GB981595A - Electro-optical apparatus - Google Patents

Electro-optical apparatus

Info

Publication number
GB981595A
GB981595A GB13447/61A GB1344761A GB981595A GB 981595 A GB981595 A GB 981595A GB 13447/61 A GB13447/61 A GB 13447/61A GB 1344761 A GB1344761 A GB 1344761A GB 981595 A GB981595 A GB 981595A
Authority
GB
United Kingdom
Prior art keywords
stage
photoconductor
optical path
triggered
display panel
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.)
Expired
Application number
GB13447/61A
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Western Electric Co Inc filed Critical Western Electric Co Inc
Publication of GB981595A publication Critical patent/GB981595A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/78—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C7/00—Arrangements for writing information into, or reading information out from, a digital store

Landscapes

  • Electroluminescent Light Sources (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Abstract

<PICT:0981595/C4-C5/1> <PICT:0981595/C4-C5/2> Switching of the row and column conductors of an electroluminescent display panel 10, Fig. 1, is effected by means of photoconductive elements 13, 15, 17 and 14, 16, 18 &c. which are illuminated in a desired sequence by means of trigger chains 40 and 401 comprised of stages each of which consists of an electroluminescent element 42 (421) with a series photoconductor 41 (411) and a shunt photoconductor 43 (431). A first optical path 58 (581) provides feedback to maintain a stage triggered, a second optical path 59 (591) to the series photoconductor 45 (451) of the succeeding stage conditions that stage for triggering, a third optical path 61 (611) to the shunt photoconductor of the preceding stage provides for resetting a triggered stage as the succeeding one is triggered, and finally a fourth optical path 70 (701) provides for control of photoconductor connected to the display panel. Switching operations are initiated by illuminating the first stage series photoconductor by a source 56. Triggering from one stage to the next takes place when switch 44 is opened to introduce supply source 48 in addition to the main supply source 52. Constructionally a display panel may be built as shown in Fig. 6. Zinc sulphide may be used for the electroluminescent elements, cadmium sulphide for the photoconductive elements, tin oxide for the transparent conductors and silver for all other conductors.
GB13447/61A 1960-04-21 1961-04-14 Electro-optical apparatus Expired GB981595A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US23820A US3078373A (en) 1960-04-21 1960-04-21 Electroluminescent matrix and access device

Publications (1)

Publication Number Publication Date
GB981595A true GB981595A (en) 1965-01-27

Family

ID=21817380

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13447/61A Expired GB981595A (en) 1960-04-21 1961-04-14 Electro-optical apparatus

Country Status (4)

Country Link
US (1) US3078373A (en)
JP (1) JPS4025574B1 (en)
BE (1) BE602879A (en)
GB (1) GB981595A (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL241603A (en) * 1959-07-24
GB1012445A (en) * 1961-08-25
US3207907A (en) * 1962-03-05 1965-09-21 Gen Precision Inc Electroluminescent-photoconductive tape reader and display system
US3213441A (en) * 1962-06-27 1965-10-19 Gen Dynamics Corp Readout display system with memory
US3265928A (en) * 1963-01-24 1966-08-09 Minolta Camera Kk Radiant energy-controlled scanning system
DK114912B (en) * 1964-07-15 1969-08-18 R Relsted Selector coupling with light impulse control for use in automatic coupling systems as well as selector and switching systems built with the mentioned selector coupling.
US3505527A (en) * 1967-04-06 1970-04-07 Bell Telephone Labor Inc Electronic drive circuit employing successively enabled multistate impedance elements
US3628088A (en) * 1969-07-18 1971-12-14 Larry J Schmersal High-voltage interface address circuit and method for gas discharge panel
US3723977A (en) * 1969-12-08 1973-03-27 Owens Illinois Inc Gas discharge panel with photoconductive material
US4731560A (en) * 1970-08-06 1988-03-15 Owens-Illinois Television Products, Inc. Multiple gaseous discharge display/memory panel having improved operating life
US4794308A (en) * 1970-08-06 1988-12-27 Owens-Illinois Television Products Inc. Multiple gaseous discharge display/memory panel having improved operating life
US3727189A (en) * 1971-08-26 1973-04-10 Cutler Hammer Inc Interface system having photo responsive matrix
US3988536A (en) * 1974-12-30 1976-10-26 Moricca Anthony C Scanning apparatus for television display or pick-up
FR2496949B1 (en) * 1980-12-23 1987-05-15 Thomson Csf ELECTRO-OPTICAL SWITCHING DEVICE
US4509045A (en) * 1982-07-01 1985-04-02 Sperry Corporation Low cost addressing system for AC plasma panels
US4553143A (en) * 1982-07-12 1985-11-12 Sperry Corporation Low cost panel display addressing structure
US4531122A (en) * 1982-07-14 1985-07-23 Redfield Lawrence J Flatscreen
DE3519252A1 (en) * 1985-05-29 1986-12-04 Fresenius AG, 6380 Bad Homburg Failsafe logic circuit

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2932746A (en) * 1957-02-25 1960-04-12 Sylvania Electric Prod Electroluminescent device

Also Published As

Publication number Publication date
BE602879A (en) 1961-08-16
US3078373A (en) 1963-02-19
JPS4025574B1 (en) 1965-11-08

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