CN112509530A - 一种液晶显示装置及其亮度补偿方法 - Google Patents
一种液晶显示装置及其亮度补偿方法 Download PDFInfo
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Abstract
本发明提供一种液晶显示装置及亮度补偿方法,该液晶显示装置包括:液晶显示面板;触控感应器,用于将用户按压的位置和力度转换电信号;触控控制板,用于扫描和分析电信号;主板,用于接收扫描后的电信号,发出驱动电压指令和补偿电压指令;逻辑板,包括代码储存器和电平控制器,所述代码储存器储存有灰阶补偿表,所述灰阶补偿表根据补偿电压指令调用补偿电压信息,电平控制器根据补偿电压信息向液晶显示面板提供补偿电压,所述补偿电压使所述按压区液晶偏转角度大于非按压区液晶偏转角度,有效缓解了液晶显示面板在按压区产生的暗纹。
Description
技术领域
本发明涉及显示领域,具体涉及一种液晶显示装置及其亮度补偿方法。
背景技术
在现有液晶显示装置中,液晶显示面板和触控感应器的厚度都比较薄,用户在触控或按压液晶显示装置时,液晶显示面板容易在按压区产生形变,液晶显示面板受到挤压后透光性与四周不同,会产生圆形暗斑或拖尾痕迹,且液晶显示面板恢复形变时间较长,影响人的视觉感受。
因此,现有液晶显示装置存在在触控状态下容易产生暗纹的问题。
发明内容
本发明实施例提供一种液晶显示装置及其亮度补偿方法,用于缓解现有液晶显示装置在触控状态下容易产生暗纹的问题。
为解决以上问题,本发明提供的技术方案如下:
本发明提供一种液晶显示装置,包括:
液晶显示面板;
触控感应器,用于将用户按压所述液晶显示面板的位置和力度转换为电信号;
触控控制板,用于扫描和分析所述电信号;
主板,用于接收扫描后的所述电信号,发出驱动电压指令和补偿电压指令;
逻辑板,所述逻辑板包括代码储存器和电平控制器,所述代码储存器储存有灰阶补偿表,所述灰阶补偿表根据所述补偿电压指令调用补偿电压信息,所述电平控制器根据所述补偿电压信息向液晶显示面板提供补偿电压,所述补偿电压使按压区液晶偏转角度大于非按压区液晶偏转角度,用于抵消按压区液晶受到的形变。
在一些实施例中,所述电平控制器还提供驱动电压,用于驱动所述液晶显示装置在非按压区发出目标亮度。
在一些实施例中,所述触控感应器包括电容式触控面板,所述电容式触控面板包括发射电极和接收电极,所述发射电极用于发射电信号,所述接收电极用于接收电信号,所述发射电极和所述接收电极组成网格状电极,用于将用户手指坐标和手指接触面积转换为所述电信号。
在一些实施例中,所述触控感应器包括红外触控屏,所述红外触控屏包括红外发射管和红外接收管,所述红外发射管和所述红外接收管对应组成网格状的红外矩阵,所述红外矩阵用于将用户手指坐标和手指接触面积转化为所述电信号。
在一些实施例中,所述触控感应器还包括压力感应层,所述压力感应层用于将感受到的压力转换为所述电信号。
在一些实施例中,获取所述灰阶补偿表的步骤包括:
获取所述液晶显示装置在所述按压区发出目标亮度的补偿电压;
建立所述目标亮度与所述补偿电压的第一关系;
建立所述补偿电压与所述电信号的第二关系;
根据所述第一关系和所述第二关系求出灰阶补偿表,所述灰阶补偿表用于根据所述电信号调用所述补偿电压。
在一些实施例中,所述获取所述液晶显示装置在所述按压区发出目标亮度的补偿电压的步骤包括:
将所述液晶显示装置分为按压区和非按压区;
获取所述液晶显示装置在所述非按压区发出所述目标亮度的第一电压;
获取所述液晶显示装置在所述按压区发出所述目标亮度的第二电压;
根据所述第一电压和所述第二电压得出所述液晶显示装置在所述按压区的所述补偿电压。
在一些实施例中,所述将所述液晶显示装置分为所述按压区和所述非按压区的步骤包括:
所述触控感应器向所述触控控制板传送包含有用户位置信息的电信号,所述触控控制板扫描所述电信号,将所述液晶显示装置分为所述按压区和所述非按压区。
本发明还提供一种液晶显示装置的亮度补偿方法,包括:
触控感应器根据用户位置和按压力度产生电信号;
触控控制板扫描所述电信号判断用户按压区和在按压区的力度信息;
主板接收所述信息发出补偿电压指令;
代码储存器根据所述补偿电压指令调用灰阶补偿表,并发出补偿电压指令;
电平控制器接收所述补偿电压指令向所述按压区提供补偿电压。
在一些实施例中,所述用户结束按压时,所述触控控制板停止发送电信号,所述主板向所述代码储存器停止发送补偿电压指令。
