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CN114863857A - RC load compensation method and system for display driving device - Google Patents

  • ️Fri Aug 05 2022

CN114863857A - RC load compensation method and system for display driving device - Google Patents

RC load compensation method and system for display driving device Download PDF

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CN114863857A
CN114863857A CN202210501281.3A CN202210501281A CN114863857A CN 114863857 A CN114863857 A CN 114863857A CN 202210501281 A CN202210501281 A CN 202210501281A CN 114863857 A CN114863857 A CN 114863857A Authority
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compensation
load
coefficient
ratio
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张东琪
付浩
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Truly Renshou High end Display Technology Ltd
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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
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Abstract

本发明公开了一种显示驱动装置RC负载补偿方法及系统,方法包括:获取每行栅极线搭载的RC负载数据值;根据RC负载数据值获取每一行栅极线与最大行RC负载数据值之间的RC负载差值;获取每一行栅极线对应的补偿系数;根据RC负载差值与补偿系数获取对应行的RC负载补偿值;系统包括检测单元、计算单元、补偿单元;检测单元用于检测获取每行栅极线搭载的RC负载数据值;计算单元用于根据RC负载数据值计算每一行栅极线与最大行RC负载数据值之间的RC负载差值并计算对应行栅极线的补偿系数;补偿单元用于根据RC负载差值与补偿系数获取对应行的RC负载补偿值对该行进行负载补偿;实施本发明,解决了现有的异形显示屏,在计算补偿值时不够精确的问题。

Figure 202210501281

The invention discloses a RC load compensation method and system for a display driving device. The method includes: acquiring the RC load data value carried by each row of gate lines; and acquiring each row of gate lines and the maximum row RC load data value according to the RC load data value Obtain the compensation coefficient corresponding to each row of gate lines; obtain the RC load compensation value of the corresponding row according to the RC load difference and the compensation coefficient; the system includes a detection unit, a calculation unit, and a compensation unit; The RC load data value carried by each row of gate lines is obtained by detecting; the calculation unit is used to calculate the RC load difference between each row of gate lines and the maximum row RC load data value according to the RC load data value, and calculate the corresponding row of gate lines. The compensation coefficient of the line; the compensation unit is used to obtain the RC load compensation value of the corresponding line according to the RC load difference value and the compensation coefficient to perform load compensation on the line; the implementation of the present invention solves the problem of the existing special-shaped display screen, when calculating the compensation value Inaccurate question.

Figure 202210501281

Description

一种显示驱动装置RC负载补偿方法及系统A kind of display driving device RC load compensation method and system

技术领域technical field

本发明涉及显示屏电测技术领域,特别涉及一种显示驱动装置RC负载补偿方法及系统。The present invention relates to the technical field of electric measurement of display screens, in particular to a method and system for RC load compensation of a display driving device.

背景技术Background technique

随着手机产业的不断发展,全面屏手机的屏体具有较大的屏占比、窄边框的优点,大大提高观者的视觉效果,受到人们广泛关注。在全面屏的制作过程中,在屏体通常分为异形显示区和正常显示区。异形显示区通常设置有开槽等异形结构。因此异形显示区的每条信号线连接的像素的数量会少于正常显示区中每条信号线连接的像素的数量。因此异形显示区的每条信号线的负载会小于正常显示区中每条信号线的负载。从而造成异形显示区和正常显示区中的像素扫描等驱动信号的延迟不同等显示异常现象。With the continuous development of the mobile phone industry, the screen body of the full-screen mobile phone has the advantages of a large screen ratio and a narrow frame, which greatly improves the visual effect of the viewer, and has attracted widespread attention. In the production process of the full screen, the screen body is usually divided into a special-shaped display area and a normal display area. The special-shaped display area is usually provided with special-shaped structures such as slots. Therefore, the number of pixels connected to each signal line in the special-shaped display area is less than the number of pixels connected to each signal line in the normal display area. Therefore, the load of each signal line in the special-shaped display area will be smaller than the load of each signal line in the normal display area. As a result, abnormal display phenomena such as different delays of driving signals such as pixel scanning in the abnormal-shaped display area and the normal display area are caused.

常见的异形形状,如手机显示屏为norch形状,倒圆角形状,车载圆形显示屏形状等,即用户追求显示装置外形的多样性,致使上游生产商需考虑各种各样的显示屏形状,而不再是中规中矩的矩形形状。Common special-shaped shapes, such as the mobile phone display screen is norch shape, rounded corner shape, vehicle circular display shape, etc., that is, users pursue the diversity of display device shapes, so upstream manufacturers need to consider a variety of display screen shapes , instead of a decent rectangle shape.

非矩形显示区域的显示屏由于和正常区域的显示区域因为RC Loading存在差异,从而会导致异型区域与正常区域之间存在显示效果差异,为了降低和消除该类显示效果差异,就需要进行驱动的RC Loading补偿。Due to the difference between the display area of the non-rectangular display area and the display area of the normal area due to RC Loading, there will be a difference in display effect between the abnormal area and the normal area. In order to reduce and eliminate this type of display effect difference, it is necessary to drive the RC Loading compensation.

