EP0172343A3 - Digitale Kontraststeuerschaltung für eine Anzeigeeinheit - Google Patents

Digitale Kontraststeuerschaltung für eine Anzeigeeinheit Download PDF

Info

Publication number
EP0172343A3
EP0172343A3 EP85107332A EP85107332A EP0172343A3 EP 0172343 A3 EP0172343 A3 EP 0172343A3 EP 85107332 A EP85107332 A EP 85107332A EP 85107332 A EP85107332 A EP 85107332A EP 0172343 A3 EP0172343 A3 EP 0172343A3
Authority
EP
European Patent Office
Prior art keywords
display unit
contrast control
control circuit
contrast
digital
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.)
Withdrawn
Application number
EP85107332A
Other languages
English (en)
French (fr)
Other versions
EP0172343A2 (de
Inventor
Hideji Katayama
Keisuke Katoh
Junya Kita
Motowo Shimada
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.)
EMC Corp
Original Assignee
Data General 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 Data General Corp filed Critical Data General Corp
Publication of EP0172343A2 publication Critical patent/EP0172343A2/de
Publication of EP0172343A3 publication Critical patent/EP0172343A3/de
Withdrawn legal-status Critical Current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
    • 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

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)
  • Controls And Circuits For Display Device (AREA)
  • Television Receiver Circuits (AREA)
EP85107332A 1984-08-22 1985-06-13 Digitale Kontraststeuerschaltung für eine Anzeigeeinheit Withdrawn EP0172343A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP173433/84 1984-08-22
JP59173433A JPS6159477A (ja) 1984-08-22 1984-08-22 表示装置用デイジタルコントラスト調節回路

Publications (2)

Publication Number Publication Date
EP0172343A2 EP0172343A2 (de) 1986-02-26
EP0172343A3 true EP0172343A3 (de) 1988-09-07

Family

ID=15960366

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85107332A Withdrawn EP0172343A3 (de) 1984-08-22 1985-06-13 Digitale Kontraststeuerschaltung für eine Anzeigeeinheit

Country Status (3)

Country Link
EP (1) EP0172343A3 (de)
JP (1) JPS6159477A (de)
AU (1) AU4363685A (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5055410A (en) * 1989-03-02 1991-10-08 Libra Laboratories, Inc. Method and apparatus for determining non-triglycerides in oils
FR2662892B1 (fr) * 1990-06-01 1995-06-16 Alcatel Business Systems Dispositif de reglage de vision pour afficheur alphanumerique de poste telephonique.

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4155044A (en) * 1976-07-06 1979-05-15 Burroughs Corporation Variable mode counter
FR2441310A1 (fr) * 1978-11-06 1980-06-06 Siemens Ag Installation de telecommande a transmission de valeurs proportionnelles
US4340889A (en) * 1980-08-06 1982-07-20 Ford Motor Company Method and apparatus for coordinate dimming of electronic displays

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4155044A (en) * 1976-07-06 1979-05-15 Burroughs Corporation Variable mode counter
FR2441310A1 (fr) * 1978-11-06 1980-06-06 Siemens Ag Installation de telecommande a transmission de valeurs proportionnelles
US4340889A (en) * 1980-08-06 1982-07-20 Ford Motor Company Method and apparatus for coordinate dimming of electronic displays

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ELECTRONICS, 13th May 1976, pages 87-92, Mg-Graw Hill, New York, US; M. LORKOVIC: "MOS technology brings fun and games to tv sets" *
IEEE JOURNAL OF SOLID-STATE CIRCUITS, vol. SC-11, no. 6, December 1976, pages 801-808, IEEE, New York, US; H.J. CASIER et al.: "A pulse position modulation transmission system for remote control of a tv set" *

Also Published As

Publication number Publication date
AU4363685A (en) 1986-03-27
JPS6159477A (ja) 1986-03-26
EP0172343A2 (de) 1986-02-26

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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17P Request for examination filed

Effective date: 19850613

AK Designated contracting states

Designated state(s): DE FR GB NL

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: DATA GENERAL CORPORATION

PUAL Search report despatched

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AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE FR GB NL

STAA Information on the status of an ep patent application or granted ep patent

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18W Application withdrawn

Withdrawal date: 19881128

RIN1 Information on inventor provided before grant (corrected)

Inventor name: KITA, JUNYA

Inventor name: SHIMADA, MOTOWO

Inventor name: KATAYAMA, HIDEJI

Inventor name: KATOH, KEISUKE