本发明提供一种液晶显示装置及亮度补偿方法,该液晶显示装置包括:触控感应器,用于将用户按压的位置和力度转换电信号;触控控制板,用于扫描和分析电信号;主板,用于接收扫描后的电信号,发出驱动电压指令和补偿电压指令;逻辑板,包括代码储存器和电平控制器,所述代码储存器储存有灰阶补偿表,所述灰阶补偿表根据补偿电压指令调用补偿电压信息,电平控制器根据补偿电压信息向液晶显示面板提供补偿电压,所述补偿电压使所述按压区液晶偏转角度大于非按压区液晶偏转角度,有效缓解了液晶显示面板在按压区产生的暗纹。
附图说明
下面结合附图,通过对本发明的具体实施方式详细描述,将使本发明的技术方案及其它有益效果显而易见。
图1为现有技术中液晶显示装置产生暗纹的场景示意图。
图2为本发明实施例提供的液晶显示装置工作示意图。
图3为本发明实施例提供的获取灰阶补偿表的流程示意图。
图4为本发明实施例提供的亮度补偿方法的流程示意图。
具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例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,本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
在本发明的描述中,需要理解的是,术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”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发明和简化描述,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发明的限制。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所述特征。在本发明的描述中,“多个”的含义是两个或两个以上,除非另有明确具体的限定。
在本发明的描述中,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,也可以是电连接或可以相互通讯;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或两个元件的相互作用关系。对于本领域的普通技术人员而言,可以根据具体情况理解上述术语在本发明中的具体含义。
在本发明中,除非另有明确的规定和限定,第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触,也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且,第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方,或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正下方和斜下方,或仅仅表示第一特征水平高度小于第二特征。
下文的公开提供了许多不同的实施方式或例子用来实现本发明的不同结构。为了简化本发明的公开,下文中对特定例子的部件和设置进行描述。当然,它们仅仅为示例,并且目的不在于限制本发明。此外,本发明可以在不同例子中重复参考数字和/或参考字母,这种重复是为了简化和清楚的目的,其本身不指示所讨论各种实施方式和/或设置之间的关系。此外,本发明提供了的各种特定的工艺和材料的例子,但是本领域普通技术人员可以意识到其他工艺的应用和/或其他材料的使用。
在现有液晶显示装置中,液晶显示面板和触控感应器的厚度都比较薄,用户在触控或按压液晶显示装置时,液晶显示面板容易在按压区产生形变,液晶显示面板受到挤压后透光性与四周不同,会产生圆形暗斑或拖尾痕迹,且液晶显示面板恢复形变时间较长,影响人的视觉感受。如图1所示,手指在液晶显示面板100上滑过,在对应位置上产生持续一段时间的暗纹。
为了缓解现有技术中,液晶显示面板容易在触控状态下产生暗纹,本发明提供了一种液晶显示装置,所述一种液晶显示装置,包括:液晶显示面板100;触控感应器200,用于将用户按压的位置和力度转换为电信号;触控控制板300,用于扫描和分析所述电信号;主板400,用于接收扫描后的所述电信号,发出驱动电压指令和补偿电压指令;逻辑板500,所述逻辑板500包括代码储存器520和电平控制器510,所述代码储存器520储存有灰阶补偿表,所述灰阶补偿表根据所述补偿电压指令调用补偿电压信息,所述电平控制器510根据所述补偿电压信息向液晶显示面板提供补偿电压,所述补偿电压使所述按压区液晶偏转角度大于非按压区液晶偏转角度,用于抵消按压区液晶受到的形变。
