WO2023060937A1 - 显示面板的调试方法、显示设备及存储介质 - Google Patents

显示面板的调试方法、显示设备及存储介质 Download PDF

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Publication number
WO2023060937A1
WO2023060937A1 PCT/CN2022/101023 CN2022101023W WO2023060937A1 WO 2023060937 A1 WO2023060937 A1 WO 2023060937A1 CN 2022101023 W CN2022101023 W CN 2022101023W WO 2023060937 A1 WO2023060937 A1 WO 2023060937A1
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WIPO (PCT)
Prior art keywords
display panel
light
emitting element
afterglow phenomenon
row
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Application number
PCT/CN2022/101023
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English (en)
French (fr)
Inventor
周满城
熊志
康报虹
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惠科股份有限公司
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Application filed by 惠科股份有限公司 filed Critical 惠科股份有限公司
Priority to JP2023552211A priority Critical patent/JP2024508138A/ja
Priority to US18/256,282 priority patent/US20240054926A1/en
Priority to KR1020237031240A priority patent/KR20230142620A/ko
Publication of WO2023060937A1 publication Critical patent/WO2023060937A1/zh

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—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]
    • G09G3/3216—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 a passive 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
    • G09G3/22—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]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/97—Determining parameters from multiple pictures
    • 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
    • G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
    • 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
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10004—Still image; Photographic image
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0421—Structural details of the set of electrodes
    • G09G2300/0426—Layout of electrodes and connections
    • 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
    • G09G2310/0264—Details of driving circuits
    • 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
    • G09G2310/0264—Details of driving circuits
    • G09G2310/0267—Details of drivers for scan electrodes, other than drivers for liquid crystal, plasma or OLED displays
    • 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
    • G09G2310/08—Details of timing specific for flat panels, other than clock recovery
    • 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
    • G09G2320/0257—Reduction of after-image effects
    • 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
    • G09G2330/10—Dealing with defective 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
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/12—Test circuits or failure detection circuits included in a display system, as permanent part thereof
    • 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

Definitions

  • the present application relates to the field of display technology, in particular to a debugging method of a display panel, a display device and a storage medium.
  • display panels are widely used in various fields such as entertainment, education, and security, and users have gradually increased requirements for display effects of display panels.
  • the above-mentioned scanning line tends to have a residual voltage and generate parasitic capacitance, causing the light-emitting diodes connected to other scanning lines to be turned off.
  • the probability is turned on and emits light under the coupling effect of the parasitic capacitance, which makes the afterglow phenomenon appear in the area that should be kept dark on the display panel, which affects the display effect.
  • One of the purposes of the embodiments of the present application is to provide a debugging method for a display panel, a display device, and a storage medium, aiming at solving the problem that the existing light-emitting diodes may be turned on and emit light under the coupling effect of parasitic capacitance, so that the display panel Afterglow phenomenon occurs in areas that should be kept dark on the screen, which affects the display effect.
  • a debugging method of a display panel including:
  • the afterglow phenomenon occurs in the display panel, locate all regions in the display panel in which the afterglow phenomenon occurs, and each region includes at least one row of pixels;
  • each of the target scanning lines is used to drive a row of target pixels whose row number is smaller than the smallest row number of all rows of pixels in the corresponding region;
  • a display device including a display panel, a memory, a processor, and a computer program stored in the memory and operable on the processor;
  • the memory, the processor, and the display panel are connected in sequence, and the processor implements the steps of the debugging method for the display panel provided in the first aspect of the embodiment of the present application when executing the computer program.
  • the third aspect provides a computer-readable storage medium, the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the debugging method of the display panel provided by the first aspect of the embodiment of the present application is implemented A step of.
  • the first aspect of the embodiment of the present application provides a debugging method for a display panel.
  • a preset detection screen By displaying a preset detection screen, it is detected whether the afterglow phenomenon occurs on the display panel. If the afterglow phenomenon occurs on the display panel, all areas where the afterglow phenomenon occurs can be located and determined Probability causes the target scan line of the afterglow phenomenon on the display panel.
  • the probability of parasitic capacitance on the target scan line can be reduced, or the amount of charge stored in the parasitic capacitance generated by the target scan line can be reduced. Increase the time for the parasitic capacitance to release the charge, thereby alleviating or eliminating the afterglow phenomenon and improving the display effect.
  • FIG. 1 is a schematic structural diagram of a display device provided in Embodiment 1 of the present application.
  • FIG. 2 is a schematic structural diagram of a display panel provided in Embodiment 1 of the present application.
  • FIG. 3 is a schematic structural view of the display panel provided by Embodiment 1 of the present application when the afterglow phenomenon occurs;
  • FIG. 4 is a schematic flowchart of a debugging method for a display panel provided in Embodiment 2 of the present application;
  • FIG. 5 is a schematic diagram of the time sequence of data lines and scan lines when the afterglow phenomenon occurs on the display panel provided by Embodiment 2 of the present application;
  • FIG. 6 is a schematic diagram of the timing sequence of data lines and scan lines when the turn-on duration of a target scan line is shortened according to Embodiment 2 of the present application;
  • FIG. 7 is a schematic flowchart of a debugging method for a display panel provided in Embodiment 3 of the present application.
  • Display device 1; Display panel: 11; Memory 12; Processor: 13; Computer program 14; Driving circuit 15; Scanning line driving circuit: 154; Data line driving circuit: 155; Scanning lines: 151, 310, 320, 330 ; Data line: 152, 410, 420, 430; Light emitting element: 153, 411, 412, 413; Parasitic capacitance: 311.
  • the display device 1 includes a display panel 11 , a memory 12 , a processor 13 , and a computer stored in the memory 12 and capable of running on the processor 13 Procedure 14;
  • the memory 12, the processor 13 and the display panel 11 are sequentially connected, and when the processor 13 executes the computer program 14, the following steps of the debugging method of the display panel corresponding to FIG. 4 and FIG. 7 are implemented.
  • a display device may include, but is not limited to, a processor, a memory, a computer program stored in the memory executable on the processor, and a display panel.
  • FIG. 1 is only an example of a display device, and does not constitute a limitation to the display device. It may include more or less components than shown in the figure, or combine certain components, or different components, such as It may also include input and output devices, network access devices, etc.
  • the processor can be a timing controller (Timer Control Register, TCON) or a chip (System on Chip, SOC), or a central processing unit (Central Processing Unit, CPU), and the processor can also be other General-purpose processors, digital signal processors (Digital Signal Processor, DSP), application-specific integrated circuits (Application Specific Integrated Circuit, ASIC), off-the-shelf programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • a general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like.
