CN116400537A - 一种新型显示屏的驱动方法 - Google Patents

一种新型显示屏的驱动方法 Download PDF

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CN116400537A
CN116400537A CN202211535181.9A CN202211535181A CN116400537A CN 116400537 A CN116400537 A CN 116400537A CN 202211535181 A CN202211535181 A CN 202211535181A CN 116400537 A CN116400537 A CN 116400537A
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display screen
refresh rate
value
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林彬
吕陈凤
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CPT Technology Group Co Ltd
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    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
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    • 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
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    • 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
    • G09G3/3618—Control of matrices with row and column drivers with automatic refresh of the display panel using sense/write circuits
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    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/36—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of a graphic pattern, e.g. using an all-points-addressable [APA] memory
    • G09G5/39—Control of the bit-mapped memory
    • G09G5/393—Arrangements for updating the contents of the bit-mapped memory
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    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
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    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
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    • G09G2370/10—Use of a protocol of communication by packets in interfaces along the display data pipeline
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Abstract

本发明提供一种新型显示屏的驱动方法，包括以下步骤：S1、将Data包CK的值与显示屏刷新率对应绑定并储存在IC，所述显示屏刷新率越高，对应的所述Data包CK的值越大；S2、控制平台发出指令，是否切换显示屏刷新率；S3、如果是切换显示屏刷新率，控制平台在收到所要切换的显示屏刷新率后，从所述IC里读取出对应的所述Data包CK的值，再输出对应的Data时序与CK时序；如果不切换显示屏刷新率，保持输出当前的Data时序与CK时序；S4、所述Data时序与CK时序分别施加在显示屏像素晶体管的源极线与栅极线。本发明的优点在于：不同的显示屏刷新率下搭配不同Data包CK的值，通过改变Data包CK的值，使不同刷新率的显示屏都消除水平串扰。

