WO2020051981A1 - 一种检测方法、显示面板及其驱动方法 - Google Patents

一种检测方法、显示面板及其驱动方法 Download PDF

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Publication number
WO2020051981A1
WO2020051981A1 PCT/CN2018/111239 CN2018111239W WO2020051981A1 WO 2020051981 A1 WO2020051981 A1 WO 2020051981A1 CN 2018111239 W CN2018111239 W CN 2018111239W WO 2020051981 A1 WO2020051981 A1 WO 2020051981A1
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Prior art keywords
display panel
resistance
gate driving
compensation
value
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Ceased
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PCT/CN2018/111239
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English (en)
French (fr)
Inventor
黄北洲
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HKC Co Ltd
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HKC Co Ltd
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Priority to US16/340,139 priority Critical patent/US11282419B2/en
Publication of WO2020051981A1 publication Critical patent/WO2020051981A1/zh
Anticipated expiration legal-status Critical
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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
    • G09G3/006—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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3674—Details of drivers for scan electrodes
    • G09G3/3677—Details of drivers for scan electrodes suitable for active matrices only
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • 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
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0264—Details of driving circuits
    • G09G2310/0281—Arrangement of scan or data electrode driver circuits at the periphery of a panel not inherent to a split matrix structure
    • 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
    • G09G2320/0223—Compensation for problems related to R-C delay and attenuation in electrodes of matrix panels, e.g. in gate electrodes or on-substrate video signal electrodes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0233—Improving the luminance or brightness uniformity across the screen
    • 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
    • G09G2320/04—Maintaining the quality of display appearance
    • G09G2320/043—Preventing or counteracting the effects of ageing

Definitions

  • the present application relates to the field of display technology, and in particular, to a detection method, a display panel, and a driving method thereof.
  • liquid crystal displays have become mainstream products due to their thin body, power saving and low radiation, which have been widely used.
  • Most of the liquid crystal displays on the market are backlit liquid crystal displays, which include a liquid crystal panel and a backlight module.
  • the working principle of a liquid crystal panel is to place liquid crystal molecules in two parallel glass substrates, and apply a driving voltage to the two glass substrates to control the rotation direction of the liquid crystal molecules so as to refract the light of the backlight module to generate a picture.
  • the thin film transistor liquid crystal display includes a liquid crystal panel and a backlight module.
  • the liquid crystal panel includes a color filter substrate (Color Filter Substrate, also called a color filter substrate), and a thin film transistor array substrate (Thin Film Transistor Substrate, TFT Substrate).
  • a transparent electrode exists on the opposite side of the substrate.
  • a layer of liquid crystal (LC) is sandwiched between the two substrates.
  • the display screen of the display panel may display unevenly.
  • What the application is to solve is to provide a detection method, a display panel, and a driving method thereof that can make the screen display of the display panel appear in a uniform and stable state and improve the display effect of the display panel.
  • the present application provides a detection method, particularly a detection method for performing resistance compensation on a scanning line of a display panel, including:
  • Externally adjustable compensation resistor adjust the resistance of the compensation resistor
  • the resistance value of the current compensation resistance is stored as the resistance compensation value of the scanning line of the current group
  • the step of obtaining a gate driving signal of one of the scanning lines in the current set of scanning lines includes:
  • the step of storing the resistance value of the current compensation resistor as the resistance compensation value of the scanning line of the current group includes:
  • the adjusted gate driving signal When the high-level voltage value of the adjusted gate driving signal reaches a preset high-level voltage threshold, it is considered that the adjusted gate driving signal satisfies a preset target gate driving signal condition.
  • the preset high-level voltage threshold is greater than or equal to a high-level voltage value of a gate driving signal of a scan line furthest from the driving circuit board of the display panel.
  • the detection is started from a scan line farthest from the driving circuit board of the display panel.
  • the gate driving signal of a scanning line farthest from the driving circuit board of the display panel is used as the target gate driving signal condition to start detection.
  • the display panel includes a plurality of gate driving chips, and the plurality of sets of scanning lines is a group of scanning lines output by one gate driving chip.
  • a plurality of adjacent gate driving chips is a group.
  • the scanning lines of one line are a group, and each scanning line is individually compensated.
  • the present application also discloses a driving method, in particular a driving method for resistance compensation of a scanning line of a display panel, including:
  • the present application also discloses a display panel.
  • the display panel is provided with a plurality of scanning lines.
  • the display panel further includes:
  • Driving circuit board scanning driving circuit and resistance compensation circuit
  • the resistance compensation circuit is disposed between an output terminal of the scan driving circuit and a corresponding scan line;
  • the resistance compensation circuit includes:
  • the resistance value selection circuit reads the resistance compensation value corresponding to the current scanning line position from the memory, and performs resistance compensation on the output end of the current scanning driving circuit according to the resistance compensation value.
  • the scanning driving circuit or the corresponding resistance compensation circuit may be directly provided on the driving circuit board and connected to the display panel; it may also be provided in a gate driving chip and connected to the display panel through a flip-chip film (COF). It can also be an array substrate gate driver (Gate, Array, GOA), which is directly formed on the display panel; it can also be a process where chips are directly formed on glass (Chip, Glass, COG).
  • COF flip-chip film
  • GOA array substrate gate driver
  • the scan driving circuit includes a plurality of the gate driving chips; wherein at least one of the gate driving chips is provided with the resistance compensation circuit.
  • the scan driving circuit includes a plurality of the gate driving chips; all the gate driving chips have the same resistance compensation circuit, and the scanning driving circuit further includes a position signal line, and The driving circuit board is connected to transmit the corresponding position information of the current scanning line on the display panel; the corresponding position information of the scanning line on the display panel corresponds to the resistance compensation value recorded in the gate driving resistance compensation table; The resistance value selection circuit performs resistance compensation on the output terminal of the current scan driving circuit according to the resistance compensation value.
  • a position value (ID) of the current scanning line transmitted by the position signal line on the display panel.
  • the resistance value selection circuit includes a selection switch and a digital resistance, and the selection switch selects to open the corresponding digital resistance according to the corresponding position value (ID) of the current scanning line on the display panel, so that the corresponding scanning line is connected in series with the corresponding resistance. Value of digital resistance for resistance compensation.