  • the storage may be an internal storage unit of the display device in some embodiments, such as a hard disk or internal memory of the display device.
  • the memory may also be an external storage device of the display device, such as a plug-in hard disk equipped on the display device, a smart memory card (Smarm Medna Card, SMC), a secure digital (Secure Digital, SD) card, a flash memory Card (Flash Card), etc.
  • the memory may also include both an internal storage unit of the display device and an external storage device.
  • the memory is used to store the operating system, application program, boot loader (BoomLoader), data, and other programs, such as program codes of computer programs.
  • the memory can also be used to temporarily store data that has been output or will be output.
  • the display panel 11 includes a driving circuit 15, and the driving circuit 15 includes n scanning lines 151, m data lines 152, and n*m light emitting elements 153, one of which emits light
  • the anode of the element 153 is connected to one scanning line 151
  • the cathode of one light emitting element 153 is connected to one data line 152
  • each scanning line 151 is connected to the anodes of m light emitting elements 153
  • each data line 152 is connected to n light emitting elements 153 the cathode connection.
  • the driving circuit 15 further includes a scanning line driving circuit 154 and a data line driving circuit 155, the scanning line driving circuit 154 is used to control each scanning line to output a high level signal or a low level signal, and the data line driving circuit 155 is used to control each data line to output a driving signal or stop outputting a driving signal.
  • the anode of a light-emitting element 153 receives a high-level signal, and the cathode receives a driving signal, and the voltage difference between the anode and the cathode of a light-emitting element 153 is greater than the light-emitting
  • the preset conduction voltage of the light emitting element 153 is turned on, the light emitting element 153 is turned on and illuminated, wherein the preset conduction voltage of the light emitting element 153 is determined according to the type selection and physical characteristics of the light emitting element.
  • the structure schematic diagram of the display panel provided by Embodiment 1 of the present application when the afterglow phenomenon occurs specifically, any scan line of the drive circuit 15 of the display panel 11 (the scan line 310 is used as an example below) from the output
  • the high-level signal is switched to a low-level signal, voltage is likely to remain on the scanning line 310 and generate a parasitic capacitance 311.
  • the charge stored in the parasitic capacitance 311 can pass through any light-emitting element connected to the scanning line 310 (the light-emitting element 411 is used as an example below) and the corresponding The data line 410 discharges to the light-emitting element 412 and the light-emitting element 413 (the discharge flow of the charge is shown by the dotted line in Figure 3), if the data line 410 does not output a driving signal during the discharge process, the three light-emitting elements 411, 412 and 413 should be kept off, but during the discharge process, the three light emitting elements 411, 412 and 413 are mistakenly turned on and emit light, causing afterglow phenomenon to appear on the corresponding areas on the display panel that should be kept dark, affecting the display effect.
  • the scene diagram of the afterglow phenomenon shown in FIG. 3 is only exemplary. According to the working conditions of the data line and the scan line, the misconducted light-emitting element can be located on any scan line or any data line.
  • the display panel can be a light-emitting diode display panel based on LED (Light-Emitting Diode, light-emitting diode) technology, an OLED (Organic Light-Emitting Organic electro-laser display panels based on Diode (Organic Light Emitting Diode) technology, or based on QLED (Quantum Dot Light Emitting Diodes, quantum dot light-emitting diode) technology quantum dot light-emitting diode display panel or curved display panel, etc.
  • the type of light-emitting element is determined according to the type of display panel, for example, when the display panel is a light-emitting diode display panel, the light-emitting element is a light-emitting diode or Light-emitting diode chip; when the display panel is an organic laser display panel, the light-emitting element is an organic light-emitting diode or an organic light-emitting diode chip; when the
  • each light-emitting element can be used as a pixel (Pixel) of the display panel, and according to the color when it is lit, each light-emitting element can be a red pixel, a green pixel Or blue pixels to form the RGB color mode (Red-Green-Blue Color Mode).
  • Embodiment 2 of the present application is based on the display panel and its driving circuit structure in Embodiment 1.
  • the debugging method of the display panel can detect whether the afterglow phenomenon occurs on the display panel by displaying the preset detection screen. If the afterglow phenomenon occurs on the display panel, it can be located. All areas where the afterglow phenomenon occurs, and can determine the target scan line that has a probability of causing the afterglow phenomenon on the display panel. By shortening the opening time of the target scan line, the probability of parasitic capacitance on the target scan line can be reduced, or the generation of the target scan line can be reduced. The amount of charge stored in the parasitic capacitance can also increase the time for the parasitic capacitance to release the charge, thereby alleviating or eliminating the afterglow phenomenon and improving the display effect.
  • the debugging method of the display panel provided by the second embodiment of the present application is applied to the driving circuit of the display panel, including the following steps S401 to S405:
  • Step S401 drive the display panel to display the preset detection frame according to the preset detection frame signal.
  • the debugging method of the display panel provided by the embodiment of the present application is used to debug one or more display devices to be tested before the display panel leaves the factory.
  • the preset detection screen can be based on a Microsoft video format (such as wmv, asf or asx), Real Player format (such as rm or rmvb), MPEG format (such as mp4), Apple format (such as mov or m4v) and other different formats
  • a Microsoft video format such as wmv, asf or asx
  • Real Player format such as rm or rmvb
  • MPEG format such as mp4
  • Apple format such as mov or m4v
  • the preset detection screen can also be used to control each row of pixels to light up row by row. Specifically, when any row of pixels is lit and turned off, the next row of pixels is lit after a preset interval, and this cycle, Therefore, it can be detected whether each scan line is prone to residual voltage and generate parasitic capacitance when switching from outputting a high-level signal to outputting a low-level signal. Among them, the lighting duration and preset interval time of each row of pixels can be set according to actual testing needs.
  • step S401 includes:
  • a mapping relationship between the display area of the display panel and each scan line is established.
  • the display area of the display panel is composed of n*m light-emitting elements connected by n scan lines, and the display area of the display panel can be divided into n areas according to the arrangement of n rows of pixels connected by n scan lines, Each area includes a corresponding scan line and m pixels connected to the corresponding scan line, so as to establish a mapping relationship between the display area of the display panel and each scan line. After the mapping relationship is obtained, the row number of the scan line used to display the display content of the display panel may be determined based on the area where the display content of the display panel is located. It should be noted that the display area of the display panel may be divided according to actual needs, and the embodiment of the present application does not impose any limitation on the number of scanning lines included in the display area of each display panel.
  • Step S402 detecting whether the afterglow phenomenon occurs on the display panel.
