, a driving method and a display device.
  • Flat panel displays include Thin Film Transistor-Liquid Crystal Display (TFT-LCD) and Organic Light-Emitting Diode (OLED) displays.
  • TFT-LCD Thin Film Transistor-Liquid Crystal Display
  • OLED Organic Light-Emitting Diode
  • the thin film transistor liquid crystal display refracts the light from the backlight module to produce a picture by controlling the rotation direction of the liquid crystal molecules, and has many advantages such as thin body, power saving, and no radiation.
  • the organic light emitting diode display is made of organic electroluminescent diodes, and has many advantages such as self-luminescence, short response time, high definition and contrast, flexible display and large-area full-color display.
  • the TFT-LCD technology includes a dual-gate design. When matched with a driving mode of one scan line and two data lines, the display panel will have vertical bright and dark lines.
  • the purpose of this application is to provide a display panel, a driving method and a display device to solve the problem of vertical bright and dark lines.
  • a display panel including:
  • a substrate a plurality of data lines arranged on the substrate; a plurality of scan lines arranged on the substrate; a plurality of pixels, the plurality of pixels include sub-pixels of different colors respectively arranged along the scan line direction; an output gate Start a signal to the scan line to turn on the gate driving chip of the pixel;
  • Each row of the pixels includes a plurality of pixel groups, and each of the pixel groups includes adjacent pixels in a first column and pixels in a second column.
  • the pixels in the first column and the pixels in the second column are in the same Data line connection; and the first column of pixels and the second column of pixels are respectively connected to the 2n-1th row scan line and the 2nth row scan line;
  • the polarities of the data driving signals used by the pixels in the first column and the pixels in the second column of the same group of the pixel group are opposite; and, the second column of pixels corresponding to the 2nth row of scan lines and the 2n+1th row of scan lines The polarities of the data driving signals of the corresponding pixels in the first column are the same;
  • the pixels in the second column corresponding to the scan line of the 2n row are charged; and within the on time period when the scan line of the 2n row is turned on, the scan line of the 2n+4 row is turned on to give the The pixels in the second column corresponding to the 2n+4 scan lines are precharged; the n is a natural number greater than or equal to 1.
  • the application also discloses a driving method of the display panel, including the steps:
  • the 2n-1th row scan line When the 2n-1th row scan line receives the gate start signal, the first column of pixels corresponding to the 2n-1th row scan line and the mth column data line is charged with the data driving signal of the first polarity; on the 2nth row scan line When the gate start signal is received, the second column of pixels corresponding to the 2nth row scan line and the mth column data line is charged with a data drive signal of the second polarity, and the 2n+4th row scan line corresponds to the second column of pixels for pre-processing.
  • Charge; m and n are natural numbers greater than or equal to 1.
  • the first column of pixels corresponding to the 2n-1th row scan line and the mth column data line is charged with the data driving signal of the first polarity.
  • the steps also include:
  • the scan line of the 2n+3 row is turned on, and the corresponding pixels of the first column are precharged; wherein, the pixels of the first column
  • the precharge time of is less than or equal to the precharge time of the second column of pixels.
  • the precharging time for precharging the pixels in the second column of each row is less than the opening time of a row of scan lines.
  • the pixels in the second column of each row are precharged, and the precharge time is equal to the turn-on time of a row of scan lines.
  • precharging the pixels in the second column of each row precharging the pixels in the first column of each row; and precharging the pixels in the second column of each row, It is greater than the time for precharging the pixels in the first column of each row.
  • the ratio of the pre-charging time to the opening time of a row of scan lines is equal to a preset ratio value.
  • the application also discloses a display device including the display panel as described above.
  • the difference in charging voltage can even eliminate the difference, and finally make the first column of pixels and the second column of pixels have the same charging amount, so that the brightness difference between the first column of pixels and the second column of pixels is reduced, and the problem of vertical bright and dark lines is improved.
  • FIG. 1 is a schematic diagram of a pixel driving structure of a display panel according to an embodiment of the present application (1);
  • FIG. 2 is a schematic diagram of a digital signal waveform diagram corresponding to a pixel driving structure of a display panel according to an embodiment of the present application
  • FIG. 3 is a schematic diagram of one data line and two scan lines of a display panel according to an embodiment of the present application
  • FIG. 4 is a schematic diagram of a pixel driving structure of a display panel according to an embodiment of the present application (2);
  • FIG. 5 is a schematic diagram (1) of a flowchart of a driving method of a display panel according to an embodiment of the present application
  • FIG. 6 is a schematic diagram of a corresponding waveform diagram of only precharging pixels in the second column in a driving method of a display panel according to an embodiment of the present application;
  • FIG. 7 is a schematic diagram (2) of a flowchart of a driving method of a display panel according to an embodiment of the present application.
  • FIG. 8 is a schematic diagram of a waveform diagram corresponding to the precharge time of the pixels in the first column being shorter than the precharge time of the pixels in the second column in a driving method of a display panel according to an embodiment of the present application;
  • FIG. 9 is a schematic diagram of a waveform diagram in which the pixels in the first column and the pixels in the second column are both precharged in a driving method of a display panel according to an embodiment of the present application;
  • FIG. 10 is a schematic diagram of a display device according to an embodiment of the present application.
  • connection should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected or integrally connected; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two components.
  • connection should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected or integrally connected; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two components.
  • TFT-LCD technology has three designs: Normal, Dual-gate, and Tri-gate. Take HD (1366 X 768) resolution as an example; the common design has 4,098 data lines and 768 scan lines; the dual-gate design has 2,049 data lines and 1536 scan lines. Compared with the common design, The data line is reduced by half to 1/2 of the original, and the scan line is increased by two times.
  • the Tri-gate design has 1366 data lines and 2304 scan lines. Compared with ordinary designs, its data lines The reduction is 1/3, and the gate line is increased to three times.
  • Dual-gate design there are two driving methods: one scan line and two data lines and two data lines and one scan line.
  • the dual-gate design matches the two driving methods. Either way, due to the limitation of the factory's process capability in the RC design, the RC may be larger in the actual process, resulting in insufficient charging rate, and vertical bright and dark lines are easy to see in low grayscale screens.
  • D1, D2, D3, D4, D5, and D6 are all data lines
  • G1 and G2 are scan lines
  • the scan direction is as shown in the figure.
  • one data line corresponds to two rows of scan lines
  • one data line controls the pixels in the left and right columns.