  • the above method is applicable to a series resistance value, a parallel resistance value, and a resistance value existing in series and parallel; only the high-level voltage value of the output gate driving signal needs to reach a preset high level The voltage value only needs to have the effect of changing the potential of the output scanning line.
  • the resistance between the scanning lines in the display panel is different, which causes a delay difference in the gate signal of the scanning line.
  • This application uses an external compensation resistor to adjust the gate driving signal of the scanning line so that the gate driving signal of the scanning line meets The target gate drive signal, and the resistance value of the external compensation resistor is written into the gate drive resistance compensation table. While compensating the impedance difference between the scanning lines, by querying the gate drive resistance compensation table, all the The compensation of the resistance delay of the scanning line can make the output gate driving signals more consistent, thereby improving the situation in which the display effect of the horizontal display area of the display panel is different, so that the screen display of the display panel is uniform and stable.
  • FIG. 1 is an application flowchart of a detection method according to an embodiment of the present application
  • FIG. 2 is a schematic diagram of a display panel according to an embodiment of the present application.
  • FIG. 3 is a schematic diagram of another display panel according to an embodiment of the present application.
  • FIG. 4 is a schematic diagram of another display panel according to an embodiment of the present application.
  • an embodiment of the present application discloses a detection method, particularly a detection method for performing resistance compensation on a scan line of a display panel, including:
  • S12 externally-adjustable compensation resistor, adjust the resistance of the compensation resistor
  • the resistance between the scanning lines in the display panel is different, which results in a delay difference in the gate signal of the scanning line.
  • the gate driving signal of the scanning line is adjusted by an external compensation resistor to enable the gate driving of the scanning line.
  • the signal satisfies the target gate drive signal, and the resistance value of the external compensation resistor is written into the gate drive resistance compensation table.
  • the compensation of the resistance delays of all the scanning lines can make the output gate drive signals more consistent, thereby improving the situation in which the display effect of the horizontal display area of the display panel is different, so that the screen display of the display panel is uniform and stable.
  • the step S11 of obtaining the gate driving signal of one of the scanning lines in the current group of scanning lines in the plurality of scanning lines includes:
  • the step S13 of storing the resistance value of the current compensation resistor as the resistance compensation value of the scanning line of the current group includes:
  • the adjusted gate driving signal When the high-level voltage value of the adjusted gate driving signal reaches a preset high-level voltage threshold, it is considered that the adjusted gate driving signal satisfies a preset target gate driving signal condition.
  • the high-level voltage value of the gate driving signal can be intuitively observed Whether the preset high-level voltage threshold has been reached. If the high-level voltage of the gate drive signal does not reach the preset high-level voltage threshold, continue to adjust the resistance of the compensation resistor, making the adjustment process intuitive and Accurate; furthermore, by adjusting the high-level voltage values of the gate driving signals of all the scanning lines, the gate driving signals with the same high-level voltage values are obtained, and the display effect of the horizontal display area of the display panel is different.
  • the screen display of the display panel is in a uniform and stable state, and the display effect of the display panel is improved.
  • the preset high-level voltage threshold is greater than or equal to a high-level voltage value of a gate driving signal of a scan line furthest from the driving circuit board of the display panel.
  • the preset high-level voltage threshold is equal to the high-level voltage value of the gate drive signal of a scan line furthest from the driving circuit board, the other scanning lines are driven at the furthest distance from the driving circuit board.
  • the high-level voltage value of the gate drive signal of a scan line is used as a condition to meet the preset target gate drive signal; when resistance compensation detection is performed on the scan line, the farthest one from the drive circuit board may not be needed.
  • Scanning line detection and resistance compensation reduce the number of resistance compensation detections and speed up the production process; if the preset high-level voltage threshold is greater than the high level of the gate driving signal of the scanning line farthest from the driving circuit board Voltage value.
  • the detection is started from a scan line farthest from the driving circuit board of the display panel.
  • the scanning line furthest from the driving circuit board of the display panel has the largest resistance. Starting from this scanning line, the smallest resistance value that needs to be compensated for resistance can be determined, and then the resistance value that needs to be compensated for resistance is gradually increased.
  • the resistance value of the resistance compensation shows an upward trend, so that during the statistical process of the resistance value of the resistance compensation of the scanning line, an intuitive and clear change curve is obtained; and
  • the data in the gate drive resistance compensation table of the display shows a sequential change state, which is convenient for the lookup in the gate drive resistance compensation table when the compensation resistor performs resistance compensation on the scanning line during the actual driving process.
  • the gate driving signal of a scanning line farthest from the driving circuit board of the display panel is used as the target gate driving signal condition to start detection.
  • the scanning line furthest from the driving circuit board of the display panel has the largest resistance. Starting from this scanning line, the smallest resistance value that needs to be compensated for resistance can be determined, and then the resistance value that needs to be compensated for resistance is gradually increased.
  • the resistance value of the resistance compensation shows an upward trend, so that during the statistical process of the resistance value of the resistance compensation of the scanning line, an intuitive and clear change curve is obtained; and
  • the data in the gate drive resistance compensation table of the display shows a sequential change state, which is convenient for the lookup in the gate drive resistance compensation table when the compensation resistor performs resistance compensation on the scanning line during the actual driving process.
  • a plurality of adjacent gate driving chips are optional.
  • the similar gate driving chips are a group, and the same resistance value of the compensation resistor is compensated for all the scanning lines in the group, which is convenient for the setting of the metal wires connected to the gate driving chip, and the driving of the adjacent gates is concentrated.
  • the scanning lines fanned out by the chip perform resistance compensation, while making the scanning lines reach the target gate driving signal, reducing the setting of the compensation resistance, and speeding up the process of resistance compensation detection for the scanning lines of the display panel.
  • the scanning lines of one line are a group, and each scanning line is individually compensated.
  • each scanning line is individually compensated, and the resistance value of the compensation resistor for each scanning line is different, which makes the compensation more accurate.
  • the resistance value of each scanning line after compensation is completely consistent, eliminating the display.
  • the difference in the display effect of the horizontal display area of the panel; especially in the use of an array substrate gate driver (GOA) circuit each scanning line is individually compensated, which can make the screen performance of the display panel more Uniform and stable, improve the display effect of the display panel.