  • camera equipment can be used to capture each frame of the preset detection picture displayed on the display panel, and observe whether there is an afterglow phenomenon in each frame of the preset detection picture; it can also be detected by the processor to correspond to each frame of the preset detection picture
  • the actual state of the light-emitting element is compared with the predicted state of the light-emitting element. If the actual state of the light-emitting element is inconsistent with the predicted state of the light-emitting element, it is judged that the display panel has an afterglow phenomenon. If the actual state of the light-emitting element is consistent with the predicted state of the light-emitting element, it is judged that the display panel There is no afterglow phenomenon on the panel.
  • the state of the light-emitting element may include on and off, and the predicted state of the light-emitting element can be determined by detecting the working conditions of the data line and the scanning line.
  • the i-th data line outputs a driving signal
  • the u-th scan line When the line outputs a high-level signal, it can be obtained that the predicted state of the light-emitting element in the i-th column and row u is on, otherwise the predicted state of the light-emitting element in the i-th column and row u is off, where i ⁇ [1 ,2,...,m], u ⁇ [1,2,...,n];
  • the actual state of the light-emitting element can be determined by detecting the voltage difference between the anode and the cathode of each light-emitting element, between the anode and the cathode of the light-emitting element When the voltage difference between them is greater than the preset conduction voltage, the actual state of the light-emitting element is on,
  • step S402 includes:
  • Image measuring Instrument Use an image measuring instrument (Image Measuring Instrument) to detect whether there is an afterglow phenomenon on the display panel.
  • the image measuring instrument can include a camera device and an image analysis module.
  • the image measuring instrument can capture the preset detection picture of each frame displayed on the display panel through the camera device, and pass the image
  • the analysis module analyzes the preset detection picture of each frame to detect whether the afterglow phenomenon occurs on the display panel, and the image measuring instrument detects whether the afterglow phenomenon occurs on the display panel, which can greatly improve the accuracy of detection.
  • the image analysis module can specifically use a convolutional neural network (Convolutional Neural Networks, CNN), regional proposal network (Region Proposal Network, RPN) or target detection algorithm (Deformable Parts Models, DPM) and other image analysis algorithms (Image Analysis Algorithm) to analyze the preset detection picture of each frame.
  • CNN convolutional Neural Networks
  • RPN regional proposal network
  • DPM Deformable Parts Models
  • Image Analysis Algorithm Image Analysis Algorithm
  • Step S403 if the afterglow phenomenon occurs on the display panel, locate all areas in the display panel where the afterglow phenomenon occurs, and each area includes at least one row of pixels.
  • each region includes at least one pixel in at least one row of pixels.
  • Step S404 determining at least one target scan line corresponding to each region, the target scan line is used to drive a row of target pixels whose row number is smaller than the minimum row number of all row pixels in the corresponding region.
  • At least one target scan line corresponding to each area can be determined through the position of each area in the display area of the display panel. Specifically, according to the position of an area in the display area of the display panel, the position of at least one row of pixels included in the above-mentioned one area in the display area of the display panel can be determined, so that at least one scan line connected to the above-mentioned at least one row of pixels can be determined position in the display area of the display panel, and then the row number of at least one target scan line can be determined, wherein the row number of the target scan line is smaller than the minimum row number of the at least one row of scan lines, that is, the target scan line is used to drive the row number A row of target pixels that is less than the minimum row number of all row pixels in the corresponding area.
  • step S404 includes:
  • At least one target scan line corresponding to each area is determined.
  • each region by substituting each region into the mapping relationship, at least one target scan line corresponding to each region can be quickly obtained. For example, assuming that n is greater than 5, each display area after the display panel is divided includes one scan line, and the row numbers of the scan lines included in each display area are different from each other, and the area where the afterglow phenomenon occurs in the display panel includes the first, For the 3rd and 5th areas, substitute the 1st, 3rd, and 5th areas into the mapping relationship, and it is easy to obtain that the target scan lines include the 1st, 3rd, and 5th scan lines.
  • Step S405 shortening the turn-on duration of each target scanning line.
  • the state of the target scan line may include open and close, and the state is open when the target scan line outputs a high-level signal, and the state is closed when the target scan line outputs a low-level signal.
  • charge release means that the parasitic capacitance releases the stored charge to the air or to the ground terminal; charge discharge refers to the parasitic capacitance releases the stored charge to the electronic components or data lines of the drive circuit, which may cause the display panel to appear Afterglow phenomenon.
  • the turn-on duration of any target scan line needs to be greater than or equal to the longest display time of the m light-emitting elements connected to any target scan line to ensure that the target The m light-emitting elements connected by the scan line can be displayed normally.
  • the longest display time of the m light-emitting elements connected to any target scanning line is determined according to the duration of the driving signals output by the m data lines, and the longest display time of the m light-emitting elements can be equal to the driving signals output by the m data lines maximum duration of .
  • FIG. 5 exemplarily shows a timing diagram of data lines and scan lines when the afterglow phenomenon occurs on the display panel.
  • the scan line 310 is turned on during the T1 time period, and the scan line 320 is turned on during the T3 period, and there is a preset time interval T2 after the scan line 310 is turned off and before the scan line 320 is turned on.
  • the scan line 310 generates a parasitic capacitance when outputting a high-level signal during the T1 period, and lasts during the T1 period. Charge the parasitic capacitance.
  • the parasitic capacitance does not complete the charge release within the preset time interval T2
  • the charge stored in the parasitic capacitance can pass through any light-emitting element connected to the scanning line 310 And the data lines corresponding to the light-emitting elements are discharged, resulting in afterglow phenomenon on the display panel.
  • FIG. 6 exemplarily shows a timing diagram of data lines and scanning lines when the turn-on duration of a target scanning line (taking scanning line 310 as an example) is shortened.
  • Adjust the opening of the scanning line 310 in the time period of T1 to open in the time period of t01 and close in the time period of t12, thereby shortening the opening time of the scanning line 310, and making the parasitic capacitance generated by the scanning line 310 in the time period of t01 can be turned on in the time period of t12 and T2 time period to release the charge, increasing the time for the parasitic capacitance on the scan line 310 to release the charge, thereby alleviating or eliminating the afterglow phenomenon.
  • step S405 includes:
  • the corresponding preset duration can be set for each scan line, and a preset duration correspondence table can be established.
  • the preset duration correspondence table can be retrieved Obtain the preset duration corresponding to each target scan line, so as to quickly complete and shorten the turn-on time of each target scan line according to the preset duration, and improve debugging efficiency.