Description

一种新型显示屏的驱动方法
技术领域
本发明涉及显示技术领域，具体地涉及一种新型显示屏的驱动方法。
背景技术
随着时代的快速发展，人们对于手机的使用越来越多。游戏、追剧、聊天、视频、通讯、支付、导航等等，统统离不开手机。为了满足各种需求，手机相对应的功能越来越多。比如为了满足游戏、追剧优化画质的需求，出现了高刷新率(以下简称为高刷)，但高刷的同时功耗相对较大，在非游戏的时候，高刷意味着耗电量高。所以手机会在非游戏时候保持常规的低刷新率(以下简称低刷)状态，在游戏或追剧的时候，切换到高刷状态，称为动态刷新率。
结合图1，液晶显示面板的显示是通过控制显示屏内像素TFT来完成的，具体是通过横向分布的栅极线(Gate)控制像素TFT的开与关，以及纵向分布的源极线(Source)往像素TFT写入想要显示的资料电压，当栅极线为高电平时，像素TFT打开，资料电压进入并联的液晶电容与储存电容；当栅极线为低电平时，像素TFT关闭，资料电压就不能进入液晶电容与储存电容。资料电压用于调节液晶的透光率。
由于横向栅极线与纵向源极线交错分布从而存在电路耦合，所以当CK时序与Data时序的相位太接近时，由于电路耦合的原因，显示屏会出现线状水平串扰，如图2所示。为了消除水平串扰，Data时序一般会与CK时序错开，即Data包CK。现有的做法是在各个显示屏的刷新率下共用一个Data包CK，即T1＝T2＝T3，如图3所示。若T时间太长，即CK时序与Data时序错开的相位太大，就会导致液晶电容与储存电容的充电时间不足；若T时间太短，即CK时序与Data时序的相位太接近，则会使显示屏出现水平串扰。
CK时序的频率控制着显示屏的刷新率，当显示屏的刷新率越高时，CK时序与Data时序对应在栅极线与源极线的耦合效应越强，因此在各个显示屏的刷新率下共用一个Data包CK的条件下，存在这样的一种情况：低刷新率的显示屏显示正常，而高刷新率的显示屏出现水平串扰。
因此，如何使不同刷新率的显示屏都消除水平串扰，是本领域亟待解决的一个技术问题。
发明内容
本发明要解决的技术问题，在于提供一种新型显示屏的驱动方法，使不同刷新率的显示屏都消除水平串扰。
本发明是这样实现的：一种新型显示屏的驱动方法，包括以下步骤：
S1、将Data包CK的值与显示屏刷新率对应绑定并储存在IC，所述显示屏刷新率越高，对应的所述Data包CK的值越大；
S2、控制平台发出指令，是否切换显示屏刷新率；
S3、如果是切换显示屏刷新率，控制平台在收到所要切换的显示屏刷新率后，从所述IC里读取出对应的所述Data包CK的值，再输出对应的Data时序与CK时序；
如果不切换显示屏刷新率，保持输出当前的Data时序与CK时序；
S4、所述Data时序与CK时序分别施加在显示屏像素晶体管的源极线与栅极线。
进一步地，所述显示屏刷新率有三个，分别为低刷新率、常规刷新率与高刷新率。
进一步地，所述控制平台是手机的CPU。
进一步地，所述是否切换显示屏刷新率，以对话框的形式出现在所述手机的显示屏。
进一步地，所述手机的显示屏为触摸屏。
进一步地，所述S2具体为，手机在需求高质量画质的运行模式与需求普通画质的运行模式之间切换时，所述控制平台发出指令，是否切换显示屏刷新率。
进一步地，所述S1具体为：
将所需要不同的显示屏刷新率，按从小到大进行排列，第n个显示屏刷新率表示为Rn，n≥2；
选择显示屏刷新率R1进行检测，先将Data包CK的值设定为零，再以Δt为增量逐步增加Data包CK的值，每一次增加Data包CK的值，就检测显示屏是否有水平串扰，在显示屏没有水平串扰时，停止增加Data包CK的值，此时Data包CK的值设为T1’，将Data包CK的值T1’与显示屏刷新率R1对应绑定并储存在IC；
选择显示屏刷新率Rn进行检测，以Data包CK的值Tn-1’为初始值并逐步增加Δt，每一次增加Data包CK的值，就检测显示屏是否有水平串扰，在显示屏没有水平串扰时，停止增加Data包CK的值，此时Data包CK的值设为Tn’，将Data包CK的值Tn’与显示屏刷新率Rn对应绑定并储存在IC。
本发明的优点在于：1、不同的显示屏刷新率下搭配不同Data包CK的值，在需要切换显示屏刷新率时，通过读取IC，迅速得到对应的Data包CK的值，并输出对应的Data时序与CK时序，通过改变Data包CK的值，使不同刷新率的显示屏都消除水平串扰。2、显示屏刷新率越高，对应的Data包CK的值越大，通过对显示屏刷新率排序以及逐步增加Data包CK的值，找出最佳的Data包CK的值，在解决显示屏水平串扰的情况下，实现各个显示屏刷新率具有最大的液晶电容与储存电容的充电率，使显示屏的画质更优。
附图说明
下面参照附图结合实施例对本发明作进一步的说明。
图1是背景技术中栅极线、源极线与像素TFT的电路示意图。
图2是背景技术中显示屏水平串扰的示意图。
图3是背景技术中各个刷新率下共用一个Data包CK的时序示意图。
图4是本发明的不同刷新率下搭配不同Data包CK的时序示意图。
图5是本发明的新型显示屏的驱动方法的流程图。
附图标记：栅极线1；源极线2；像素TFT3；液晶电容4；储存电容5；寄生电容6；显示屏7；水平串扰8。
具体实施方式
