FR2391522A1 - Multicoloured liq. crystal display - has several colour light sources to illuminate element for alphanumeric display - Google Patents

Multicoloured liq. crystal display - has several colour light sources to illuminate element for alphanumeric display

Info

Publication number
FR2391522A1
FR2391522A1 FR7812328A FR7812328A FR2391522A1 FR 2391522 A1 FR2391522 A1 FR 2391522A1 FR 7812328 A FR7812328 A FR 7812328A FR 7812328 A FR7812328 A FR 7812328A FR 2391522 A1 FR2391522 A1 FR 2391522A1
Authority
FR
France
Prior art keywords
crystal display
light sources
multicoloured
liq
display
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.)
Pending
Application number
FR7812328A
Other languages
French (fr)
Inventor
Robert M Goldberg
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.)
Bendix Corp
Original Assignee
Bendix 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
Application filed by Bendix Corp filed Critical Bendix Corp
Publication of FR2391522A1 publication Critical patent/FR2391522A1/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/3406—Control of illumination source
    • G09G3/3413—Details of control of colour illumination sources
    • 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
    • G02F1/133621—Illuminating devices providing coloured light
    • 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
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/04—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions
    • G09G3/16—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions by control of light from an independent source
    • G09G3/18—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions by control of light from an independent source using liquid crystals
    • 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
    • G02F1/133621—Illuminating devices providing coloured light
    • G02F1/133622—Colour sequential illumination
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0235—Field-sequential colour display

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Computer Hardware Design (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

A liquid crystal display of alpha-numeric data is adapted to allow several colours to be programmably selected. The liquid crystal display element (4) consists of either seven segments (18) for a straight numerical display or fourteen if alphabetic characters are included. A front mask (2) has a number of apertures (16) corresponding in format to the display segments. A number of separate light sources (10, 12, 14) are selectively activated to illuminate the liquid crystal display element, via a diffuser plate (16).
FR7812328A 1977-05-16 1978-04-26 Multicoloured liq. crystal display - has several colour light sources to illuminate element for alphanumeric display Pending FR2391522A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US79694577A 1977-05-16 1977-05-16

Publications (1)

Publication Number Publication Date
FR2391522A1 true FR2391522A1 (en) 1978-12-15

Family

ID=25169463

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7812328A Pending FR2391522A1 (en) 1977-05-16 1978-04-26 Multicoloured liq. crystal display - has several colour light sources to illuminate element for alphanumeric display

Country Status (3)

Country Link
JP (1) JPS53142128A (en)
DE (1) DE2820896A1 (en)
FR (1) FR2391522A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5627198A (en) * 1979-08-10 1981-03-16 Canon Kk Color display device
JPS57130887U (en) * 1981-02-10 1982-08-14
JPS5862376U (en) * 1981-10-20 1983-04-26 パイオニア株式会社 liquid crystal display device
DE4010998A1 (en) * 1990-04-05 1991-10-17 Diehl Gmbh & Co Electronic control for household appliance - uses digital display to set time, temp. etc. for oven, washer, dryer, etc.
JPH0425124U (en) * 1990-06-26 1992-02-28
DE19516488A1 (en) * 1995-05-05 1996-11-07 Valeo Borg Instr Verw Gmbh Multi-color lighting device
DE10218577A1 (en) * 2002-04-26 2003-11-13 Therma Ag Schwanden Household appliance display, e.g. for temperature, comprises a color LCD, the color of which varies according to a defined temperature scale

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3841083A (en) * 1971-03-01 1974-10-15 Time Computer Self-illuminated liquid crystal timepiece
US3909823A (en) * 1974-03-26 1975-09-30 Keith L Knowlton An optical fiber variable display system utilizing a single light source
US3924227A (en) * 1972-11-13 1975-12-02 Michael Stolov Digital display device
GB1433327A (en) * 1972-03-17 1976-04-28 Axbey P J Display devices
FR2317720A1 (en) * 1975-06-27 1977-02-04 Bbc Brown Boveri & Cie ELECTRONIC OPTICAL DISPLAY DEVICE
FR2328213A1 (en) * 1973-03-06 1977-05-13 Equip Const Electr Light modulation technique for display device - uses modulator, two polarizers and optical waveguides forming light paths to create display of controlled intensity

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3841083A (en) * 1971-03-01 1974-10-15 Time Computer Self-illuminated liquid crystal timepiece
GB1433327A (en) * 1972-03-17 1976-04-28 Axbey P J Display devices
US3924227A (en) * 1972-11-13 1975-12-02 Michael Stolov Digital display device
FR2328213A1 (en) * 1973-03-06 1977-05-13 Equip Const Electr Light modulation technique for display device - uses modulator, two polarizers and optical waveguides forming light paths to create display of controlled intensity
US3909823A (en) * 1974-03-26 1975-09-30 Keith L Knowlton An optical fiber variable display system utilizing a single light source
FR2317720A1 (en) * 1975-06-27 1977-02-04 Bbc Brown Boveri & Cie ELECTRONIC OPTICAL DISPLAY DEVICE

Also Published As

Publication number Publication date
JPS53142128A (en) 1978-12-11
DE2820896A1 (en) 1978-11-23

Similar Documents

Publication Publication Date Title
ATE35872T1 (en) DEVICE FOR PRESENTATION OF INFORMATION.
ES8506917A1 (en) Variable color electrooptic display.
FR2301044B3 (en)
GB1472305A (en) Calculator having thermal printing head
FR2391522A1 (en) Multicoloured liq. crystal display - has several colour light sources to illuminate element for alphanumeric display
JPS53145654A (en) Liquid crystal display device of projection type
JPS5713451A (en) Image processing apparatus
JPS5426626A (en) Display system
GB8327856D0 (en) Device for alphanumeric arabic display
JPS54147070A (en) Electronic watch with matrix display means
JPS56119880A (en) Hybrid display multifunctional watch
JPS5441695A (en) Destination guide unit
JPS5424657A (en) Liquid crystal display device
JPS57137879A (en) Wrist watch
JPS531062A (en) Level display unit
JPS54133378A (en) Day display system of digital watch
JPS56126330A (en) Frequency display device
FR2309941A1 (en) Multisign display for aircraft control panel - is made of liquid crystal elements each of which can be common to several signs
JPS53141547A (en) Driving system of self-shift-type gas discharge panel
JPS5365095A (en) Liquid crystal display device of watches, et cetra
JPS5480158A (en) Electronic watch
GB1027603A (en) Improvements in or relating to monogrammic indicating devices
JPS5296887A (en) Display unit
JPS55117987A (en) Clock with illumination
JPS55146087A (en) Portable watch of multiplex multi-information display