中国专利申请CN 108766236 A中公开一种显示面板及显示装置,通过采用补偿单元对显示面板的数据线或扫描线进行负载补偿,使显示面板上每条数据线或扫描线的负载量相同,数据驱动电路的数据写入能力或扫描驱动电路的开关能力相同,进而显示面板各区域的亮度也相同,期望以此来消除显示亮度不匀等不良。但该申请并没有考虑到栅极驱动电路的衰减情况以及工艺能力和产线波动情况,在计算补偿值时不够精确,效果也会打折扣。Chinese patent application CN 108766236 A discloses a display panel and a display device. By using a compensation unit to perform load compensation on data lines or scan lines of the display panel, the load amount of each data line or scan line on the display panel is the same, and the data The data writing capability of the drive circuit and the switching capability of the scan drive circuit are the same, and the brightness of each area of the display panel is also the same. It is expected to eliminate defects such as uneven display brightness. However, the application does not take into account the attenuation of the gate drive circuit, the process capability and the fluctuation of the production line, and the calculation of the compensation value is not accurate enough, and the effect will be reduced.

发明内容SUMMARY OF THE INVENTION

现有的异形显示屏,在计算补偿值时,未考虑栅极驱动电路的衰减情况以及工艺能力和产线波动情况等因素,导致补偿效果打折扣。In the existing special-shaped display screen, when calculating the compensation value, factors such as the attenuation of the gate drive circuit, the process capability and the fluctuation of the production line are not considered, which leads to a reduction in the compensation effect.

针对上述问题,提出一种显示驱动装置RC负载补偿方法及系统,通过获取每行栅极线搭载的RC负载数据值;并计算每一行栅极线与最大行RC负载数据值之间的RC负载差值;参考栅极线传输过程中的衰减系数及工艺波动系数来计算每一行的RC负载补偿值;解决了现有的异形显示屏,在计算补偿值时不够精确的问题。Aiming at the above problems, a method and system for compensating the RC load of a display drive device are proposed. By obtaining the RC load data value carried by each row of gate lines, and calculating the RC load between each row of gate lines and the maximum row RC load data value The difference value; the RC load compensation value of each line is calculated with reference to the attenuation coefficient and process fluctuation coefficient during the transmission process of the gate line; the problem that the existing special-shaped display screen is not accurate in calculating the compensation value is solved.

第一方面,一种显示驱动装置RC负载补偿方法,包括:In a first aspect, a method for compensating an RC load of a display driving device, comprising:

步骤100、获取每行栅极线搭载的RC负载数据值;Step 100, acquiring the RC load data value carried by each row of gate lines;

步骤200、根据所述RC负载数据值获取每一行栅极线与最大行RC负载数据值之间的RC负载差值;Step 200: Obtain the RC load difference between each row of gate lines and the maximum row RC load data value according to the RC load data value;

步骤300、获取每一行栅极线对应的补偿系数;Step 300, obtaining the compensation coefficient corresponding to each row of gate lines;

步骤400、根据所述RC负载差值与所述补偿系数获取对应行的RC负载补偿值;Step 400, obtaining the RC load compensation value of the corresponding row according to the RC load difference value and the compensation coefficient;

其中,所述补偿系数包括栅极线衰减系数及工艺波动系数。Wherein, the compensation coefficient includes a gate line attenuation coefficient and a process fluctuation coefficient.

结合本发明所述的显示驱动装置RC负载补偿方法,第一种可能的实施方式中,所述步骤300包括:With reference to the RC load compensation method for a display driving device according to the present invention, in a first possible implementation manner, the step 300 includes:

步骤310、利用最小行RC负载数据值和最大行RC Loading数据值的比值计算第一比值系数;Step 310, using the ratio of the minimum row RC load data value and the maximum row RC Loading data value to calculate the first ratio coefficient;

步骤320、利用所述第一比值系数及补偿区域个数计算第二比值系数。Step 320: Calculate a second ratio coefficient by using the first ratio coefficient and the number of compensation regions.

结合本发明第一种可能的实施方式,第二种可能的实施方式中,所述步骤320包括:With reference to the first possible implementation manner of the present invention, in the second possible implementation manner, the step 320 includes:

步骤321、利用所述第一比值系数确定所述补偿区域个数;Step 321, using the first ratio coefficient to determine the number of the compensation regions;

步骤322、计算最大行RC负载数据比值与最小行RC负载数据比值之间的比值差值;Step 322, calculating the ratio difference between the maximum row RC load data ratio and the minimum row RC load data ratio;

步骤323、将所述比值差值与所述补偿区域个数之间的比值作为第二比值系数。Step 323: Use the ratio between the ratio difference and the number of compensation regions as a second ratio coefficient.

