EP0421772A3 - Display apparatus - Google Patents

Display apparatus Download PDF

Info

Publication number
EP0421772A3
EP0421772A3 EP19900310846 EP90310846A EP0421772A3 EP 0421772 A3 EP0421772 A3 EP 0421772A3 EP 19900310846 EP19900310846 EP 19900310846 EP 90310846 A EP90310846 A EP 90310846A EP 0421772 A3 EP0421772 A3 EP 0421772A3
Authority
EP
European Patent Office
Prior art keywords
display
data
output circuit
pixel
image data
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
EP19900310846
Other versions
EP0421772A2 (en
EP0421772B1 (en
Inventor
Atsushi Mizutome
Hiroshi Inoue
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Publication of EP0421772A2 publication Critical patent/EP0421772A2/en
Publication of EP0421772A3 publication Critical patent/EP0421772A3/en
Application granted granted Critical
Publication of EP0421772B1 publication Critical patent/EP0421772B1/en
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
    • G09G3/3622—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
    • G09G3/364—Control of matrices with row and column drivers using a passive matrix using liquid crystals having memory effects, e.g. ferroelectric liquid crystals with use of subpixels
    • 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
    • G09G3/20—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
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0232—Special driving of display border areas
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00—Aspects of display data processing
    • G09G2340/04—Changes in size, position or resolution of an image
    • G09G2340/0407—Resolution change, inclusive of the use of different resolutions for different screen areas
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00—Aspects of display data processing
    • G09G2340/04—Changes in size, position or resolution of an image
    • G09G2340/0464—Positioning
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/02—Graphics controller able to handle multiple formats, e.g. input or output formats
    • 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
    • G09G3/2007—Display of intermediate tones
    • G09G3/2074—Display of intermediate tones using sub-pixels

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Compounds Of Unknown Constitution (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Vehicle Body Suspensions (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Image Generation (AREA)
  • Liquid Crystal (AREA)
  • Led Device Packages (AREA)
  • Forging (AREA)

Abstract

There is provided a display apparatus which uses a display panel using a liquid crystal having a bistability or a memory performance such as a ferroelectric liquid crystal and can display image data in various display modes in which the number of pixels (resolution), display color, minimum pixel unit, and the like respectively differ. The display apparatus comprises: a memory to store the image data; a pixel data output circuit to output the image data stored in the memory every pixel data; a converter to convert the pixel data which was output from the pixel data output circuit into binary data which is displayed on the display panel; a display data output circuit for converting the binary data converted by the converter into the display data corresponding to the display modc and outputting; and a display controller for allowing the image data which was output by the display data output circuit to be displayed on the display panel. A multiplexer is used as a pixel data output circuit. An RAM in which binary data has been stored is used as a converter.
EP90310846A 1989-10-06 1990-10-04 Display apparatus Expired - Lifetime EP0421772B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1261297A JP2877381B2 (en) 1989-10-06 1989-10-06 Display device and display method
JP261297/89 1989-10-06

Publications (3)

Publication Number Publication Date
EP0421772A2 EP0421772A2 (en) 1991-04-10
EP0421772A3 true EP0421772A3 (en) 1992-11-19
EP0421772B1 EP0421772B1 (en) 1995-12-27

Family

ID=17359841

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90310846A Expired - Lifetime EP0421772B1 (en) 1989-10-06 1990-10-04 Display apparatus

Country Status (10)