  • GOA array substrate gate driver
  • the gate driving signal of a scanning line farthest from the driving circuit board of the display panel is used as the target gate driving signal condition to start detection.
  • the scanning line furthest from the driving circuit board of the display panel has the largest resistance. Starting from this scanning line, the smallest resistance value that needs to be compensated for resistance can be determined, and then the resistance value that needs to be compensated for resistance is gradually increased.
  • the resistance value of the resistance compensation shows an upward trend, so that during the statistical process of the resistance value of the resistance compensation of the scanning line, an intuitive and clear change curve is obtained; and
  • the data in the gate drive resistance compensation table of the display shows a sequential change state, which is convenient for the lookup in the gate drive resistance compensation table when the compensation resistor performs resistance compensation on the scanning line during the actual driving process.
  • the display panel includes a plurality of gate driving chips, and the plurality of sets of scanning lines are set by using a scanning line output by one gate driving chip.
  • the scan line fan-out resistance of a group of gate drive chips has a small difference, they can be grouped into one group. In this way, only the gate drive signal of one scan line in one group needs to be detected to adjust the corresponding compensation resistance. Resistance value, you can determine the resistance value of the compensation resistor required for each scan line in the entire group, speed up the work efficiency, reduce the number of repeated detections, alleviate the pressure of the compensation resistor for resistance compensation, and increase its service life;
  • the group scan line is a group of scan lines output by a gate driving chip, which can save the metal lines connected to the gate driving chip, make the arrangement of the metal lines in the display panel simple, and reduce the cost of the display panel.
  • a driving method particularly a driving method for performing resistance compensation on a scan line of a display panel, is disclosed, including:
  • the corresponding resistance compensation value is queried according to a preset gate drive resistance compensation table, which ensures that the resistance for compensating the output signal conforms to the overall concept of the solution, and obtains the resistance value of the compensation resistor that matches the target output signal. Therefore, the problem of poor display of the display panel is further improved, and the display effect of the horizontal display area of the display panel is different, so that the screen display of the display panel is in a uniform and stable state, and the display effect of the display panel is improved.
  • a display panel 100 is disclosed.
  • the display panel 100 is provided with a plurality of scanning lines 110.
  • the display panel 100 further includes:
  • the resistance compensation circuit 140 is disposed between an output terminal of the scan driving circuit 130 and a corresponding scan line 110;
  • the resistance compensation circuit 140 includes:
  • the memory 141 stores a gate driving resistance compensation table 142
  • the resistance value selection circuit 143 reads the resistance compensation value corresponding to the position of the current scanning line 110 from the memory 141, and performs resistance compensation on the output terminal of the current scanning driving circuit 130 according to the resistance compensation value.
  • resistance compensation circuit 140 between the output terminal of the scan driving circuit 130 and the corresponding scanning line, resistance compensation is performed on the output terminal of the scan driving circuit 130 of the scanning line 110, so that the scanning of the scanning line 110 is performed.
  • the resistance value at the output end of the driving circuit 130 is consistent; after querying the gate driving resistance compensation table 142 stored in the memory 141 to obtain the resistance compensation value of the target driving signal, the resistance value selection circuit 143 performs resistance on the output end of the scanning driving circuit 130 Compensation; while compensating the impedance difference between the scan lines 110, the consistency of the output scan driving signals can be made better, thereby improving the situation in which the display effect of the horizontal display area of the display panel 100 is different, so that the display panel 100 The screen display is uniform and stable, which improves the display effect of the display panel 100.
  • the scan driving circuit 130 or the corresponding resistance compensation circuit 140 may be directly disposed on the driving circuit board 120 and connected to the display panel 100; a gate driving chip 132 may also be provided, and a chip-on-film (COF) ) Is connected to the display panel 100; it can also be an array substrate gate driver (Gate, Array, GOA), directly formed on the display panel 100; or it can be a chip directly formed on glass (Chip, Glass, COG) .
  • COF chip-on-film
  • the setting of the scan driving circuit 130 or the corresponding resistance compensation circuit 140 does not need to be at a specific position, and can be flexibly set on the driving circuit board 120 according to the needs of different display panel 100 manufacturing processes, and the display The panel 100 is connected; the gate driving chip 132 can also be provided and connected to the display panel 100 through a flip-chip film (COF); or it can be an array substrate gate driver (GOA) directly formed on the display panel 100 It can also be a process in which chips are directly formed on glass (Chip, Glass, COG), which can be adapted to a variety of display panels 100.
  • COF flip-chip film
  • GOA array substrate gate driver
  • the scan driving circuit 130 includes a plurality of the gate driving chips 132; wherein, at least one of the gate driving chips 132 is provided with the resistance compensation circuit 140.
  • At least one gate driving chip 132 is provided with a resistance compensation circuit 140 so that the gate driving signal of the scanning line 110 fanned out by the gate driving chip 132 provided with the resistance compensation circuit 140 reaches the target gate driving signal. , Reducing the difference between the gate driving signal and the target gate driving signal of the scanning line 110 provided with the resistance compensation circuit 140, thereby improving the situation where the display effect of the horizontal display area of the display panel 100 is different, and improving the display panel 100 display effect.
  • the scan driving circuit 130 includes a plurality of the gate driving chips 132; all of the gate driving chips 132 have the same resistance compensation circuit 140, and the scanning driving circuit 130 also includes a position signal line 131, which is connected to the driving circuit board 120 and inputs the position information corresponding to the current scanning line 110 on the display panel 100; the position information corresponding to the scanning line 110 on the display panel 100 and the door
  • the resistance compensation value described in the electrode driving resistance compensation table 142 corresponds; the resistance value selection circuit 143 performs resistance compensation on the output terminal of the current scan driving circuit 130 according to the resistance compensation value.
  • the resistance compensation circuit 140 queries the resistance compensation value of the corresponding position information in the memory 141 according to the corresponding position information of the current scanning line 110 on the display panel 100 transmitted by the position signal line in the scan driving circuit 130, and then passes The resistance value selection circuit 143 performs resistance compensation on the output terminal of the current scanning driving circuit 130; the method of querying the gate driving resistance compensation table 142 only by determining the position information of the scanning line 110 makes the compensation resistance value more accurate and saves confirmation requirements
  • the time of the compensated resistance value improves the display effect of the horizontal display area of the display panel 100, and improves the display effect of the display panel 100. At the same time, the working efficiency of the resistance compensation circuit 140 is more efficient.