  • the preset duration may be the longest display time of the m light-emitting elements connected to the corresponding target scan line; the preset duration may also be set according to actual debugging needs, and the embodiment of the present application does not make any specific time length for the preset duration. limit.
  • the debugging method of the display panel can detect whether the afterglow phenomenon occurs on the display panel by displaying a preset detection screen before the display panel leaves the factory. If the afterglow phenomenon occurs on the display panel, all areas where the afterglow phenomenon occurs can be located, and can Determine the target scan line that has a probability of causing the afterglow phenomenon on the display panel. By shortening the turn-on time of the target scan line, the probability of parasitic capacitance on the target scan line can be reduced, or the amount of charge stored in the parasitic capacitance generated by the target scan line can be reduced. It can also increase the time for the parasitic capacitance to release the charge, so as to alleviate or eliminate the afterglow phenomenon and improve the display effect.
  • the third embodiment provided by this application includes the following steps S701 to S707:
  • Step S701 driving the display panel to display the preset detection screen according to the preset detection screen signal
  • Step S702 detecting whether the afterglow phenomenon occurs on the display panel
  • Step S703 if the afterglow phenomenon does not appear on the display panel, stop debugging the display panel;
  • Step S704 if the afterglow phenomenon occurs on the display panel, locate all areas in the display panel where the afterglow phenomenon occurs, and each area includes at least one row of pixels;
  • Step S705 determining at least one target scanning line corresponding to each region, each target scanning line is used to drive a row of target pixels whose row number is smaller than the smallest row number of all row pixels in the corresponding region;
  • Step S706 shortening the turn-on duration of multiple target scanning lines corresponding to each area line by line;
  • Step S707 after shortening the opening time of any target scanning line, return to the step of detecting whether the afterglow phenomenon occurs on the display panel, and enter step S702.
  • step S703 is included after step S402 (S702)
  • step S706 is included after step S405
  • step S707 is also included after step S706. Step S703, step S706 and step S707 will be described below.
  • step S703 if there is no afterglow phenomenon in each frame of the preset detection picture displayed on the display panel, it is determined that the display panel is working normally, stop debugging the display panel, and exit the loop.
  • the turn-on duration of multiple target scanning lines corresponding to each area can be shortened row by row, and after shortening the turn-on duration of any target scan line, return to perform detection of whether the display panel appears
  • the step of the afterglow phenomenon can detect whether each target scan line causes the afterglow phenomenon, so that the row number of the target scan line that causes the afterglow phenomenon can be accurately determined, and the target scan line can be targeted for debugging according to actual needs to improve The pertinence and accuracy of debugging.
  • step S706 includes:
  • the turn-on duration of multiple target scan lines corresponding to each area is shortened line by line according to the reverse order of line numbers.