Country Link
EP (1) EP0421772B1 (en)
JP (1) JP2877381B2 (en)
KR (2) KR940002237B1 (en)
AT (1) ATE132287T1 (en)
AU (1) AU638754B2 (en)
CA (1) CA2027043C (en)
DE (1) DE69024448T2 (en)
DK (1) DK0421772T3 (en)
ES (1) ES2081942T3 (en)
GR (1) GR3018924T3 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3126360B2 (en) * 1989-09-01 2001-01-22 キヤノン株式会社 Display system and display control method thereof
JPH0455890A (en) * 1990-06-25 1992-02-24 Canon Inc Image data controller and display system
US5420603A (en) * 1991-02-20 1995-05-30 Canon Kabushiki Kaisha Display apparatus
JP3143493B2 (en) * 1991-06-21 2001-03-07 キヤノン株式会社 Display control device
DE69431006D1 (en) 1993-01-11 2002-08-29 Canon Kk Clipping the hue area
AU674037B2 (en) * 1993-01-11 1996-12-05 Canon Kabushiki Kaisha Colour gamut clipping
AU679320B2 (en) * 1994-03-11 1997-06-26 Canon Kabushiki Kaisha Computer display system controller
ES2114812B1 (en) * 1996-03-25 1999-02-16 Desarrollos Electronicos Proym APPARATUS TO PROVIDE PRE-PROGRAMMED INFORMATION.
JPH09325741A (en) 1996-05-31 1997-12-16 Sony Corp Picture display system
WO1998010405A1 (en) * 1996-09-03 1998-03-12 United Technologies Automotive, Inc. Method of controlling display image shading depending on image resolution
US5758135A (en) * 1996-09-24 1998-05-26 Seiko Epson Corporation System and method for fast clocking a digital display in a multiple concurrent display system
JP2982722B2 (en) * 1996-12-04 1999-11-29 日本電気株式会社 Video display device
JP3572473B2 (en) 1997-01-30 2004-10-06 株式会社ルネサステクノロジ Liquid crystal display control device
GB0000715D0 (en) * 2000-01-14 2000-03-08 Micropix Technologies Limited A liquid crystal display
JP4161574B2 (en) * 2000-05-24 2008-10-08 株式会社日立製作所 Color / monochrome switchable portable terminal and display device
CN111175562A (en) * 2019-12-31 2020-05-19 常州瑞莱博自动化科技有限公司 Bistable liquid crystal current indicator

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0195203A2 (en) * 1985-03-19 1986-09-24 Ascii Corporation Display controller
EP0295691A2 (en) * 1987-06-19 1988-12-21 Kabushiki Kaisha Toshiba Display mode switching system for plasma display apparatus

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5731268A (en) * 1980-07-31 1982-02-19 Matsushita Electric Ind Co Ltd Frame signal generator
JPS6151554U (en) * 1984-09-05 1986-04-07
JPS6167024A (en) * 1984-09-10 1986-04-07 Canon Inc Driving method of liquid crystal element
JP2535324B2 (en) * 1985-05-13 1996-09-18 キヤノン株式会社 Display controller
JPS6334593A (en) * 1986-07-30 1988-02-15 ホシデン株式会社 Multi-contrast display
JP2797435B2 (en) * 1989-05-26 1998-09-17 ヤマハ株式会社 Display controller

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0195203A2 (en) * 1985-03-19 1986-09-24 Ascii Corporation Display controller
EP0295691A2 (en) * 1987-06-19 1988-12-21 Kabushiki Kaisha Toshiba Display mode switching system for plasma display apparatus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 10, no. 232 (P-486)12 August 1986 & JP-A-61 067 024 ( CANON INC ) 7 April 1986 *

Also Published As

Publication number Publication date
DE69024448T2 (en) 1996-05-23
KR910008602A (en) 1991-05-31
AU6385890A (en) 1991-04-11
DK0421772T3 (en) 1996-01-29
EP0421772A2 (en) 1991-04-10
ES2081942T3 (en) 1996-03-16
EP0421772B1 (en) 1995-12-27
GR3018924T3 (en) 1996-05-31
KR940002237B1 (en) 1994-03-19
KR940002345B1 (en) 1994-03-23
DE69024448D1 (en) 1996-02-08
JPH03123386A (en) 1991-05-27
CA2027043A1 (en) 1991-04-07
AU638754B2 (en) 1993-07-08
CA2027043C (en) 1995-02-14
ATE132287T1 (en) 1996-01-15
JP2877381B2 (en) 1999-03-31

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