  • D1 Take D1 as an example: when the voltage of the first row of G1 scan line is turned on, the D1 data signal comes in, and D1 is given first The pixel signal with the positive polarity on the left side of the data line, after a scan line on time, the next line of scan line G2 is turned on, and D1 gives the pixel signal with the negative polarity on the right side of the data line.
  • the cross voltage is 14V.
  • the third row scan line is opened, and D1 first gives the negative pixel signal on the left side of the data line.
  • the cross voltage from negative to negative is 0V, reference
  • all the pixels on the left of the data line have the largest cross voltage to the pixels on the right.
  • bright and dark lines are very easy to produce, that is, pixels with large cross voltage are dark, and pixels without cross voltage are bright. Therefore, the pixels on the left side of the data line are bright and the pixels on the right side are dark, forming bright and dark lines.
  • an embodiment of the present application discloses a display panel, including:
  • Each row of the pixels includes a plurality of pixel groups, and each of the pixel groups includes adjacent pixels 121 in a first column and pixels 122 in a second column.
  • the pixels 121 in the first column and the pixels in the second column are adjacent to each other.
  • the pixels 122 are connected to the same data line; and the first column of pixels 121 and the second column of pixels 122 are respectively connected to the 2n-1th scan line and the 2nth scan line;
  • the polarities of the data driving signals used by the first column of pixels 121 and the second column of pixels 122 of the same group of pixels are opposite; and, the second column of pixels 122 corresponding to the 2nth row of scan lines and the 2n+1th column of pixels 122 The polarities of the data driving signals of the pixels 121 of the first column corresponding to the row scan lines are the same;
  • the pixel 122 of the second column corresponding to the scan line of the 2n row is charged; and during the on time period when the scan line of the 2n row is turned on, the scan line of the 2n+4 row is turned on, The pixels 122 in the second column corresponding to the scan lines of the 2n+4th row are precharged; the n is a natural number greater than or equal to 1.
  • n is limited to matching the total number of scan lines.
  • each group of the first column of pixels 121 and the second column of pixels 122 share a data line
  • the first column of pixels 121 and the second column of pixels 122 share a data line.
  • the column pixels 122 are connected to different scan lines.
  • the first column of pixels 121 and the second column of pixels 122 of the current pixel group are opposite, the first column of pixels 121 and the second column of pixels 122 are connected to the same data line, and the second column of pixels 122 of the current group is connected to the same data line.
  • the polarities of the pixels 121 in the first column of the next group are the same, and when the polarities of the pixels 121 in the second column of the current group are switched to the pixels 121 in the first column of the next group, the polarities are not reversed;
  • the scanning time of the second column of pixels 122 starts, because the polarity of the data voltage in the same data line is switched, the voltage value of the data line needs a certain time to reach the predetermined voltage.
  • the first The charging efficiency of the two columns of pixels 122 is lower, so that the final charging voltage of the second column of pixels 122 is lower than that of the first column of pixels 121, and the first column of pixels 121 will be brighter and the second column of pixels 122 will be darker. Bright and dark line problem.
  • Gate(2n) is the 2nth scan line
  • Gate(2n+4) is the 2n+4th scan line.
  • the dark column must be precharged
  • the precharge time can be less than or equal to the opening time of a row of scan lines
  • the bright column can be precharged or not, specifically including but not limited to the following situations:
  • the following driving method corresponds to the driving architecture of the above-mentioned display panel.
  • This application also discloses a driving method of the display panel 101. Referring to FIG. 5, the method includes the following steps:
  • the 2n-1th row scan line and the mth column data line corresponding to the 2nth row scan line are data lines in the same column.
  • the 2n-1th row scan line receives the gate start signal, it is the first column corresponding to the 2n-1th row scan line and the mth column data line
  • the pixels 121 are charged with the data driving signal of the first polarity; the brightness of the pixels 121 in the first column is relatively bright, and they are close to the preset charging voltage or have reached the preset charging voltage; while the pixels 122 in the second column are
  • the pixels 121 in the first column corresponding to a row of scan lines have opposite polarities, causing cross-voltage problems and insufficient charging efficiency at the initial stage of the scan lines, which causes the pixels 122 in the second column to be dark and vertical bright and dark lines.
  • the upper limit of the value of n matches the total number of rows of the scan line; the upper limit of the value of m matches the total number of columns of the data line.
  • the pre-charge Charging increases the charging time of the pixels and avoids the impact of cross-voltage problems.
  • the charging time of the second column of pixels 122 is greatly increased, so that the final charging voltage of the second column of pixels 122 is increased.
  • the pixels 122 in the second column become brighter, and even reach the preset charging voltage; in this way, the final charging voltages of the pixels in the first row and the second row are close to or reach the preset charging voltage, and finally the pixels in the first column 121
  • the charging amount is equivalent to that of the second column of pixels 122, so that the brightness difference between the first column of pixels 121 and the second column of pixels 122 is reduced, and the problem of vertical bright and dark lines is improved.
  • a driving method of the display panel 101 includes the steps:
  • S72 Turn on the scan line of the 2n+3th row during the on time period of the scan line of the first row corresponding to the scan line of the 2n-1th row, and precharge the corresponding pixels in the first column;
  • the precharging time of the pixels 121 in the first column is less than or equal to the precharging time of the pixels 122 in the second column.
  • the gate drive chip 110 when the gate drive chip 110 outputs the gate start signal to the 2nth row scan line, the second column of pixels 122 corresponding to each data line on the 2nth row scan line is turned on and charged; at the same time, in the nth row During the opening time period of the scan line, the scan line of the 2n+4th row is turned on, and the corresponding second column of pixels 122 is precharged; thus, because the second column of pixels 122 and the second column of pixels 122 and the second column corresponding to the 2nth scan line are precharged
  • the data driving signals corresponding to the pixels 122 in the second column of 2n+4 rows have the same polarity.
  • Gate(2n-1) is the 2n-1th scan line
  • Gate(2n+3) is the 2n+3th scan line.
  • the first column pixel 121 is precharged so that The first column of pixels 121 reaches the preset charging voltage; in this way, the final charging voltages of the first row of pixels and the second row of pixels are close to or reach the preset charging voltage, and finally the first column of pixels 121 and the second column of pixels 122 Therefore, the difference in brightness between the pixels 121 in the first column and the pixels 122 in the second column is reduced. This improves the display brightness of the overall panel while improving the problem of vertical bright and dark lines.
  • the precharge voltages of the pixels 121 in the first column and the pixels 122 in the second column are both 10V. Without precharging, the charging voltage of the pixels 121 in the first column is 8V. The charging voltage of 122 is 7V. After precharging the first column of pixels 121 and the second column of pixels 122, the final charging voltage of the first column of pixels 121 can reach 10V, and the final charging voltage of the second pixel can also reach 10.
