WO2023245957A1 - 显示面板的驱动方法、驱动装置及显示装置 - Google Patents
显示面板的驱动方法、驱动装置及显示装置 Download PDFInfo
- Publication number
- WO2023245957A1 WO2023245957A1 PCT/CN2022/130608 CN2022130608W WO2023245957A1 WO 2023245957 A1 WO2023245957 A1 WO 2023245957A1 CN 2022130608 W CN2022130608 W CN 2022130608W WO 2023245957 A1 WO2023245957 A1 WO 2023245957A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- display
- sub
- display panel
- voltage
- brightness
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000012512 characterization method Methods 0.000 claims description 20
- 238000010586 diagram Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 6
- 241001270131 Agaricus moelleri Species 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 3
- 239000003086 colorant Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
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]
-
- 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
- G09G3/2007—Display of intermediate tones
- G09G3/2074—Display of intermediate tones 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
- G09G3/22—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]
- G09G3/3275—Details of drivers for data electrodes
- G09G3/3291—Details of drivers for data electrodes in which the data driver supplies a variable data voltage for setting the current through, or the voltage across, the light-emitting elements
-
- 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
- G09G2330/028—Generation of voltages supplied to electrode drivers in a matrix display other than LCD
Definitions
- Embodiments of the present application relate to display technology, for example, to a driving method, a driving device and a display device for a display panel.
- OLED Organic Light-Emitting Diode
- This application provides a driving method, driving device and display device for a display panel to improve the display effect of the display panel.
- embodiments of the present application provide a driving method for a display panel, including:
- the holding voltage is input to the source of the driving transistor of each sub-pixel of the display panel.
- embodiments of the present application also provide a driving device for a display panel, including:
- a brightness mode determination module configured to determine the brightness mode of the display panel
- a representation value determination module configured to determine a data voltage representation value according to the brightness mode; wherein the corresponding data voltages of the same gray scale in different brightness modes are different, and the data voltage representation value is used to characterize the data voltage level of the brightness mode;
- a holding voltage determination module configured to determine the holding voltage corresponding to the data voltage characterization value according to the data voltage characterization value
- the driving module is configured to input the holding voltage to the source of the driving transistor of each sub-pixel of the display panel in the display holding frame of the current display screen.
- embodiments of the present application further provide a display device, including a display panel and a driving device for the display panel described in any embodiment of the present application.
- Figure 1 is a flow chart of a display panel driving method provided by an embodiment of the present application.
- Figure 2 is a flow chart of yet another display panel driving method provided by an embodiment of the present application.
- Figure 3 is a correspondence relationship between a holding voltage and a data voltage representation value provided by an embodiment of the present application
- Figure 4 is a schematic diagram of display brightness of a display panel in the related art
- Figure 5 is a schematic diagram of the display brightness of the display panel provided by the embodiment of the present application.
- Figure 6 is a schematic diagram of a display panel provided by an embodiment of the present application.
- Figure 7 is a schematic diagram of a driving device for a display panel provided by an embodiment of the present application.
- FIG. 8 is a schematic diagram of a display device provided by an embodiment of the present application.
- LTPO Low Temperature Polycrystalline Oxide, Low Temperature Polycrystalline Oxide
- the data voltage can be stably maintained for multiple frame times, so it can be used in scenarios with a smaller refresh frequency, which can reduce the display device power consumption.
- a dynamic frequency frame skipping scheme is generally used. Based on the original high refresh frequency timing, the display data writing of one frame is retained. This frame is called the data writing frame. In other frames, the data line outputs a fixed voltage and Data is not written to the gate of the drive transistor, and the display screen data is not refreshed (other frames are called display hold frames).
- the data voltage output by the data line in the data writing frame is related to the current display screen, and the data voltage changes as the screen changes.
- the output voltage of the data line is a fixed hold voltage.
- the difference between the data voltage and the hold voltage will affect the difference in current flowing through the organic light-emitting diode in the pixel circuit, resulting in a difference between the brightness of the data-written frame and the display of a picture.
- the brightness of the maintained frame is inconsistent and flickering occurs.
- FIG. 1 is a flow chart of a method of driving a display panel provided by an embodiment of the present application. Referring to Figure 1, the method includes:
- the display panel may include multiple brightness modes, and different data voltages when displaying the same gray scale in different brightness modes are different.
- Different brightness modes correspond to different display brightness ranges.
- the minimum display brightness of different brightness modes is the same, which is 0nit.
- the maximum display brightness of different brightness modes is different.
- the maximum display brightness can be 2nit, 10nit, 50nit, 100nit or 500nit, etc.
- the grayscale ranges of different brightness modes are the same, for example, they can be 0-255 grayscales. Therefore, the same grayscale in different brightness modes corresponds to different brightnesses, and the same grayscale corresponds to different data voltages.
- S120 Determine a data voltage characterization value according to the brightness mode, where the data voltage characterization value is used to characterize the data voltage level of the brightness mode.
- a data voltage representation value can be set for each brightness mode, and different brightness modes correspond to different data voltage representation values.
- This embodiment sets different data voltage representation values for different brightness modes, so that the data voltage representation values can better reflect the data voltage levels of different brightness modes.
- different data voltage representation values correspond to different holding voltages.
- the holding voltages corresponding to different data voltage representation values can be determined according to experiments, and the data voltage representation values and the holding voltages are stored in a database or storage table. After determining the data voltage After characterizing the value, call the corresponding holding voltage directly from the database or storage table.
- the storage table can store the holding voltages corresponding to several data voltage representation values.
- the corresponding holding voltage can be determined according to an interpolation algorithm, such as using a linear Difference or nonlinear interpolation, etc.
- each driving cycle of the display panel includes a data writing frame and a display holding frame.
- the data writing frame includes a data writing phase and a light emitting phase.
- the data writing phase writes the data voltage to the driving transistor gate through the data line.
- the light-emitting stage drives the organic light-emitting diode to emit light.
- the display hold frame also includes a data writing phase and a light-emitting phase.
- the data writing phase of the display holding frame does not write data voltage to the gate of the driving transistor, but writes the holding voltage to the source of the driving transistor through the data line.
- the light-emitting stage drives the organic light-emitting diode to emit light.
- the holding voltage is input to the source of the driving transistor of the sub-pixel during the display holding frame, and the holding voltage in this embodiment is determined according to the data voltage characterization value, which is determined according to the brightness mode of the display panel.
- the holding voltage changes with Changes with the change of the brightness mode, so that the difference between the holding voltage and the data voltage in the holding frame does not change much when the display panel displays different brightness modes, avoiding large changes in the difference between the holding voltage and the data voltage affecting the current flowing through the organic light-emitting diode, so that When the display panel displays the same picture, the brightness of the data writing frame and the brightness of the holding frame tend to be consistent, avoiding flickering and improving the display effect of the display panel when displaying at a smaller frequency.
- determining the brightness mode of the display panel includes:
- the brightness mode of the display panel is determined according to the position of the brightness bar of the display panel, wherein the positions of the brightness bars corresponding to different brightness modes are different.
