FR2319173A1 - Systeme d'eclairage pour dispositifs d'affichage a cristal liquide - Google Patents

Systeme d'eclairage pour dispositifs d'affichage a cristal liquide

Info

Publication number
FR2319173A1
FR2319173A1 FR7535485A FR7535485A FR2319173A1 FR 2319173 A1 FR2319173 A1 FR 2319173A1 FR 7535485 A FR7535485 A FR 7535485A FR 7535485 A FR7535485 A FR 7535485A FR 2319173 A1 FR2319173 A1 FR 2319173A1
Authority
FR
France
Prior art keywords
liq
crystal display
lighting system
diffusion plate
auxiliary lighting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7535485A
Other languages
English (en)
Other versions
FR2319173B3 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
American Microsystems Holding Corp
Original Assignee
American Microsystems Holding Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by American Microsystems Holding Corp filed Critical American Microsystems Holding Corp
Publication of FR2319173A1 publication Critical patent/FR2319173A1/fr
Application granted granted Critical
Publication of FR2319173B3 publication Critical patent/FR2319173B3/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/0023—Visual time or date indication means by light valves in general
    • G04G9/0029—Details
    • G04G9/0035—Details constructional
    • G04G9/0041—Illumination devices

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Liquid Crystal (AREA)
  • Planar Illumination Modules (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Electric Clocks (AREA)
FR7535485A 1975-07-23 1975-11-20 Systeme d'eclairage pour dispositifs d'affichage a cristal liquide Granted FR2319173A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US59842475A 1975-07-23 1975-07-23

Publications (2)

Publication Number Publication Date
FR2319173A1 true FR2319173A1 (fr) 1977-02-18
FR2319173B3 FR2319173B3 (fr) 1978-08-25

Family

ID=24395487

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7535485A Granted FR2319173A1 (fr) 1975-07-23 1975-11-20 Systeme d'eclairage pour dispositifs d'affichage a cristal liquide

Country Status (2)

Country Link
JP (1) JPS5215177A (fr)
FR (1) FR2319173A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2451607A1 (fr) * 1979-03-12 1980-10-10 Timex Corp Dispositif d'eclairage par l'arriere pour organe d'affichage electro-optique

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5749271U (fr) * 1980-09-02 1982-03-19
JPS57146173U (fr) * 1981-03-10 1982-09-14
JPS58111084A (ja) * 1981-12-23 1983-07-01 東洋紡績株式会社 表示装置
WO2008022149A2 (fr) 2006-08-14 2008-02-21 Ixys Corporation Vidéo et contenu commande par retroéclairage

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2451607A1 (fr) * 1979-03-12 1980-10-10 Timex Corp Dispositif d'eclairage par l'arriere pour organe d'affichage electro-optique

Also Published As

Publication number Publication date
JPS5215177A (en) 1977-02-04
FR2319173B3 (fr) 1978-08-25

Similar Documents

Publication Publication Date Title
US3950078A (en) Liquid crystal display
GB1442249A (en) Liquid crystal display device
CH642227B (fr) Montre a dispositif d'affichage analogique dont le cadran est forme par une cellule d'affichage a cristal liquide.
FR2437633A1 (fr) Polariseur transmettant et reflechissant la lumiere
JP2008225504A (ja) 表示装置及び時計
CH608330B (fr) Piece d'horlogerie electronique, notamment montre-bracelet electronique.
FR2265144A1 (en) Data display using fluid crystals - is used in electronic watches and is illuminated via curved mirror and flat cover glass
EP1158346A3 (fr) Elément d'affichage à cristaux liquides fonctionnant en partie par transmission
GB1130572A (en) Illuminated display apparatus
GB1346348A (en) Watch or clock cover glass including a liquid crystal display device
FR2319173A1 (fr) Systeme d'eclairage pour dispositifs d'affichage a cristal liquide
GB1476794A (en) Display device
EP0811859A3 (fr) Réflecteur holographique et dispositif d'affichage à cristal liquide du type réflectif l'utilisant
CH613091B (de) Fluessigkristall-anzeigeeinrichtung an kleinuhren.
GB1407299A (en) Display device
US4335453A (en) Electronic watch
JPS58149524A (ja) 電子機器
JPS5666839A (en) Data imprinting device for camera
JPS5362568A (en) Liquid crystal wristwatch
FR2317719A1 (fr) Tableau pour inscriptions pouvant a volonte etre rendues lumineuses
JPS591245Y2 (ja) 光誘導拡散板
JPS5356000A (en) Reflective type liquid crystal display unit
EP0775933A3 (fr) Dispositif d'affichage
JPS5542072A (en) Variable-hue timepiece with multiple colored layer
JPS599239Y2 (ja) 液晶表示装置

Legal Events

Date Code Title Description
ST Notification of lapse