  • the debugging method of the display panel provided by Embodiment 3 of the present application can accurately locate the target scanning line that causes the afterglow phenomenon by shortening the opening time of any target scanning line and detecting whether the afterglow phenomenon occurs on the display panel, thereby improving the accuracy of debugging sex.
  • the embodiment of the present application also provides a computer-readable storage medium, the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, it can realize the above-mentioned debugging method of each display panel. step.
  • the integrated modules are realized in the form of software function modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, all or part of the procedures in the methods of the above embodiments in the present application can be completed by instructing related hardware through computer programs, and the computer programs can be stored in a computer-readable storage medium.
  • the computer program When executed by a processor, the steps in the above-mentioned various method embodiments can be realized.
  • the computer program includes computer program code, and the computer program code may be in the form of source code, object code, executable file or some intermediate form.
  • the computer-readable medium may at least include: any entity or device capable of carrying computer program codes to a camera terminal device, a recording medium, a computer memory, a read-only memory (ROM, Read-Only Memory), a random-access memory (RAM) , Random Access Memory), electrical carrier signals, telecommunication signals, and software distribution media.
  • ROM read-only memory
  • RAM random-access memory
  • U disk U disk
  • mobile hard disk magnetic disk or optical disk, etc.
  • modules and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present application.
  • the disclosed terminal device and method may be implemented in other ways.
  • the terminal device embodiments described above are only illustrative.
  • the division of the modules is only a logical function division. In actual implementation, there may be other division methods.
  • multiple modules or components can be combined Or it can be integrated into another system, or some features can be ignored, or not implemented.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or modules may be in electrical, mechanical or other forms.

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Abstract

一种显示面板(11)的调试方法、显示设备(1)及存储介质。通过显示预设检测画面检测显示面板(11)是否出现余晖现象，若显示面板(11)出现余晖现象可以定位出现余晖现象的所有区域，并确定有概率导致显示面板(11)出现余晖现象的目标扫描线，通过缩短目标扫描线的打开时长，可以减少目标扫描线出现寄生电容(311)的概率，或者可以减少目标扫描线生成的寄生电容(311)中存储的电荷量，还可以增加寄生电容(311)进行电荷释放的时间，从而缓解或消除余晖现象，提升显示效果。

Description

显示面板的调试方法、显示设备及存储介质
本申请要求于2021年10月14日在中国专利局提交的、申请号为202111199134.7、发明名称为“显示面板的调试方法、显示设备及存储介质”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，具体涉及一种显示面板的调试方法、显示设备及存储介质。
 背景技术
随着显示技术的快速发展，显示面板在娱乐、教育、安防等各种领域得到广泛应用，用户对显示面板的显示效果要求也逐渐提高。
目前的显示面板在一条扫描线从输出高电平信号切换至输出低电平信号时，上述一条扫描线容易残留有电压并生成寄生电容，导致其他扫描线上连接的关断的发光二极管，有概率在寄生电容的耦合作用下导通并发光，使得显示面板上应保持黑暗的区域出现余晖现象，影响显示效果。
 技术问题
本申请实施例的目的之一在于：提供一种显示面板的调试方法、显示设备及存储介质，旨在解决现有的发光二极管有概率在寄生电容的耦合作用下导通并发光，使得显示面板上应保持黑暗的区域出现余晖现象，影响显示效果的问题。
 技术解决方案
本申请实施例采用的技术方案是：
第一方面，提供了一种显示面板的调试方法，包括：
根据预设检测画面信号，驱动所述显示面板显示预设检测画面；
检测所述显示面板是否出现余晖现象；
若所述显示面板出现余晖现象，定位所述显示面板中出现余晖现象的所有区域，每个所述区域包括至少一行像素；
确定与每个所述区域对应的至少一条目标扫描线，每条所述目标扫描线用于驱动行序号小于对应区域的所有行像素的最小行序号的一行目标像素；
缩短每条所述目标扫描线的打开时长。
第二方面，提供了一种显示设备，包括显示面板、存储器、处理器、存储在所述存储器中并可在所述处理器上运行的计算机程序；
所述存储器、所述处理器和所述显示面板依次连接，所述处理器执行所述计算机程序时实现本申请实施例第一方面提供的显示面板的调试方法的步骤。
第三方面，提供了一种计算机可读存储介质，所述计算机可读存储介质存储有计算机程序，所述计算机程序被处理器执行时实现本申请实施例第一方面提供的显示面板的调试方法的步骤。
 有益效果