- the display panel is usually provided with a brightness bar, and adjusting the position of the brightness bar can change the brightness mode. For example, in an environment with relatively low brightness such as indoors, the position of the brightness bar can be adjusted so that the display panel displays the image in a brightness mode with a lower maximum brightness. In an environment with relatively high brightness such as outdoors, the position of the brightness bar can be adjusted. position, so that the display panel displays the picture in a brightness mode with a higher maximum brightness.
- FIG. 2 is a flow chart of yet another display panel driving method provided by an embodiment of the present application. Referring to Figure 2, the method includes :
- the current display screen is the screen currently being displayed by the display panel.
- S122 Determine the data voltage representation value of the current display screen according to the display gray levels of the plurality of sub-pixels and the voltage coefficient corresponding to the brightness mode.
- each brightness mode corresponds to a voltage coefficient
- the voltage coefficients corresponding to different brightness modes are different.
- the voltage coefficients corresponding to the brightness mode are used to represent the corresponding relationship between gray scale and data voltage in the brightness mode.
- determining the data voltage representation value of the current display screen according to the display gray scale of the plurality of sub-pixels and the voltage coefficient corresponding to the brightness mode includes: according to the display gray scale of the plurality of sub-pixels and the brightness mode The product of the corresponding voltage coefficients determines the data voltage representation value of the current display screen.
- the voltage coefficient corresponding to the first display mode is p
- the data voltage representation value corresponding to m gray level is m*p
- the voltage coefficient corresponding to the second display mode is q
- the data voltage representation value corresponding to m gray level is m* q.
- the voltage coefficients of different brightness modes may have a certain relationship.
- the first voltage coefficient when the brightness bar is at the first position is DBV[1]_Gain
- the second voltage coefficient when the brightness bar is at the second position is DBV[n]_Gain.
- the 255 gray level brightness is Lv[1]_255
- the 255 gray level brightness is Lv[n]_255
- Lv[n]_k brightness corresponds to the gray level of the same brightness when the brightness bar is at the first position, then:
- DBV[1]_Gain/DBV[n]_Gain (Lv[1]_255/Lv[n]_255) ⁇ (1/2.2).
- the entire display panel can use a data voltage representation value.
- the data voltage representation value can be determined based on the average gray scale of all sub-pixels of the display panel and the voltage coefficient corresponding to the display mode. It can also be determined based on the voltage coefficient of each pixel unit in the display panel. The average value of the maximum display gray level of at least one sub-pixel is determined by the voltage coefficient corresponding to the display mode.
- the data voltage representation value can also be determined based on the data voltage of the sub-pixel. For example, the data voltage representation value can be determined based on the data voltage of each sub-pixel and the voltage coefficient corresponding to the display mode.
- the display panel can also be divided into multiple areas, and each area uses a data voltage representation value.
- the data voltage representation value of each area is determined based on the data voltage representation value of each sub-pixel in the area.
- the data voltage representation value of each sub-pixel is determined based on the display gray scale of the sub-pixel and the voltage coefficient corresponding to the display mode.
- the data voltage representation value of each area can also be determined based on the maximum display grayscale average value of at least one sub-pixel in each pixel unit in the area and the voltage coefficient corresponding to the display mode.
- the data line is controlled to input the holding voltage to the source of the driving transistor of the sub-pixel during the display holding frame, and the holding voltage in this embodiment is determined based on the data voltage representation value, which is determined based on the multiple sub-pixels in the current display screen.
- the display gray scale and the voltage coefficient corresponding to the display mode are determined.
- the holding voltage changes according to different data voltage representation values, that is, the holding voltage changes with the change of the display screen, so that when the display panel displays different display screens, the holding voltage in the holding frame is consistent with the
- the difference in data voltage does not change much, which prevents the difference between the holding voltage and the data voltage of different display screens from greatly affecting the current flowing through the organic light-emitting diode, so that when the display panel displays the same screen, the brightness of the data writing frame and the brightness of the holding frame tend to be similar. In a consistent manner, the display effect of the display panel is improved.
- FIG. 3 is a correspondence relationship between the holding voltage and the data voltage characterization value provided by the embodiment of the present application.
- the horizontal axis represents different data voltage characterization values
- the vertical axis represents the holding voltage Vskip and the data voltage characterization value Vdata. difference.
- FIG. 4 is a schematic diagram of the display brightness of a display panel in related art
- FIG. 5 is a schematic diagram of the display brightness of a display panel provided by an embodiment of the present application. Referring to Figures 4 and 5, when the display panel of the related art and the display panel of this embodiment display the same picture, the difference between the maximum display brightness Lvmax and the minimum display brightness Lvmin of the display panel in this embodiment is small. When the display panel displays the same picture, the brightness of the data writing frame and the brightness of the holding frame tend to be consistent, and the display effect is better.
- inputting the holding voltage to the source of the driving transistor of each sub-pixel of the display panel during the display holding frame of the current display screen also includes:
- the data voltage corresponding to the sub-pixel is written into the gate of the driving transistor of the sub-pixel.
- the writing phase of the data writing frame and the display holding frame may include an initialization phase before the writing phase.
- the initialization phase of the data writing frame is used to initialize the gate of the driving transistor and the anode of the organic light emitting diode.
- the initialization of the display holding frame stage is used to initialize the anode of the organic light-emitting diode.
- FIG. 6 is a schematic diagram of a display panel provided by an embodiment of the present application.
- the display panel includes multiple sub-display areas 10, and at least one pixel unit 110 is provided in the sub-display area 10.
- Each pixel unit 110 includes at least one sub-pixel 11;
- Determining the data voltage representation value of the current display screen according to the voltage coefficient corresponding to the display gray scale and the brightness mode includes:
- determining the corresponding holding voltage according to the data voltage representation value includes:
- the holding voltage of each sub-display area is determined according to the data voltage representation value of each sub-display area.
- Each sub-display area 10 may include multiple pixel units 110, and each pixel unit 110 may include sub-pixels 11 of at least three different emitting colors.
- each pixel unit 110 may include a red sub-pixel, a green sub-pixel and a Blue subpixel.
- the maximum display gray level among the display gray levels of all sub-pixels 11 in each pixel unit 110 is first determined, that is, the maximum display gray level of all the sub-pixels 11 in each pixel unit 110 is determined. For example, if the gray level of the red sub-pixel in a pixel unit 110 is 100, the gray level of the green sub-pixel is 103, and the gray level of the blue sub-pixel is 109, then the maximum display gray level of the pixel unit 110 is 109. Then calculate the average value of the maximum display gray scale of all pixel units in each sub-display area 10 to obtain the first gray-scale average value of the sub-display area, and combine the first gray-scale average value of each sub-display area 10 with the voltage corresponding to the brightness mode.
- the coefficients are multiplied to obtain the data voltage representation value of each sub-display area 10, and the corresponding holding voltage is determined according to the data voltage representation value. Finally, in the display holding frame, the holding voltage is input to the source of the driving transistor of the sub-pixel 11 in the corresponding sub-display area 10 through the data line 20 .