所述电平控制器510还提供驱动电压,用于驱动所述液晶显示装置在非按压区发出目标亮度。
在一些实施例中,所述触控感应器200包括电容式触控面板,所述电容式触控面板包括发射电极和接收电极,所述发射电极用于发射电信号,所述接收电极用于接收电信号,所述发射电极和所述接收电极组成网格状电极,用于将用户手指坐标和手指接触面积转换为所述电信号。
在一些实施例中,所述触控感应器200包括红外触控屏,所述红外触控屏包括红外发射管和红外接收管,所述红外发射管和所述红外接收管对应组成网格状的红外矩阵,所述红外矩阵用于将用户手指坐标和手指接触面积转化为所述电信号。
在一些实施例中,所述触控感应器还包括压力感应层,所述压力感应层用于将感受到的压力转换为所述电信号。
在一些实施例中,如图3所示,获取所述灰阶补偿表的步骤包括:
步骤S101:获取所述液晶显示装置在所述按压区发出目标亮度的补偿电压;
步骤S102:建立所述目标亮度与所述补偿电压的第一关系;
步骤S103:建立所述补偿电压与所述电信号的第二关系;
步骤S104:根据所述第一关系和所述第二关系求出灰阶补偿表,所述灰阶补偿表用于根据所述电信号调用所述补偿电压。
在步骤S101中,所述获取所述液晶显示装置在所述按压区发出目标亮度的补偿电压的步骤包括:将所述液晶显示装置分为按压区和非按压区;获取所述液晶显示装置在所述非按压区发出所述目标亮度的第一电压;获取所述液晶显示装置在所述按压区发出所述目标亮度的第二电压;根据所述第一电压和所述第二电压得出所述液晶显示装置在所述按压区的所述补偿电压。其中,所述将所述液晶显示装置分为所述按压区和所述非按压区的步骤包括,所述触控感应器向所述触控控制板传送包含有用户位置信息的电信号,所述触控控制板扫描所述电信号,将所述液晶显示装置分为所述按压区和所述非按压区。
在一些实施例中,所述第一电压和所述第二电压,为发出目标亮度的平均电压。
在步骤S102中,所述建立所述目标亮度与所述补偿电压的第一关系包括,将目标亮度转化为灰度值,将补偿电压和灰度值进行拟合,建立补偿电压的灰度值之间的第一函数关系,所述补偿电压和所述灰度值之间的第一函数关系为所述第一关系。
在步骤S103中,所述建立所述补偿电压与所述电信号的第二关系,所述电信号包含位置关系和用户按压力度关系,将位置关系转换为第一电信号,将力度关系转换为第二电信号,所述第一电信号与需要补偿的位置有关,所述第二电信号与需要补偿的电压大小有关,将所述第二电信号、所述第一电信号与所述补偿电压进行拟合得到第二函数关系,所述第二函数关系为所述第二关系。
在步骤S104:根据所述第一关系和所述第二关系求出灰阶补偿表,所述灰阶补偿表用于根据所述电信号调用补偿电压。所述第一关系可以求出所述补偿电压与所述目标亮度之间的关系,所述第二关系可以求出补偿电压和用户按压位置及用户按压手指之间的关系,代码存储器可以根据目标亮度和电信号直接调出所需要的补偿电压。
在一些实施例中,补偿电压包括正极性灰阶电压和负极性灰阶电压,获取驱动电压在公共电极上的实际电压分布;根据所述实际电压分布分别对各像素电极的正极性补偿电压和负极性补偿电压进行补偿,以使得在用户按压区,各像素电极上的补偿后的正极性补偿电压与负性补偿电压的差值大于各像素电极在公共电极上正驱动电压与负驱动电压之间的差值。这样在用户按压区内,液晶偏转角度就大于非按压区液晶偏转角度,这样增加了液晶在按压区的透光性,有效对抗了暗痕的产生。
本发明还提供一种液晶显示装置的亮度补偿方法,如图4所示,包括:
步骤S201:触控感应器根据用户位置和按压力度产生电信号;
步骤S202:触控控制板扫描所述电信号判断用户按压区和在按压区的力度信息;
步骤S203:主板接收所述信息发出补偿电压指令;
步骤S204:代码储存器根据所述补偿电压指令调用灰阶补偿表,并发出补偿电压指令;
步骤S205:电平控制器接收所述补偿电压指令向所述按压区提供补偿电压。
在步骤S201中,在一些实施例中,所述触控感应器200包括电容式触控面板,所述电容式触控面板包括发射电极和接收电极,所述发射电极用于发射电信号,所述接收电极用于接收电信号,所述发射电极和所述接收电极组成网格状电极,用于将用户手指坐标和手指接触面积转换为所述电信号。
在一些实施例中,所述触控感应器200包括红外触控屏,所述红外触控屏包括红外发射管和红外接收管,所述红外发射管和所述红外接收管对应组成网格状的红外矩阵,所述红外矩阵用于将用户手指坐标和手指接触面积转化为所述电信号。