本申请实施例的第一方面提供一种显示面板的调试方法，通过显示预设检测画面检测显示面板是否出现余晖现象，若显示面板出现余晖现象可以定位出现余晖现象的所有区域，并可以确定有概率导致显示面板出现余晖现象的目标扫描线，通过缩短目标扫描线的打开时长，可以减少目标扫描线出现寄生电容的概率，或者可以减少目标扫描线生成的寄生电容中存储的电荷量，还可以增加寄生电容进行电荷释放的时间，从而缓解或消除余晖现象，提升显示效果。
可以理解的是，上述第二方面和第三方面的有益效果可以参见上述第一方面中的相关描述，在此不再赘述。
 附图说明
图1是本申请实施例一提供的显示设备的结构示意图；
图2是本申请实施例一提供的显示面板的结构示意图；
图3是本申请实施例一提供的显示面板出现余晖现象时的结构示意图；
图4是本申请实施例二提供的显示面板的调试方法的流程示意图；
图5是本申请实施例二提供的显示面板出现余晖现象时数据线和扫描线的时序示意图；
图6是本申请实施例二提供的缩短一条目标扫描线的打开时长时数据线和扫描线的时序示意图；
图7是本申请实施例三提供的显示面板的调试方法的流程示意图。
附图标号：
显示设备：1；显示面板：11；存储器12；处理器：13；计算机程序14；驱动电路15；扫描线驱动电路：154；数据线驱动电路：155；扫描线：151、310、320、330；数据线：152、410、420、430；发光元件：153、411、412、413；寄生电容：311。
 本发明的实施方式
实施例一
如图1所示，本申请实施例一提供的显示设备1的结构示意图，显示设备1包括显示面板11、存储器12、处理器13、存储在存储器12中并可在处理器13上运行的计算机程序14；
存储器12、处理器13和显示面板11依次连接，处理器13执行计算机程序14时实现下述图4和图7对应的显示面板的调试方法的步骤。
在应用中，显示设备可包括，但不仅限于，处理器、存储器、存储在存储器中可在处理器上运行的计算机程序以及显示面板。本领域技术人员可以理解，图1仅仅是显示设备的举例，并不构成对显示设备的限定，可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件，例如还可以包括输入输出设备、网络接入设备等。
在应用中，处理器可以是时序控制器（Timer Control Register，TCON）或片上芯片（System on Chip，SOC），也可以是中央处理单元（Central Processing Unit，CPU），该处理器还可以是其他通用处理器、数字信号处理器（Digital Signal Processor，DSP）、专用集成电路（Application Specific Integrated Circuit，ASIC）、现成可编程门阵列（Field-Programmable Gate Array，FPGA）或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
在应用中，存储器在一些实施例中可以是显示设备的内部存储单元，例如显示设备的硬盘或内存。存储器在另一些实施例中也可以是显示设备的外部存储设备，例如显示设备上配备的插接式硬盘，智能存储卡（Smarm Medna Card，SMC），安全数字（Secure Dngnmal，SD）卡，闪存卡（Flash Card）等。进一步地，存储器还可以既包括显示设备的内部存储单元也包括外部存储设备。存储器用于存储操作系统、应用程序、引导装载程序（BoomLoader）、数据以及其他程序等，例如计算机程序的程序代码等。存储器还可以用于暂时地存储已经输出或者将要输出的数据。
需要说明的是，上述装置/模块之间的信息交互、执行过程等内容，由于与本申请方法实施例基于同一构思，其具体功能及带来的技术效果，具体可参见方法实施例部分，此处不再赘述。
如图2所示，基于图1所对应的实施例一，显示面板11包括驱动电路15，驱动电路15包括n条扫描线151、m条数据线152及n*m个发光元件153，一个发光元件153的阳极与一条扫描线151连接，一个发光元件153的阴极与一条数据线152连接，每条扫描线151与m个发光元件153的阳极连接，每条数据线152与n个发光元件153的阴极连接。
在一个实施例中，驱动电路15还包括扫描线驱动电路154和数据线驱动电路155，扫描线驱动电路154用于控制每一条扫描线输出高电平信号或低电平信号，数据线驱动电路155用于控制每一条数据线输出驱动信号或停止输出驱动信号，在一个发光元件153的阳极接收高电平信号，阴极接收驱动信号，且发光元件153的阳极和阴极之间的电压差大于发光元件153的预设导通电压时，发光元件153导通并发亮，其中，发光元件153的预设导通电压根据发光元件的选型和物理特性确定。
如图3所示，本申请实施例一提供的显示面板出现上余晖现象时的结构示意图，具体的，显示面板11的驱动电路15的任意一条扫描线（下面以扫描线310为例）从输出高电平信号切换至低电平信号时，扫描线310上容易残留有电压并生成寄生电容311，在寄生电容311中存储的电荷未得到释放前，如果行序号大于扫描线310的扫描线（下面以扫描线320和扫描线330为例）输出高电平信号时，则寄生电容311中存储的电荷可以经过扫描线310连接的任意一个发光元件（下面以发光元件411为例）以及对应的数据线410，泄放至发光元件412和发光元件413（电荷的泄放流向如图3虚线所示），若泄放过程中数据线410未输出驱动信号，则三个发光元件411、412及413原本应保持关断，而泄放过程中三个发光元件411、412及413被误导通并发光，使得显示面板上应保持黑暗的对应区域出现余晖现象，影响显示效果。
需要说明的是，图3所示的余晖现象的场景示意图仅是示例性的，根据数据线和扫描线的工作情况，误导通的发光元件可以位于任意一条扫描线上或任意一条数据线上。
在应用中，显示面板可以是基于LED（Light-Emitting Diode，发光二极管）技术的发光二极管显示面板、基于OLED（Organic Light-Emitting Diode，有机发光二极管）技术的有机电激光显示面板、或基于QLED（Quantum Dot Light Emitting Diodes，量子点发光二极管）技术的量子点发光二极管显示面板或曲面显示面板等，发光元件的类型根据显示面板的类型确定，例如，在显示面板为发光二极管显示面板时，发光元件为发光二极管或发光二极管芯片；在显示面板为有机电激光显示面板时，发光元件为有机发光二极管或有机发光二极管芯片；在显示面板为量子点发光二极管显示面板时，发光元件为量子点发光二极管或量子点发光二极管芯片。
在应用中，基于LED、OLED或QLED技术的显示面板，每一个发光元件可以作为显示面板的一个像素（Pixel），并根据点亮时的颜色不同，每一个发光元件可以是红色像素、绿色像素或蓝色像素，以构成RGB色彩模式（Red-Green-Blue Color Mode）。
实施例二
本申请实施例二基于实施例一中的显示面板及其驱动电路的结构实现的显示面板的调试方法，可以通过显示预设检测画面检测显示面板是否出现余晖现象，若显示面板出现余晖现象可以定位出现余晖现象的所有区域，并可以确定有概率导致显示面板出现余晖现象的目标扫描线，通过缩短目标扫描线的打开时长，可以减少目标扫描线出现寄生电容的概率，或者可以减少目标扫描线生成的寄生电容中存储的电荷量，还可以增加寄生电容进行电荷释放的时间，从而缓解或消除余晖现象，提升显示效果。
如图4所示，本申请实施例二提供的显示面板的调试方法，应用于显示面板的驱动电路，包括如下步骤S401至步骤S405：
步骤S401、根据预设检测画面信号，驱动显示面板显示预设检测画面。
在应用中，本申请实施例提供的显示面板的调试方法用于在显示面板出厂前对一台或多台待测显示设备进行调试，待测显示设备的存储器可以预存储有预设检测画面，预设检测画面可以是基于一份微软视频格式（例如wmv、asf或asx）、Real Player格式（例如rm或rmvb）、MPEG格式（例如mp4）、Apple格式（例如mov或m4v）等不同格式的视频文件，预设检测画面在显示面板显示时需要满足使显示面板的每一个像素点亮一次，以提高检测显示面板是否具有余晖现象的准确性。
在应用中，预设检测画面还可以用于控制每一行像素逐行点亮，具体的，在任意一行像素点亮并熄灭时，下一行像素在预设间隔时间后点亮，以此循环，从而可以检测每一条扫描线从输出高电平信号切换至输出低电平信号时，是否容易残留有电压并生成寄生电容。其中，每一行像素的点亮时长和预设间隔时间可以根据实际测试需要进行设置。
在一个实施例中，步骤S401之前包括：