- This embodiment partitions the display panel, calculates the first grayscale average according to the maximum display grayscale of each pixel unit in each sub-display area, and then determines the data voltage representation value and determines the holding voltage, so that each sub-display area
- the holding voltage is more consistent with the actual display screen of the sub-display area, and the holding voltage is more consistent with the data voltage of the sub-display area, so as to avoid the large difference between the holding voltage and the data voltage of different display screens from affecting the current flowing through the organic light-emitting diode.
- the display panel displays the same picture, the brightness of the data writing frame and the brightness of the holding frame tend to be consistent, thereby improving the display effect of the display panel.
- the display panel includes a plurality of data lines 20, and the data lines 20 are configured to input the holding voltage;
- each sub-display area 10 uses the same holding voltage, the same data line 20 only needs to be Outputting a holding voltage eliminates the need to frequently change the output voltage, thereby reducing the power consumption of the IC.
- the display panel includes a plurality of pixel units 110, each of the pixel units 110 includes at least one sub-pixel 11, and the data of the current display screen is determined according to the voltage coefficient corresponding to the display gray scale and the brightness mode.
- Voltage characterization values including:
- the data voltage representation value of the display panel is determined according to the second grayscale average value and the voltage coefficient corresponding to the brightness mode.
- This embodiment calculates the second grayscale average based on the average of the maximum display grayscales of all pixel units in the display panel, and determines the data voltage representation value based on the second grayscale average and the voltage coefficient, thereby determining the holding voltage for all sub-pixels of the display panel.
- all data lines only need to output the same holding voltage in the holding frame of a display screen, which not only ensures low power consumption, but also reduces the amount of calculations.
- each driving cycle includes one data writing frame and N display holding frames, and the duration of the display holding frame is equal to the duration of the data writing frame, where N is greater than or equal to 2.
- the value of N can be determined according to the displayed frequency. For example, when the display panel is in high-frequency display mode, the duration of one frame is 8.3ms, that is, the duration of one data writing frame or one display hold frame is 8.3ms. If it is necessary to use high-frequency display to achieve a smaller frequency display of 10HZ , then 12 high-frequency frames are needed to implement, one data writing frame and 11 display holding frames are needed, so the value of N is 11.
- determining the brightness mode of the display panel includes:
- the brightness mode of the display panel is determined according to the position of the brightness bar of the display panel, wherein the positions of the brightness bars corresponding to different brightness modes are different.
- the display panel is usually provided with a brightness bar, and adjusting the position of the brightness bar can change the brightness mode.
- the position of the brightness bar can be adjusted so that the display panel displays the image in a brightness mode with a lower maximum brightness.
- the position of the brightness bar can be adjusted. position, so that the display panel displays the picture in a brightness mode with a higher maximum brightness.
- the brightness mode of the display panel can be determined by obtaining the brightness position of the display panel.
- FIG. 7 is a schematic diagram of a driving device for a display panel provided by an embodiment of the present application. Referring to Figure 7, the driving device includes:
- the brightness mode determination module 210 is configured to determine the brightness mode of the display panel; wherein the data voltages corresponding to the same grayscale in different brightness modes are different,
- the characterization value determination module 220 is configured to determine the data voltage characterization value according to the brightness mode; wherein the data voltage characterization value is used to characterize the data voltage level of the brightness mode;
- the holding voltage determination module 230 is configured to determine the holding voltage corresponding to the data voltage characterization value according to the data voltage characterization value;
- the driving module 240 is configured to input the holding voltage to the source of the driving transistor of each sub-pixel of the display panel during the display holding frame of the current display screen.
- the characterization value determination module 220 includes:
- the display grayscale acquisition submodule is set to obtain the display grayscale of multiple sub-pixels in the current display screen
- the representation value determination sub-module is configured to determine the data voltage representation value of the current display screen according to the display gray scale of the plurality of sub-pixels and the voltage coefficient corresponding to the brightness mode.
- the display panel includes multiple sub-display areas, each sub-display area is provided with at least one pixel unit, and each pixel unit includes at least one sub-pixel;
- the characterization value determination sub-module includes:
- the first grayscale determination unit is configured to determine the maximum display grayscale of the at least one sub-pixel of each pixel unit in each sub-display area of the display panel, and obtain the maximum display grayscale of each of the pixel units;
- the first average calculation unit is configured to calculate the average of the maximum display gray scale of all pixel units in each sub-display area, and obtain the first gray-scale average of the sub-display area;
- a first representation value determination unit configured to determine the data voltage representation value of each sub-display area based on the first grayscale average value of each sub-display area and the voltage coefficient corresponding to the brightness mode
- the holding voltage determination module 230 is configured to determine the holding voltage of each sub-display area according to the data voltage representation value of each sub-display area.
- the display panel includes a plurality of data lines, and the data lines are configured to input the holding voltage;
- Sub-pixels adjacent along the first direction are electrically connected to the same data line, a plurality of the sub-display areas are arranged along the second direction, and the first direction and the second direction cross each other.
- the display panel includes a plurality of pixel units, each of the pixel units includes at least one sub-pixel; the representation value determination sub-module includes:
- the second grayscale determination unit is configured to determine the maximum display grayscale of the at least one sub-pixel of each pixel unit, and obtain the maximum display grayscale of each pixel unit;
- the second average calculation unit is configured to calculate the average of the maximum display gray scale of the plurality of pixel units of the display panel, and obtain the second gray scale average;
- the second characterization value determination unit is configured to determine the data voltage characterization value of the display panel according to the second grayscale average value and the voltage coefficient corresponding to the brightness mode.
- the brightness mode determination module is set to:
- the brightness mode of the display panel is determined according to the position of the brightness bar of the display panel, wherein the positions of the brightness bars corresponding to different brightness modes are different.
- the representation value determination sub-module is configured to determine the data voltage representation value of the current display screen according to the product of the display gray scale of the plurality of sub-pixels and the voltage coefficient corresponding to the brightness mode.
- the driving device also includes:
- the data writing module is configured to input the holding voltage to the source of the driving transistor of each sub-pixel of the display panel in the display holding frame of the current display screen, and to write the data corresponding to the sub-pixel in the data writing frame of the current display screen.
- the data voltage is written to the gate of the drive transistor of the sub-pixel.
- each driving cycle includes one data writing frame and N display holding frames, and the duration of each display holding frame is equal to the duration of the data writing frame, where N is greater than or equal to 2.
- the display panel driving device provided in this embodiment and the display panel driving method provided in any embodiment of this application belong to the same inventive concept.
- driving method for technical details that are not detailed in this embodiment, please refer to the display panel provided in any embodiment of this application.
- FIG. 8 is a schematic diagram of a display device provided by an embodiment of the present application.
- the display device 100 includes a display panel 200 and a display device as described in any embodiment of the present application.