结合本发明第二种可能的实施方式,第三种可能的实施方式中,所述步骤321包括:With reference to the second possible implementation manner of the present invention, in the third possible implementation manner, the step 321 includes:

步骤3211、若所述第一比值系数小于第一比值阈值,则所述补偿区域个数取值为第一范围;Step 3211: If the first ratio coefficient is less than the first ratio threshold, the number of the compensation regions is set to be the first range;

步骤3212、若所述第一比值系数在所述第一比值阈值与第二比值阈值之间,则所述补偿区域个数为第二范围;Step 3212: If the first ratio coefficient is between the first ratio threshold and the second ratio threshold, the number of compensation regions is the second range;

步骤3213、若所述第一比值系数大于第二比值阈值,则所述补偿区域个数为一常数值N;Step 3213: If the first ratio coefficient is greater than the second ratio threshold, the number of the compensation regions is a constant value N;

其中,所述第一比值阈值小于所述第二比值阈值;Wherein, the first ratio threshold is smaller than the second ratio threshold;

所述常数值、第二范围、第一范围为连续的逐渐增大的数据范围。The constant value, the second range, and the first range are continuous and gradually increasing data ranges.

结合本发明第三种可能的实施方式,第四种可能的实施方式中,所述步骤3212包括:With reference to the third possible implementation manner of the present invention, in the fourth possible implementation manner, the step 3212 includes:

步骤32121、将所述第一比值阈值与第二比值阈值之间的数据范围分割成多个连续的依次增大的比值范围;Step 32121: Divide the data range between the first ratio threshold and the second ratio threshold into a plurality of successively increasing ratio ranges;

步骤32122、对应所述多个连续的依次增大的比值范围,所述第二范围为依次变小的连续的整数值;Step 32122: Corresponding to the plurality of successive successively increasing ratio ranges, the second range is a successively smaller successive integer value;

步骤32123、令最大比值范围对应的第二范围中的最小的整数值大于所述常数值N。Step 32123: Make the smallest integer value in the second range corresponding to the maximum ratio range greater than the constant value N.

结合本发明第四种可能的实施方式,第五种可能的实施方式中,所述补偿方法还包括:With reference to the fourth possible implementation manner of the present invention, in the fifth possible implementation manner, the compensation method further includes:

步骤500、计算每一栅极线的驱动电路负载;Step 500, calculating the drive circuit load of each gate line;

步骤600、根据驱动电路负载计算负载补偿的衰减系数。Step 600: Calculate the attenuation coefficient of the load compensation according to the load of the drive circuit.

结合本发明第五种可能的实施方式,第六种可能的实施方式中,所述补偿方法包括:With reference to the fifth possible implementation manner of the present invention, in the sixth possible implementation manner, the compensation method includes:

步骤700、将第二比值系数与前一区域常数之间的积值作为修正比值系数;Step 700, taking the product between the second ratio coefficient and the previous regional constant as the modified ratio coefficient;

步骤800、对所述第一比值系数、修正比值系数、栅极驱动线衰减系数及工艺波动系数求和,获取补偿系数。Step 800 , summing the first ratio coefficient, the modified ratio coefficient, the gate driving line attenuation coefficient and the process fluctuation coefficient to obtain a compensation coefficient.

第二方面,一种显示驱动装置RC负载补偿系统,采用第一方面所述的补偿方法,包括:In a second aspect, an RC load compensation system for a display driving device adopts the compensation method described in the first aspect, including:

检测单元;detection unit;

计算单元;computing unit;

补偿单元;compensation unit;

所述检测单元用于检测获取每行栅极线搭载的RC负载数据值;The detection unit is used to detect and obtain the RC load data value carried by each row of gate lines;

所述计算单元用于根据所述RC负载数据值计算每一行栅极线与最大行RC负载数据值之间的RC负载差值并计算对应行栅极线的补偿系数;The calculation unit is configured to calculate the RC load difference between each row of gate lines and the maximum row RC load data value according to the RC load data value and calculate the compensation coefficient of the corresponding row of gate lines;

所述补偿单元用于根据所述RC负载差值与所述补偿系数获取对应行的RC负载补偿值对该行进行负载补偿;The compensation unit is configured to obtain the RC load compensation value of the corresponding row according to the RC load difference value and the compensation coefficient to perform load compensation on the row;

其中,所述补偿系数包括栅极线衰减系数及工艺波动系数。Wherein, the compensation coefficient includes a gate line attenuation coefficient and a process fluctuation coefficient.

结合第二方面所述的显示驱动装置RC负载补偿系统,第一种可能的实施方式中,所述计算单元包括:With reference to the RC load compensation system for the display drive device described in the second aspect, in a first possible implementation manner, the computing unit includes:

比例单元;proportional unit;

所述比例单元用于利用最小行RC负载数据值和最大行RC Loading数据值的比值获取第一比值系数并利用所述第一比值系数及补偿区域个数获取第二比值系数。The proportional unit is configured to obtain a first ratio coefficient by using the ratio of the minimum row RC loading data value to the maximum row RC Loading data value, and obtain a second ratio coefficient by using the first ratio coefficient and the number of compensation regions.