  • the pre-charging time for precharging the second column of pixels 122 in each row is less than the opening time of a row of scan lines.
  • the second column of pixels 122 in each row is precharged, and the precharge time is less than the turn-on time of a row of scan lines, and after precharging, the charging time of the second column of pixels 122 is improved, not only The problem caused by the cross voltage is offset, and the final charging voltage of the second column of pixels 122 is increased; precharging the first column of pixels 121 can compensate the original under-charged pixels, so that the two finally reach The charging voltage is equivalent, the brightness difference is reduced, and the problem of vertical bright and dark lines is improved.
  • the second column of pixels 122 in each row is precharged, and the precharge time is equal to the turn-on time of a row of scan lines.
  • the second column of pixels 122 in each row is precharged, and the precharge time is equal to the opening time of a row of scan lines.
  • the charging time of the second column of pixels 122 has been greatly improved, not only across the pressure band
  • the problem is offset, and after offsetting the influence of the cross voltage, there is still enough time to precharge the corresponding second column of pixels 122, so that the final charging voltage of the second column of pixels 122 increases;
  • the pre-charging of the column of pixels 121 can compensate the original under-charged pixels, so that the two finally reach the same charging voltage and reduce the brightness difference. This not only improves the problem of vertical bright and dark lines, but also improves the overall display panel 101 brightness.
  • the pixels 122 in the second column of each row are precharged, and the precharge time is equal to the turn-on time of a row of scan lines.
  • Both the first column of pixels 121 and the second column of pixels 122 are precharged.
  • the first column of pixels 121 corresponds to a bright column
  • the second column of pixels 122 corresponds to a dark column.
  • the polarities of the data voltages of the pixels 121 and 122 of the first column and the pixels 122 of the second column connected to the same data line are switched across voltage at this time, due to the pre-charge time charging, not only the problem of voltage across is avoided
  • the charging time of the pixels 122 in the second column is greatly improved, so that the final charging voltage of the pixels 122 in the second column increases, and the pixels 122 in the second column become brighter, and even reach the preset charging voltage;
  • the corresponding pixels 121 in the first column are precharged. Since the brightness of the pixels 121 in the first column is brighter, most of them are close to the preset charging voltage or have reached the preset charging voltage, but some are still insufficiently charged.
  • One column of pixels 121 and the second column of pixels 122 have the same charging capacity, so that the difference in brightness between the first column of pixels 121 and the second column of pixels 122 is reduced, which improves the problem of vertical bright and dark lines and helps to increase the display brightness of the overall panel. .
  • pre-charging the pixels 122 in the second column of each row pre-charging the pixels 121 in the first column of each row; and performing the pre-charging of the pixels 122 in each row of the second column
  • the precharging time is longer than the precharging time for the pixels 121 in the first column of each row.
  • the pixels 121 in the first column of each row are pre-charged, and at the same time, the pixels 122 in the second column of each row are pre-charged.
  • the time is longer than the time for precharging the pixels 121 in the first column of each row. In this way, the charging time of the second column of pixels 122 and the first column of pixels 121 has been greatly improved, not only the problems caused by the cross voltage are offset, but also after the impact of the cross voltage is offset, there is still time for charging.
  • the corresponding second column of pixels 122 are precharged, so that the final charging voltages of the second column of pixels 122 and the first column of pixels 121 are increased, which improves the overall brightness of the display panel 101; and the first column of pixels 121 is precharged
  • the time is shorter than that of the second column of pixels 122, because for large-size panels, due to the large number of scanning rows, sometimes even the pixels corresponding to the bright column may be undercharged.
  • the charging voltage corresponding to the bright column distance data signal is relatively low.
  • the dark column is close to the charging voltage corresponding to the data signal, and the two use different precharging times. Even after the precharging does occur, the final brightness of the bright column and the dark column still does not reach the corresponding data signal.
  • the charging voltage can also reduce the brightness difference between the bright column and the dark column, and even make the brightness of the two equal, and better improve the problem of vertical bright and dark lines.
  • the pixels 122 in the second column of each row are precharged separately, the pixels 121 in the first column of each row are not precharged.
  • the charging voltage of the pixels 121 in the first column is as high as close to or reaches the preset charging voltage.
  • the pixels 122 in the second column in each row are precharged.
  • the pixels 122 in the second column correspond to the dark columns. Because the pixels 122 in the second column are precharged, the impact of the cross-voltage problem is avoided, and the charging time is increased, so that the pixels 122 in the second column Finally, the charging voltage increases, the pixels 122 in the second column become brighter, and finally approach or reach the state of the preset charging voltage.
  • the final charging voltages of the pixels in the first row and the pixels in the second row are close, so that the pixels in the first column 121 and The brightness difference of the pixels 122 in the second column is reduced, and the problem of vertical bright and dark lines is improved; and, because the first column of pixels 121 is not provided with a pre-charging module, the number of wiring is less, which avoids the problem of vertical bright and dark lines and While improving the overall brightness of the display panel 101, reducing the increase in wiring corresponding to the pre-charging circuit brings about the problem of reduced transmittance.
  • the ratio of the pre-charge time to the opening time of a row of scan lines is equal to a preset ratio value.
  • the pre-charging time can be half, two-thirds, one-third, one-quarter, three-quarters, etc. of the opening time of a row of scan lines.
  • the ratio of the pre-charging time to the opening time of a row of scan lines is equal to a preset ratio value, and the brightness difference between bright columns and dark columns varies according to the display panel 101, and different preset ratio values are set for pre-charging Time ensures that the final charging voltages of the pixels 121 in the first column and the pixels 122 in the second column reach a comparable level, which improves the overall brightness of the display panel 101 while improving the problem of vertical bright and dark lines.
  • a display device 100 which includes the display panel 101 as described above.
  • the panel of this application can be a TN panel (the full name is Twisted Nematic, that is, a twisted nematic panel), an IPS panel (In-Plane Switching, plane conversion), a VA panel (Multi-domain Vertical Alignment, multi-quadrant vertical alignment technology), Of course, other types of panels can also be used, as long as they are applicable.
  • TN panel the full name is Twisted Nematic, that is, a twisted nematic panel
  • IPS panel In-Plane Switching, plane conversion
  • VA panel Multi-domain Vertical Alignment, multi-quadrant vertical alignment technology