  • the position signal line 131 and the corresponding position value (ID) of the transmitted current scanning line 110 on the display panel 100 optionally, the position signal line 131 and the corresponding position value (ID) of the transmitted current scanning line 110 on the display panel 100.
  • each gate driving chip 132 will feedback to the detector a position value (ID) that reflects the current scanning line 110 position.
  • ID position value
  • the gate driving chip 132 The voltage output by the look-up table is determined according to the position value (ID). By using the method of determining the position value (ID), the position information of the corresponding scanning line 110 can be directly determined.
  • the resistance value selection circuit 143 includes a selection switch 144 and a digital resistance 145, and the selection switch 144 selects to open the corresponding digital resistance according to the corresponding position value (ID) of the current scanning line 110 on the display panel 100.
  • the corresponding scanning lines 110 are connected in series with digital resistors 145 of corresponding resistance values to perform resistance compensation.
  • the selection switch 144 can be manually turned on or off.
  • the digital resistor 145 is connected in series with the corresponding scanning line 110 to realize resistance compensation.
  • the memory 141 can be directly read.
  • the compensation resistance value is directly represented as the resistance value of the actual digital resistance 145.
  • This embodiment is optional.
  • the above method is applicable to the resistance values of the series resistance, the parallel resistance, and the series resistance in parallel; only the high-level voltage value of the output gate driving signal needs to be preset.
  • the high-level voltage value may have the effect of changing the potential of the output scanning line 110.
  • the method used is not limited to the case of the series resistance value, and the gate driving signal of the scanning line 110 that can change the output can be played in the parallel resistance value, the resistance resistance that exists in series and parallel at the same time.
  • the effect can be applied to a variety of display panels 100.
  • the panel of this application may be a TN panel (full name is Twisted Nematic, that is, a twisted nematic panel), an IPS panel (In-Plane Switching, plane conversion), a VA panel (Multi-domain Vertica Aignment, multi-quadrant vertical alignment technology)
  • TN panel full name is Twisted Nematic, that is, a twisted nematic panel
  • IPS panel In-Plane Switching, plane conversion
  • VA panel Multi-domain Vertica Aignment, multi-quadrant vertical alignment technology

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