- the display device 100 may be an electronic device such as a mobile phone or a tablet.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
一种显示面板的驱动方法、驱动装置及显示装置。显示面板的驱动方法包括：（S110）确定显示面板的亮度模式，不同亮度模式下相同灰阶对应的数据电压不同；（S120）根据亮度模式确定数据电压表征值，数据电压表征值用于表征亮度模式的数据电压水平；（S130）根据数据电压表征值确定数据电压表征值对应的保持电压；（S140）在当前显示画面的显示保持帧将保持电压输入到显示面板每一子像素的驱动晶体管的源极。
Description
本申请要求在2022年6月23日提交中国专利局、申请号为202210719831.9的中国专利申请的优先权，该申请的全部内容通过引用结合在本申请中。
本申请实施例涉及显示技术，例如涉及一种显示面板的驱动方法、驱动装置及显示装置。
有机发光二极管(OrganicLight-Emitting Diode，OLED)面板具有自发光、驱动电压低、发光效率高、响应速度快、轻薄、对比度高等优点，越来越广泛地被应用于手机、电脑等具有显示功能的装置中。
当前OLED显示产品显示效果不佳。
发明内容
本申请提供一种显示面板的驱动方法、驱动装置及显示装置，以提升显示面板的显示效果。
第一方面，本申请实施例提供了一种显示面板的驱动方法，包括：
确定显示面板的亮度模式；其中，不同所述亮度模式下相同灰阶对应的数据电压不同；
根据所述亮度模式确定数据电压表征值；其中，数据电压表征值用于表征亮度模式的数据电压水平；
根据所述数据电压表征值确定所述数据电压表征值对应的保持电压；
在当前显示画面的显示保持帧将所述保持电压输入到显示面板每一子像素的驱动晶体管的源极。
第二方面，本申请实施例还提供了一种显示面板的驱动装置，包括：
亮度模式确定模块，设置为确定显示面板的亮度模式；
表征值确定模块，设置为根据所述亮度模式确定数据电压表征值；其中，不同所述亮度模式下相同灰阶的对应的数据电压不同，数据电压表征值用于表征亮度模式的数据电压水平；
保持电压确定模块，设置为根据所述数据电压表征值确定所述数据电压表征值对应的保持电压；
驱动模块，设置为在当前显示画面的显示保持帧所述保持电压输入到显示面板每一子像素的驱动晶体管的源极。
第三方面，本申请实施例还提供了一种显示装置，包括显示面板和本申请任意实施例所述的显示面板的驱动装置。
图1是本申请实施例提供的一种显示面板的驱动方法的流程图；
图2是本申请实施例提供的又一种显示面板的驱动方法的流程图；
图3是本申请实施例提供的一种保持电压和数据电压表征值之间的对应关系；
图4是相关技术中的显示面板的显示亮度示意图；
图5是本申请实施例提供的显示面板的显示亮度的示意图；
图6是本申请实施例提供的一种显示面板的示意图；
图7是本申请实施例提供的一种显示面板的驱动装置的示意图；
图8是本申请实施例提供的一种显示装置的示意图。
下面结合附图和实施例对本申请作详细说明。
LTPO(Low Temperature Polycrystalline Oxide，低温多晶氧化物)类型的 OLED显示面板，由于驱动晶体管的高阻抗特性，数据电压可稳定保持多帧时间，从而应用于较小的刷新频率的场景，可以降低显示器件的功耗。LTPO应用于该场景时一般用动态频率跳帧方案，在原本高刷新频率时序基础上，保留一帧的显示数据写入，该帧称为数据写入帧，其他帧中数据线输出固定电压且不对驱动晶体管的栅极进行数据写入，显示画面数据不刷新(其他帧称为显示保持帧)。在数据写入帧数据线输出的数据电压与当前显示画面有关系，数据电压随着画面变化而变化。显示保持帧时的数据线输出电压为固定的保持电压，数据电压与保持电压的差异会影响到像素电路流过有机发光二极管的电流差异，从而导致在显示一个画面时数据写入帧的亮度与保持帧的亮度不一致，出现闪烁现象。
本申请实施例提供了一种显示面板的驱动方法，图1是本申请实施例提供的一种显示面板的驱动方法的流程图，参考图1，该方法包括：
S110、确定显示面板的亮度模式；其中，不同所述亮度模式下相同灰阶对应的数据电压不同。
其中，显示面板可以包括多种亮度模式，不同亮度模式下显示相同灰阶时的数据电压不同。不同亮度模式对应的显示亮度范围不同，不同亮度模式的最低显示亮度相同，都是0nit，不同亮度模式的最大显示亮度不同。例如最大显示亮度可以为2nit、10nit、50nit、100nit或500nit等。不同亮度模式的灰阶范围相同，例如都可以为0-255灰阶，因此不同亮度模式下同一灰阶对应的亮度不同，同一灰阶对应的数据电压不同。
S120、根据所述亮度模式确定数据电压表征值，其中，数据电压表征值用于表征亮度模式的数据电压水平。
示例性的，可以每一亮度模式设置一数据电压表征值，不同亮度模式对应不同的数据电压表征值。本实施例对不同的亮度模式设置不同的数据电压表征值，使得数据电压表征值更能体现不同亮度模式的数据电压水平。
S130、根据所述数据电压表征值确定对应的保持电压。
示例性的，不同的数据电压表征值对应不同的保持电压，可以根据实验确定不同数据电压表征值对应的保持电压，将数据电压表征值与保持电压存储到数据库或存储表里，在确定数据电压表征值后，直接从数据库或存储表里调用对应的保持电压。示例性的，存储表里可以存储几个数据电压表征值对应的保持电压，当某一保持电压的数据电压表征值未存储在表中时，可以根据插值算法确定对应的保持电压，如采用线性差值或非线性插值等。
S140、在当前显示画面的显示保持帧将所述保持电压输入到显示面板每一子像素的驱动晶体管的源极。
示例性的，显示面板的每一驱动周期包括数据写入帧和显示保持帧，数据写入帧包括数据写入阶段和发光阶段，数据写入阶段通过数据线将数据电压写入驱动晶体管栅极，发光阶段驱动有机发光二极管发光。显示保持帧也包括数据写入阶段和发光阶段，显示保持帧的数据写入阶段不向驱动晶体管的栅极写入数据电压，而是通过数据线将保持电压写入到驱动晶体管的源极，发光阶段驱动有机发光二极管发光。
本实施例在显示保持帧将保持电压输入到子像素的驱动晶体管的源极，并且本实施例的保持电压根据数据电压表征值确定，数据电压表征值根据显示面板的亮度模式确定，保持电压随亮度模式的变化而变化，使得显示面板显示不同亮度模式时保持帧中保持电压与数据电压的差异的变化不大，避免保持电压与数据电压差异变化较大影响流过有机发光二极管的电流，使显示面板显示同一画面时数据写入帧的亮度与保持帧的亮度趋于一致，避免产生闪烁，提升显示面板在以较小的频率显示时的显示效果。
可选的，确定显示面板的亮度模式包括：
根据显示面板的亮度条的位置确定显示面板的亮度模式，其中，不同所述亮度模式对应的亮度条的位置不同。
示例性的，显示面板中通常设置有亮度条，调节亮度条的位置可以改变亮度模式。例如，在室内等环境亮度比较低的环境中，可以调节亮度条的位置， 使显示面板以最大亮度较低的亮度模式显示画面，在室外等环境亮度比较高的环境中，可以调节亮度条的位置，使显示面板以最大亮度较高的亮度模式显示画面。
在上述实施例的基础上，本实施例还提供了一种显示面板的驱动方法，图2是本申请实施例提供的又一种显示面板的驱动方法的流程图，参考图2，该方法包括：
S110、确定显示面板的亮度模式；其中，不同所述亮度模式下相同灰阶对应的数据电压不同。
S121、获取当前显示画面中多个子像素的显示灰阶。
其中，当前显示画面即显示面板当前正在显示的画面。
S122、根据所述多个子像素的显示灰阶和所述亮度模式对应的电压系数确定当前显示画面的数据电压表征值。
