GB1527326A - Selectively illuminable displays - Google Patents

Selectively illuminable displays

Info

Publication number
GB1527326A
GB1527326A GB1133577A GB1133577A GB1527326A GB 1527326 A GB1527326 A GB 1527326A GB 1133577 A GB1133577 A GB 1133577A GB 1133577 A GB1133577 A GB 1133577A GB 1527326 A GB1527326 A GB 1527326A
Authority
GB
United Kingdom
Prior art keywords
cells
light
cell
adjacent
legend
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
GB1133577A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB1133577A priority Critical patent/GB1527326A/en
Publication of GB1527326A publication Critical patent/GB1527326A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/35—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being liquid crystals
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/305—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being the ends of optical fibres

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)

Abstract

1527326 Matrix displays; liquid crystal display devices STANDARD TELEPHONE & CABLES Ltd 17 March 1977 11335/77 Heading G5C A panel displays a legend, either formed by or disclosed by adjacent individual electro-optical cells when these are activated in front of a light source. In Fig. 1, the legends 12a, 12b in front of light sources 11a, 11b are blocked from view by opaque cells 13a, 13b while the lowermost legend is made visible by energization of the lowest cell. To display a character formed from the cells, each cell may be illuminated (Fig. 2) by a bundle of light guides 22, clustered near to a lamp source; a lens 24 adjacent to each cell further concentrates the light. Alternatively an array of cells may be placed adjacent to a luminous or reflective panel (Fig. 3, not shown). The cells may rely on liquid crystal, electrophoretic, electrochromic, or electrically frustrated total internal reflection effects. If depending on nematic liquid crystals between polarizers, colour variation may be obtained by control of energization, extending to full opacity; by insertion of a retarding film colour contrast may be obtained.
GB1133577A 1977-03-17 1977-03-17 Selectively illuminable displays Expired GB1527326A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1133577A GB1527326A (en) 1977-03-17 1977-03-17 Selectively illuminable displays

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1133577A GB1527326A (en) 1977-03-17 1977-03-17 Selectively illuminable displays

Publications (1)

Publication Number Publication Date
GB1527326A true GB1527326A (en) 1978-10-04

Family

ID=9984367

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1133577A Expired GB1527326A (en) 1977-03-17 1977-03-17 Selectively illuminable displays

Country Status (1)

Country Link
GB (1) GB1527326A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2471012A1 (en) * 1979-12-07 1981-06-12 Commissariat Energie Atomique LIGHTING DEVICE FOR LARGE SCREEN
FR2526981A2 (en) * 1982-05-13 1983-11-18 World Acrilux Illuminated alphanumeric display panel - includes liquid crystal elements controlling transmission of light from matrix of fibre=optic waveguides
WO1986007178A1 (en) * 1985-05-24 1986-12-04 Ncr Corporation Optical display device
FR2625588A1 (en) * 1987-12-30 1989-07-07 Matra Modular liquid crystal display device
FR2628875A1 (en) * 1988-03-15 1989-09-22 Vitamine Sarl Display panel using coherent matrix of tapered optical fibres - uses bundle of fibres which form matrix on screen surface and face slide illuminated light focussed by parabolic mirror
BE1001361A3 (en) * 1988-01-20 1989-10-10 Fabricable Kabelfabriek Van Hu Fibre=optic display panel with liq. crystal grid - provides selective illumination of character elements by electro-optical switching of appropriate gps. of fibre terminations
EP0415379A2 (en) * 1989-08-30 1991-03-06 Honeywell Inc. Solid state sunlight readable illuminated display device
EP0504540A1 (en) * 1991-03-22 1992-09-23 Cesare Gallone Luminous display device for electric equipments
GB2257555A (en) * 1991-07-09 1993-01-13 Eev Ltd Electro-optical display.
GB2267774A (en) * 1992-06-09 1993-12-15 Eev Ltd Display
WO1993025992A1 (en) * 1992-06-09 1993-12-23 Eev Limited Displays
EP1883338A2 (en) * 2005-04-29 2008-02-06 Titmus Optical, Inc. Vision testing apparatus

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2471012A1 (en) * 1979-12-07 1981-06-12 Commissariat Energie Atomique LIGHTING DEVICE FOR LARGE SCREEN
EP0030875B1 (en) * 1979-12-07 1984-08-15 COMMISSARIAT A L'ENERGIE ATOMIQUE Etablissement de Caractère Scientifique Technique et Industriel Illuminating device for a large screen
FR2526981A2 (en) * 1982-05-13 1983-11-18 World Acrilux Illuminated alphanumeric display panel - includes liquid crystal elements controlling transmission of light from matrix of fibre=optic waveguides
WO1986007178A1 (en) * 1985-05-24 1986-12-04 Ncr Corporation Optical display device
FR2625588A1 (en) * 1987-12-30 1989-07-07 Matra Modular liquid crystal display device
BE1001361A3 (en) * 1988-01-20 1989-10-10 Fabricable Kabelfabriek Van Hu Fibre=optic display panel with liq. crystal grid - provides selective illumination of character elements by electro-optical switching of appropriate gps. of fibre terminations
FR2628875A1 (en) * 1988-03-15 1989-09-22 Vitamine Sarl Display panel using coherent matrix of tapered optical fibres - uses bundle of fibres which form matrix on screen surface and face slide illuminated light focussed by parabolic mirror
EP0415379A3 (en) * 1989-08-30 1991-04-03 Honeywell Inc. Solid state sunlight readable illuminated display device
EP0415379A2 (en) * 1989-08-30 1991-03-06 Honeywell Inc. Solid state sunlight readable illuminated display device
EP0504540A1 (en) * 1991-03-22 1992-09-23 Cesare Gallone Luminous display device for electric equipments
US5251393A (en) * 1991-03-22 1993-10-12 Cesare Gallone Luminous display device for electric equipments
GB2257555A (en) * 1991-07-09 1993-01-13 Eev Ltd Electro-optical display.
GB2267774A (en) * 1992-06-09 1993-12-15 Eev Ltd Display
WO1993025992A1 (en) * 1992-06-09 1993-12-23 Eev Limited Displays
GB2267774B (en) * 1992-06-09 1996-03-06 Eev Ltd Display
EP1883338A2 (en) * 2005-04-29 2008-02-06 Titmus Optical, Inc. Vision testing apparatus
EP1883338A4 (en) * 2005-04-29 2013-11-20 Sperian Prot Optical Inc Vision testing apparatus

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee