CN102645782A - 彩色液晶薄膜制作方法、彩色液晶薄膜及显示设备 - Google Patents

彩色液晶薄膜制作方法、彩色液晶薄膜及显示设备 Download PDF

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CN102645782A
CN102645782A CN2011101268659A CN201110126865A CN102645782A CN 102645782 A CN102645782 A CN 102645782A CN 2011101268659 A CN2011101268659 A CN 2011101268659A CN 201110126865 A CN201110126865 A CN 201110126865A CN 102645782 A CN102645782 A CN 102645782A
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李明超
柳在健
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BOE Technology Group Co Ltd
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Abstract

本发明公开了一种彩色液晶薄膜制作方法、彩色液晶薄膜以及显示设备,涉及液晶显示技术,使用了高分子稳定的蓝相液晶来制造彩色液晶薄膜,并通过电场来使得液晶扭转,实现不同颜色的显示,再通过紫外光照射固定液晶。由于是通过电场来扭转液晶,而电场强度的控制相对于温度的控制要容易很多,因此可以提高彩色液晶薄膜制作的效率,也易于控制彩色液晶薄膜所呈现的颜色。并且,可以通过施加不同强度的电场,来制作颜色种类较丰富的彩色液晶薄膜。

Description

彩色液晶薄膜制作方法、彩色液晶薄膜及显示设备
技术领域
本发明涉及液晶显示领域,尤其涉及一种彩色液晶薄膜制作方法、彩色液晶薄膜及显示设备。
背景技术
目前,柔性显示的技术日趋完善,大多数柔性显示设备中的彩色液晶薄膜都是使用胆甾液晶制作,通过胆甾液晶制造彩色液晶薄膜的方法如图1所示,包括:
步骤S101、将温度控制在第一温度,使得液晶薄膜呈现红色,该第一温度为25摄氏度左右;
步骤S102、用紫外光照射需要制作为红色的区域,固定该区域的液晶,如图2所示;
步骤S103、将温度控制在第二温度,使得液晶薄膜中未固定液晶的区域呈现绿色,该第二温度为34摄氏度左右;
步骤S104、用紫外光照射需要制作为绿色的区域,固定该区域的液晶,如图3所示。
至此,即可制作成具有红绿两色的彩色液晶薄膜。
可是,本发明的发明人发现,使用这种方式制作彩色液晶薄膜,难以准确的控制温度,制作效率较低,且很难制作出标准颜色的彩色液晶薄膜,同时,能够制作的颜色种类也很少。
发明内容
本发明实施例提供一种彩色液晶薄膜制作方法、彩色液晶薄膜、及显示设备,以实现制作所需要的颜色的彩色液晶薄膜。
一种彩色液晶薄膜制作方法,包括:
调整填充蓝相液晶的液晶盒两端施加的电压至所述液晶盒显示所需颜色;
使用紫外光照射所述液晶盒中需要制作为当前颜色的部分。
一种彩色液晶薄膜,包括:
导电玻璃基板,以及均匀分布在所述导电玻璃基板上的具有可聚合性的蓝相液晶与光引发剂的混合物,并且,所述具有可聚合性的蓝相液晶与光引发剂的混合物经由紫外光照射固定于在电场的作用下达到的所需螺距。
一种显示设备,包括彩膜,所述彩膜包括本发明实施例提供的彩色液晶薄膜。
本发明实施例提供一种彩色液晶薄膜制作方法、彩色液晶薄膜、及显示设备,使用高分子稳定的蓝相液晶来制造彩色液晶薄膜,并通过电场来使得液晶扭转,实现不同颜色的显示,再通过紫外光照射固定液晶。由于是通过电场来扭转液晶,而电场强度的控制相对于温度的控制要容易很多,因此可以提高彩色液晶薄膜制作的效率,也易于控制彩色液晶薄膜所呈现的颜色。并且,可以通过施加不同强度的电场,来制作颜色种类较丰富的彩色液晶薄膜。
附图说明
图1为现有技术中制作彩色液晶薄膜的方法流程图;
图2和图3为现有技术中制作彩色液晶薄膜的原理示意图;
图4为本发明实施例提供的制作彩色液晶薄膜的方法流程图;
图5为本发明实施例中制作液晶盒的方法流程图;
图6为本发明实施例提供的制作红绿蓝三色彩色液晶薄膜的方法流程图;
图7a-图7j为本发明实施例提供的红绿蓝三色彩色液晶薄膜制作过程中的状态示意图;
图8为本发明实施例提供的彩色液晶薄膜结构示意图。
具体实施方式
本发明实施例提供一种彩色液晶薄膜制作方法、彩色液晶薄膜、及显示设备,使用高分子稳定的蓝相液晶来制造彩色液晶薄膜,并通过电场来使得液晶扭转,实现不同颜色的显示,再通过紫外光照射固定液晶。由于是通过电场来扭转液晶,而电场强度的控制相对于温度的控制要容易很多,因此可以提高彩色液晶薄膜制作的效率,也易于控制彩色液晶薄膜所呈现的颜色。并且,可以通过施加不同强度的电场,来制作颜色种类较丰富的彩色液晶薄膜。
如图4所示,本发明实施例提供的彩色液晶薄膜制作方法包括:
步骤S401、调整在填充蓝相液晶的液晶盒两端施加的电压至液晶盒显示所需颜色;
步骤S402、使用紫外光照射液晶盒中需要制作为当前颜色的部分。
由于蓝相液晶可以在电场的作用下扭曲,使得液晶盒透过的光的颜色发生变化,所以,通过调整填充蓝相液晶的液晶盒两端施加的电压,可以使得液晶盒显示出所需的颜色,再通过紫外光照射,来固定液晶的螺距,使得需要制作为当前颜色的部分在电场消失后,仍然显示当前的颜色。
当使用不同种类的蓝相液晶时,显示相同颜色所需要的电压值不相同,所以在实际操作时,可以逐渐增大电压值或逐渐减小电压值,直至液晶盒显示所需的颜色。当然,在实际操作中,也可以根据实际经验来确定对于某种蓝相液晶的常用颜色电压范围,以减少调整电压值所用的时间,进而提高彩色液晶薄膜制作的效率。
为了在显示出所需的颜色后,能够较好的将蓝相液晶的螺距固定为当前螺距,进而使得最后固定的颜色更加接近所需的颜色,在使用紫外光照射液晶盒中需要制作为当前颜色的部分之前,还可以先使用水银灯照射液晶盒中需要制作为当前颜色的部分,这样,在使用水银灯照射时,蓝相液晶的螺距即可较快的固定在当前的螺距,再通过紫外线照射,使得蓝相液晶的分子聚合,实现液晶的固定。
在使用水银灯照射时,通常照射5-15分钟即可完成初步的固定,通常,照射10分钟左右固定效果较好。
在使用紫外光或者使用水银灯照射液晶盒中需要制作为当前颜色的部分时,可以首先裸露液晶盒中需要制作为当前颜色的部分,遮盖液晶盒中除需要制作为当前颜色的部分外的其余部分,再使用紫外光或者水银灯照射整个液晶盒,从而实现固定液晶盒中需要制作为当前颜色的部分的液晶。
本发明实施例中,填充蓝相液晶的液晶盒的制作方法如图5所示,包括:
步骤S501、将具有可聚合性的蓝相液晶与光引发剂混合,加热至清亮点以上后冷却,通常需要冷却至室温后再使用;
步骤S502、将具有可聚合性的蓝相液晶与光引发剂的混合物均匀涂抹在导电玻璃基板上。
其中,具有可聚合性的蓝相液晶可以为对蓝相液晶进行可聚合处理后,生成的具有可聚合性的蓝相液晶;或者也可以是将蓝相液晶与RM(reactivemesogen,反应基元)混合后形成的具有可聚合性的蓝相液晶混合物。
光引发剂可以采用目前常用的光引发剂,例如Irgacure651等,也可以根据实际情况选择其他类型的光引发剂。
在步骤S502中,可以采用旋涂的方式使得具有可聚合性的蓝相液晶与光引发剂的混合物均匀分布在导电玻璃基板上,通常由上导电基板、下导电基板以及所填充的蓝相液晶混合物构成一个完整的液晶盒,该液晶盒的厚度不超过10μm较佳,通常控制在3μm-6μm的范围内。
下面以一个具体的例子来说明本发明实施例提供的制作彩色液晶薄膜的方法,如图6所示,包括:
步骤S601、高分子稳定蓝相液晶(right-handedness)与RM和光引发剂(Irgacure651)混合,加热至清亮点以上,冷却至室温,待用;
步骤S602、将步骤S601中得到的混合物旋涂在导电玻璃基板上,上下基板盒厚3μm-6μm;
步骤S603、在液晶盒两端施加电压,并调整液晶盒两端施加的电压至液晶盒显示红色,如图7a所示;
步骤S604、在液晶盒上覆盖掩膜(Mask),裸露要制作为红色的区域,水银灯通过Mask照射液晶盒10min以固定螺距,如图7b所示;
步骤S605、使用紫外(UV)光照射促使RM聚合完成红色区域中液晶的固定,如图7c所示;
步骤S606、撤去电压,待其它区域(除红色区域)恢复无色,如图7d所示;
步骤S607、施加电压至无色区域显示为绿色,如图7e所示;
步骤S608、在液晶盒上覆盖Mask,裸露要制作为绿色的区域,水银灯通过Mask照射液晶盒10min以固定螺距;
步骤S609、使用UV光照射促使RM聚合完成绿色区域中液晶的固定,如图7f所示;
步骤S610、撤去电压,待其它区域(除红、绿色区域)恢复无色,如图7g所示;
步骤S611、施加电压至无色区域显示为蓝色,如图7h所示;
步骤S612、在液晶盒上覆盖Mask,裸露要制作为蓝色的区域,水银灯通过Mask照射液晶盒10min以固定螺距;
步骤S613、使用UV光照射促使RM聚合完成绿色区域中液晶的固定,如图7i所示;
步骤S614、撤去电压,得到具有红绿蓝三色的彩色液晶薄膜,如图7j所示。
本发明实施例还提供一种彩色液晶薄膜,该彩色液晶薄膜通过本发明实施例提供的方法制作,如图8所示,该彩色液晶薄膜包括:
导电玻璃基板801,以及均匀分布在导电玻璃基板上的具有可聚合性的蓝相液晶与光引发剂的混合物802,并且,该具有可聚合性的蓝相液晶与光引发剂的混合物已经在电场的作用下达到所需螺距后,通过紫外光照射固定。
该具有可聚合性的蓝相液晶可以具体为:进行可聚合处理后的蓝相液晶;或者蓝相液晶与RM混合后的蓝相液晶混合物。
本发明实施例还提供一种显示设备,包括本发明实施例所提供的彩色液晶薄膜,该显示设备可以具体为液晶显示器,也可以是电子纸等其它显示设备。
本发明实施例提供一种彩色液晶薄膜制作方法、彩色液晶薄膜、彩膜以及显示设备,使用高分子稳定的蓝相液晶来制造彩色液晶薄膜,并通过电场来使得液晶扭转,实现不同颜色的显示,再通过紫外光照射固定液晶。由于是通过电场来扭转液晶,而电场强度的控制相对于温度的控制要容易很多,因此可以提高彩色液晶薄膜制作的效率,也易于控制彩色液晶薄膜所呈现的颜色。并且,可以通过施加不同强度的电场,来制作颜色种类较丰富的彩色液晶薄膜。
显然,本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样,倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内,则本发明也意图包含这些改动和变型在内。

Claims (11)

1.一种彩色液晶薄膜制作方法,其特征在于,包括:
调整填充蓝相液晶的液晶盒两端施加的电压至所述液晶盒显示所需颜色;
使用紫外光照射所述液晶盒中需要制作为当前颜色的部分。
2.如权利要求1所述的方法,其特征在于,在所述使用紫外光照射所述液晶盒中需要制作为当前颜色的部分之前,还包括:
使用水银灯照射所述液晶盒中需要制作为当前颜色的部分。
3.如权利要求1或2所述的方法,其特征在于,所述使用紫外光照射所述液晶盒中需要制作为当前颜色的部分,具体包括:
裸露所述液晶盒中需要制作为当前颜色的部分,遮盖液晶盒中需要制作为当前颜色部分的其余部分;
使用紫外光照射所述液晶盒。
4.如权利要求2所述的方法,其特征在于,所述使用水银灯照射所述液晶盒中需要制作为当前颜色的部分,具体包括:
裸露所述液晶盒中需要制作为当前颜色的部分,遮盖液晶盒中需要制作为当前颜色部分的其余部分;
使用水银灯照射所述液晶盒。
5.如权利要求2所述的方法,其特征在于,所述使用水银灯照射所述液晶盒中需要制作为当前颜色的部分,具体为:
使用水银灯照射所述液晶盒中需要制作为当前颜色的部分5-15分钟。
6.如权利要求1所述的方法,其特征在于,还包括:
制作填充蓝相液晶的液晶盒。
7.如权利要求6所述的方法,其特征在于,所述制作填充蓝相液晶的液晶盒,具体包括:
将具有可聚合性的蓝相液晶与光引发剂混合,加热至清亮点以上后冷却;
将所述具有可聚合性的蓝相液晶与光引发剂的混合物均匀涂抹在导电玻璃基板上。
8.如权利要求7所述的方法,其特征在于,所述具有可聚合性的蓝相液晶具体为:
进行可聚合处理后的蓝相液晶;或者
与反应基元RM混合后的蓝相液晶。
9.一种彩色液晶薄膜,其特征在于,包括:
导电玻璃基板,以及均匀分布在所述导电玻璃基板上的具有可聚合性的蓝相液晶与光引发剂的混合物,并且,所述具有可聚合性的蓝相液晶与光引发剂的混合物经由紫外光照射固定于在电场的作用下达到的所需螺距。
10.如权利要求9所述的彩色液晶薄膜,其特征在于,所述具有可聚合性的蓝相液晶具体为:
进行可聚合处理后的蓝相液晶;或者
与反应基元RM混合后的蓝相液晶。
11.一种显示设备,包括彩膜,其特征在于,所述彩膜包括如权利要求9-10任一所述的彩色液晶薄膜。
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