公开(公告)号：EP1008894A1

公开(公告)日：2000-06-14

申请号：EP98935330.5

申请日：1998-08-03

申请人： Citizen Watch Co., Ltd.

发明人： AKIYAMA, Takashi, Citizen Watch Co., Ltd. ,  IDE, Masafumi, Citizen Watch Co., Ltd. Tech. Lab.

IPC分类号： G02F1/1335 ,  G04G9/00 ,  G04G9/06

CPC分类号： G04G9/0035 ,  G02F1/133536 ,  G02F1/133603 ,  G02F1/133621 ,  G02F2001/133567 ,  G02F2001/133626

摘要： In a timepiece provided with a backlight, a liquid crystal display panel (10), capable of displaying at least either time information or calendar information, is made up of a liquid crystal layer (5) sealed in a gap formed between a first substrate (1) and a second substrate (4), both transparent, with an electrode formed on each of inner surfaces thereof, facing each other, and an absorption-type polarizing film (2) absorbing the light linearly polarized in the direction orthogonal to the transmission axis thereof is disposed on the outer side of the first substrate (1) installed on the visible side of the liquid crystal display panel (10) while a reflection-type polarizing film (3) reflecting the light linearly polarized in the direction orthogonal to the transmission axis thereof is disposed on a side of the second substrate (4), opposite from the visible side, and the backlight (8) is installed on the outer side of the reflection-type polarizing film (3), so that time information and so forth are visually recognizable with good contrast even when the backlight is not lit up.

摘要翻译： 在具有背光源的钟表中，能够至少显示时间信息或日历信息的液晶显示面板（10）由液晶层（5）构成，该液晶层（5）密封在形成于第一基板 1）和第二基片（4），它们都是透明的，其内表面上形成的电极彼此相对，吸收型偏振片（2）吸收在正交于透射方向的线偏振光 其轴设置在安装在液晶显示面板（10）的观看侧的第一基板（1）的外侧，而反射型偏振膜（3）反射在垂直于液晶显示面板 其透射轴设置在第二基板（4）的与可见侧相反的一侧，并且背光（8）安装在反射式偏振膜（3）的外侧，使得时间信息a 即使在背光不亮的情况下，也可以在视觉上识别出对比度良好的对比度。