CH609194GA3 - Electro-optical passive display device - Google Patents

Electro-optical passive display device

Info

Publication number
CH609194GA3
CH609194GA3 CH633776A CH633776A CH609194GA3 CH 609194G A3 CH609194G A3 CH 609194GA3 CH 633776 A CH633776 A CH 633776A CH 633776 A CH633776 A CH 633776A CH 609194G A3 CH609194G A3 CH 609194GA3
Authority
CH
Switzerland
Prior art keywords
mirror
electro
display device
posterior
optical passive
Prior art date
Application number
CH633776A
Other languages
French (fr)
Other versions
CH609194B5 (en
Inventor
Yves Ruedin
Original Assignee
Ebauches Sa
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 Ebauches Sa filed Critical Ebauches Sa
Priority to CH633776A priority Critical patent/CH609194B5/en
Priority to JP5863377A priority patent/JPS52142996A/en
Priority to DE19772723483 priority patent/DE2723483C3/en
Publication of CH609194GA3 publication Critical patent/CH609194GA3/en
Publication of CH609194B5 publication Critical patent/CH609194B5/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Liquid Crystal (AREA)

Abstract

The electro-optical passive display device comprises a display cell (1) behind which is situated a lighting device including a light guide (5). A continuous mirror (6) is situated behind this light guide and a two-sided discontinuous mirror (8) in front. This configuration results in the ambient light being reflected in its entirety, either by the anterior face of the discontinuous mirror, or by the posterior continuous mirror. The light rays emanating from the light source (4) are all reflected outwards, either directly by the posterior continuous mirror, or after reflection by the posterior face of the discontinuous mirror. This device can be used in particular in horology. <IMAGE>
CH633776A 1976-05-20 1976-05-20 Electro-optical passive display device CH609194B5 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CH633776A CH609194B5 (en) 1976-05-20 1976-05-20 Electro-optical passive display device
JP5863377A JPS52142996A (en) 1976-05-20 1977-05-20 Passive optooelectric indicator
DE19772723483 DE2723483C3 (en) 1976-05-20 1977-05-20 Passive electro-optical display arrangement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH633776A CH609194B5 (en) 1976-05-20 1976-05-20 Electro-optical passive display device

Publications (2)

Publication Number Publication Date
CH609194GA3 true CH609194GA3 (en) 1979-02-28
CH609194B5 CH609194B5 (en) 1979-08-31

Family

ID=4307960

Family Applications (1)

Application Number Title Priority Date Filing Date
CH633776A CH609194B5 (en) 1976-05-20 1976-05-20 Electro-optical passive display device

Country Status (3)

Country Link
JP (1) JPS52142996A (en)
CH (1) CH609194B5 (en)
DE (1) DE2723483C3 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2915847C2 (en) * 1978-09-29 1986-01-16 Nitto Electric Industrial Co., Ltd., Ibaraki, Osaka Electro-optically activated display
EP0023741A1 (en) * 1979-08-02 1981-02-11 Koninklijke Philips Electronics N.V. Electrophoretic image display device
JPS6318038Y2 (en) * 1981-01-26 1988-05-20
DE3145127C3 (en) * 1981-03-13 1996-08-01 Bosch Gmbh Robert Method for producing a film for a device for the gradient-free illumination of passive display devices
JPS58209777A (en) * 1982-05-31 1983-12-06 日本精機株式会社 liquid crystal display device
JPS6044076U (en) * 1983-08-31 1985-03-28 シャープ株式会社 Light box for display device
JPH04107237U (en) * 1991-02-26 1992-09-16 株式会社ウノン技研 Surface light source component
GB2267378B (en) * 1992-05-22 1996-07-10 Nokia Mobile Phones Uk Illuminated LCD apparatus
DE19746764B4 (en) * 1997-10-23 2006-09-14 Siemens Ag display unit

Also Published As

Publication number Publication date
JPS52142996A (en) 1977-11-29
DE2723483B2 (en) 1979-03-01
CH609194B5 (en) 1979-08-31
DE2723483A1 (en) 1977-11-24
DE2723483C3 (en) 1979-10-18

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Legal Events

Date Code Title Description
PL Patent ceased