Abstract

一种检测方法、显示面板（100）及其驱动方法，检测方法包括：通过外接阻值可调的补偿电阻对扫描线（110）进行分组补偿，并将对应的电阻补偿值写入门极驱动电阻补偿表（142）。

Description

一种检测方法、显示面板及其驱动方法
本申请要求于2018年09月12日提交中国专利局，申请号为CN201811059264.9、发明名称为“一种检测方法、显示面板及其驱动方法”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及显示技术领域，尤其涉及一种检测方法、显示面板及其驱动方法。
背景技术
这里的陈述仅提供与本申请有关的背景信息，而不必然地构成现有技术。
随着科技的发展和进步，液晶显示器由于具备机身薄、省电和辐射低等热点而成为显示器的主流产品，得到了广泛应用。市场上的液晶显示器大部分为背光型液晶显示器，其包括液晶面板及背光模组(Backlight Module)。液晶面板的工作原理是在两片平行的玻璃基板当中放置液晶分子，并在两片玻璃基板上施加驱动电压来控制液晶分子的旋转方向，以将背光模组的光线折射出来产生画面。
其中，薄膜晶体管液晶显示器(Thin Film Transistor-Liquid Crystal Display，TFT-LCD)由于具有低的功耗、优异的画面品质以及较高的生产良率等性能，目前已经逐渐占据了显示领域的主导地位。同样，薄膜晶体管液晶显示器包含液晶面板和背光模组，液晶面板包括彩膜基板(Color Filter Substrate，CF Substrate，也称彩色滤光片基板)、薄膜晶 体管阵列基板(Thin Film Transistor Substrate，TFT Substrate)和光罩(Mask)，上述基板的相对内侧存在透明电极。两片基板之间夹一层液晶分子(Liquid Crystal，LC)。显示面板的显示画面具有显示不均匀的情况。
技术解决方案
本申请要解决的是提供能够使得显示面板的画面显示呈均匀稳定的状态，提升显示面板的显示效果的一种检测方法、显示面板及其驱动方法。
为实现上述目的，本申请提供了一种检测方法，尤其是对显示面板的扫描线进行电阻补偿的检测方法，包括：
在多组扫描线中，获取当前组扫描线中其中一条扫描线的门极驱动信号；
外接阻值可调的补偿电阻，调整补偿电阻的阻值；
当调整后的门极驱动信号满足预设的目标门极驱动信号条件时，存储当前补偿电阻的阻值为当前组的扫描线的电阻补偿值；
将当前组扫描线位置及对应的电阻补偿值写入门极驱动电阻补偿表；
完成当前显示面板的所有组的扫描线的电阻补偿检测。
可选的，所述在多组扫描线中，获取当前组扫描线中其中一条扫描线的门极驱动信号的步骤中，包括：
检测获取到的门极驱动信号的高电平电压值；
所述当调整后的门极驱动信号满足预设的目标门极驱动信号条件时，存储当前补偿电阻的阻值为当前组的扫描线的电阻补偿值的步骤中，包括：
当调整后的门极驱动信号的高电平电压值到达预设的高电平电压阈值时，认为调整后的门极驱动信号满足预设的目标门极驱动信号条件。
可选的，所述预设的高电平电压阈值大于或等于所述距离显示面板的驱动电路板最远的一条扫描线的门极驱动信号的高电平电压值。
可选的，从距离显示面板的驱动电路板最远的一条扫描线开始检测。
可选的，以距离显示面板的驱动电路板最远的一条扫描线的门极驱动信号为目标门极驱动信号条件，开始检测。
可选的，显示面板包括多个门极驱动芯片,所述的多组扫描线以一个门极驱动芯片输出的扫描线为一组。
可选的，多个相邻近的所述门极驱动芯片为一组。
可选的，一条线所述扫描线为一组，对每个扫描线单独进行补偿。
本申请还公开了一种驱动方法，尤其是一种对显示面板的扫描线进行电阻补偿的驱动方法，包括：
根据当前数据线所在位置，从预设的门极驱动电阻补偿表中 查询对应的电阻补偿值对输出的信号进行补偿。
本申请还公开了一种显示面板，所述显示面板上设有多条扫描线；所述的显示面板还包括：
驱动电路板、扫描驱动电路及电阻补偿电路；
所述电阻补偿电路设置在所述扫描驱动电路的输出端和对应的扫描线之间；
其中，所述电阻补偿电路包括：
存储器，储存有门极驱动电阻补偿表；
阻值选择电路，从存储器中读取与当前扫描线位置对应的电阻补偿值，并根据所述电阻补偿值对当前扫描驱动电路输出端进行电阻补偿。
可选的，所述的扫描驱动电路或对应的电阻补偿电路可以直接设置在驱动电路板上,与显示面板连接；也可以设置门极驱动芯片内，通过覆晶薄膜(COF)与显示面板连接；也可以为阵列基板栅极驱动(Gate Driver on Array，GOA)，直接形成在显示面板上；也可以为芯片直接形成在玻璃上的工艺(Chip on Glass，COG)。
可选的，所述扫描驱动电路包括多个所述门极驱动芯片；其中，至少一个所述门极驱动芯片内设置有所述电阻补偿电路。
可选的，所述扫描驱动电路包括多个所述门极驱动芯片；所有的所述门极驱动芯片内都有同样的所述电阻补偿电路，所述扫描驱动电路还包括位置信号线，与所述驱动电路板连接，传输当前扫描线在显 示面板上对应的位置信息；所述扫描线在显示面板上对应的位置信息与所述门极驱动电阻补偿表中记载的电阻补偿值对应；所述阻值选择电路，根据所述电阻补偿值对当前扫描驱动电路输出端进行电阻补偿。
可选的，所述位置信号线传输的当前扫描线在显示面板上对应的位置值(ID)。
可选的，阻值选择电路包括选择开关和数位电阻，所述选择开关根据当前扫描线在显示面板上对应的位置值(ID)选择打开对应的数位电阻，以使得对应的扫描线串联对应阻值的数位电阻进行电阻补偿。
可选的，上述方法适用于串联电阻阻值、并联电阻阻值和串联并联同时存在的电阻阻值中；只需要使输出的门极驱动信号的高电平电压值达到预设的高电平电压值，起到能改变输出的扫描线的电位的效果即可。
显示面板中的扫描线之间电阻不同，而造成扫描线的门极信号存在延迟差异，本申请通过外接补偿电阻，对扫描线的门极驱动信号进行调整，使得扫描线的门极驱动信号满足目标门极驱动信号，而外接的补偿电阻的阻值写入门极驱动电阻补偿表中，在实现补偿扫描线之间的阻抗差异的同时，通过查询门极驱动电阻补偿表的方式，对所有的扫描线的电阻延迟实现补偿，能够使得输出的门极驱动信号的一致性更好，进而改善显示面板的水平显示区域的显示效果存在差别的情况，使得显示面板的画面显示呈均匀稳定的状态，提升显示面板的显示效果；通过内设门极驱动电阻补偿表，可以根据需要设置或者改变对应扫描线的电 阻补偿值，一旦质检过程中出现问题，可以不改变硬件，而仅仅通过改变门极驱动电阻补偿表来修复显示面板，提高显示面板的良率。
附图说明