Landscapes

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

Abstract

一种显示面板（101）、驱动方法和显示装置（100）。包括：第一列像素（121）和第二列像素（122），给第2n行扫描线对应的第二列像素（122）进行充电时，同时给第2n+4行扫描线对应的第二列像素（122）进行预充电。

Description

显示面板、驱动方法和显示装置
本申请要求于2019年01月30日提交中国专利局、申请号为CN201910089193.5、申请名称为“一种显示面板、驱动方法和显示装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及显示技术领域，尤其涉及一种显示面板、驱动方法和显示装置。
背景技术
这里的陈述仅提供与本申请有关的背景信息，而不必然地构成现有技术。
随着科技的发展和进步，平板显示器由于具备机身薄、省电和辐射低等热点而成为显示器的主流产品，得到了广泛应用。平板显示器包括薄膜晶体管液晶显示器(Thin Film Transistor-Liquid Crystal Display，TFT-LCD)和有机发光二极管(Organic Light-Emitting Diode，OLED)显示器等。其中，薄膜晶体管液晶显示器通过控制液晶分子的旋转方向，以将背光模组的光线折射出来产生画面，具有机身薄、省电、无辐射等众多优点。而有机发光二极管显示器是利用有机电致发光二极管制成，具有自发光、响应时间短、清晰度与对比度高、可实现柔性显示与大面积全色显示等诸多优点。
TFT-LCD技术中包括双栅型(Dual-gate)设计，当搭配一扫描线两数据线的驱动方式时，显示面板会有垂直亮暗线产生。
技术解决方案
本申请的目的在于提供一种显示面板、驱动方法和显示装置，以解决垂直亮暗线的问题。
为实现上述目的，本申请提供了一种显示面板，包括：
基板；设置在所述基板上的多条数据线；设置在所述基板上多条扫描线；多个像素，多个所述像素包括沿着扫描线方向分别设置不同颜色的子像素；输出栅启动信号到所述扫描线以打开所述像素的栅极驱动芯片；
每一行所述像素包括多个像素组，每个所述像素组包括相邻的在前的第一列像素和在后的第二列像素，所述第一列像素和第二列像素与同一数据线连接；且所述第一列像素和第二列像素分别对应连接至第2n-1行扫描线和第2n行扫描线；
同一组所述像素组的第一列像素和第二列像素采用的数据驱动信号的极性相反；并且，第2n行扫描线对应的所述第二列像素，和第2n+1行扫描线对应的所述第一列像素的数据驱动信号的极性相同；
在打开第2n行扫描线的时候，给第2n行扫描线对应的第二列像素进行充电；并在打开第2n行扫描线的打开时间周期内，打开第2n+4行扫描线，给第2n+4行扫描线对应的第二列像素进行预充电；所述n为大于等于1的自然数。
本申请还公开了一种显示面板的驱动方法，包括步骤：
在第2n-1行扫描线接收栅启动信号时，为第2n-1行扫描线和第m列数据线对应的第一列像素充电第一极性的数据驱动信号；在第2n行扫描线接收栅启动信号时，为第2n行扫描线和第m列数据线对应的第二列像素充电第二极性的数据驱动信号，并打开第2n+4行扫描线对应第二列像素进行预充电；m和n是大于等于1的自然数。
可选的，所述在第2n-1行扫描线接收栅启动信号时，为第2n-1行扫描线和第m列数据线对应的第一列像素充电第一极性的数据驱动信号的步骤还包括：
在第2n-1行扫描线对应的第一行扫描线的打开时间周期内，打开第2n+3行扫描线，并给对应的第一列像素进行预充电；其中，所述第一列像素的预充电时间小于或等于第二列像素的预充电时间。
可选的，所述驱动方法中，为每一行的所述第二列像素进行预充电的预充电时间小于一行扫描线的打开时间。
可选的，为每一行的所述第二列像素进行预充电，预充电时间等于一行扫描线的打开时间。
可选的，在分别给每一行所述第二列像素进行预充电的同时，给每一行所述第一列像素进行相同时间的预充电。
可选的，在分别给每一行所述第二列像素进行预充电的同时，给每一行所述第一列像素进行预充电；且给每一行所述第二列像素进行预充电的时间，大于给每一行所述第一列像素进行预充电的时间。
可选的，在分别给每一行所述第二列像素进行预充电的同时，不给每一行所述第一列像素进行预充电。
可选的，所述预充电时间与一行扫描线的打开时间的比例等于预设比例值。
本申请还公开了一种显示装置，包括如上述所述的显示面板。
本方案中，在打开第2n行扫描线的时候，给第2n行扫描线对应的第二列像素(即每个暗列的像素)进行充电；并在打开第2n行扫描线的打开时间周期内，打开第2n+4行扫描线，给第2n+4行扫描线对应的第二像素进行预充电，使得暗列的像素的充电电压得以提升，减少亮列的像素和暗列的像素的最终充电电压的差异，甚至消除差异，最后使得第一列像素和第二列像素的充电量相当，从而第一列像素和第二列像素的亮度差异减少，改善垂直亮暗线的问题。
附图说明
所包括的附图用来提供对本申请实施例的进一步的理解，其构成了说明书的一部分，用于例示本申请的实施方式，并与文字描述一起来阐释本申请的原理。显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。在附图中：
图1是本申请实施例一种显示面板的像素驱动架构的示意图(1)；
图2是本申请实施例一种显示面板的像素驱动架构对应的数字信号波形图的示意图；
图3是本申请一实施例一种显示面板的一数据线两扫描线的示意图；
图4是本申请一实施例一种显示面板的像素驱动架构的示意图(2)；
图5是本申请一实施例一种显示面板的驱动方法流程图的示意图(1)；
图6是本申请一实施例一种显示面板的驱动方法中，只对第二列像素进行预充电的对应的波形图的示意图；
图7是本申请一实施例一种显示面板的驱动方法流程图的示意图(2)；
图8是本申请一实施例一种显示面板的驱动方法中，第一列像素的的预充电时间小于第二列像素的预充电时间对应的波形图的示意图；
图9是本申请一实施例一种显示面板的驱动方法中，第一列像素和第二列像素都进行预充电的波形图示意图；
图10是本申请一实施例一种显示装置的示意图。
本申请的实施方式
这里所公开的具体结构和功能细节仅仅是代表性的，并且是用于描述本申请的示例性实施例的目的。但是本申请可以通过许多替换形式来具体实现，并且不应当被解释成 仅仅受限于这里所阐述的实施例。
在本申请的描述中，需要理解的是，术语“中心”、“横向”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本申请的描述中，除非另有说明，“多个”的含义是两个或两个以上。另外，术语“包括”及其任何变形，意图在于覆盖不排他的包含。
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本申请中的具体含义。
这里所使用的术语仅仅是为了描述具体实施例而不意图限制示例性实施例。除非上下文明确地另有所指，否则这里所使用的单数形式“一个”、“一项”还意图包括复数。还应当理解的是，这里所使用的术语“包括”和/或“包含”规定所陈述的特征、整数、步骤、操作、单元和/或组件的存在，而不排除存在或添加一个或更多其他特征、整数、步骤、操作、单元、组件和/或其组合。
TFT-LCD技术有三种设计：普通型(Normal)、双栅型(Dual-gate)、三闸极型(Tri-gate)。以HD(1366 X 768)解析度为例；普通设计有4098条数据线，768条扫描线；双栅型(Dual-gate)设计有2049条数据线，1536条扫描线，相比普通设计，其数据线减少一半为原来的1/2，扫描线增加为原来的两倍；三闸极型(Tri-gate)设计有1366条数据线，2304条扫描线，相比普通设计，其数据线减少为原来的1/3，栅极线增加为原来的三倍。