结合第二方面第一种可能的实施方式,第二种可能的实施方式中,所述计算单元还包括:With reference to the first possible implementation manner of the second aspect, in the second possible implementation manner, the computing unit further includes:

确定单元;determine the unit;

所述确定单元用于利用所述第一比值系数确定所述补偿区域个数。The determining unit is configured to use the first ratio coefficient to determine the number of the compensation regions.

实施本发明所述的显示驱动装置RC负载补偿方法及系统,通过获取每行栅极线搭载的RC负载数据值;并计算每一行栅极线与最大行RC负载数据值之间的RC负载差值;参考栅极线传输过程中的衰减系数及工艺波动系数来计算每一行的RC负载补偿值;解决了现有的异形显示屏,在计算补偿值时不够精确的问题。To implement the RC load compensation method and system for a display drive device according to the present invention, obtain the RC load data value carried by each row of gate lines; and calculate the RC load difference between each row of gate lines and the maximum row RC load data value Calculate the RC load compensation value of each line with reference to the attenuation coefficient and process fluctuation coefficient during the transmission process of the gate line; solve the problem that the existing special-shaped display screen is not accurate enough when calculating the compensation value.

附图说明Description of drawings

为了更清楚地说明本发明实施例中的技术方案,下面将对实施例描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

图1是本发明中显示驱动装置RC负载补偿方法第一实施例示意图;FIG. 1 is a schematic diagram of a first embodiment of a display driving device RC load compensation method according to the present invention;

图2是本发明中显示驱动装置RC负载补偿方法第二实施例示意图;FIG. 2 is a schematic diagram of a second embodiment of the RC load compensation method for the display drive device according to the present invention;

图3是本发明中显示驱动装置RC负载补偿方法第三实施例示意图;3 is a schematic diagram of a third embodiment of the RC load compensation method for the display drive device according to the present invention;

图4是本发明中显示驱动装置RC负载补偿方法第四实施例示意图;FIG. 4 is a schematic diagram of the fourth embodiment of the RC load compensation method for the display drive device according to the present invention;

图5是本发明中显示驱动装置RC负载补偿方法第五实施例示意图;5 is a schematic diagram of a fifth embodiment of the RC load compensation method for the display drive device according to the present invention;

图6是本发明中显示驱动装置RC负载补偿方法第六实施例示意图;FIG. 6 is a schematic diagram of a sixth embodiment of the RC load compensation method for the display drive device according to the present invention;

图7是本发明中显示驱动装置RC负载补偿方法第七实施例示意图;FIG. 7 is a schematic diagram of a seventh embodiment of a method for compensating an RC load of a display drive device according to the present invention;

图8是本发明中显示驱动装置RC负载补偿系统第一实施例示意图;FIG. 8 is a schematic diagram of the first embodiment of the RC load compensation system of the display drive device according to the present invention;

图9是本发明中显示驱动装置RC负载补偿系统第二实施例示意图;FIG. 9 is a schematic diagram of the second embodiment of the display drive device RC load compensation system in the present invention;

图10是常见手机类显示屏外框图示意图;Figure 10 is a schematic diagram of an external block diagram of a common mobile phone display screen;

图11是手机类显示屏norch区域的局部放大图;Figure 11 is a partial enlarged view of the norch area of the mobile phone display;

附图中各数字所指代的部位名称为:10——检测单元、20——计算单元、21——比例单元、22——确定单元、30——补偿单元。The names of the parts referred to by the numbers in the drawings are: 10—detection unit, 20—calculation unit, 21—proportion unit, 22—determination unit, 30—compensation unit.

具体实施方式Detailed ways

下面将结合发明中的附图,对本发明中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明的一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有付出创造性劳动前提下所获得的其他实施例,都属于本发明保护的范围。The technical solutions in the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

除非另有定义,本文所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同。本文中在本发明的说明书中所使用的术语只是为了描述具体的实施例的目的,不是旨在于限制本发明。本文所使用的术语“及/或”包括一个或多个相关的所列项目的任意的和所有的组合。Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

现有的异形显示屏,在计算补偿值时,未考虑栅极驱动电路的衰减情况以及工艺能力和产线波动情况等因素,导致补偿效果打折扣。In the existing special-shaped display screen, when calculating the compensation value, factors such as the attenuation of the gate drive circuit, the process capability and the fluctuation of the production line are not considered, which leads to a reduction in the compensation effect.

针对上述问题,提出一种显示驱动装置RC负载补偿方法及系统。Aiming at the above problems, a method and system for compensating the RC load of a display driving device are proposed.