本发明实施例通过提供一种新型显示屏的驱动方法，解决了背景技术中在各个刷新率下共用一个Data包CK的缺点，实现了使不同刷新率的显示屏都消除水平串扰，以及各个刷新率下都有各自的极限充电率，使画质更优的技术效果。
为了更好地理解上述技术方案，下面将结合说明书附图以及具体的实施方式对上述技术方案进行详细的说明。
参阅图1至图5，本发明的优选实施例。
一种新型显示屏的驱动方法，包括以下步骤：
S1、将Data包CK的值与显示屏刷新率对应绑定并储存在IC，所述显示屏刷新率越高，对应的所述Data包CK的值越大；
S2、控制平台发出指令，是否切换显示屏刷新率；
S3、如果是切换显示屏刷新率，控制平台在收到所要切换的显示屏刷新率后，从所述IC里读取出对应的所述Data包CK的值，再输出对应的Data时序与CK时序；
如果不切换显示屏刷新率，保持输出当前的Data时序与CK时序；
S4、所述Data时序与CK时序分别施加在显示屏像素晶体管的源极线与栅极线。
所述显示屏刷新率有三个，分别为低刷新率、常规刷新率与高刷新率。对应的Data包CK值分别为T1’、T2’、T3’。T1’＜T2’＜T3。由于横向栅极线与纵向源极线交错分布从而存在寄生电容(也叫耦合电容)，当显示屏的刷新率越高时，CK时序与Data时序对应在栅极线与源极线的耦合效应越强，所以本发明的实施例中采用当显示屏刷新率越高时，选择的Data包CK的值越大，使不同刷新率的显示屏都消除水平串扰。
为了方便理解，此处举例说明，所述低刷新率为20Hz或者30Hz或者40Hz，所述常规刷新率为60Hz，所述高刷新率为90Hz或者120Hz。具体的低刷新率、常规刷新率、高刷新率，由生产厂商根据实际情况进行设定。
所述控制平台是手机的CPU。
所述是否切换显示屏刷新率，以对话框的形式出现在所述手机的显示屏。在用户看到“是否切换显示屏刷新率”时，选择显示屏的刷新率，选择的操作反馈给控制平台。
所述手机的显示屏为触摸屏。用户直接在显示屏上进行刷新率的选择操作。
所述S2具体为，手机在需求高质量画质的运行模式与需求普通画质的运行模式之间切换时，所述控制平台发出指令，是否切换显示屏刷新率。为便于理解，此处举例说明，需求高质量画质的运行模式是游戏模式、影视剧播放模式、视频通话模式等，需要普通画质的运行模式是图片浏览模式、文字聊天模式、支付模式等。具体的运行模式的划分，由生产厂商根据实际情况进行设定。
例如，当前手机是处于图片浏览模式，显示屏是处于低刷新率的状态。在手机开启游戏后，控制平台发出指切换显示屏刷新率的指令，用户在选择高刷新率后，控制平台使显示屏进行高刷新率的状态，同时直接从IC读取对应的Data包CK，输出对应的CK时序与Data时序给栅极线与源极线，这样就能保证在各个刷新率下显示屏既没有水平串扰，又能提高液晶电容与储存电容的充电率，使画质更优。
以下是找出最佳的Data包CK的值，CK时序与Data时序的相位不会太接近，在解决显示屏水平串扰的条件下，CK时序与Data时序的相位不会错开太大，确保液晶电容与储存电容在各个显示屏刷新率都有最大充电率。所述S1具体为：将所需要不同的显示屏刷新率，按从小到大进行排列，第n个显示屏刷新率表示为Rn，n≥2；在本实施例中显示屏刷新率有三个：低刷新率、常规刷新率与高刷新率，从小到大排序为R1，R2，R3。
选择显示屏刷新率R1进行检测，先将Data包CK的值设定为零，这里CK时序与Data时序的相位没有错开，即CK时序与Data时序的相位重合；再以Δt为增量逐步增加Data包CK的值，即逐步错开CK时序与Data时序的相位；每一次增加Data包CK的值，就检测显示屏是否有水平串扰，在显示屏没有水平串扰时，停止增加Data包CK的值，此时Data包CK的值设为T1’，将Data包CK的值T1’与显示屏刷新率R1对应绑定并储存在IC；此时的Data包CK的值T1’就是刚好能解决显示屏的水平串扰，还能确保显示屏的液晶电容与储存电容具有最大的充电率。此处显示屏刷新率R1为低刷新率。
选择显示屏刷新率Rn进行检测，以Data包CK的值Tn-1’为初始值并逐步增加Δt，每一次增加Data包CK的值，就检测显示屏是否有水平串扰，在显示屏没有水平串扰时，停止增加Data包CK的值，此时Data包CK的值设为Tn’，将Data包CK的值Tn’与显示屏刷新率Rn对应绑定并储存在IC。
在确定低刷新率所对应的Data包CK的值T1’之后，选择常规刷新率即R2进行检测，以Data包CK的值T1’为初始值并逐步增加Δt，直至显示屏没有水平串扰，此时的Data包CK的值T2’就是在常规刷新率的情况下解决显示屏的水平串扰，还能确保显示屏的液晶电容与储存电容具有最大的充电率。
在确定常规刷新率所对应的Data包CK的值T2’之后，选择高刷新率即R3进行检测，以Data包CK的值T2’为初始值并逐步增加Δt，直至显示屏没有水平串扰，此时的Data包CK的值T3’就是在高刷新率的情况下解决显示屏的水平串扰，还能确保显示屏的液晶电容与储存电容具有最大的充电率。
虽然以上描述了本发明的具体实施方式，但是熟悉本技术领域的技术人员应当理解，我们所描述的具体的实施例只是说明性的，而不是用于对本发明的范围的限定，熟悉本领域的技术人员在依照本发明的精神所作的等效的修饰以及变化，都应当涵盖在本发明的权利要求所保护的范围内。

