ES2046302T3 - Circuito de excitacion. - Google Patents

Circuito de excitacion.

Info

Publication number
ES2046302T3
ES2046302T3 ES198888306637T ES88306637T ES2046302T3 ES 2046302 T3 ES2046302 T3 ES 2046302T3 ES 198888306637 T ES198888306637 T ES 198888306637T ES 88306637 T ES88306637 T ES 88306637T ES 2046302 T3 ES2046302 T3 ES 2046302T3
Authority
ES
Spain
Prior art keywords
voltage
wave
waves
circuit
output
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 - Lifetime
Application number
ES198888306637T
Other languages
English (en)
Inventor
Christopher James Morris
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.)
EMI Group Ltd
Original Assignee
Thorn EMI 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
Priority claimed from GB878717172A external-priority patent/GB8717172D0/en
Priority claimed from GB878718351A external-priority patent/GB8718351D0/en
Application filed by Thorn EMI PLC filed Critical Thorn EMI PLC
Application granted granted Critical
Publication of ES2046302T3 publication Critical patent/ES2046302T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G09G3/36—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 using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3685—Details of drivers for data electrodes
    • G09G3/3692—Details of drivers for data electrodes suitable for passive matrices only
    • 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
    • G09G3/36—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 using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3622—Control of matrices with row and column drivers using a passive matrix
    • G09G3/3629—Control of matrices with row and column drivers using a passive matrix using liquid crystals having memory effects, e.g. ferroelectric 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
    • G09G3/20—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
    • G09G3/36—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 using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3674—Details of drivers for scan electrodes
    • G09G3/3681—Details of drivers for scan electrodes suitable for passive matrices only
    • 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
    • G09G2310/06—Details of flat display driving waveforms
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02—Details of power systems and of start or stop of display operation

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal (AREA)

Abstract

CIRCUITO EXCITADOR QUE CONSTA DE UN PRIMER GENERADOR DE ONDA (20,34,60) Y UN SEGUNDO GENERADOR DE ONDA (22,36,62). CADA UNO (20,34,60;22,36,62) ES CAPAZ DE GENERAR AL MENOS DOS ESTADOS DE VOLTAJE Y EL VOLTAJE INSTANTANEO DE LA PRIMERA ONDA NUNCA ES MENOR QUE EL DE LA SEGUNDA EN UNA CANTIDAD DETERMINADA. EL CIRCUITO CONSTA ADEMAS DE VARIOS ELEMENTOS (24,38) QUE PRODUCEN RESPECTIVAMENTE UNA PLURALIDAD DE ONDAS DE SALIDA CONMUTANDO DE FORMA SELECTIVA A LA PRIMERA O A LA SEGUNDA ONDAS, Y UN DISPOSITIVO DE COMPUERTA (40) PARA CONTROLAR LA CONMUTACION SELECTIVA. EL SISTEMA ES TAL QUE CADA UNO DE LOS ELEMENTOS QUE GENERAN UNA PLURALIDAD DE ONDAS DE SALIDA ES CAPAZ DE GENERAR UNA ONDA DE SALIDA CON AL MENOS CUATRO ESTADOS DE VOLTAJE. EL CIRCUITO EXCITADOR PRODUCE VARIAS SALIDAS APROPIADAS PARA EXCITAR UN DISPOSITIVO VISUALIZADOR DE MATRIZ.
ES198888306637T 1987-07-21 1988-07-20 Circuito de excitacion. Expired - Lifetime ES2046302T3 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB878717172A GB8717172D0 (en) 1987-07-21 1987-07-21 Display device
GB878718351A GB8718351D0 (en) 1987-08-03 1987-08-03 Display device

Publications (1)

Publication Number Publication Date
ES2046302T3 true ES2046302T3 (es) 1994-02-01

Family

ID=26292517

Family Applications (2)

Application Number Title Priority Date Filing Date
ES198888306637T Expired - Lifetime ES2046302T3 (es) 1987-07-21 1988-07-20 Circuito de excitacion.
ES88306636T Expired - Lifetime ES2047551T3 (es) 1987-07-21 1988-07-20 Dispositivo de pantalla.

Family Applications After (1)

Application Number Title Priority Date Filing Date
ES88306636T Expired - Lifetime ES2047551T3 (es) 1987-07-21 1988-07-20 Dispositivo de pantalla.

Country Status (6)

Country Link
US (2) US5010328A (es)
EP (2) EP0300755B1 (es)
JP (2) JP2558331B2 (es)
CA (2) CA1311318C (es)
DE (2) DE3886290T2 (es)
ES (2) ES2046302T3 (es)

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Also Published As

Publication number Publication date
US5010328A (en) 1991-04-23
EP0300755B1 (en) 1993-10-20
JPS6448042A (en) 1989-02-22
CA1311319C (en) 1992-12-08
EP0300755A2 (en) 1989-01-25
DE3885026D1 (de) 1993-11-25
DE3886290T2 (de) 1994-06-09
JP2609690B2 (ja) 1997-05-14
EP0300754B1 (en) 1993-12-15
DE3885026T2 (de) 1994-04-28
JPS6454421A (en) 1989-03-01
ES2047551T3 (es) 1994-03-01
JP2558331B2 (ja) 1996-11-27
EP0300754A3 (en) 1990-06-13
EP0300755A3 (en) 1990-06-13
EP0300754A2 (en) 1989-01-25
DE3886290D1 (de) 1994-01-27
CA1311318C (en) 1992-12-08
US5111319A (en) 1992-05-05

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