实施例1Example 1

如图1,图1是本发明中显示驱动装置RC负载补偿方法第一实施例示意图,一种显示驱动装置RC负载补偿方法,包括:步骤100、获取每行栅极线搭载的RC负载数据值;步骤200、根据RC负载数据值获取每一行栅极线与最大行RC负载数据值之间的RC负载差值;步骤300、获取每一行栅极线对应的补偿系数;步骤400、根据RC负载差值与补偿系数获取对应行的RC负载补偿值;其中,补偿系数包括栅极线衰减系数及工艺波动系数。FIG. 1 is a schematic diagram of the first embodiment of the RC load compensation method for a display driving device according to the present invention. A method for compensating the RC load of a display driving device includes: Step 100: Obtaining the RC load data value carried by each row of gate lines ; Step 200, obtain the RC load difference between each row of gate lines and the maximum row RC load data value according to the RC load data value; Step 300, obtain the corresponding compensation coefficient of each row of gate lines; Step 400, according to the RC load The difference value and the compensation coefficient obtain the RC load compensation value of the corresponding row; wherein, the compensation coefficient includes the gate line attenuation coefficient and the process fluctuation coefficient.

如图10和11,图10是常见手机类显示屏外框图示意图,图11是手机类显示屏norch区域的局部放大图;在显示设备norch区域,倒圆角区域和正常区域的栅极走线对应的RCLoading有着明显的差异,需要对不同栅极走线对应的RC Loading进行驱动补偿。As shown in Figures 10 and 11, Figure 10 is a schematic diagram of the external block diagram of a common mobile phone display screen, and Figure 11 is a partial enlarged view of the norch area of the mobile phone type display screen; in the norch area of the display device, the gate traces in the rounded corner area and the normal area are The corresponding RC Loading has obvious differences, and it is necessary to drive and compensate the RC Loading corresponding to different gate traces.

对norch区域的栅极线搭载的RC Loading进行补偿时,要计算每一行栅极线的补偿系数,由于每一行的传输距离和线路不同,因此其补偿系数也不相同。When compensating the RC Loading mounted on the gate lines in the norch region, the compensation coefficient of each row of gate lines should be calculated. Since the transmission distance and lines of each row are different, the compensation coefficients are also different.

不仅保护最小行RC Loading与最大行RC Loading的比值,该栅极行的补偿范围,还要考虑到栅极驱动电路输出往后传递一级的衰减情况,与选取GOA电路的驱动能力情况有关,还要考虑到工艺能力和产线的波动情况,以提高补偿的精确性。通过获取每行栅极线搭载的RC负载数据值;并计算每一行栅极线与最大行RC负载数据值之间的RC负载差值;参考栅极线传输过程中的衰减系数及工艺波动系数来计算每一行的RC负载补偿值;解决了现有的异形显示屏,在计算补偿值时不够精确的问题。It not only protects the ratio of the minimum row RC Loading to the maximum row RC Loading, but also the compensation range of the gate row, but also considers the attenuation of the gate drive circuit output to the next stage, which is related to the drive capability of the GOA circuit. Process capacity and line fluctuations are also taken into account to improve the accuracy of compensation. Obtain the RC load data value carried by each row of gate lines; and calculate the RC load difference between each row of gate lines and the maximum row RC load data value; refer to the attenuation coefficient and process fluctuation coefficient during the transmission process of the gate line To calculate the RC load compensation value of each line; solve the problem that the existing special-shaped display screen is not accurate enough when calculating the compensation value.

实施例2Example 2

如图2,图2是本发明中显示驱动装置RC负载补偿方法第二实施例示意图,步骤300包括:步骤310、利用最小行RC负载数据值和最大行RC Loading数据值的比值计算第一比值系数;步骤320、利用第一比值系数及补偿区域个数计算第二比值系数。FIG. 2 is a schematic diagram of the second embodiment of the RC load compensation method for the display drive device in the present invention. Step 300 includes: Step 310 , using the ratio of the minimum row RC load data value to the maximum row RC Loading data value to calculate the first ratio coefficient; Step 320, use the first ratio coefficient and the number of compensation regions to calculate the second ratio coefficient.

第一比值系数即为每行RC Loading值和最大RC Loading数据的比值,该比值介于A%~100%之间,可以将最小RC Loading数据行和最大RC Loading数据行的比值表示为A%。The first ratio coefficient is the ratio of the RC Loading value of each row to the maximum RC Loading data. The ratio is between A% and 100%. The ratio of the minimum RC Loading data row to the maximum RC Loading data row can be expressed as A% .

第二比值系数为某一行栅极线的补偿范围B%:即(100%-A%)/N=B%,其中N为补偿区域的个数。The second ratio coefficient is the compensation range B% of a certain row of gate lines: ie (100%-A%)/N=B%, where N is the number of compensation regions.

