公开(公告)号：DE69811201D1

公开(公告)日：2003-03-13

申请号：DE69811201

申请日：1998-07-21

Applicant: CITIZEN WATCH CO LTD

Inventor： SEKIGUCHI KANETAKA ,  AKIYAMA TAKASHI ,  IDE MASAFUMI ,  KIKUCHI MASAMI ,  AKIBA YUICHI ,  NAKAGAWA KOJI ,  HOSHINO KOICHI ,  TOIDA TAKASHI

IPC: G02F1/1335 ,  G02F1/1347 ,  G04G9/00

Abstract: A liquid crystal display device is structured in such a manner that plural of liquid crystal display panels each comprised of a liquid crystal layer provided between a pair of transparent substrates which have electrodes disposed on each facing inner surface, and a reflection-type polarizing film is disposed at least on the top surface of the plural liquid crystal display panel, or between the liquid crystal display panels, or on the lowest surface of the plural liquid crystal display panel. By controlling a reflection state and a transmission state through the reflection-type polarizing film with electric voltage applied on the liquid crystal layer of the liquid crystal display panel, a display which represents the opening and closing of a metallic shutter is made possible.

公开(公告)号：DE69900580T2

公开(公告)日：2002-07-18

申请号：DE69900580

申请日：1999-03-03

Applicant: CITIZEN WATCH CO LTD

Inventor： KANEKO YASUSHI ,  IDE MASAFUMI ,  AKIYAMA TAKASHI

IPC: G02F1/1335 ,  G02F1/13357 ,  G04G9/00 ,  G02F1/1333

Abstract: A single color liquid crystal display device is made up of a TN liquid crystal cell 7 with about 90 DEG twisted nematic liquid crystals sealed in-between a pair of transparent substrates 1, 2 having respective transparent electrodes 3, 4, a first polarizing film 17 disposed on the visible side of the TN liquid crystal cell 7, and a second polarizing film 18, a retardation film 6 for circularly polarized light, a cholestric liquid crystal polymer sheet 10, a translucent light absorbing member 15 and a backlight 16 disposed successively on a side of the TN liquid crystal cell 7, opposite from the visible side thereof. With such a constitution, display is rendered visible even at night by lighting up the backlight 16, and colored display in a metallic tone can be indicated.

公开(公告)号：HK1022191A1

公开(公告)日：2000-07-28

申请号：HK00101127

申请日：2000-02-25

Applicant: CITIZEN WATCH CO LTD

Inventor： IDE MASAFUMI ,  AKIYAMA TAKASHI ,  SEKIGUCHI KANETAKA ,  KIKUCHI MASAMI ,  AKIBA YUICHI ,  NAKAGAWA KOJI ,  TOIDA TAKASHI

IPC: G02F1/1335 ,  G02F

Abstract: The liquid crystal display device comprises a liquid crystal cell with liquid crystals sealed thereinbetween, sandwiched between two transparent substrates having an electrode on each of the inner surfaces thereof facing each other, a first reflective polarizing film disposed on the visible side of the liquid crystal cell, a second reflective polarizing film disposed on the side of the liquid crystal cell, opposite from the visible side, and a light absorption film disposed on the side of the second reflective polarizing film, opposite from the visible side. The first reflective polarizing film as well as the second reflective polarizing film is a polarizing sheet reflecting a light linearly polarized in the direction orthogonal to the transmission axis thereof. A light absorption film and/or a backlight may preferably be disposed under the second reflective polarizing film. Further, an absorption-type polarizing film or a light diffusion layer may preferably be disposed on the visible side of the first reflective polarizing film.

公开(公告)号：BR9806032A

公开(公告)日：1999-10-13

申请号：BR9806032

申请日：1998-07-21

Applicant: CITIZEN WATCH CO LTD

Inventor： SEKIGUCHI KANETAKA ,  AKIYAMA TAKASHI ,  IDE MASAFUMI ,  KIKUCHI MASAMI ,  AKIBA YUICHI ,  NAKAGAWA KOJI ,  HOSHINO KOICHI ,  TOIDA TAKASHI

IPC: G02F1/1335 ,  G02F1/1347 ,  G04G9/00

Abstract: A liquid crystal display device is structured in such a manner that plural of liquid crystal display panels each comprised of a liquid crystal layer provided between a pair of transparent substrates which have electrodes disposed on each facing inner surface, and a reflection-type polarizing film is disposed at least on the top surface of the plural liquid crystal display panel, or between the liquid crystal display panels, or on the lowest surface of the plural liquid crystal display panel. By controlling a reflection state and a transmission state through the reflection-type polarizing film with electric voltage applied on the liquid crystal layer of the liquid crystal display panel, a display which represents the opening and closing of a metallic shutter is made possible.

公开(公告)号：DE69822774T2

公开(公告)日：2005-03-10

申请号：DE69822774

申请日：1998-07-21

Applicant: CITIZEN WATCH CO LTD

Inventor： SEKIGUCHI KANETAKA ,  IDE MASAFUMI ,  AKIYAMA TAKASHI ,  KIKUCHI MASAMI ,  AKIBA YUICHI ,  NAKAGAWA KOJI ,  HOSHINO KOICHI ,  TOIDA TAKASHI

IPC: G02F1/1335 ,  G02F1/1347 ,  G04G9/00 ,  G04G9/06 ,  G04C3/00 ,  G04B45/00

Abstract: A wrist watch having a time display portion, comprising a reflection type polarizing plate (14) arranged at an upper or lower part of the time display portion or at a part constituting the time display portion, and a light modulating function portion that changes the ratio between an easy-to-transmit axis and an easy-to-reflect axis. To improve its decorative feature and multi-functionality, the watch also has a shutter function that covers a part or whole of the watch by changing a reflection intensity and a transmission intensity with respect to the direction of incident light by using the polarizing plate (14) and the light modulating function portion.