示例性的，每一亮度模式对应一电压系数，不同亮度模式对应的电压系数不同，亮度模式对应的电压系数用于表示该亮度模式下灰阶与数据电压的对应关系。
可选的，根据所述多个子像素的显示灰阶和所述亮度模式对应的电压系数确定当前显示画面的数据电压表征值，包括：根据所述多个子像素的显示灰阶和所述亮度模式对应的电压系数的乘积确定所述当前显示画面的数据电压表征值。例如，第一显示模式对应的电压系数为p,m灰阶对应的数据电压表征值为m*p，第二显示模式对应的电压系数为q，m灰阶对应的数据电压表征值为m*q。
此外，不同亮度模式的电压系数可以具有一定关系。示例性的，亮度条在第一位置时的第一电压系数为DBV[1]_Gain，亮度条在第二位置时的第二电压系数为DBV[n]_Gain。假设亮度条在第一位置时255灰阶亮度为Lv[1]_255，亮度条在第二位置时255灰阶亮度为Lv[n]_255，则亮度条在第二位置时k灰阶亮度(以gamma为2.2为例)为：Lv[n]_k＝Lv[n]_255*(k/255)^2.2。
Lv[n]_k亮度对应亮度条在第一位置时相同亮度的灰阶为j，则：
j灰阶的亮度Lv[1]_j＝Lv[1]_255*(j/255)^2.2，因为Lv[1]_j＝Lv[n]_k，则
Lv[n]_255*(k/255)^2.2＝Lv[1]_255*(j/255)^2.2，则：
j＝k*(Lv[n]_255/Lv[1]_255)^(1/2.2)，
又由于相同亮度时的数据电压相同，则：j*DBV[1]_Gain＝k*DBV[n]_Gain；
根据上述公式，最终得到：
DBV[1]_Gain/DBV[n]_Gain＝(Lv[1]_255/Lv[n]_255)^(1/2.2)。
另外，可以整个显示面板采用一个数据电压表征值，该数据电压表征值可以根据显示面板所有子像素的灰阶的均值和显示模式对应的电压系数确定，还可以根据显示面板中每一像素单元中至少一个子像素的最大显示灰阶的均值和显示模式对应的电压系数确定。数据电压表征值也可以根据子像素的数据电压确定，例如可以根据每个子像素的数据电压和显示模式对应的电压系数确定数据电压表征值。
另外，还可以将显示面板划分为多个区域，每一区域采用一个数据电压表征值。每一区域的数据电压表征值根据该区域每一子像素的数据电压表征值确定，每一子像素的数据电压表征值根据该子像素的显示灰阶以及显示模式对应的电压系数确定。每一区域的数据电压表征值还可以根据该区域中每一像素单元中至少一个子像素的最大显示灰阶均值和显示模式对应的电压系数确定。
S130、根据所述数据电压表征值确定对应的保持电压。
S140、在当前显示画面的显示保持帧将所述保持电压输入到显示面板每一子像素的驱动晶体管的源极。
本实施例在显示保持帧控制数据线将保持电压输入到子像素的驱动晶体管的源极，并且本实施例的保持电压根据数据电压表征值确定，数据电压表征值根据当前显示画面中多个子像素的显示灰阶以及显示模式对应的电压系数确定，保持电压根据不同的数据电压表征值变化，即保持电压随着显示画面的变化而变化，使得显示面板显示不同显示画面时保持帧中保持电压与数据电压的差异的变化不大，避免不同显示画面保持电压与数据电压差异变化较大影响流过有 机发光二极管的电流，使显示面板显示同一画面时数据写入帧的亮度与保持帧的亮度趋于一致，提升显示面板的显示效果。
图3是本申请实施例提供的一种保持电压和数据电压表征值之间的对应关系，参考图3，横轴表示不同的数据电压表征值，纵轴表示保持电压Vskip和数据电压表征值Vdata的差值。图4是相关技术中的显示面板的显示亮度示意图，图5是本申请实施例提供的显示面板的显示亮度的示意图。参考图4和图5，相关技术的显示面板和本实施例的显示面板在显示相同画面时，本实施例中显示面板的最大显示亮度Lvmax与最小显示亮度Lvmin的差值较小，本实施例的显示面板显示同一画面时数据写入帧的亮度与保持帧的亮度趋于一致，显示效果较好。
可选的，在当前显示画面的显示保持帧将所述保持电压输入到显示面板每一子像素的驱动晶体管的源极，之前还包括：
在当前显示画面的数据写入帧将子像素对应的数据电压写入所述子像素的驱动晶体管的栅极。
其中，数据写入帧和显示保持帧的写入阶段之前均可以包括初始化阶段，数据写入帧的初始化阶段用于对驱动晶体管的栅极以及有机发光二极管的阳极进行初始化，显示保持帧的初始化阶段用于对有机发光二极管的阳极进行初始化。
图6是本申请实施例提供的一种显示面板的示意图，可选的，参考图6，显示面板包括多个子显示区10，子显示区10中设置有至少一个像素单元110，每一像素单元110包括至少一个子像素11；
根据所述显示灰阶和所述亮度模式对应的电压系数确定当前显示画面的数据电压表征值，包括：
确定显示面板每一子显示区中每一像素单元的所述至少一个子像素的最大显示灰阶，得到每一像素单元的最大显示灰阶；
计算每一子显示区中所有像素单元的最大显示灰阶的均值，得到子显示区 的第一灰阶均值；
根据每一子显示区的所述第一灰阶均值和所述亮度模式对应的电压系数确定每一子显示区的数据电压表征值；
相应的，根据所述数据电压表征值确定对应的保持电压，包括：
根据每一子显示区的数据电压表征值确定每一子显示区的保持电压。
其中，每一子显示区10中可以包括多个像素单元110，每一像素单元110可以包括至少三种不同发光颜色的子像素11，例如每一像素单元110包括红色子像素、绿色子像素和蓝色子像素。
示例性的，首先确定每一像素单元110中所有子像素11的显示灰阶中最大的显示灰阶，即确定每一像素单元110的所有子像素11的最大显示灰阶。示例性的，一像素单元110中红色子像素的灰阶为100，绿色子像素的灰阶为103，蓝色子像素的灰阶为109，则该像素单元110的最大显示灰阶为109。然后计算每一子显示区10中所有像素单元的最大显示灰阶的均值，得到子显示区的第一灰阶均值，将每一子显示区10的第一灰阶均值和亮度模式对应的电压系数相乘得到每一子显示区10的数据电压表征值，根据该数据电压表征值确定对应的保持电压。最后，在显示保持帧中通过数据线20将保持电压输入到对应的子显示区10中的子像素11的驱动晶体管的源极。
本实施例通过对显示面板进行分区，根据每一子显示区中每个像素单元的最大显示灰阶计算第一灰阶均值，进而确定数据电压表征值，确定保持电压，使得每一子显示区的保持电压更符合该子显示区的实际显示画面，保持电压与该子显示区的数据电压更为相符，避免不同显示画面保持电压与数据电压差异变化较大影响流过有机发光二极管的电流，使显示面板显示同一画面时数据写入帧的亮度与保持帧的亮度趋于一致，提升显示面板的显示效果。
可选的，继续参考图6,显示面板包括多条数据线20，数据线20设置为输入所述保持电压；
沿第一方向X相邻的子像素11与同一数据线20电连接，多个子显示区10 沿第二方向Y排列，第一方向X和第二方向Y相互交叉。
这样设置，每一子显示区10中沿第一方向X依次排列的子像素11采用同一数据线，由于每一子显示区10采用同一保持电压，则同一数据线20在显示保持帧中只需输出一种保持电压，无需频繁变化输出的电压，从而降低了IC的功耗。
可选的，所述显示面板包括多个像素单元110，每一所述像素单元110包括至少一个子像素11，根据所述显示灰阶和所述亮度模式对应的电压系数确定当前显示画面的数据电压表征值，包括：
确定每一像素单元的所述至少一个子像素的最大显示灰阶，得到每一像素单元的最大显示灰阶；
计算显示面板所述多个像素单元的最大显示灰阶的均值，得到第二灰阶均值；
根据所述第二灰阶均值和所述亮度模式对应的电压系数确定显示面板的数据电压表征值。