优选地,如图3,图3是本发明中显示驱动装置RC负载补偿方法第三实施例示意图,步骤320包括:步骤321、利用第一比值系数确定补偿区域个数;步骤322、计算最大行RC负载数据比值与最小行RC负载数据比值之间的比值差值;步骤323、将比值差值与补偿区域个数之间的比值作为第二比值系数。第二比值系数为某一行栅极线的补偿范围B%:即(100%-A%)/N=B%,其中N为补偿区域的个数。Preferably, as shown in FIG. 3, FIG. 3 is a schematic diagram of the third embodiment of the RC load compensation method of the display drive device in the present invention. Step 320 includes: Step 321, use the first ratio coefficient to determine the number of compensation areas; Step 322, calculate the maximum line The ratio difference between the RC load data ratio and the minimum row RC load data ratio; Step 323 , the ratio between the ratio difference and the number of compensation regions is used as the second ratio coefficient. The second ratio coefficient is the compensation range B% of a certain row of gate lines: ie (100%-A%)/N=B%, where N is the number of compensation regions.

优选地,如图4,图4是本发明中显示驱动装置RC负载补偿方法第四实施例示意图,步骤321包括:步骤3211、若第一比值系数小于第一比值阈值A%<20%,则补偿区域个数取值为第一范围(大于10);步骤3212、若第一比值系数在第一比值阈值与第二比值阈值之间[20%,70%],则补偿区域个数为第二范围[5,9];步骤3213、若第一比值系数大于第二比值阈值70%≤A%,则补偿区域个数为一常数值N(优选为4);其中,第一比值阈值小于第二比值阈值;常数值、第二范围、第一范围为连续的逐渐增大的数据范围。Preferably, as shown in FIG. 4, FIG. 4 is a schematic diagram of the fourth embodiment of the RC load compensation method for the display drive device in the present invention. Step 321 includes: Step 3211. If the first ratio coefficient is smaller than the first ratio threshold A%<20%, then The number of compensation areas is the first range (greater than 10); Step 3212, if the first ratio coefficient is between the first ratio threshold and the second ratio threshold [20%, 70%], the number of compensation areas is the first Second range [5,9]; Step 3213, if the first ratio coefficient is greater than the second ratio threshold 70%≤A%, the number of compensation regions is a constant value N (preferably 4); wherein, the first ratio threshold is less than The second ratio threshold; the constant value, the second range, and the first range are continuous and gradually increasing data ranges.

优选地,如图5,图5是本发明中显示驱动装置RC负载补偿方法第五实施例示意图,步骤3212包括:步骤32121、将第一比值阈值与第二比值阈值之间的数据范围分割成多个连续的依次增大的比值范围;步骤32122、对应多个连续的依次增大的比值范围,第二范围为依次变小的连续的整数值;步骤32123、令最大比值范围对应的第二范围中的最小的整数值大于常数值N。Preferably, as shown in FIG. 5, FIG. 5 is a schematic diagram of the fifth embodiment of the RC load compensation method for the display drive device in the present invention. Step 3212 includes: Step 32121: Divide the data range between the first ratio threshold and the second ratio threshold into a plurality of successively increasing ratio ranges; step 32122, corresponding to a plurality of successive successively increasing ratio ranges, the second range is successively smaller successive integer values; step 32123, making the second range corresponding to the maximum ratio range The smallest integer value in the range is greater than the constant value N.

优选地,如图6,图6是本发明中显示驱动装置RC负载补偿方法第六实施例示意图,补偿方法还包括:步骤500、计算每一栅极线的驱动电路负载;步骤600、根据驱动电路负载计算负载补偿的衰减系数。Preferably, as shown in FIG. 6, FIG. 6 is a schematic diagram of the sixth embodiment of the RC load compensation method of the display driving device in the present invention. The compensation method further includes: step 500, calculating the load of the driving circuit of each gate line; step 600, according to the driving The circuit load calculates the attenuation factor for load compensation.

优选地,如图7,图7是本发明中显示驱动装置RC负载补偿方法第七实施例示意图,补偿方法还包括:步骤700、将第二比值系数与前一区域常数之间的积值作为修正比值系数(M-1)B%,其中M表示第M个分块区域;步骤800、对第一比值系数、修正比值系数、栅极驱动线衰减系数及工艺波动系数求和,获取补偿系数。Preferably, as shown in FIG. 7, FIG. 7 is a schematic diagram of the seventh embodiment of the RC load compensation method for the display drive device in the present invention, and the compensation method further includes: Step 700, taking the product between the second ratio coefficient and the previous area constant as the Corrected ratio coefficient (M-1) B%, where M represents the Mth block area; Step 800, sum up the first ratio coefficient, the modified ratio coefficient, the gate drive line attenuation coefficient and the process fluctuation coefficient to obtain a compensation coefficient .