所包括的附图用来提供对本申请实施例的进一步的理解，其构成了说明书的一部分，用于例示本申请的实施方式，并与文字描述一起来阐释本申请的原理。显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。在附图中：
图1是本申请实施例一种检测方法的应用流程图；
图2是本申请实施例一种显示面板的示意图；
图3是本申请实施例另一种显示面板的示意图；
图4是本申请实施例另一种显示面板的示意图。
本发明的实施方式
这里所公开的具体结构和功能细节仅仅是代表性的，并且是用于描述本申请的示例性实施例的目的。但是本申请可以通过许多替换形式来具体实现，并且不应当被解释成仅仅受限于这里所阐述的实施例。
在本申请的描述中，需要理解的是，术语“中心”、“横向”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请 的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本申请的描述中，除非另有说明，“多个”的含义是两个或两个以上。另外，术语“包括”及其任何变形，意图在于覆盖不排他的包含。
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本申请中的具体含义。
这里所使用的术语仅仅是为了描述具体实施例而不意图限制示例性实施例。除非上下文明确地另有所指，否则这里所使用的单数形式“一个”、“一项”还意图包括复数。还应当理解的是，这里所使用的术语“包括”和/或“包含”规定所陈述的特征、整数、步骤、操作、单元和/或组件的存在，而不排除存在或添加一个或更多其他特征、整数、步骤、操作、单元、组件和/或其组合。
下面结合附图和实施例对本申请作进一步说明。
参考图1所示，本申请实施例公布了一种检测方法，尤其是一种对显示面板的扫描线进行电阻补偿的检测方法，包括：
S11：在多组扫描线中，获取当前组扫描线中其中一条扫描线的门极驱动信号；
S12：外接阻值可调的补偿电阻，调整补偿电阻的阻值；
S13：当调整后的门极驱动信号满足预设的目标门极驱动信号条件时，存储当前补偿电阻的阻值为当前组的扫描线的电阻补偿值；
S14：将当前组扫描线位置及对应的电阻补偿值写入门极驱动电阻补偿表；
S15：完成当前显示面板的所有组的扫描线的电阻补偿检测。
显示面板中的扫描线之间电阻不同，而造成扫描线的门极信号存在延迟差异，本方案中，通过外接补偿电阻，对扫描线的门极驱动信号进行调整，使得扫描线的门极驱动信号满足目标门极驱动信号，而外接的补偿电阻的阻值写入门极驱动电阻补偿表中，在实现补偿扫描线之间的阻抗差异的同时，通过查询门极驱动电阻补偿表的方式，对所有的扫描线的电阻延迟实现补偿，能够使得输出的门极驱动信号的一致性更好，进而改善显示面板的水平显示区域的显示效果存在差别的情况，使得显示面板的画面显示呈均匀稳定的状态，提升显示面板的显示效果；通过内设门极驱动电阻补偿表，可以根据需要设置或者改变对应扫描线的电阻补偿值，一旦质检过程中出现问题，可以不改变硬件，而仅仅通过改变门极驱动电阻补偿表来修复显示面板，提高显示面板的良率。
本实施例可选的，所述在多组扫描线中，获取当前组扫描线中其中一条扫描线的门极驱动信号的步骤S11中，包括：
检测获取到的门极驱动信号的高电平电压值；
所述当调整后的门极驱动信号满足预设的目标门极驱动信号条件时，存储当前补偿电阻的阻值为当前组的扫描线的电阻补偿值的步骤S13中，包括：
当调整后的门极驱动信号的高电平电压值到达预设的高电平电压阈值时，认为调整后的门极驱动信号满足预设的目标门极驱动信号条件。
本方案中，通过调整补偿电阻的阻值，使得门极驱动信号的高电平电压值达到预设的高电平电压阈值的方法，可以直观的观测到门极驱动信号的高电平电压值是否达到预设的高电平电压阈值，如果门极驱动信号的高电平电压值没有达到预设的高电平电压阈值，则继续对补偿电阻的阻值进行调节，使得调节的过程直观且准确；进而通过对所有扫描线的门极驱动信号的高电平电压值进行调整，获得高电平电压值一致的门极驱动信号，改善显示面板的水平显示区域的显示效果存在差别的情况，使得显示面板的画面显示呈均匀稳定的状态，提升显示面板的显示效果。
本实施例可选的，所述预设的高电平电压阈值大于或等于所述距离显示面板的驱动电路板最远的一条扫描线的门极驱动信号的高电平电压值。
本方案中，如果预设的高电平电压阈值等于距离驱动电路板最远的一条扫描线的门极驱动信号的高电平电压值，则其他扫描线，均 以距离驱动电路板最远的一条扫描线的门极驱动信号的高电平电压值，作为满足预设的目标门极驱动信号的条件；在对扫描线进行电阻补偿检测时，可以不需要对距离驱动电路板最远的一条扫描线进行检测和电阻补偿，降低了电阻补偿检测的次数，加快了生产进程；如果预设的高电平电压阈值大于距离驱动电路板最远的一条扫描线的门极驱动信号的高电平电压值，在进行批量调试的时候，不需要提前检测每一个显示面板距离驱动电路最远的一条扫描线的门极驱动信号的高电平电压值，可以根据需要调整高电平电压的阈值，进而调整显示面板中全部扫描线所需要的补偿电阻的阻值，在达到扫描线的门极驱动信号一致的同时，得到所需要的显示面板的扫描线的门极驱动信号。
本实施例可选的，从距离显示面板的驱动电路板最远的一条扫描线开始检测。
本方案中，距离显示面板的驱动电路板最远的扫描线的电阻最大，从此扫描线开始检测，可以确定需要进行电阻补偿的最小的阻值后，逐渐向需要进行电阻补偿的阻值更多的扫描线检测；另外，在检测的过程中，电阻补偿的阻值呈现上升的趋势，使得对扫描线的电阻补偿的阻值进行统计的过程中，得到直观且清楚的变化曲线；且使得形成的门极驱动电阻补偿表中的数据表现出顺序变化的状态，便于实际驱动过程中，补偿电阻在对扫描线进行电阻补偿时，在门极驱动电阻补偿表中的查找。
本实施例可选的，以距离显示面板的驱动电路板最远的一条 扫描线的门极驱动信号为目标门极驱动信号条件，开始检测。
本方案中，距离显示面板的驱动电路板最远的扫描线的电阻最大，从此扫描线开始检测，可以确定需要进行电阻补偿的最小的阻值后，逐渐向需要进行电阻补偿的阻值更多的扫描线检测；另外，在检测的过程中，电阻补偿的阻值呈现上升的趋势，使得对扫描线的电阻补偿的阻值进行统计的过程中，得到直观且清楚的变化曲线；且使得形成的门极驱动电阻补偿表中的数据表现出顺序变化的状态，便于实际驱动过程中，补偿电阻在对扫描线进行电阻补偿时，在门极驱动电阻补偿表中的查找。
本实施例可选的，多个相邻近的所述门极驱动芯片为一组。
