GB2017138A - Light-Absorption Film for Rear Electrodes of Electroluminescent Display Panel - Google Patents

Light-Absorption Film for Rear Electrodes of Electroluminescent Display Panel

Info

Publication number
GB2017138A
GB2017138A GB7903791A GB7903791A GB2017138A GB 2017138 A GB2017138 A GB 2017138A GB 7903791 A GB7903791 A GB 7903791A GB 7903791 A GB7903791 A GB 7903791A GB 2017138 A GB2017138 A GB 2017138A
Authority
GB
United Kingdom
Prior art keywords
light
display panel
electroluminescent display
absorption film
rear electrodes
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
GB7903791A
Other versions
GB2017138B (en
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.)
Sharp Corp
Original Assignee
Sharp 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
Priority claimed from JP53011592A external-priority patent/JPS5835360B2/en
Priority claimed from JP53014402A external-priority patent/JPS5820468B2/en
Priority claimed from DE19782812254 external-priority patent/DE2812254A1/en
Priority claimed from JP53067095A external-priority patent/JPS5827506B2/en
Application filed by Sharp Corp filed Critical Sharp Corp
Publication of GB2017138A publication Critical patent/GB2017138A/en
Application granted granted Critical
Publication of GB2017138B publication Critical patent/GB2017138B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B33/00—Electroluminescent light sources
    • H05B33/12—Light sources with substantially two-dimensional radiating surfaces
    • H05B33/22—Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of auxiliary dielectric or reflective layers

Landscapes

  • Electroluminescent Light Sources (AREA)

Abstract

At least one light-absorption layer 11, 12 is disposed between a thin electroluminescent film 4 and a counter electrode 13 for absorbing light applied through a transparent electrode 2. The light-absorption layer enhances the contrast of the electroluminescent film. A plurality of light-absorption layers may be used e.g. of Al2O3,Al2O3-x, Mo, Zr, Ti, Y, Ta, Ni or Al with a thickness of 10-300 ANGSTROM . Dielectric layers 3, 5a, 5b are optional. A glass cover 8 and protective liquid 9 may be provided. <IMAGE>
GB7903791A 1978-02-03 1979-02-02 Light absortion film for rear elecrodes of electroluminescent display panel Expired GB2017138B (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP53011592A JPS5835360B2 (en) 1978-02-03 1978-02-03 Thin film EL panel
JP53014402A JPS5820468B2 (en) 1978-02-09 1978-02-09 Blackened electrode structure
DE19782812254 DE2812254A1 (en) 1978-03-21 1978-03-21 ANTHRAQUINONE DYE BLEND
JP53067095A JPS5827506B2 (en) 1978-06-02 1978-06-02 Blackened electrode structure

Publications (2)

Publication Number Publication Date
GB2017138A true GB2017138A (en) 1979-10-03
GB2017138B GB2017138B (en) 1982-08-18

Family

ID=27432295

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7903791A Expired GB2017138B (en) 1978-02-03 1979-02-02 Light absortion film for rear elecrodes of electroluminescent display panel

Country Status (1)

Country Link
GB (1) GB2017138B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2176340A (en) * 1985-06-04 1986-12-17 Phosphor Prod Co Ltd High contrast electroluminescent displays
US4672264A (en) * 1985-01-08 1987-06-09 Phosphor Products Company Limited High contrast electroluminescent display panels
EP0483783A2 (en) * 1990-10-31 1992-05-06 GOLDSTAR CO. Ltd. Fabrication method and structure of a thin film electroluminescent device
EP0671865A1 (en) * 1994-03-08 1995-09-13 Planar Systems, Inc. Black electrode TFEL display

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4672264A (en) * 1985-01-08 1987-06-09 Phosphor Products Company Limited High contrast electroluminescent display panels
GB2176340A (en) * 1985-06-04 1986-12-17 Phosphor Prod Co Ltd High contrast electroluminescent displays
GB2176340B (en) * 1985-06-04 1989-07-05 Phosphor Prod Co Ltd High contrast electroluminescent displays
EP0483783A2 (en) * 1990-10-31 1992-05-06 GOLDSTAR CO. Ltd. Fabrication method and structure of a thin film electroluminescent device
EP0483783A3 (en) * 1990-10-31 1993-03-03 Goldstar Co. Ltd. Fabrication method and structure of a thin film electroluminescent device
EP0671865A1 (en) * 1994-03-08 1995-09-13 Planar Systems, Inc. Black electrode TFEL display
US5504389A (en) * 1994-03-08 1996-04-02 Planar Systems, Inc. Black electrode TFEL display

Also Published As

Publication number Publication date
GB2017138B (en) 1982-08-18

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Effective date: 19990201