公开(公告)号：AU8462898A

公开(公告)日：1999-02-22

申请号：AU8462898

申请日：1998-08-03

Applicant: CITIZEN WATCH CO LTD

Inventor： AKIYAMA TAKASHI ,  IDE MASAFUMI

IPC: G02F1/1335 ,  G02F1/13357 ,  G04G9/00 ,  G04G9/06

Abstract: 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.

公开(公告)号：AU8244598A

公开(公告)日：1999-02-10

申请号：AU8244598

申请日：1998-07-21

Applicant: CITIZEN WATCH CO LTD

Inventor： SEKIGUCHI KANETAKA ,  AKIYAMA TAKASHI ,  IDE MASAFUMI ,  KIKUCHI MASAMI ,  AKIBA YUICHI ,  NAKAGAWA KOJI ,  HOSHINO KOICHI ,  TOIDA TAKASHI

IPC: G02F1/1335 ,  G02F1/1347 ,  G04G9/00

Abstract: A liquid crystal display device is structured in such a manner that plural of liquid crystal display panels each comprised of a liquid crystal layer provided between a pair of transparent substrates which have electrodes disposed on each facing inner surface, and a reflection-type polarizing film is disposed at least on the top surface of the plural liquid crystal display panel, or between the liquid crystal display panels, or on the lowest surface of the plural liquid crystal display panel. By controlling a reflection state and a transmission state through the reflection-type polarizing film with electric voltage applied on the liquid crystal layer of the liquid crystal display panel, a display which represents the opening and closing of a metallic shutter is made possible.

公开(公告)号：AU8128698A

公开(公告)日：1999-02-08

申请号：AU8128698

申请日：1998-07-10

Applicant: CITIZEN WATCH CO LTD

Inventor： AKIYAMA TAKASHI ,  IDE MASAFUMI ,  SEKIGUCHI KANETAKA ,  KIKUCHI MASAMI ,  AKIBA YUICHI ,  NAKAGAWA KOJI ,  HOSHINO KOICHI ,  TOIDA TAKASHI

IPC: G02B5/02 ,  G02B5/22 ,  G02B5/30 ,  G02F1/1335

Abstract: The liquid crystal display device comprises a liquid crystal cell with liquid crystals sealed thereinbetween, sandwiched between two transparent substrates having an electrode on each of the inner surfaces thereof facing each other, an absorption-type polarizing film disposed on the visible side of the liquid crystal cell, a reflection-type polarizing film disposed on the side of the liquid crystal cell, opposite from the visible side. The absorption-type polarizing film is a polarizing sheet absorbing a light linearly polarized in the direction orthogonal to the transmission axis thereof while the reflection-type polarizing film is a polarizing sheet reflecting a light linearly polarized in the direction orthogonal to the transmission axis thereof. A light reflection film or a color filter may preferably be disposed under the reflection-type polarizing film. Further, a light diffusing layer or a light diffusing film may preferably be disposed on the visible side of the absorption-type polarizing film.

公开(公告)号：DE69900580D1

公开(公告)日：2002-01-24

申请号：DE69900580

申请日：1999-03-03

Applicant: CITIZEN WATCH CO LTD

Inventor： KANEKO YASUSHI ,  IDE MASAFUMI ,  AKIYAMA TAKASHI

IPC: G02F1/1335 ,  G02F1/13357 ,  G04G9/00 ,  G02F1/1333

Abstract: A single color liquid crystal display device is made up of a TN liquid crystal cell 7 with about 90 DEG twisted nematic liquid crystals sealed in-between a pair of transparent substrates 1, 2 having respective transparent electrodes 3, 4, a first polarizing film 17 disposed on the visible side of the TN liquid crystal cell 7, and a second polarizing film 18, a retardation film 6 for circularly polarized light, a cholestric liquid crystal polymer sheet 10, a translucent light absorbing member 15 and a backlight 16 disposed successively on a side of the TN liquid crystal cell 7, opposite from the visible side thereof. With such a constitution, display is rendered visible even at night by lighting up the backlight 16, and colored display in a metallic tone can be indicated.

公开(公告)号：HK1022953A1

公开(公告)日：2000-08-25

申请号：HK00101817

申请日：2000-03-23

Applicant: CITIZEN WATCH CO LTD

Inventor： IDE MASAFUMI ,  AKIYAMA TAKASHI ,  KANAKO YASUSHI ,  TOHYAMA NAOYOSHI

IPC: G02F1/1335 ,  G02F1/1347 ,  G02F ,  G04G

Abstract: The invention provides a liquid crystal display device having variety in design, comprising a first liquid crystal cell (16) and a second liquid crystal cell (18), made up of a liquid crystal layer sealed in a gap between a pair of transparent substrates having an electrode formed on each of the inner surfaces thereof, facing each other and disposed in that order from the visible side; an absorption-type polarizing film (12) disposed on the visible side of the first liquid crystal cell (16), for absorbing the light linearly polarized in the direction orthogonal to the transmission axis thereof; and a reflection-type polarizing film (14) disposed on a side of the second liquid crystal cell (18), opposite from the visible side thereof, for reflecting the light linearly polarized in the direction orthogonal to the transmission axis thereof.