CH614599GA3 - Passive electro-optical display device and method for manufacturing it - Google Patents

Passive electro-optical display device and method for manufacturing it Download PDF

Info

Publication number
CH614599GA3
CH614599GA3 CH538276A CH538276A CH614599GA3 CH 614599G A3 CH614599G A3 CH 614599GA3 CH 538276 A CH538276 A CH 538276A CH 538276 A CH538276 A CH 538276A CH 614599G A3 CH614599G A3 CH 614599GA3
Authority
CH
Switzerland
Prior art keywords
manufacturing
display device
light guide
optical display
passive electro
Prior art date
Application number
CH538276A
Other versions
CH614599B (en
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
Publication of CH614599B publication Critical patent/CH614599B/en
Application filed filed Critical
Priority to CH538276A priority Critical patent/CH614599GA3/en
Priority to DE2719808A priority patent/DE2719808B2/en
Priority to JP5063177A priority patent/JPS52141598A/en
Publication of CH614599GA3 publication Critical patent/CH614599GA3/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
    • G02F1/133553—Reflecting elements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/0409—Arrangements for homogeneous illumination of the display surface, e.g. using a layer having a non-uniform transparency

Abstract

The device comprises a display cell (1, 2, 3) behind which is situated a lighting device itself comprising a light guide (5) in transparent material. Inorganic and opaque diffusing particles (6) are distributed in the material of the light guide in order to improve the diffusing effect of the latter. An additional diffuser (8) whose diffusing effect is greater than that of the light guide is inserted between the latter and the display cell. This additional diffuser improves reading in daylight. This device is provided principally for a timepiece. <IMAGE>
CH538276A 1976-04-29 1976-04-29 Passive electro-optical display device and method for manufacturing it CH614599GA3 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CH538276A CH614599GA3 (en) 1976-04-29 1976-04-29 Passive electro-optical display device and method for manufacturing it
DE2719808A DE2719808B2 (en) 1976-04-29 1977-04-28 Passive electro-optical display means and method for its manufacture
JP5063177A JPS52141598A (en) 1976-04-29 1977-04-30 Passive optooelectric display unit and method of producing same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH538276A CH614599GA3 (en) 1976-04-29 1976-04-29 Passive electro-optical display device and method for manufacturing it

Publications (2)

Publication Number Publication Date
CH614599B CH614599B (en)
CH614599GA3 true CH614599GA3 (en) 1979-12-14

Family

ID=4292627

Family Applications (1)

Application Number Title Priority Date Filing Date
CH538276A CH614599GA3 (en) 1976-04-29 1976-04-29 Passive electro-optical display device and method for manufacturing it

Country Status (3)

Country Link
JP (1) JPS52141598A (en)
CH (1) CH614599GA3 (en)
DE (1) DE2719808B2 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2422215A1 (en) * 1978-04-04 1979-11-02 Decaux Paris J C LIGHTING DEVICE AND URBAN FURNITURE EQUIPPED WITH THIS DEVICE
DE2915847C2 (en) * 1978-09-29 1986-01-16 Nitto Electric Industrial Co., Ltd., Ibaraki, Osaka Electro-optically activated display
CH619301A5 (en) * 1979-05-31 1980-09-15 Bbc Brown Boveri & Cie
JPS57195174U (en) * 1981-05-19 1982-12-10
JPS585060U (en) * 1981-06-30 1983-01-13 大日本印刷株式会社 image display body
DE3132968A1 (en) * 1981-08-20 1983-04-28 Siemens AG, 1000 Berlin und 8000 München LARGE DISPLAY DEVICE
DE3133025A1 (en) * 1981-08-20 1983-03-10 Siemens AG, 1000 Berlin und 8000 München "SIGNAL DISPLAY"
FR2598012B3 (en) * 1986-04-29 1988-04-15 Crouzet Sa LIQUID CRYSTAL DISPLAY
JP2507092Y2 (en) * 1989-11-13 1996-08-14 株式会社エンプラス Surface light source
JPH04109287A (en) * 1990-08-30 1992-04-10 Stanley Electric Co Ltd Illuminator
KR970008351B1 (en) * 1991-12-03 1997-05-23 샤프 가부시끼가이샤 Liquid crystal display device
JP3384867B2 (en) * 1994-03-31 2003-03-10 株式会社エンプラス Surface light source device with polarization function provided with polarization conversion means
DE19536825A1 (en) * 1995-09-20 1997-03-27 Dsd Dynamisch Statische Displa Brighter, lower-cost optical display unit for e.g. traffic warnings

Also Published As

Publication number Publication date
DE2719808A1 (en) 1977-11-10
DE2719808B2 (en) 1979-09-27
JPS52141598A (en) 1977-11-25
CH614599B (en)

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