Claims (7)

1.一种新型显示屏的驱动方法，其特征在于，包括以下步骤：
S1、将Data包CK的值与显示屏刷新率对应绑定并储存在IC，所述显示屏刷新率越高，对应的所述Data包CK的值越大；
S2、控制平台发出指令，是否切换显示屏刷新率；
S3、如果是切换显示屏刷新率，控制平台在收到所要切换的显示屏刷新率后，从所述IC里读取出对应的所述Data包CK的值，再输出对应的Data时序与CK时序；
如果不切换显示屏刷新率，保持输出当前的Data时序与CK时序；
S4、所述Data时序与CK时序分别施加在显示屏像素晶体管的源极线与栅极线。
2.根据权利要求1所述的一种新型显示屏的驱动方法，其特征在于，所述显示屏刷新率有三个，分别为低刷新率、常规刷新率与高刷新率。
3.根据权利要求1所述的一种新型显示屏的驱动方法，其特征在于，所述控制平台是手机的CPU。
4.根据权利要求4所述的一种新型显示屏的驱动方法，其特征在于，所述是否切换显示屏刷新率，以对话框的形式出现在所述手机的显示屏。
5.根据权利要求5所述的一种新型显示屏的驱动方法，其特征在于，所述手机的显示屏为触摸屏。
6.根据权利要求4所述的一种新型显示屏的驱动方法，其特征在于，所述S2具体为，手机在需求高质量画质的运行模式与需求普通画质的运行模式之间切换时，所述控制平台发出指令，是否切换显示屏刷新率。
7.根据权利要求1所述的一种新型显示屏的驱动方法，其特征在于，所述S1具体为：
将所需要不同的显示屏刷新率，按从小到大进行排列，第n个显示屏刷新率表示为Rn，n≥2；
选择显示屏刷新率R1进行检测，先将Data包CK的值设定为零，再以Δt为增量逐步增加Data包CK的值，每一次增加Data包CK的值，就检测显示屏是否有水平串扰，在显示屏没有水平串扰时，停止增加Data包CK的值，此时Data包CK的值设为T1’，将Data包CK的值T1’与显示屏刷新率R1对应绑定并储存在IC；
选择显示屏刷新率Rn进行检测，以Data包CK的值Tn-1’为初始值并逐步增加Δt，每一次增加Data包CK的值，就检测显示屏是否有水平串扰，在显示屏没有水平串扰时，停止增加Data包CK的值，此时Data包CK的值设为Tn’，将Data包CK的值Tn’与显示屏刷新率Rn对应绑定并储存在IC。
CN202211535181.9A 2022-12-02 2022-12-02 一种新型显示屏的驱动方法 Pending CN116400537A (zh)

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