双栅型(Dual-gate)设计，有两种驱动方式:一扫描线和两数据线以及和两数据线一扫描线，双栅型(Dual-gate)的设计搭配这两种驱动方式中的任意一种，在RC设计一定情况下，由于工厂制程能力的限制，实际工艺制程中RC可能会做大，导致充电率 不足，在低灰阶画面下容易看到垂直亮暗线。
参考图1和图2所示，以图1所示的驱动架构为例，D1、D2、D3、D4、D5和D6都为数据线，G1、G2为扫描线，扫描方向如图中所示，参考图3所示，一条数据线对应两行扫描线，一条数据线控制左右两列的像素，以D1为例：当G1第一行扫描线电压打开时，D1数据信号进来，D1先给数据线左侧的正极性的像素信号,经过一个扫描线打开时间之后，下一行扫描线G2打开，D1给数据线右侧的负极性的像素信号，参考图2，从正极性到负极性转化跨压为14V,再经过一扫描线打开时间之后，第三行扫描线打开，D1又先给数据线左侧的负极性的像素信号，此时从负极性到负极性跨压为0V,参考图2所示，所有数据线左侧的像素到右侧的像素跨压最大，在充电率不足的情况下，极容易产生亮暗线，即跨压大的像素暗，无跨压的像素亮，所以，数据线左侧的像素亮，右侧的像素暗，形成亮暗线。
下面参考附图和可选的实施例对本申请作进一步说明。
参考图4所示，本申请一实施例公开了一种显示面板，包括：
基板120；设置在所述基板120上的多条数据线；设置在所述基板120上的多条扫描线；多个像素，多个所述像素包括沿着扫描线方向分别设置不同颜色的子像素；输出栅启动信号到所述扫描线以打开所述像素的栅极驱动芯片110；
每一行所述像素包括多个像素组，每个所述像素组包括相邻的在前的第一列像素121和在后的第二列像素122，所述第一列像素121和第二列像素122与同一数据线连接；且所述第一列像素121和第二列像素122分别对应连接至第2n-1行扫描线和第2n行扫描线；
同一组所述像素组的第一列像素121和第二列像素122采用的数据驱动信号的极性相反；并且，第2n行扫描线对应的所述第二列像素122，和第2n+1行扫描线对应的所述第一列像素121的数据驱动信号的极性相同；
在打开第2n行扫描线的时候，给第2n行扫描线对应的第二列像素122进行充电；并在打开第2n行扫描线的打开时间周期内，打开第2n+4行扫描线，给第2n+4行扫描线对应的第二列像素122进行预充电；所述n为大于等于1的自然数。
其中，该n的取值上限于扫描线的总行数匹配。
以当前像素组和连接于同一条数据线的下一组组像素组为例，由于每一组第一列像素121和第二列像素122共用一条数据线，且第一列像素121和第二列像素122连接不 同的扫描线。当栅极驱动芯片110输出栅启动信号到扫描线以打开所述每一行的像素时，第一列像素121先打开并进行充电；当第一行的扫描线关闭时，下一行扫描线打开，接着第二列像素122打开并进行充电。由于当前像素组的第一列像素121和第二列像素122数据驱动信号的极性相反，第一列像素121和第二列像素122连接同一数据线，而当前组的第二列像素122和下一组的第一列像素121极性相同，从当前组的第二列像素122切换到下一组的第一列像素121极性时极性没有发生反转；而当第一列像素121扫描时间结束，该第二列像素122扫描时间开始时，由于同一条数据线中的数据电压的极性发生转换时，数据线的电压值需要一定的时间才能达到预定电压，扫描时间初期，第二列像素122的充电效率较低使得第二列像素122的的最终充电电压较第一列像素121低，会出现第一列像素121列偏亮，而第二列像素122列偏暗的垂直亮暗线问题。
本方案中，Gate(2n)为第2n行扫描线，Gate(2n+4)为第2n+4行扫描线。在打开第2n行扫描线的时候，给第2n行扫描线对应的第二列像素122(即每个暗列的像素)进行充电；并在打开第2n行扫描线的打开时间周期内，打开第2n+4行扫描线，给第2n+4行扫描线对应的第二像素进行预充电，使得暗列的像素的充电电压得以提升，减少亮列的像素和暗列的像素的最终充电电压的差异，甚至消除差异，最后使得第一列像素121和第二列像素122的充电量相当，从而第一列像素121和第二列像素122的亮度差异减少，改善垂直亮暗线的问题。
其中，该暗列必定进行预充电，预充电的时间可以小于等于一行扫描线打开时间，而亮列可以预充电也可以不预充电，具体包括但不局限于以下几种情况：
以下的驱动方法对应上述的显示面板的驱动架构。
本申请还公开了一种显示面板101的驱动方法，参考图5，包括步骤：
S51：在第2n-1行扫描线接收栅启动信号时，为第2n-1行扫描线和第m列数据线对应的第一列像素121充电第一极性的数据驱动信号；
S52：在第2n行扫描线接收栅启动信号时，为第2n行扫描线和第m列数据线对应的第二列像素122充电第二极性的数据驱动信号，并打开第2n+4行扫描线对应第二列像素122进行预充电；m和n是大于等于1的自然数。
其中，第2n-1行扫描线和第2n行扫描线对应的第m列数据线为同一列数据线。
本方案中，在不给第二列像素122进行预充电之前；该第2n-1行扫描线接收栅启动信号时，为第2n-1行扫描线和第m列数据线对应的第一列像素121充电第一极性的 数据驱动信号；该第一列像素121的亮度较亮，处于接近预设充电电压或者已经达到预设充电电压的状态；而该第二列像素122，则由于上一行扫描线对应的第一列像素121与之极性相反，出现跨压问题，扫描线初期充电效率不足，造成了第二列像素122偏暗，出现垂直亮暗线问题。
其中，该n的取值上限与扫描线的总行数匹配；该m的取值上限与数据线的总列数匹配。
参考图6的波形图，仅给暗列的像素进行预充电。在第2n行扫描线接收栅启动信号时，为第2n行扫描线和第2n行数据线对应的第二列像素122充电第二极性的数据驱动信号，并打开第2n+1行扫描线对应第二列像素122进行预充电，虽然，此时连接于同一条数据线中的第一列像素121和第二列像素122的数据电压的仍然存在极性发生跨压转换的情况，但是预充电增加了像素的充电时间，避免了跨压的问题带来的影响，而且在预充电之后，该第二列像素122的充电时间得到极大提升，使得第二列像素122的最后充电电压增大，第二列像素122变亮，甚至达到预设的充电电压；如此，该第一行像素和第二行像素的最终充电电压都接近或者达到预设充电电压，最后使得第一列像素121和第二列像素122的充电量相当，从而第一列像素121和第二列像素122的亮度差异减少，改善垂直亮暗线的问题。
作为本申请的另一实施例，参考图7，一种显示面板101的驱动方法包括步骤：
S71：在第2n-1行扫描线接收栅启动信号时，为第2n-1行扫描线和第m列数据线对应的第一列像素充电第一极性的数据驱动信号；
S72：在第2n-1行扫描线对应的第一行扫描线的打开时间周期内，打开第2n+3行扫描线，并给对应的第一列像素进行预充电；
S73：在第2n行扫描线接收栅启动信号时，为第2n行扫描线和第m列数据线对应的第二列像素充电第二极性的数据驱动信号，并打开第2n+4行扫描线对应第二列像素进行预充电；m和n是大于等于1的自然数。
其中，参考图8，所述第一列像素121的预充电时间小于或等于第二列像素122的预充电时间。
本方案中，栅极驱动芯片110输出栅启动信号到第2n行扫描线时，打开第2n行扫描线上每一条数据线对应的第二列像素122，并进行充电；同时，在第n行扫描线的打开时间周期内，打开第2n+4行扫描线，并给对应的所述第二列像素122进行预充电； 如此，由于该第2n行扫描线对应的第二列像素122和第2n+4行的第二列像素122对应的数据驱动信号是同极性的，因而，即使连接于同一条数据线中的第一列像素121和第二列像素122的数据电压的极性发生跨压转换，但是由于预充电时间充电，因而，不仅避免了跨压的问题，而且在预充电之后，该第二列像素122的充电时间得到极大提升，使得第二列像素122的最后充电电压增大，第二列像素122变亮，甚至达到预设的充电电压；