本方案中，相近的门极驱动芯片为一组，对组内的所有扫描线补偿同样的补偿电阻的阻值，便于连接门极驱动芯片的金属线的设置，集中对相临近的门极驱动芯片所扇出的扫描线进行电阻补偿，在使得扫描线达到目标门极驱动信号的同时，减少补偿电阻的设置，加快对显示面板的扫描线进行电阻补偿检测的进程。
本实施例可选的，一条线所述扫描线为一组，对每个扫描线单独进行补偿。
本方案中，对每个扫描线单独进行补偿，对每条扫描线补偿的补偿电阻的阻值都不同，使得补偿的更加精确，每一个扫描线补偿后的电阻阻值完全高度一致，消除显示面板的水平显示区域的显示效果的差别；尤其在使用阵列基板栅极驱动(Gate Driver on Array，GOA) 电路中，采用对每个扫描线单独进行补偿的方式，可以使得显示面板的画面表现更加均匀稳定，提升显示面板的显示效果。
本实施例可选的，以距离显示面板的驱动电路板最远的一条扫描线的门极驱动信号为目标门极驱动信号条件，开始检测。
本方案中，距离显示面板的驱动电路板最远的扫描线的电阻最大，从此扫描线开始检测，可以确定需要进行电阻补偿的最小的阻值后，逐渐向需要进行电阻补偿的阻值更多的扫描线检测；另外，在检测的过程中，电阻补偿的阻值呈现上升的趋势，使得对扫描线的电阻补偿的阻值进行统计的过程中，得到直观且清楚的变化曲线；且使得形成的门极驱动电阻补偿表中的数据表现出顺序变化的状态，便于实际驱动过程中，补偿电阻在对扫描线进行电阻补偿时，在门极驱动电阻补偿表中的查找。
本实施例可选的，显示面板包括多个门极驱动芯片,所述的多组扫描线以一个门极驱动芯片输出的扫描线为一组。
因为一组门极驱动芯片扇出的扫描线的电阻差异较小，可以归拢为一组，这样，只需要检测一组中的其中一条扫描线的门极驱动信号，来调节对应的补偿电阻的阻值，就可以确定整组中每条扫描线所需要的补偿电阻的阻值，加快工作效率，减少重复检测的次数，缓解补偿电阻的进行电阻补偿的压力，增加其使用寿命；同时将多组扫描线以一个门极驱动芯片输出的扫描线为一组，可以节约连接门极驱动芯片的金属线，使得显示面板内的金属线排布简单，降低显示面板的成本。
作为本申请的另一实施例，公开了一种驱动方法，尤其是一种对显示面板的扫描线进行电阻补偿的驱动方法，包括：
根据当前数据线所在位置，从预设的门极驱动电阻补偿表中查询对应的电阻补偿值对输出的信号进行补偿。
本方案中，根据预设的门极驱动电阻补偿表来查询对应的电阻补偿值，保证了对输出的信号进行补偿的电阻符合本方案的整体构思，得到符合目标输出信号的补偿电阻的阻值，进而改善显示面板显示不佳的问题，改善显示面板的水平显示区域的显示效果存在差别的情况，使得显示面板的画面显示呈均匀稳定的状态，提升显示面板的显示效果。
作为本申请的另一实施例，参考图2至图4所示，公开了一种显示面板100，所述显示面板100上设有多条扫描线110；所述的显示面板100还包括：
驱动电路板120、扫描驱动电路130及电阻补偿电路140；
所述电阻补偿电路140设置在所述扫描驱动电路130的输出端和对应的扫描线110之间；
其中，所述电阻补偿电路140包括：
存储器141，储存有门极驱动电阻补偿表142；
阻值选择电路143，从存储器141中读取与当前扫描线110位置对应的电阻补偿值，并根据所述电阻补偿值对当前扫描驱动电路130输出端进行电阻补偿。
本方案中，通过设置在扫描驱动电路130的输出端和对应的 扫描线之间设置电阻补偿电路140，实现对扫描线110的扫描驱动电路130的输出端进行电阻补偿，使得扫描线110的扫描驱动电路130的输出端的阻值一致；通过查询存储器141所存储的门极驱动电阻补偿表142，得到实现目标驱动信号的电阻补偿值后，阻值选择电路143对扫描驱动电路130输出端进行电阻补偿；在实现补偿扫描线110之间的阻抗差异的同时，能够使得输出的扫描驱动信号的一致性更好，进而改善显示面板100的水平显示区域的显示效果存在差别的情况，使得显示面板100的画面显示呈均匀稳定的状态，提升显示面板100的显示效果。
可选的，所述的扫描驱动电路130或对应的电阻补偿电路140可以直接设置在驱动电路板120上,与显示面板100连接；也可以设置门极驱动芯片132内，通过覆晶薄膜(COF)与显示面板100连接；也可以为阵列基板栅极驱动(Gate Driver on Array，GOA)，直接形成在显示面板100上；也可以为芯片直接形成在玻璃上的工艺(Chip on Glass，COG)。
本方案中，扫描驱动电路130或对应的电阻补偿电路140的设置并不需要在特定的位置，可以根据不同的显示面板100制程过程中的需要，灵活的设置在驱动电路板120上，与显示面板100连接；也可以设置门极驱动芯片132内，通过覆晶薄膜(COF)与显示面板100连接；也可以为阵列基板栅极驱动(Gate Driver on Array，GOA)，直接形成在显示面板100上；也可以为芯片直接形成在玻璃上的工艺(Chip on Glass，COG)，可以适应多种显示面板100。
本实施例可选的，所述扫描驱动电路130包括多个所述门极驱动芯片132；其中，至少一个所述门极驱动芯片132内设置有所述电阻补偿电路140。
本方案中，至少一个门极驱动芯片132内设置有电阻补偿电路140，使得设有电阻补偿电路140的门极驱动芯片132所扇出的扫描线110的门极驱动信号达到目标门极驱动信号，降低设有电阻补偿电路140的扫描线110的门极驱动信号与目标门极驱动信号之间的差异，进而改善显示面板100的水平显示区域的显示效果存在差别的情况，提升显示面板100的显示效果。
本实施例可选的，所述扫描驱动电路130包括多个所述门极驱动芯片132；所有的所述门极驱动芯片132内都有同样的所述电阻补偿电路140，所述扫描驱动电路130还包括位置信号线131，与所述驱动电路板120连接,输当前扫描线110在显示面板100上对应的位置信息；所述扫描线110在显示面板100上对应的位置信息与所述门极驱动电阻补偿表142中记载的电阻补偿值对应；所述阻值选择电路143，根据所述电阻补偿值对当前扫描驱动电路130输出端进行电阻补偿。
本方案中，电阻补偿电路140根据扫描驱动电路130中的位置信号线所传输的当前扫描线110在显示面板100上对应的位置信息，来查询存储器141中对应位置信息的电阻补偿值，进而通过阻值选择电路143对当前扫描驱动电路130输出端进行电阻补偿；只需要通过扫描线110位置信息的确定来查询门极驱动电阻补偿表142的方法，使得补 偿的阻值更加准确，节省确认需要补偿的阻值的时间，在改善显示面板100的水平显示区域的显示效果存在差别的情况，提升显示面板100的显示效果的同时，电阻补偿电路140的工作效率更加高效。
本实施例可选的，所述位置信号线131，传输的当前扫描线110在显示面板100上对应的位置值(ID)。