建立显示面板的显示区域与每一条扫描线之间的映射关系。
在应用中，显示面板的显示区域由n条扫描线连接的n*m个发光元件构成，可以将显示面板的显示区域按照n条扫描线连接的n行像素的排布划分为n个区域，每个区域包括对应的一条扫描线及上述对应的一条扫描线连接的m个像素，从而建立显示面板的显示区域与每一条扫描线之间的映射关系。在得到映射关系后，可以基于显示面板的显示内容的所在区域，确定用于显示上述显示面板的显示内容的扫描线的行序号。需要说明的是，显示面板的显示区域可以根据实际需要进行划分，本申请实施例对每个显示面板的显示区域包括的扫描线条数不作任何限制。
步骤S402、检测显示面板是否出现余晖现象。
在应用中，可以通过摄像设备捕捉显示面板显示的每一帧预设检测画面，并观察每一帧预设检测画面是否出现余晖现象；也可以通过处理器检测与每一帧预设检测画面对应的发光元件实际状态，并与发光元件预测状态进行比较，若发光元件实际状态和发光元件预测状态不一致，则判断显示面板出现余晖现象，若发光元件实际状态和发光元件预测状态一致，则判断显示面板未出现余晖现象。
具体的，发光元件的状态可以包括导通和关断，发光元件预测状态可以通过检测数据线和扫描线的工作情况确定，具体的，在第i条数据线输出驱动信号，且第u条扫描线输出高电平信号时，可以得到第i列第u行的发光元件的预测状态为导通，否则得到第i列第u行的发光元件的预测状态为关断，其中，i∈[1,2,…,m]，u∈[1,2,…,n]；发光元件实际状态可以通过检测每一个发光元件的阳极和阴极之间的电压差确定，在发光元件的阳极和阴极之间的电压差大于预设导通电压时，则发光元件实际状态为导通，在发光元件的阳极和阴极之间的电压差小于预设导通电压时，则发光元件实际状态为关断。
在一个实施例中，步骤S402包括：
通过影像测量仪（Image Measuring Instrument）检测显示面板是否出现余晖现象。
在应用中，影像测量仪可以包括摄像设备和图像分析模块，在显示面板显示预设检测画面时，影像测量仪可以通过摄像设备捕捉显示面板显示的每一帧的预设检测画面，并通过图像分析模块对每一帧的预设检测画面进行分析，检测显示面板是否出现余晖现象，通过影像测量仪检测显示面板是否出现余晖现象，可以大幅提高检测的准确性。
其中，图像分析模块具体可以采用基于卷积神经网络（Convolutional Neural Networks,CNN）、区域建议网络（Region Proposal Network，RPN）或目标检测算法（Deformable Parts Models，DPM）等搭建的图像分析算法（Image Analysis Algorithm）对每一帧的预设检测画面进行分析。
步骤S403、若显示面板出现余晖现象，定位显示面板中出现余晖现象的所有区域，每个区域包括至少一行像素。
在应用中，若显示面板在显示预设检测画面时出现余晖现象，可以基于显示面板的显示区域，定位并通过存储器记录出现余晖现象的所有区域。由于预设检测画面通过一个或多个像素显示，容易得到每个区域包括至少一行像素中的至少一个像素。
步骤S404、确定与每个区域对应的至少一条目标扫描线，目标扫描线用于驱动行序号小于对应区域的所有行像素的最小行序号的一行目标像素。
在应用中，可以通过每个区域在显示面板的显示区域中的位置，确定与每个区域对应的至少一条目标扫描线。具体的，可以根据一个区域在显示面板的显示区域中的位置，确定上述一个区域包括的至少一行像素在显示面板的显示区域中的位置，从而可以确定与上述至少一行像素连接的至少一条扫描线在显示面板的显示区域中的位置，进而可以确定至少一条目标扫描线的行序号，其中，目标扫描线的行序号小于上述至少一行扫描线的最小行序号，即目标扫描线用于驱动行序号小于对应区域的所有行像素的最小行序号的一行目标像素。
在一个实施例中，步骤S404包括：
根据每个区域和映射关系，确定与每个区域对应的至少一条目标扫描线。
在应用中，将每个区域代入映射关系，可以快速得到与每个区域对应的至少一条目标扫描线。例如，假设n大于5，显示面板划分后的每个显示区域包括1条扫描线，每个显示区域包括的扫描线行序号互不相同，在显示面板中出现余晖现象的区域包括第1个、第3个及第5个区域时，将第1个、第3个及第5个区域代入映射关系，容易得到目标扫描线包括第1条、第3条及第5条扫描线。
步骤S405、缩短每条目标扫描线的打开时长。
在应用中，目标扫描线的状态可以包括打开和关闭，在目标扫描线输出高电平信号时的状态为打开，输出低电平信号时的状态为关闭。通过缩短每条目标扫描线的打开时长，可以减少目标扫描线出现寄生电容的概率，或者可以减少目标扫描线生成的寄生电容中存储的电荷值，还可以增加寄生电容进行电荷释放的时间，从而缓解或消除余晖现象。其中，电荷释放是指寄生电容将存储的电荷释放至空气或释放至接地端；电荷泄放是指寄生电容将存储的电荷释放至驱动电路的电子元件或数据线中，有概率导致显示面板出现余晖现象。
需要说明的是，在缩短每条目标扫描线的打开时长后，任意一条目标扫描线的打开时长需要大于或等于上述任意一条目标扫描线连接的m个发光元件的最长显示时间，以保证目标扫描线连接的m个发光元件可以正常显示。其中，任意一条目标扫描线连接的m个发光元件的最长显示时间根据m条数据线输出的驱动信号的时长确定，m个发光元件的最长显示时间可以等于m条数据线输出的驱动信号的最长时长。
基于实施例一的图3所示的结构示意图，图5示例性的示出了显示面板出现余晖现象时数据线和扫描线的时序示意图，具体的，扫描线310在T1时间段打开，扫描线320在T3时间段打开，在扫描线310关闭后和扫描线320打开前具有预设时间间隔T2，扫描线310在T1时间段输出高电平信号时生成寄生电容，并在T1时间段内持续为寄生电容进行充电，若寄生电容在预设时间间隔T2内未完成电荷释放，则在进入T3时间段数据线320打开时，寄生电容中存储的电荷可以通过扫描线310连接的任意一个发光元件以及发光元件对应的数据线进行泄放，导致显示面板出现余晖现象。
基于实施例一的图3所示的结构示意图，图6示例性的示出了缩短一条目标扫描线（以扫描线310为例）的打开时长时数据线和扫描线的时序示意图，具体的，将扫描线310在T1时间段打开调整为在t01时间段打开，在t12时间段关闭，从而缩短扫描线310的打开时间，并使扫描线310在t01时间段生成的寄生电容可以在t12时间段及T2时间段进行电荷释放，增加扫描线310上的寄生电容进行电荷释放的时间，从而缓解或消除余晖现象。其中，假设m条数据线的输出的驱动信号的最长时长为t01，则在缩短扫描线310的打开时长时，扫描线310的打开时长需要大于或等于t01，以保证扫描线310连接的m个发光元件可以正常显示；T1=t01+t12。
在一个实施例中，步骤S405包括：
将每条目标扫描线的打开时长缩短至对应的预设时长。
在应用中，可以为每条扫描线设置对应的预设时长，并建立预设时长对应表，当任意一条或任意多条扫描线被确定为目标扫描线时，可以通过检索预设时长对应表获取每条目标扫描线对应的预设时长，从而根据预设时长对快速完成缩短每条目标扫描线的打开时长，提高调试效率。其中，预设时长可以是对应的目标扫描线连接的m个发光元件的最长显示时间；预设时长也可以根据实际调试需要进行设置，本申请实施例对预设时长的具体时间长度不作任何限制。
本申请实施例二提供的显示面板的调试方法，在显示面板出厂前可以通过显示预设检测画面检测显示面板是否出现余晖现象，若显示面板出现余晖现象可以定位出现余晖现象的所有区域，并可以确定有概率导致显示面板出现余晖现象的目标扫描线，通过缩短目标扫描线的打开时长，可以减少目标扫描线出现寄生电容的概率，或者可以减少目标扫描线生成的寄生电容中存储的电荷量，还可以增加寄生电容进行电荷释放的时间，从而缓解或消除余晖现象，提升显示效果。
实施例三
如图7所示，本申请提供的实施例三，基于图4所对应的实施例二，包括如下步骤S701至步骤S707：
步骤S701、根据预设检测画面信号，驱动显示面板显示预设检测画面；
步骤S702、检测显示面板是否出现余晖现象；
步骤S703、若显示面板未出现余晖现象，停止调试显示面板；
步骤S704、若显示面板出现余晖现象，定位显示面板中出现余晖现象的所有区域，每个区域包括至少一行像素；
步骤S705、确定与每个区域对应的至少一条目标扫描线，每条目标扫描线用于驱动行序号小于对应区域的所有行像素的最小行序号的一行目标像素；
步骤S706、逐行缩短与每个区域对应的多条目标扫描线的打开时长；
步骤S707、在缩短任意一条目标扫描线的打开时长之后，返回执行检测显示面板是否出现余晖现象的步骤，进入步骤S702。