本实施例根据显示面板中所有像素单元的最大显示灰阶的均值计算第二灰阶均值，并根据第二灰阶均值和电压系数确定数据电压表征值，从而确定保持电压，显示面板所有子像素采用同一保持电压，所有数据线在一个显示画面的保持帧仅需输出同一保持电压，在保证功耗较低的同时，降低了运算量。
可选的，每一驱动周期包括一个数据写入帧和N个显示保持帧，所述显示保持帧的时长等于所述数据写入帧的时长，其中，N大于或等于2。其中，N的数值可以根据显示的频率确定。例如，显示面板在高频显示模式下，一帧的时长为8.3ms，即一个数据写入帧或一个显示保持帧的时长为8.3ms，若需要用高频显示实现10HZ的较小频率的显示，则需要12个高频帧实现，则需要一个数据写入帧和11个显示保持帧，则N的数值为11。
可选的，确定显示面板的亮度模式包括：
根据显示面板的亮度条的位置确定显示面板的亮度模式，其中，不同所述 亮度模式对应的亮度条的位置不同。
示例性的，显示面板中通常设置有亮度条，调节亮度条的位置可以改变亮度模式。例如，在室内等环境亮度比较低的环境中，可以调节亮度条的位置，使显示面板以最大亮度较低的亮度模式显示画面，在室外等环境亮度比较高的环境中，可以调节亮度条的位置，使显示面板以最大亮度较高的亮度模式显示画面。可以通过获取显示板的亮度位置确定显示面板的亮度模式。
本申请实施例还提供一种显示面板的驱动装置，图7是本申请实施例提供的一种显示面板的驱动装置的示意图，参考图7，该驱动装置包括：
亮度模式确定模块210，设置为确定显示面板的亮度模式；其中，不同所述亮度模式下相同灰阶对应的数据电压不同，
表征值确定模块220，设置为根据所述亮度模式确定数据电压表征值；其中，数据电压表征值用于表征亮度模式的数据电压水平；
保持电压确定模块230，设置为根据所述数据电压表征值确定所述数据电压表征值对应的保持电压；
驱动模块240，设置为在当前显示画面的显示保持帧将所述保持电压输入到显示面板每一子像素的驱动晶体管的源极。
可选的，表征值确定模块220包括：
显示灰阶获取子模块，设置为获取当前显示画面中多个子像素的显示灰阶；
表征值确定子模块，设置为根据所述多个子像素的显示灰阶和所述亮度模式对应的电压系数确定当前显示画面的数据电压表征值。
可选的，显示面板包括多个子显示区，每个子显示区中设置有至少一个像素单元，每一所述像素单元包括至少一个子像素；表征值确定子模块包括：
第一灰阶确定单元，设置为确定显示面板每一子显示区中每一像素单元的所述至少一个子像素的最大显示灰阶，得到每一所述像素单元的最大显示灰阶；
第一均值计算单元，设置为计算每一子显示区中所有像素单元的最大显示 灰阶的均值，得到所述子显示区的第一灰阶均值；
第一表征值确定单元，设置为根据每一子显示区的所述第一灰阶均值和所述亮度模式对应的电压系数确定每一子显示区的数据电压表征值；
相应的，保持电压确定模块230设置为根据每一子显示区的数据电压表征值确定每一子显示区的保持电压。
可选的，所述显示面板包括多条数据线，所述数据线设置为输入所述保持电压；
沿第一方向相邻的子像素与同一数据线电连接，多个所述子显示区沿第二方向排列，所述第一方向和所述第二方向相互交叉。
可选的，所述显示面板包括多个像素单元，每一所述像素单元包括至少一个子像素；表征值确定子模块包括：
第二灰阶确定单元，设置为确定每一像素单元的所述至少一个子像素的最大显示灰阶，得到所述每一像素单元的最大显示灰阶；
第二均值计算单元，设置为计算显示面板所述多个像素单元的最大显示灰阶的均值，得到第二灰阶均值；
第二表征值确定单元，设置为根据所述第二灰阶均值和所述亮度模式对应的电压系数确定显示面板的数据电压表征值。
可选的，亮度模式确定模块设置为：
根据显示面板的亮度条的位置确定显示面板的亮度模式，其中，不同所述亮度模式对应的亮度条的位置不同。
可选的，表征值确定子模块设置为根据所述多个子像素的显示灰阶和所述亮度模式对应的电压系数的乘积确定所述当前显示画面的数据电压表征值。
可选的，所述驱动装置还包括：
数据写入模块，设置为在当前显示画面的显示保持帧将所述保持电压输入到显示面板每一子像素的驱动晶体管的源极之前，在当前显示画面的数据写入帧将子像素对应的数据电压写入所述子像素的驱动晶体管的栅极。
可选的，每一驱动周期包括一个数据写入帧和N个显示保持帧，每个显示保持帧的时长等于所述数据写入帧的时长，其中，N大于或等于2。
本实施例提供的显示面板的驱动装置与本申请任意实施例提供的显示面板的驱动方法属于相同的发明构思，未在本实施例详尽的技术细节详见本申请任意实施例提供的显示面板的驱动方法。
本申请实施例还提供了一种显示装置，图8是本申请实施例提供的一种显示装置的示意图，参考图8，该显示装置100包括显示面板200和本申请任意实施例所述的显示面板的驱动装置300。显示装置100可以为手机、平板等电子设备。
Claims (10)
- 一种显示面板的驱动方法，包括：确定显示面板的亮度模式；其中，不同所述亮度模式下相同灰阶对应的数据电压不同；根据所述亮度模式确定数据电压表征值；其中，数据电压表征值用于表征亮度模式的数据电压水平；根据所述数据电压表征值确定所述数据电压表征值对应的保持电压；在当前显示画面的显示保持帧将所述保持电压输入到显示面板每一子像素的驱动晶体管的源极。
- 根据权利要求1所述的方法，其中，所述根据所述亮度模式确定数据电压表征值，包括：获取当前显示画面中多个子像素的显示灰阶；根据所述多个子像素的显示灰阶和所述亮度模式对应的电压系数确定当前显示画面的数据电压表征值。
- 根据权利要求2所述的方法，其中，所述显示面板包括多个子显示区，所述子显示区中设置有至少一个像素单元，每一所述像素单元包括至少一个子像素；所述根据所述多个子像素的显示灰阶和所述亮度模式对应的电压系数确定当前显示画面的数据电压表征值，包括：确定所述显示面板每一所述子显示区中每一所述像素单元的所述至少一个子像素的最大显示灰阶，得到每一所述像素单元的最大显示灰阶；计算每一所述子显示区中所有所述像素单元的最大显示灰阶的均值，得到所述每一子显示区的第一灰阶均值；根据每一子显示区的所述第一灰阶均值和所述亮度模式对应的电压系数确定所述每一子显示区的数据电压表征值；相应的，所述根据所述数据电压表征值确定对应的保持电压，包括：根据所述每一子显示区的数据电压表征值确定所述每一子显示区的保持电 压。
- 根据权利要求3所述的方法，其中：所述显示面板包括多条数据线，所述多条数据线设置为输入所述保持电压；沿第一方向相邻的子像素与同一数据线电连接，多个所述子显示区沿第二方向排列，所述第一方向和所述第二方向相互交叉。
- 根据权利要求2所述的方法，其中，所述显示面板包括多个像素单元，每一所述像素单元包括至少一个子像素；所述根据所述多个子像素的显示灰阶和所述亮度模式对应的电压系数确定当前显示画面的数据电压表征值，包括：确定每一像素单元的所述至少一个子像素的最大显示灰阶，得到所述每一像素单元的最大显示灰阶；计算所述显示面板所述多个像素单元的最大显示灰阶的均值，得到第二灰阶均值；根据所述第二灰阶均值和所述亮度模式对应的电压系数确定所述显示面板的数据电压表征值。
- 根据权利要求1所述的方法，其中，所述确定显示面板的亮度模式包括：根据显示面板的亮度条的位置确定显示面板的亮度模式，其中，不同所述亮度模式对应的亮度条的位置不同。
- 根据权利要求2所述的方法，其中，所述根据所述多个子像素的显示灰阶和所述亮度模式对应的电压系数确定当前显示画面的数据电压表征值，包括：根据所述多个子像素的显示灰阶和所述亮度模式对应的电压系数的乘积确定所述当前显示画面的数据电压表征值。