其中，Gate(2n-1)为第2n-1行扫描线，Gate(2n+3)为第2n+3行扫描线。所述栅极驱动芯片110输出栅启动信号到第2n-1行扫描线时，打开第2n-1行扫描线上每一条数据线对应的所述第一列像素121，并在第2n-1行扫描线对应的第一行扫描线的打开时间周期内，打开第2n+3行扫描线，并给对应的第一列像素121进行预充电，此处给第一列像素121预充电，使得第一列像素121达到预设的充电电压；如此，该第一行像素和第二行像素的最终充电电压都接近或者达到预设充电电压，最后使得第一列像素121和第二列像素122的充电量相当，从而第一列像素121和第二列像素122的亮度差异减少，在改善垂直亮暗线的问题的同时，有利于提升整体面板的显示亮度。
举例说明，例如该第一列像素121和第二列像素122的预充电电压均为10V，在不进行预充电的情况下，该第一列像素121的充电电压为8V，该第二列像素122的充电电压为7V，在为第一列像素121和第二列像素122进行预充电之后，该第一列像素121的最终充电电压可以达到10V，该第二像素的最终充电电压也可以达到10,从而解决垂直亮暗线问题，而且面板的整体亮度从(7+8)/2＝7.5，提升到了10V，亮度明显提升，提升了显示面板101的显示质量。
在一实施例中，为每一行的所述第二列像素122进行预充电的预充电时间小于一行扫描线的打开时间。
本方案中，为每一行的所述第二列像素122进行预充电，预充电时间小于一行扫描线的打开时间，而且在预充电之后，该第二列像素122的充电时间得到了提升，不仅跨压带来的问题被抵消，而且使得第二列像素122的最后充电电压增大；给第一列像素121进行预充电则可以将原来充电不足的像素进行了亮度补偿，使得两者最终达到充电电压相当，亮度差异减少，改善垂直亮暗线的问题。
在一实施例中，为每一行的所述第二列像素122进行预充电，预充电时间等于一行扫描线的打开时间。
本方案中，为每一行的所述第二列像素122进行预充电，预充电时间等于一行扫描线的打开时间，该第二列像素122的充电时间得到了较大的提升，不仅跨压带来的问题被抵消，而且将跨压带来的影响抵消之后，还有充足的时间给对应的第二列像素122进行预充电，使得第二列像素122的最后充电电压增大；给第一列像素121进行预充电则可以将原来充电不足的像素进行了亮度补偿，使得两者最终达到充电电压相当，亮度差异减少，不仅改善垂直亮暗线的问题，而且，还提升了显示面板101的整体亮度。
在一实施例中，参考图9，在分别给每一行所述第二列像素122进行预充电的同时，给每一行所述第一列像素121进行相同时间的预充电。
本方案中，为每一行的所述第二列像素122进行预充电，且预充电时间等于一行扫描线的打开时间。所述第一列像素121和所述第二列像素122都进行预充电，第一列像素121对应亮列，第二列像素122对应暗列。虽然，此时连接于同一条数据线中的第一列像素121和第二列像素122的数据电压的极性发生跨压转换，但是由于预充电时间充电，因而，不仅避免了跨压的问题带来的影响，而且使得该第二列像素122的充电时间得到较大提升，使得第二列像素122的最后充电电压增大，第二列像素122变亮，甚至达到预设的充电电压；
同时，给对应的第一列像素121进行预充电，由于第一列像素121的亮度较亮，大多数处于接近预设充电电压或者已经达到预设充电电压的状态，但仍有部分充电不足，给第一列像素121预充电，使得第一列像素121达到预设的充电电压；如此，该第一行像素和第二行像素的最终充电电压都接近或者达到预设充电电压，最后使得第一列像素121和第二列像素122的充电量相当，从而第一列像素121和第二列像素122的亮度差异减少，在改善垂直亮暗线的问题的同时，有利于提升整体面板的显示亮度。
在一实施例中，在分别给每一行所述第二列像素122进行预充电的同时，给每一行所述第一列像素121进行预充电；且给每一行所述第二列像素122进行预充电的时间，大于给每一行所述第一列像素121进行预充电的时间。
本方案中，分别给每一行所述第二列像素122进行预充电的同时，给每一行所述第一列像素121进行预充电，同时，每一行所述第二列像素122进行预充电的时间大于每一行所述第一列像素121进行预充电的时间。这样该第二列像素122和第一列像素121的充电时间得到了较大的提升，不仅跨压带来的问题被抵消，而且将跨压带来的影响抵消之后，还有充电的时间给对应的第二列像素122进行预充电，使得第二列像素122和 第一列像素121的最后充电电压增大，提升了显示面板101的整体亮度；而给第一列像素121进行预充电的时间比第二列像素122较短，则是因为对于大尺寸面板，由于扫描行数太多，有时候即使对应亮列的像素也可能是充电不足的，亮列距离数据信号对应的充电电压较远，而暗列距离数据信号对应的充电电压较近，两者采用不同的预充电时间，那么即使真的出现进行预充电之后，最终亮列和暗列的最终亮度仍然没有达到数据信号对应的充电电压的情况，也可以达到减小亮列和暗列的亮度差异，甚至使得两者的亮度相当，更好的改善垂直亮暗线的问题。
在一实施例中，在分别给每一行所述第二列像素122进行预充电的同时，不给每一行所述第一列像素121进行预充电。
本方案中，很多情况下，第一列像素121的充电电压较高至接近或者达到预设充电电压的程度，此时，只给每一行所述的第二列像素122进行预充电，由于第二列像素122对应的为暗列，由于给第二列像素122进行了预充电，因而，避免了跨压的问题带来的影响，而且，还增加了充电时间，使得第二列像素122的最后充电电压增大，第二列像素122变亮，最终接近或者达到预设充电电压的状态，如此，该第一行像素和第二行像素的最终充电电压接近，从而第一列像素121和第二列像素122的亮度差异减少，改善垂直亮暗线的问题；并且，由于没有给第一列像素121进行预充电模块的设置，因而，走线数量较少，在避免垂直亮暗线的问题且提升显示面板101整体亮度的同时，减少预充电电路对应的走线增加带来了穿透率减少的问题。
在一实施例中，所述预充电时间与一行扫描线的打开时间的比例等于预设比例值。
其中，即该预充电时间可以是一行扫描线打开时间的一半、三分之二，三分之一，四分之一，四分之三等。
本方案中，所述预充电时间与一行扫描线的打开时间的比例等于预设比例值，亮列和暗列的亮度差异程度根据显示面板101不同而不同，设置不同预设比例值的预充电时间，保证最终第一列像素121和第二列像素122的充电电压达到相当的程度，在改善垂直亮暗线的问题的同时，提升了显示面板101的整体亮度。
作为本申请的另一实施例，参考图10所示，公开了一种显示装置100，包括如上述所述的显示面板101。
需要说明的是，本方案中涉及到的各步骤的限定，在不影响具体方案实施的前提下，并不认定为对步骤先后顺序做出限定，写在前面的步骤可以是在先执行的，也可以是在 后执行的，甚至也可以是同时执行的，只要能实施本方案，都应当视为属于本申请的保护范围。
本申请的面板可以是TN面板(全称为Twisted Nematic，即扭曲向列型面板)、IPS面板(In-Plane Switching，平面转换)、VA面板(Multi-domain Vertical Alignment，多象限垂直配向技术)，当然，也可以是其他类型的面板，适用即可。
以上内容是结合具体的可选实施方式对本申请所作的进一步详细说明，不能认定本申请的具体实施只局限于这些说明。对于本申请所属技术领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干简单推演或替换，都应当视为属于本申请的保护范围。