补偿方法可以实施为:The compensation method can be implemented as:

第一,计算确定出每行栅极走线搭载的RC Loading数据值;First, calculate and determine the RC Loading data value carried by each row of gate traces;

第二,选取最大RC Loading数据对应行,并计算每行RC Loading值和最大RCLoading数据的比值,该比值介于A%~100%之间,即最小RC Loading数据行和最大RCLoading数据行的比值为A%;Second, select the row corresponding to the largest RC Loading data, and calculate the ratio of the RC Loading value of each row to the largest RCLoading data. The ratio is between A% and 100%, that is, the ratio of the smallest RC Loading data row to the largest RCLoading data row. is A%;

第三,确定初步的RC Loading数据补偿范围B%,即(100%-A%)/N=B%,其中N为补偿区域的个数,其建议取值范围如下所示。Third, determine the preliminary RC Loading data compensation range B%, ie (100%-A%)/N=B%, where N is the number of compensation regions, and the recommended value range is as follows.

若A%<20%,则N建议取值10及其以上;If A% < 20%, N is recommended to be 10 and above;

若20%≤A%<30%,则N建议取值9;If 20%≤A%<30%, the recommended value of N is 9;

若30%≤A%<40%,则N建议取值8;If 30%≤A%<40%, the recommended value of N is 8;

若40%≤A%<50%,则N建议取值7;If 40%≤A%<50%, the recommended value of N is 7;

若50%≤A%<60%,则N建议取值6;If 50%≤A%<60%, the recommended value of N is 6;

若60%≤A%<70%,则N建议取值5;If 60%≤A%<70%, the recommended value of N is 5;

若70%≤A%,则N建议取值4;If 70%≤A%, N is recommended to be 4;

第四,需考虑GOA单元即栅极驱动电路的RC Loading情况,栅极驱动电路输出往后传递一级的衰减情况,与选取GOA电路的驱动能力情况有关,该系数为C%;Fourth, it is necessary to consider the RC Loading situation of the GOA unit, that is, the gate drive circuit. The output of the gate drive circuit transmits the next stage of attenuation, which is related to the selection of the drive capability of the GOA circuit, and the coefficient is C%;

第五,需考虑工艺能力和产线的波动情况,该系数为D%;Fifth, the fluctuation of process capacity and production line needs to be considered, and the coefficient is D%;

综上,得出第M个分块区域驱动扫描线的补偿系数为:A%+(M-1)B%+C%+D%。To sum up, the compensation coefficient of the driving scan line in the M th block region is obtained as: A%+(M-1)B%+C%+D%.

实施例3Example 3

如图8,图8是本发明中显示驱动装置RC负载补偿系统第一实施例示意图,一种显示驱动装置RC负载补偿系统,采用第一方面的补偿方法,包括检测单元10、计算单元20、补偿单元30;检测单元10用于检测获取每行栅极线搭载的RC负载数据值;计算单元20用于根据RC负载数据值计算每一行栅极线与最大行RC负载数据值之间的RC负载差值并计算对应行栅极线的补偿系数;补偿单元30用于根据RC负载差值与补偿系数获取对应行的RC负载补偿值对该行进行负载补偿,其中,补偿系数包括栅极线衰减系数及工艺波动系数。8 is a schematic diagram of a first embodiment of a display driving device RC load compensation system in the present invention, a display driving device RC load compensation system, using the compensation method of the first aspect, including a detection unit 10, a calculation unit 20, The compensation unit 30; the detection unit 10 is used for detecting and obtaining the RC load data value carried by each row of gate lines; the calculation unit 20 is used for calculating the RC between each row of gate lines and the maximum row RC load data value according to the RC load data value load difference value and calculate the compensation coefficient of the gate line of the corresponding row; the compensation unit 30 is configured to obtain the RC load compensation value of the corresponding row according to the RC load difference value and the compensation coefficient to perform load compensation for the row, wherein the compensation coefficient includes the gate line Attenuation coefficient and process fluctuation coefficient.

优选地,如图9,图9是本发明中显示驱动装置RC负载补偿系统第二实施例示意图;计算单元20包括比例单元21;比例单元21用于利用最小行RC负载数据值和最大行RCLoading数据值的比值获取第一比值系数并利用第一比值系数及补偿区域个数获取第二比值系数。Preferably, as shown in FIG. 9, FIG. 9 is a schematic diagram of the second embodiment of the display drive device RC load compensation system in the present invention; the calculation unit 20 includes a proportional unit 21; the proportional unit 21 is used for using the minimum line RC load data value and the maximum line RCLoading The ratio of the data values obtains a first ratio coefficient and uses the first ratio coefficient and the number of compensation regions to obtain a second ratio coefficient.

优选地,计算单元20还包括确定单元22;确定单元22用于利用第一比值系数确定补偿区域个数。Preferably, the calculation unit 20 further includes a determination unit 22; the determination unit 22 is configured to determine the number of compensation regions by using the first ratio coefficient.