- 根据权利要求1所述的方法，其中，每一驱动周期包括一个数据写入帧和N个显示保持帧，每个显示保持帧的时长等于所述数据写入帧的时长，其中，N大于或等于2；所述在当前显示画面的显示保持帧将所述保持电压输入到显示面板每一子 像素的驱动晶体管的源极之前，还包括：在当前显示画面的数据写入帧将子像素对应的数据电压写入所述子像素的驱动晶体管的栅极。
- 一种显示面板的驱动装置，包括：亮度模式确定模块，设置为确定显示面板的亮度模式；表征值确定模块，设置为根据所述亮度模式确定数据电压表征值；其中，不同所述亮度模式下相同灰阶的对应的数据电压不同，数据电压表征值用于表征亮度模式的数据电压水平；保持电压确定模块，设置为根据所述数据电压表征值确定所述数据电压表征值对应的保持电压；驱动模块，设置为在当前显示画面的显示保持帧所述保持电压输入到显示面板每一子像素的驱动晶体管的源极。
- 一种显示装置，包括显示面板和权利要求9所述的显示面板的驱动装置。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020247004333A KR20240031383A (ko) | 2022-06-23 | 2022-11-08 | 디스플레이 패널의 구동 방법, 구동 장치 및 디스플레이 장치 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210719831.9 | 2022-06-23 | ||
| CN202210719831.9A CN115064118B (zh) | 2022-06-23 | 2022-06-23 | 显示面板的驱动方法、驱动装置及显示装置 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2023245957A1 true WO2023245957A1 (zh) | 2023-12-28 |
Family
ID=83202577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2022/130608 WO2023245957A1 (zh) | 2022-06-23 | 2022-11-08 | 显示面板的驱动方法、驱动装置及显示装置 |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR20240031383A (zh) |
| CN (1) | CN115064118B (zh) |
| WO (1) | WO2023245957A1 (zh) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115064118B (zh) * | 2022-06-23 | 2023-06-02 | 合肥维信诺科技有限公司 | 显示面板的驱动方法、驱动装置及显示装置 |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20200111418A1 (en) * | 2018-10-04 | 2020-04-09 | Samsung Display Co., Ltd. | Display apparatus and method of driving display panel using the same |
| CN111341269A (zh) * | 2018-12-18 | 2020-06-26 | 三星显示有限公司 | 显示设备和驱动显示面板的方法 |
| CN111710299A (zh) * | 2020-06-30 | 2020-09-25 | 厦门天马微电子有限公司 | 一种显示面板、其驱动方法及显示装置 |
| CN111710300A (zh) * | 2020-06-30 | 2020-09-25 | 厦门天马微电子有限公司 | 一种显示面板、驱动方法及显示装置 |
| US20200349879A1 (en) * | 2019-05-02 | 2020-11-05 | Samsung Display Co., Ltd. | Display apparatus and method of driving the same |
| CN113012643A (zh) * | 2021-03-01 | 2021-06-22 | 上海天马微电子有限公司 | 显示面板及其驱动方法和显示装置 |
| CN113793569A (zh) * | 2021-10-27 | 2021-12-14 | 京东方科技集团股份有限公司 | 显示面板的控制方法、装置、设备和存储介质 |
| US20220068202A1 (en) * | 2020-08-27 | 2022-03-03 | Samsung Display Co., Ltd. | Display apparatus and method of driving display panel of the same |
| CN114863878A (zh) * | 2022-05-23 | 2022-08-05 | 厦门天马显示科技有限公司 | 显示面板的驱动方法、显示面板及显示装置 |
| CN115064118A (zh) * | 2022-06-23 | 2022-09-16 | 合肥维信诺科技有限公司 | 显示面板的驱动方法、驱动装置及显示装置 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102218779B1 (ko) * | 2014-07-04 | 2021-02-19 | 엘지디스플레이 주식회사 | Oled 표시 장치 |
| KR102555125B1 (ko) * | 2018-09-20 | 2023-07-14 | 삼성디스플레이 주식회사 | 표시 장치 |
| KR20200057204A (ko) * | 2018-11-16 | 2020-05-26 | 엘지디스플레이 주식회사 | 데이터 구동 회로, 디스플레이 패널 및 디스플레이 장치 |
| KR20200093745A (ko) * | 2019-01-28 | 2020-08-06 | 삼성디스플레이 주식회사 | 표시 장치 및 이를 이용한 표시 패널의 구동 방법 |
| CN112509519A (zh) * | 2020-10-20 | 2021-03-16 | 厦门天马微电子有限公司 | 一种显示面板的驱动方法及显示装置 |
| CN112634832B (zh) * | 2020-12-31 | 2022-05-31 | 武汉天马微电子有限公司 | 一种显示面板、驱动方法及显示装置 |
| CN113990244B (zh) * | 2021-11-10 | 2023-12-12 | 京东方科技集团股份有限公司 | 显示面板的驱动方法，显示驱动电路及显示装置 |
| CN114038429B (zh) * | 2021-11-24 | 2023-06-13 | 京东方科技集团股份有限公司 | 显示面板及驱动方法、显示装置 |
| CN114420032B (zh) * | 2021-12-31 | 2023-09-19 | 湖北长江新型显示产业创新中心有限公司 | 显示面板、集成芯片和显示装置 |
| CN114420034B (zh) * | 2022-03-07 | 2024-01-16 | 合肥维信诺科技有限公司 | 显示面板及其驱动方法、显示装置 |
-
2022
- 2022-06-23 CN CN202210719831.9A patent/CN115064118B/zh active Active