在一些实施例中,所述触控感应器还包括压力感应层,所述压力感应层用于将感受到的压力转换为所述电信号。
在步骤S205结束后,所述用户结束按压时,所述触控控制板停止发送电信号,所述主板向所述代码储存器停止发送补偿电压指令。
本发明提供一种液晶显示装置及亮度补偿方法,该液晶显示装置包括:触控感应器,用于将用户按压的位置和力度转换电信号;触控控制板,用于扫描和分析电信号;主板,用于接收扫描后的电信号,发出驱动电压指令和补偿电压指令;逻辑板,包括代码储存器和电平控制器,所述代码储存器储存有灰阶补偿表,所述灰阶补偿表根据补偿电压指令调用补偿电压信息,电平控制器根据补偿电压信息向液晶显示面板提供补偿电压,所述补偿电压使所述按压区液晶偏转角度大于非按压区液晶偏转角度,有效缓解了液晶显示面板在按压区产生的暗纹。
以上对本发明实施例所提供的一种液晶显示装置及其亮度补偿方法进行了详细介绍,本文中应用了具体个例对本发明的原理及实施方式进行了阐述,以上实施例的说明只是用于帮助理解本发明的技术方案及其核心思想;本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本发明各实施例的技术方案的范围。
Claims (10)
1.一种液晶显示装置,其特征在于,包括:
液晶显示面板;
触控感应器,用于将用户按压所述液晶显示面板的位置和力度转换为电信号;
触控控制板,用于扫描和分析所述电信号;
主板,用于接收扫描后的所述电信号,发出驱动电压指令和补偿电压指令;
逻辑板,所述逻辑板包括代码储存器和电平控制器,所述代码储存器储存有灰阶补偿表,所述灰阶补偿表根据所述补偿电压指令调用补偿电压信息,所述电平控制器根据所述补偿电压信息向所述液晶显示面板提供补偿电压,所述补偿电压使按压区液晶偏转角度大于非按压区液晶偏转角度,用于抵消按压区液晶受到的形变。
2.如权利要求1所述的液晶显示装置,其特征在于,所述电平控制器还提供驱动电压,所述驱动电压用于驱动所述液晶显示装置在非按压区发出目标亮度。
3.如权利要求1所述的液晶显示装置,其特征在于,所述触控感应器包括电容式触控面板,所述电容式触控面板包括发射电极和接收电极,所述发射电极用于发射电信号,所述接收电极用于接收电信号,所述发射电极和所述接收电极组成网格状电极,用于将用户手指坐标和手指接触面积转换为所述电信号。
4.如权利要求1所述的液晶显示装置,其特征在于,所述触控感应器包括红外触控屏,所述红外触控屏包括红外发射管和红外接收管,所述红外发射管和所述红外接收管对应组成网格状的红外矩阵,所述红外矩阵用于将用户手指坐标和手指接触面积转化为所述电信号。
5.如权利要求1所述的液晶显示装置,其特征在于,所述触控感应器还包括压力感应层,所述压力感应层用于将感受到的压力转换为所述电信号。
6.如权利要求1所述的液晶显示装置,其特征在于,获取所述灰阶补偿表的步骤包括:
获取所述液晶显示装置在所述按压区发出目标亮度的补偿电压;
建立所述目标亮度与所述补偿电压的第一关系;
建立所述补偿电压与所述电信号的第二关系;
根据所述第一关系和所述第二关系求出灰阶补偿表,所述灰阶补偿表用于根据所述电信号调用所述补偿电压。
7.如权利要求6所述的液晶显示装置,其特征在于,所述获取所述液晶显示装置在所述按压区发出目标亮度的补偿电压的步骤包括:
将所述液晶显示装置分为按压区和非按压区;
获取所述液晶显示装置在所述非按压区发出所述目标亮度的第一电压;
获取所述液晶显示装置在所述按压区发出所述目标亮度的第二电压;
根据所述第一电压和所述第二电压得出所述液晶显示装置在所述按压区的所述补偿电压。
8.如权利要求7所述的液晶显示装置,其特征在于,所述将所述液晶显示装置分为所述按压区和所述非按压区的步骤包括:
所述触控感应器向所述触控控制板传送包含有用户位置信息的电信号,所述触控控制板扫描所述电信号,将所述液晶显示装置分为所述按压区和所述非按压区。
9.一种液晶显示装置的亮度补偿方法,其特征在于,包括:
触控感应器根据用户位置和按压力度产生电信号;
触控控制板扫描所述电信号判断用户按压区和在按压区的力度信息;
主板接收所述信息发出补偿电压指令;
代码储存器根据所述补偿电压指令调用灰阶补偿表,并发出补偿电压指令;
电平控制器接收所述补偿电压指令向所述按压区提供补偿电压。
10.如权利要求9所述的亮度补偿方法,其特征在于,所述用户结束按压时,所述触控控制板停止发送电信号,所述主板向所述代码储存器停止发送补偿电压指令。
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