实施本发明所述的显示驱动装置RC负载补偿方法及系统,通过获取每行栅极线搭载的RC负载数据值;并计算每一行栅极线与最大行RC负载数据值之间的RC负载差值;参考栅极线传输过程中的衰减系数及工艺波动系数来计算每一行的RC负载补偿值;解决了现有的异形显示屏,在计算补偿值时不够精确的问题。To implement the RC load compensation method and system for a display drive device according to the present invention, obtain the RC load data value carried by each row of gate lines; and calculate the RC load difference between each row of gate lines and the maximum row RC load data value Calculate the RC load compensation value of each line with reference to the attenuation coefficient and process fluctuation coefficient during the transmission process of the gate line; solve the problem that the existing special-shaped display screen is not accurate enough when calculating the compensation value.

以上仅为本发明的较佳实施例,并不用以限制本发明,凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. Inside.

Claims (10)

1. A method for compensating RC load of a display driving device is characterized by comprising the following steps:

step 100, acquiring RC load data values carried by each row of gate lines;

200, acquiring an RC load difference value between each row of gate lines and the RC load data value of the maximum row according to the RC load data value;

step 300, obtaining a compensation coefficient corresponding to each row of gate lines;

step 400, acquiring an RC load compensation value of a corresponding row according to the RC load difference and the compensation coefficient;

the compensation coefficient comprises a gate line attenuation coefficient and a process fluctuation coefficient.

2. The RC load compensation method for display driving device according to claim 1, wherein the step 300 comprises:

step 310, calculating a first ratio coefficient by using the ratio of the minimum row RC load data value and the maximum row RC Loading data value;

and step 320, calculating a second ratio coefficient by using the first ratio coefficient and the number of the compensation areas.

3. The RC load compensation method for display driving device according to claim 2, wherein the step 320 comprises:

step 321, determining the number of the compensation regions by using the first ratio coefficient;

step 322, calculating a ratio difference between the maximum row RC load data ratio and the minimum row RC load data ratio;

step 323, taking the ratio of the ratio difference to the number of the compensation areas as a second ratio coefficient.

4. The RC load compensation method for display driving device according to claim 3, wherein the step 321 comprises:

step 3211, if the first ratio coefficient is smaller than a first ratio threshold, the number of compensation regions takes a value of a first range;

step 3212, if the first ratio coefficient is between the first ratio threshold and the second ratio threshold, the number of the compensation regions is in a second range;

step 3213, if the first ratio coefficient is greater than the second ratio threshold, the number of the compensation regions is a constant value N;

wherein the first ratio threshold is less than the second ratio threshold;

the constant value, the second range, and the first range are consecutive, gradually increasing data ranges.

5. The RC load compensation method for display driving device according to claim 4, wherein the step 3212 comprises:

step 32121, dividing the data range between the first ratio threshold and the second ratio threshold into a plurality of continuous ratio ranges which are sequentially increased;

step 32122, corresponding to the plurality of consecutive sequentially increasing ratio ranges, where the second range is a sequentially decreasing consecutive integer value;

step 32123 is to make the smallest integer value in the second range corresponding to the largest ratio range larger than the constant value N.

6. The RC load compensation method for display driving device according to claim 5, further comprising:

step 500, calculating the driving circuit load of each gate line;

and step 600, calculating the attenuation coefficient of load compensation according to the load of the driving circuit.

7. The RC load compensation method for display driving device according to claim 6, wherein the compensation method further comprises:

step 700, taking the product of the second ratio coefficient and the previous area constant as a correction ratio coefficient;

step 800, summing the first ratio coefficient, the correction ratio coefficient, the gate drive line attenuation coefficient and the process fluctuation coefficient to obtain a compensation coefficient.

8. An RC load compensation system of a display driving apparatus using the compensation method of any one of claims 1 to 7, comprising:

a detection unit;

a calculation unit;

a compensation unit;

the detection unit is used for detecting and acquiring RC load data values carried by each row of gate lines;

the computing unit is used for computing an RC load difference value between each row of gate lines and the RC load data value of the maximum row according to the RC load data value and computing a compensation coefficient of the corresponding row of gate lines;

the compensation unit is used for acquiring the RC load compensation value of the corresponding row according to the RC load difference and the compensation coefficient to perform load compensation on the row;

the compensation coefficient comprises a gate line attenuation coefficient and a process fluctuation coefficient.

9. The RC load compensation system according to claim 8, wherein the calculating unit comprises:

a proportional unit;

the proportion unit is used for obtaining a first proportion coefficient by utilizing the ratio of the minimum row RC load data value and the maximum row RC Loading data value and obtaining a second proportion coefficient by utilizing the first proportion coefficient and the number of the compensation areas.

10. The RC load compensation system for display driving apparatus according to claim 9, wherein the calculating unit further comprises:

a determination unit;

the determining unit is used for determining the number of the compensation regions by using the first ratio coefficient.

CN202210501281.3A 2022-05-09 2022-05-09 RC load compensation method and system for display driving device Pending CN114863857A (en)

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