Claims (20)

  1. 一种显示面板，包括：
    基板；
    多条数据线，设置在所述基板上；
    多条扫描线，设置在所述基板上；
    多个像素，多个所述像素包括沿着扫描线方向分别设置不同颜色的子像素；
    栅极驱动芯片，输出栅启动信号到所述扫描线以打开所述像素；
    每一行所述像素包括多个像素组，每个所述像素组包括相邻的在前的第一列像素和在后的第二列像素，所述第一列像素和第二列像素与同一数据线连接；且所述第一列像素和第二列像素分别对应连接至第2n-1行扫描线和第2n行扫描线；
    同一组所述像素组的第一列像素和第二列像素采用的数据驱动信号的极性相反；并且，第2n行扫描线对应的所述第二列像素，和第2n+1行扫描线对应的所述第一列像素的数据驱动信号的极性相同；
    在打开第2n行扫描线的时候，给第2n行扫描线对应的第二列像素进行充电；并在打开第2n行扫描线的打开时间周期内，打开第2n+4行扫描线，给第2n+4行扫描线对应的第二列像素进行预充电；
    所述n为大于或等于1的自然数。
  2. 一种显示面板的驱动方法，包括步骤：
    在第2n-1行扫描线接收栅启动信号时，为第2n-1行扫描线和第m列数据线对应的第一列像素充电第一极性的数据驱动信号；
    在第2n行扫描线接收栅启动信号时，为第2n行扫描线和第m列数据线对应的第二列像素充电第二极性的数据驱动信号，并打开第2n+4行扫描线对应第二列像素进行预充电；
    m和n是大于等于1的自然数。
  3. 如权利要求2所述的一种显示面板的驱动方法，其中，所述在第2n-1行扫描线接收栅启动信号时，为第2n-1行扫描线和第m列数据线对应的第一列像素充电第一极性的数据驱动信号的步骤还包括：
    在第2n-1行扫描线对应的第一行扫描线的打开时间周期内，打开第2n+3行扫描线，并给对应的第一列像素进行预充电；
    其中，所述第一列像素的预充电时间小于或等于第二列像素的预充电时间。
  4. 如权利要求3所述的一种显示面板的驱动方法，其中，为每一行的所述第二列像素进行预充电的预充电时间小于一行扫描线的打开时间。
  5. 如权利要求3所述的一种显示面板的驱动方法，其中，为每一行的所述第二列像素进行预充电，预充电时间等于一行扫描线的打开时间。
  6. 如权利要求3所述的一种显示面板的驱动方法，其中，在分别给每一行所述第二列像素进行预充电的同时，给每一行所述第一列像素进行相同时间的预充电。
  7. 如权利要求4所述的一种显示面板的驱动方法，其中，在分别给每一行所述第二列像素进行预充电的同时，给每一行所述第一列像素进行相同时间的预充电。
  8. 如权利要求5所述的一种显示面板的驱动方法，其中，在分别给每一行所述第二列像素进行预充电的同时，给每一行所述第一列像素进行相同时间的预充电。
  9. 如权利要求3所述的一种显示面板的驱动方法，其中，在分别给每一行所述第二列像素进行预充电的同时，给每一行所述第一列像素进行预充电；
    且给每一行所述第二列像素进行预充电的时间，大于给每一行所述第一列像素进行预充电的时间。
  10. 如权利要求4所述的一种显示面板的驱动方法，其中，在分别给每一行所述第二列像素进行预充电的同时，给每一行所述第一列像素进行预充电；
    且给每一行所述第二列像素进行预充电的时间，大于给每一行所述第一列像素进行预充电的时间。
  11. 如权利要求2所述的一种显示面板的驱动方法，其中，在分别给每一行所述第二列像素进行预充电的同时，不给每一行所述第一列像素进行预充电。
  12. 如权利要求3所述的一种显示面板的驱动方法，其中，所述预充电时间与一行扫描线的打开时间的比例等于预设比例值。
  13. 一种显示装置，包括一种显示面板的驱动方法，包括步骤：
    在第2n-1行扫描线接收栅启动信号时，为第2n-1行扫描线和第m列数据线对应的第一列像素充电第一极性的数据驱动信号；
    在第2n行扫描线接收栅启动信号时，为第2n行扫描线和第m列数据线对应的第二 列像素充电第二极性的数据驱动信号，并打开第2n+4行扫描线对应第二列像素进行预充电；
    m和n是大于等于1的自然数。
  14. 如权利要求13所述的一种显示装置，其中，所述在第2n-1行扫描线接收栅启动信号时，为第2n-1行扫描线和第m列数据线对应的第一列像素充电第一极性的数据驱动信号的步骤还包括：
    在第2n-1行扫描线对应的第一行扫描线的打开时间周期内，打开第2n+3行扫描线，并给对应的第一列像素进行预充电；
    其中，所述第一列像素的预充电时间小于或等于第二列像素的预充电时间。
  15. 如权利要求14所述的一种显示装置，其中，为每一行的所述第二列像素进行预充电的预充电时间小于一行扫描线的打开时间。
  16. 如权利要求14所述的一种显示装置，其中，为每一行的所述第二列像素进行预充电，预充电时间等于一行扫描线的打开时间。
  17. 如权利要求14所述的一种显示装置，其中，在分别给每一行所述第二列像素进行预充电的同时，给每一行所述第一列像素进行相同时间的预充电。
  18. 如权利要求14所述的一种显示装置，其中，在分别给每一行所述第二列像素进行预充电的同时，给每一行所述第一列像素进行预充电；
    且给每一行所述第二列像素进行预充电的时间，大于给每一行所述第一列像素进行预充电的时间。
  19. 如权利要求13所述的一种显示装置，其中，在分别给每一行所述第二列像素进行预充电的同时，不给每一行所述第一列像素进行预充电。
  20. 如权利要求14所述的一种显示装置，其中，所述预充电时间与一行扫描线的打开时间的比例等于预设比例值。
PCT/CN2019/075511 2019-01-30 2019-02-20 显示面板、驱动方法和显示装置 Ceased WO2020155215A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US16/349,279 US11335287B2 (en) 2019-01-30 2019-02-20 Display panel, driving method for a display panel, and display device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910089193.5 2019-01-30
CN201910089193.5A CN109658869A (zh) 2019-01-30 2019-01-30 一种显示面板、驱动方法和显示装置