本方案中，在检测阶段，门极驱动电阻补偿表142确定之后，每个门极驱动芯片132都将反馈给检测者一个可反映当前扫描线110位置的位置值(ID)，门极驱动芯片132根据位置值(ID)确定查表输出的电压，通过采用确定位置值(ID)的方式，可以直接确定对应的扫描线110的位置信息。
本实施例可选的，阻值选择电路143包括选择开关144和数位电阻145，所述选择开关144根据当前扫描线110在显示面板100上对应的位置值(ID)选择打开对应的数位电阻，以使得对应的扫描线110串联对应阻值的数位电阻145进行电阻补偿。
本方案中，选择开关144可以机动的开启或者关闭，当选择开关144开启后，数位电阻145与对应的扫描线110串联实现电阻补偿；使用数位电阻145的方式，可以直接将存储器141中读取的补偿电阻值直接呈现成实际的数位电阻145的阻值。
本实施例可选的，上述方法适用于串联电阻阻值、并联电阻阻值和串联并联同时存在的电阻阻值中；只需要使输出的门极驱动信号的高电平电压值达到预设的高电平电压值，起到能改变输出的扫描线 110的电位的效果即可。
本方案中，所采用的方法不仅仅限于串联电阻阻值的情况中，在并联电阻阻值、串联和并联同时存在的电阻阻值中都可以起到改变输出的扫描线110的门极驱动信号的效果，可以适用于多种显示面板100。
本申请的面板可以是TN面板(全称为Twisted Nematic，即扭曲向列型面板)、IPS面板(In-Plane Switching，平面转换)、VA面板(Multi-domain Vertica Aignment，多象限垂直配向技术)，当然，也可以是其他类型的面板，适用即可。
以上内容是结合具体的优选实施方式对本申请所作的进一步详细说明，不能认定本申请的具体实施只局限于这些说明。对于本申请所属技术领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干简单推演或替换，都应当视为属于本申请的保护范围。

Claims (19)

  1. 一种检测方法，包括：
    在多组扫描线中，获取当前组扫描线中其中一条扫描线的门极驱动信号；
    外接阻值可调的补偿电阻，调整补偿电阻的阻值；
    当调整后的门极驱动信号满足预设的目标门极驱动信号条件时，存储当前补偿电阻的阻值为当前组的扫描线的电阻补偿值；
    将当前组扫描线位置及对应的电阻补偿值写入门极驱动电阻补偿表；
    完成当前显示面板的所有组的扫描线的电阻补偿检测。
  2. 如权利要求1所述的一种检测方法，其中，所述在多组扫描线中，获取当前组扫描线中其中一条扫描线的门极驱动信号的步骤中，包括：
    检测获取到的门极驱动信号的高电平电压值；
    所述当调整后的门极驱动信号满足预设的目标门极驱动信号条件时，存储当前补偿电阻的阻值为当前组的扫描线的电阻补偿值的步骤中，包括：
    当调整后的门极驱动信号的高电平电压值到达预设的高电平电压阈值时，认为调整后的门极驱动信号满足预设的目标门极驱动信号条件。
  3. 如权利要求2所述的一种检测方法，其中，所述预设的高电平电压阈值大于或等于所述距离显示面板的驱动电路板最远的一条扫描线的门极驱动信号的高电平电压值。
  4. 如权利要求1所述的一种检测方法，其中,从距离显示面板的驱动电路板最远的一条扫描线开始检测。
  5. 如权利要求2所述的一种检测方法，其中,从距离显示面板的驱动电路板最远的一条扫描线开始检测。
  6. 如权利要求3所述的一种检测方法，其中,从距离显示面板的驱动电路板最远的一条扫描线开始检测。
  7. 如权利要求1所述的一种检测方法，其中,以距离显示面板的驱动电路板最远的一条扫描线的门极驱动信号为目标门极驱动信号条件，开始检测。
  8. 如权利要求2所述的一种检测方法，其中,以距离显示面板的驱动电路板最远的一条扫描线的门极驱动信号为目标门极驱动信号条件，开始检测。
  9. 如权利要求3所述的一种检测方法，其中,以距离显示面板的驱动电路板最远的一条扫描线的门极驱动信号为目标门极驱动信号条件，开始检测。
  10. 如权利要求9所述的一种检测方法，其中,所述显示面板包括多个门极驱动芯片，多个相邻近的所述门极驱动芯片为一组。
  11. 如权利要求1所述的一种检测方法，其中，显示面板包括多个门极驱动芯片,所述的多组扫描线以一个门极驱动芯片输出的扫描线为一组。
  12. 一种驱动方法，包括：
    根据当前数据线所在位置，从预设的门极驱动电阻补偿表中查询对应的电阻补偿值对输出的信号进行补偿。
  13. 一种显示面板，设有多条扫描线；还包括：
    驱动电路板、扫描驱动电路以及电阻补偿电路；
    所述电阻补偿电路设置在所述扫描驱动电路的输出端和对应的扫描线之间；
    所述电阻补偿电路包括：
    存储器，储存有门极驱动电阻补偿表，
    阻值选择电路，从存储器中读取与当前扫描线位置对应的电阻补偿值，并根据所述电阻补偿值对当前扫描驱动电路输出端进行电阻补偿。
  14. 如权利要求13所述的一种显示面板，其中，所述扫描驱动电路包括多个所述门极驱动芯片；至少一个所述门极驱动芯片内设置有所述电阻补偿电路。
  15. 如权利要求13所述的一种显示面板，其中，所述扫描驱动电路包括多个所述门极驱动芯片；所有的所述门极驱动芯片内都有同样的所述电阻补偿电路，所述扫描驱动电路还包括位置信号线，传输当前扫描线在显示面板上对应的位置信息；所述扫描线在显示面板上对应的位置信息与所述门极驱动电阻补偿表中记载的电阻补偿值对应；所述阻值选择电路，根据所述电阻补偿值对当前扫描驱动电路输出端进行电阻补偿。
  16. 如权利要求13所述的一种显示面板，其中，阻值选择电路包括选择开关和数位电阻，所述选择开关根据当前扫描线在显示面板上对应的位置值选择打开对应的数位电阻，以使得对应的扫描线串联对应阻值的数位电阻进行电阻补偿。
  17. 如权利要求15所述的一种显示面板，其中，阻值选择电路包括选 择开关和数位电阻，所述选择开关根据当前扫描线在显示面板上对应的位置值选择打开对应的数位电阻，以使得对应的扫描线串联对应阻值的数位电阻进行电阻补偿。
  18. 如权利要求14所述的一种显示面板，其中,所述显示面板包括多个门极驱动芯片，多个相邻近的所述门极驱动芯片为一组。
  19. 如权利要求14所述的一种显示面板，其中，显示面板包括多个门极驱动芯片,所述的多组扫描线以一个门极驱动芯片输出的扫描线为一组。
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