- 2022-11-08 WO PCT/CN2022/130608 patent/WO2023245957A1/zh active Application Filing
- 2022-11-08 KR KR1020247004333A patent/KR20240031383A/ko unknown
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20200111418A1 (en) * | 2018-10-04 | 2020-04-09 | Samsung Display Co., Ltd. | Display apparatus and method of driving display panel using the same |
| CN111009218A (zh) * | 2018-10-04 | 2020-04-14 | 三星显示有限公司 | 显示装置以及使用该显示装置驱动显示面板的方法 |
| CN111341269A (zh) * | 2018-12-18 | 2020-06-26 | 三星显示有限公司 | 显示设备和驱动显示面板的方法 |
| US20200349879A1 (en) * | 2019-05-02 | 2020-11-05 | Samsung Display Co., Ltd. | Display apparatus and method of driving the same |
| CN111710299A (zh) * | 2020-06-30 | 2020-09-25 | 厦门天马微电子有限公司 | 一种显示面板、其驱动方法及显示装置 |
| CN111710300A (zh) * | 2020-06-30 | 2020-09-25 | 厦门天马微电子有限公司 | 一种显示面板、驱动方法及显示装置 |
| US20220068202A1 (en) * | 2020-08-27 | 2022-03-03 | Samsung Display Co., Ltd. | Display apparatus and method of driving display panel of the same |
| CN113012643A (zh) * | 2021-03-01 | 2021-06-22 | 上海天马微电子有限公司 | 显示面板及其驱动方法和显示装置 |
| CN113793569A (zh) * | 2021-10-27 | 2021-12-14 | 京东方科技集团股份有限公司 | 显示面板的控制方法、装置、设备和存储介质 |
| CN114863878A (zh) * | 2022-05-23 | 2022-08-05 | 厦门天马显示科技有限公司 | 显示面板的驱动方法、显示面板及显示装置 |
| CN115064118A (zh) * | 2022-06-23 | 2022-09-16 | 合肥维信诺科技有限公司 | 显示面板的驱动方法、驱动装置及显示装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20240031383A (ko) | 2024-03-07 |
| CN115064118B (zh) | 2023-06-02 |
| CN115064118A (zh) | 2022-09-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2017063224A1 (zh) | Amoled显示器的驱动系统及驱动方法 | |
| KR102452798B1 (ko) | 표시장치 | |
| CN104715737A (zh) | 显示装置及其亮度控制方法 | |
| KR102083297B1 (ko) | 표시장치와 그 휘도 제어 방법 | |
| KR20150026376A (ko) | 표시장치와 그 휘도 제어 방법 | |
| KR20190073637A (ko) | 저계조 단색 영상 보상을 수행하는 표시 장치, 및 표시 장치의 구동 방법 | |
| WO2024036864A1 (zh) | 驱动补偿电路、补偿方法以及显示装置 | |
| KR20200128289A (ko) | 표시 장치 및 이의 구동 방법 | |
| JP2015197473A (ja) | 信号処理方法、表示装置、及び電子機器 | |
| WO2023245957A1 (zh) | 显示面板的驱动方法、驱动装置及显示装置 | |
| KR20200128283A (ko) | 표시 장치 및 이의 구동 방법 | |
| KR102239895B1 (ko) | 입력 영상의 업 스케일링을 위한 데이터 변환부와 데이터 변환 방법 | |
| KR20190043661A (ko) | 유기 발광 표시 장치 및 이의 감마 기준 전압 설정 방법 | |
| KR20210010739A (ko) | 표시 장치 및 이를 이용한 표시 패널의 구동 방법 | |
| KR20220062802A (ko) | 표시장치와 그 영상 처리 방법 | |
| WO2023092405A1 (zh) | 显示面板的控制方法及控制装置、显示装置 | |
| WO2019056448A1 (zh) | 改善显示面板显示效果的方法和显示面板 | |
| US20210319739A1 (en) | Display device performing peak luminance driving, and method of operating a display device | |
| KR20180062587A (ko) | 실시간 보상 회로와 그를 포함한 전계 발광 표시장치 | |
| TW202147292A (zh) | Oled顯示面板之畫素補償方法及利用其之資訊處理裝置 | |
| KR20170005238A (ko) | 데이터 구동 회로, 이를 포함하는 표시 장치 및 이 표시 장치의 구동 방법 | |
| WO2023130222A1 (zh) | 显示面板的控制方法及控制装置、显示装置 | |
| KR102185118B1 (ko) | 유기발광표시장치 및 이의 동작방법 | |
| JP7386035B2 (ja) | 電流制限回路、表示装置、及び電流制限方法 | |
| KR102063989B1 (ko) | 유기발광표시장치 및 그 구동 방법 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ENP | Entry into the national phase |
Ref document number: 20247004333 Country of ref document: KR Kind code of ref document: A |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 1020247004333 Country of ref document: KR |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 22947694 Country of ref document: EP Kind code of ref document: A1 |