Publications (1)

Publication Number Publication Date
WO2020155215A1 true WO2020155215A1 (zh) 2020-08-06

Family

ID=66122300

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/075511 Ceased WO2020155215A1 (zh) 2019-01-30 2019-02-20 显示面板、驱动方法和显示装置

Country Status (3)

Country Link
US (1) US11335287B2 (zh)
CN (1) CN109658869A (zh)
WO (1) WO2020155215A1 (zh)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10967927B2 (en) 2017-09-22 2021-04-06 Link Mfg., Ltd. Mounting brackets for auxiliary suspension systems
CN111369926B (zh) * 2020-03-18 2022-09-27 Tcl华星光电技术有限公司 显示面板的充电方法及装置
CN111883084B (zh) * 2020-07-30 2021-11-09 惠科股份有限公司 一种驱动方法、补偿时间表的构建方法和显示装置
CN115691381B (zh) 2022-09-09 2023-08-18 惠科股份有限公司 显示面板的驱动方法、电路和显示装置
CN116778842B (zh) * 2023-06-16 2025-12-30 合肥芯颖科技有限公司 驱动电路、驱动电路控制方法及存储介质

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1637544A (zh) * 2003-12-04 2005-07-13 夏普株式会社 液晶显示装置及其驱动方法
CN1790470A (zh) * 2004-12-13 2006-06-21 三星电子株式会社 显示装置及其驱动方法
US20090167661A1 (en) * 2007-12-30 2009-07-02 Lg Display Co., Ltd. Liquid crystal display and driving method thereof
CN101952875A (zh) * 2008-02-19 2011-01-19 夏普株式会社 显示装置、显示装置的驱动方法、以及扫描信号线驱动电路
CN102592537A (zh) * 2011-12-16 2012-07-18 友达光电股份有限公司 像素电路的驱动方法
CN108877725A (zh) * 2018-08-31 2018-11-23 重庆惠科金渝光电科技有限公司 一种显示面板的驱动方法及装置
CN109215608A (zh) * 2018-11-12 2019-01-15 惠科股份有限公司 显示面板及其驱动方法

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060131036A (ko) * 2005-06-14 2006-12-20 삼성전자주식회사 액정 표시 장치의 구동 장치 및 구동 방법
JP5132566B2 (ja) * 2006-09-28 2013-01-30 シャープ株式会社 液晶表示装置およびテレビジョン受信機
TWI397038B (zh) * 2008-11-05 2013-05-21 Au Optronics Corp 使用半源極驅動架構之顯示面板及其顯示資料供應方法
CN101414089A (zh) * 2008-11-24 2009-04-22 上海广电光电子有限公司 液晶显示装置的驱动方法
US8665192B2 (en) * 2009-07-08 2014-03-04 Hitachi Displays, Ltd. Liquid crystal display device
CN101814278B (zh) * 2010-04-14 2013-01-09 福州华映视讯有限公司 双闸极液晶显示装置及其驱动方法
CN101995698A (zh) * 2010-10-08 2011-03-30 友达光电股份有限公司 一种对液晶面板的多个像素进行预充电压的方法
CN102568398B (zh) * 2012-03-02 2014-06-04 福州华映视讯有限公司 亮度均匀的双闸极液晶显示器
CN104391411B (zh) * 2014-12-16 2017-06-06 深圳市华星光电技术有限公司 一种液晶显示面板
CN104680998B (zh) * 2015-03-18 2017-03-08 京东方科技集团股份有限公司 一种源极驱动器及液晶显示装置
CN107204165B (zh) * 2017-06-06 2019-04-12 惠科股份有限公司 显示面板的驱动方法和驱动装置及显示装置
CN108847194A (zh) * 2018-06-22 2018-11-20 惠科股份有限公司 显示装置和驱动方法
CN111856826A (zh) * 2019-04-25 2020-10-30 堺显示器制品株式会社 液晶显示装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1637544A (zh) * 2003-12-04 2005-07-13 夏普株式会社 液晶显示装置及其驱动方法
CN1790470A (zh) * 2004-12-13 2006-06-21 三星电子株式会社 显示装置及其驱动方法
US20090167661A1 (en) * 2007-12-30 2009-07-02 Lg Display Co., Ltd. Liquid crystal display and driving method thereof
CN101952875A (zh) * 2008-02-19 2011-01-19 夏普株式会社 显示装置、显示装置的驱动方法、以及扫描信号线驱动电路
CN102592537A (zh) * 2011-12-16 2012-07-18 友达光电股份有限公司 像素电路的驱动方法
CN108877725A (zh) * 2018-08-31 2018-11-23 重庆惠科金渝光电科技有限公司 一种显示面板的驱动方法及装置
CN109215608A (zh) * 2018-11-12 2019-01-15 惠科股份有限公司 显示面板及其驱动方法

Also Published As

Publication number Publication date
US11335287B2 (en) 2022-05-17
CN109658869A (zh) 2019-04-19
US20210327379A1 (en) 2021-10-21

Similar Documents

Publication Publication Date Title
CN101354512B (zh) 液晶显示器及其驱动方法
WO2020155215A1 (zh) 显示面板、驱动方法和显示装置
US8373638B2 (en) Display apparatus
US7907106B2 (en) Liquid crystal display and driving method thereof
CN102810304B (zh) 一种像素单元、像素结构、显示装置及像素驱动方法
US7816683B2 (en) Array substrate and display apparatus having the same
KR100893488B1 (ko) 액정표시장치
US10467941B2 (en) Display device and method of sub-pixel transition
US20180053478A1 (en) Liquid crystal display panel and driving method thereof
WO2017121060A1 (zh) 液晶显示面板及其驱动方法
US10008163B1 (en) Driver structure for RGBW four-color panel
WO2020107578A1 (zh) 显示面板的驱动方法
CN101432793A (zh) 有源矩阵基片和配备该基片的显示装置
CN106782404A (zh) 像素驱动架构及液晶显示面板
US11482184B2 (en) Row drive circuit of array substrate and display device
US10942405B2 (en) Display device
CN105527737A (zh) 液晶显示面板及其驱动方法
CN102598104A (zh) 有源矩阵基板、液晶面板、液晶显示装置、液晶显示单元、电视接收机
US20100259519A1 (en) Subpixel structure and liquid crystal display panel
WO2017096706A1 (zh) 液晶显示面板结构
CN100594412C (zh) 液晶显示装置及其驱动方法
WO2020051992A1 (zh) 一种驱动电路、驱动方法和显示面板
US11462187B2 (en) Row drive circuit of array substrate and display device
JP2004145346A (ja) 液晶表示装置及びその製造方法
WO2010024049A1 (ja) アクティブマトリクス基板、液晶パネル、液晶表示装置、液晶表示ユニット、テレビジョン受像機

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19913462

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19913462

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 19913462

Country of ref document: EP

Kind code of ref document: A1

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 24.01.2022)

122 Ep: pct application non-entry in european phase

Ref document number: 19913462

Country of ref document: EP

Kind code of ref document: A1