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GB2006569A - A flat panel image display system - Google Patents

A flat panel image display system

Info

Publication number
GB2006569A
GB2006569A GB7839652A GB7839652A GB2006569A GB 2006569 A GB2006569 A GB 2006569A GB 7839652 A GB7839652 A GB 7839652A GB 7839652 A GB7839652 A GB 7839652A GB 2006569 A GB2006569 A GB 2006569A
Authority
GB
United Kingdom
Prior art keywords
signal
brightness level
scan
signals
optical changes
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Withdrawn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
GB7839652A
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 JP11995777A external-priority patent/JPS5453922A/en
Priority claimed from JP14499377A external-priority patent/JPS5478066A/en
Priority claimed from JP277178A external-priority patent/JPS5496347A/en
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Publication of GB2006569A publication Critical patent/GB2006569A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/12—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by switched stationary formation of lamps, photocells or light relays

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Transforming Electric Information Into Light Information (AREA)

Abstract

An image display system comprises a display panel utilizing optical changes caused by signals applied to crosspoints of row and column electrodes, a timing circuit for generating timing signals necessary to display the image, a scan circuit responsive to the output of the timing circuit to sequentially scan the display panel in the direction of row, a brightness modulation signal generator for generating K (K >/= 2) different signals distributed between a signal for minimizing the optical changes at the crosspoints and an electrical signal for maximizing the optical changes, a brightness level signal generator for receiving a video signal and producing a brightness level signal representative of the brightness level of the received video signal, a line memory for storing the brightness level signal and providing it in synchronism with a horizontal synchronizing signal, and a selection circuit for selecting that one of the K signals which corresponds to the output from the line memory and applying the selected signal to the column electrodes. For intermediate signal levels alternate adjacent ones of the K quantization levels are displayed at each scan.
GB7839652A 1977-10-07 1978-10-06 A flat panel image display system Withdrawn GB2006569A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP11995777A JPS5453922A (en) 1977-10-07 1977-10-07 Luminance modulation system of video display unit
JP14499377A JPS5478066A (en) 1977-12-05 1977-12-05 Ad converter
JP277178A JPS5496347A (en) 1978-01-17 1978-01-17 A-d converter

Publications (1)

Publication Number Publication Date
GB2006569A true GB2006569A (en) 1979-05-02

Family

ID=27275515

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7839652A Withdrawn GB2006569A (en) 1977-10-07 1978-10-06 A flat panel image display system

Country Status (4)

Country Link
DE (1) DE2843706A1 (en)
FR (1) FR2405603A1 (en)
GB (1) GB2006569A (en)
NL (1) NL7810125A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2622724A1 (en) * 1987-10-30 1989-05-05 Thomson Csf DEVICE FOR GENERATING BRIGHTNESS LEVELS ON A VISUALIZATION SCREEN
GB2211374A (en) * 1987-10-06 1989-06-28 Gen Electric Co Plc Optical information storage system

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3049666C2 (en) * 1979-04-25 1983-12-08 Hitachi Ltd Serial-parallel signal converter - has address counter controlling serial inputting of digital data signals in matrix memory
JPS55143652A (en) 1979-04-25 1980-11-10 Hitachi Ltd Series-parallel signal converter
GB2094052B (en) * 1981-03-04 1984-08-22 United Technologies Corp Gray shade operation of a large ac plasma display panel
FI62447C (en) * 1981-04-22 1982-12-10 Lohja Ab Oy FOERFARANDE FOER STYRNING AV BILDAOTERGIVNING OCH I SYNNERHET VAEXELSTROEMSELEKTROLUMINENSAOTERGIVNING
JPS61110198A (en) * 1984-11-05 1986-05-28 株式会社東芝 Matrix type display unit

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA949159A (en) * 1970-06-20 1974-06-11 Teruo Sato Scanning apparatus for dc el crossed-grid panel

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2211374A (en) * 1987-10-06 1989-06-28 Gen Electric Co Plc Optical information storage system
GB2211374B (en) * 1987-10-06 1992-03-18 Gen Electric Co Plc Information storage system
US5109287A (en) * 1987-10-06 1992-04-28 The General Electric Company, P.L.C. Information storage system
FR2622724A1 (en) * 1987-10-30 1989-05-05 Thomson Csf DEVICE FOR GENERATING BRIGHTNESS LEVELS ON A VISUALIZATION SCREEN
US5030947A (en) * 1987-10-30 1991-07-09 Thomson-Csf Device to generate brilliance levels on a display screen

Also Published As

Publication number Publication date
DE2843706A1 (en) 1979-04-12
FR2405603A1 (en) 1979-05-04
NL7810125A (en) 1979-04-10

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)