在应用中，实施例三和上述实施例二的区别在于，步骤S402（S702）之后还包括步骤S703，步骤S405包括步骤S706，步骤S706之后还包括步骤S707。下面对步骤S703、步骤S706及步骤S707进行说明。
在应用中，关于步骤S703，若显示面板显示的每一帧预设检测画面都未出现余晖现象，则判定显示面板正常工作，停止调试显示面板，退出循环。
在应用中，关于步骤S706和步骤S707，可以逐行缩短与每个区域对应的多条目标扫描线的打开时长，并在缩短任意一条目标扫描线的打开时长之后，返回执行检测显示面板是否出现余晖现象的步骤，可以对每一条目标扫描线是否导致余晖现象进行检测，从而可以准确确定导致余晖现象的目标扫描线的行序号，并可以根据实际需要对该目标扫描线进行针对性调试，提高调试的针对性和准确性。
在一个实施例中，步骤S706包括：
根据行序号的倒序逐行缩短与每个区域对应的多条目标扫描线的打开时长。
在应用中，寄生电容存储的电荷在泄放时，每流经一个发光元件有概率误导通并使其点亮，则越接近出现余晖现象的区域的目标扫描线，导致余晖现象的概率越大，需要说明的是，目标扫描线的行序号越大，目标扫描线距离出现余晖现象的区域越近，因此根据行序号的倒序逐行缩短与每个区域对应的多条目标扫描线的打开时长，可以提高发现导致余晖现象的目标扫描线的概率，从而提高调试效率。
本申请实施例三提供的显示面板的调试方法，通过在缩短任意一条目标扫描线的打开时长之后，检测显示面板是否出现余晖现象，可以准确定位导致余晖现象的目标扫描线，从而提高调试的准确性。
应理解，上述实施例中各步骤的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
本申请实施例还提供了一种计算机可读存储介质，所述计算机可读存储介质存储有计算机程序，所述计算机程序被处理器执行时实现可实现上述各个显示面板的调试方法实施例中的步骤。
所述集成的模块如果以软件功能模块的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请实现上述实施例方法中的全部或部分流程，可以通过计算机程序来指令相关的硬件来完成，所述的计算机程序可存储于一计算机可读存储介质中，该计算机程序在被处理器执行时，可实现上述各个方法实施例的步骤。其中，所述计算机程序包括计算机程序代码，所述计算机程序代码可以为源代码形式、对象代码形式、可执行文件或某些中间形式等。所述计算机可读介质至少可以包括：能够将计算机程序代码携带到拍照终端设备的任何实体或装置、记录介质、计算机存储器、只读存储器（ROM，Read-Only Memory）、随机存取存储器（RAM，Random Access Memory）、电载波信号、电信信号以及软件分发介质。例如U盘、移动硬盘、磁碟或者光盘等。
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述或记载的部分，可以参见其它实施例的相关描述。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的模块及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
在本申请所提供的实施例中，应该理解到，所揭露的终端设备和方法，可以通过其它的方式实现。例如，以上所描述的终端设备实施例仅仅是示意性的，例如，所述模块的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个模块或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通讯连接可以是通过一些接口，装置或模块的间接耦合或通讯连接，可以是电性，机械或其它的形式。
以上所述实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的精神和范围，均应包含在本申请的保护范围之内。

Claims (15)

  1. 一种显示面板的调试方法，其特征在于，所述方法包括：
    根据预设检测画面信号，驱动所述显示面板显示预设检测画面；
    检测所述显示面板是否出现余晖现象；
    若所述显示面板出现余晖现象，定位所述显示面板中出现余晖现象的所有区域，每个所述区域包括至少一行像素；
    确定与每个所述区域对应的至少一条目标扫描线，每条所述目标扫描线用于驱动行序号小于对应区域的所有行像素的最小行序号的一行目标像素；
    缩短每条所述目标扫描线的打开时长。
  2. 如权利要求1所述的调试方法，其特征在于，所述检测所述显示面板是否出现余晖现象，包括：
    通过影像测量仪检测所述显示面板是否出现余晖现象。
  3. 如权利要求2所述的调试方法，其特征在于，所述影像测量仪包括摄像设备和图像分析模块，所述通过影像测量仪检测所述显示面板是否出现余晖现象，包括：
    通过所述摄像设备捕捉所述显示面板显示的每一帧的预设检测画面；
    通过所述图像分析模块对所述每一帧的预设检测画面进行分析，检测所述显示面板是否出现余晖现象。
  4. 如权利要求1所述的调试方法，其特征在于，所述检测所述显示面板是否出现余晖现象，包括：
    检测与每一帧预设检测画面对应的发光元件实际状态；
    若所述发光元件实际状态和发光元件预测状态不一致，判断所述显示面板出现余晖现象；
    若所述发光元件实际状态和发光元件预测状态一致，判断所述显示面板未出现余晖现象。
  5. 如权利要求1所述的调试方法，其特征在于，所述根据预设检测画面信号，驱动所述显示面板显示预设检测画面之前，包括：
    建立所述显示面板的显示区域与每一条扫描线之间的映射关系。
  6. 如权利要求5所述的调试方法，其特征在于，所述确定与每个所述区域对应的至少一条目标扫描线，包括：
    根据每个所述区域和所述映射关系，确定与每个所述区域对应的至少一条目标扫描线。
  7. 如权利要求1所述的调试方法，其特征在于，所述缩短每条所述目标扫描线的打开时长，包括：
    逐行缩短与每个所述区域对应的多条目标扫描线的打开时长。
  8. 如权利要求7所述的调试方法，其特征在于，所述逐行缩短与每个所述区域对应的多条目标扫描线的打开时长，包括：
    根据扫描线的行序号的倒序，逐行缩短与每个所述区域对应的多条目标扫描线的打开时长。
  9. 如权利要求7所述的调试方法，其特征在于，所述方法还包括：
    在缩短任意一条所述目标扫描线的打开时长之后，返回执行检测所述显示面板是否出现余晖现象的步骤；
    若所述显示面板未出现余晖现象，停止调试所述显示面板。
  10. 如权利要求9所述的调试方法，其特征在于，所述若所述显示面板未出现余晖现象，停止调试所述显示面板，包括：
    若所述显示面板显示的每一帧预设检测画面都未出现余晖现象，停止调试所述显示面板。
  11. 如权利要求1所述的调试方法，其特征在于，所述缩短每条所述目标扫描线的打开时长，包括：
    将每条所述目标扫描线的打开时长缩短至对应的预设时长。
  12. 一种显示设备，其特征在于，所述显示设备包括显示面板、存储器、处理器、存储在所述存储器中并可在所述处理器上运行的计算机程序；
    所述存储器、所述处理器和所述显示面板依次连接，所述处理器执行所述计算机程序时实现如权利要求1所述的显示面板的调试方法的步骤。
  13. 如权利要求12所述的显示设备，其特征在于，所述显示面板包括驱动电路，所述驱动电路包括n条扫描线、m条数据线及n*m个发光元件，一个发光元件的阳极与一条扫描线连接，所述一个发光元件的阴极与一条数据线连接，每条扫描线与m个发光元件的阳极连接，每条数据线与n个发光元件的阴极连接。
  14. 如权利要求13所述的显示设备，其特征在于，所述驱动电路还包括扫描线驱动电路和数据线驱动电路；
    所述扫描线驱动电路用于控制每一条扫描线输出高电平信号或低电平信号；
    所述数据线驱动电路用于控制每一条数据线输出驱动信号或停止输出驱动信号；
    其中，在所述发光元件的阳极接收高电平信号，所述发光元件的阴极接收驱动信号，且所述发光元件的阳极和阴极之间的电压差大于所述发光元件的预设导通电压时，所述发光元件导通并发光。
  15. 一种计算机可读存储介质，所述计算机可读存储介质存储有计算机程序，其特征在于，所述计算机程序被处理器执行时实现如权利要求1所述显示面板的调试方法的步骤。
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