ATE145492T1 - IMAGE INFORMATION CONTROL DEVICE AND DISPLAY SYSTEM - Google Patents

IMAGE INFORMATION CONTROL DEVICE AND DISPLAY SYSTEM

Info

Publication number
ATE145492T1
ATE145492T1 AT91110530T AT91110530T ATE145492T1 AT E145492 T1 ATE145492 T1 AT E145492T1 AT 91110530 T AT91110530 T AT 91110530T AT 91110530 T AT91110530 T AT 91110530T AT E145492 T1 ATE145492 T1 AT E145492T1
Authority
AT
Austria
Prior art keywords
partial
partial write
signal
circuit
state
Prior art date
Application number
AT91110530T
Other languages
German (de)
Inventor
Hiroshi C O Canon Kabush Inoue
Original Assignee
Canon Kk
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 Kk filed Critical Canon Kk
Application granted granted Critical
Publication of ATE145492T1 publication Critical patent/ATE145492T1/en

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
    • 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
    • G09G3/3648—Control of matrices with row and column drivers using an active matrix
    • G09G3/3651—Control of matrices with row and column drivers using an active matrix using multistable liquid crystals, 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
    • G09G3/3622—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
    • G09G2310/04—Partial updating of the display screen

Abstract

An image information control apparatus includes a partial write detector having at least two types of memory units for detecting and storing addresses accessed to a VRAM in units of lines in a scanning direction, thereby repeating the detection and the storage at different cycles, a circuit for performing calculations to recognize partial write information from contents of each of the memory units, memory units for storing the respective calculation results, a circuit for comparing the memory contents to determine a size relationship between partial write areas, a partial write ID signal controller for controlling a partial write ID signal on the basis of the size relationship between partial write areas and externally outputting the signal, and a circuit for, even when partial writing is being executed, forcibly interrupting the partial writing in accordance with a state of an external refresh control signal, starting refresh, and restarting the partial writing in accordance with a partial write state and a change in state of the refresh control signal. <IMAGE>
AT91110530T 1990-06-27 1991-06-26 IMAGE INFORMATION CONTROL DEVICE AND DISPLAY SYSTEM ATE145492T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2171102A JP2840398B2 (en) 1990-06-27 1990-06-27 Image information control device and display system

Publications (1)

Publication Number Publication Date
ATE145492T1 true ATE145492T1 (en) 1996-12-15

Family

ID=15917018

Family Applications (1)

Application Number Title Priority Date Filing Date
AT91110530T ATE145492T1 (en) 1990-06-27 1991-06-26 IMAGE INFORMATION CONTROL DEVICE AND DISPLAY SYSTEM

Country Status (5)

Country Link
EP (1) EP0464620B1 (en)
JP (1) JP2840398B2 (en)
KR (1) KR950012016B1 (en)
AT (1) ATE145492T1 (en)
DE (1) DE69123182T2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0558342B1 (en) * 1992-02-28 1997-08-20 Canon Kabushiki Kaisha Display control apparatus and method
JP3156977B2 (en) * 1992-05-19 2001-04-16 キヤノン株式会社 Display control device and method
ATE151902T1 (en) * 1992-05-19 1997-05-15 Canon Kk METHOD AND DEVICE FOR CONTROLLING A DISPLAY
DE69421832D1 (en) * 1993-01-11 2000-01-05 Canon Kk Color display device
AU672648B2 (en) * 1993-01-11 1996-10-10 Canon Kabushiki Kaisha Display line dispatcher apparatus
EP0608056B1 (en) * 1993-01-11 1998-07-29 Canon Kabushiki Kaisha Display line dispatcher apparatus
CN102737589A (en) * 2011-03-29 2012-10-17 宏碁股份有限公司 Control method used for liquid crystal display device and liquid crystal display device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU617006B2 (en) * 1988-09-29 1991-11-14 Canon Kabushiki Kaisha Data processing system and apparatus
AU634725B2 (en) * 1988-10-31 1993-03-04 Canon Kabushiki Kaisha Display system

Also Published As

Publication number Publication date
DE69123182T2 (en) 1997-04-24
DE69123182D1 (en) 1997-01-02
KR920001418A (en) 1992-01-30
EP0464620B1 (en) 1996-11-20
EP0464620A3 (en) 1992-12-23
EP0464620A2 (en) 1992-01-08
JPH0458221A (en) 1992-02-25
JP2840398B2 (en) 1998-12-24
KR950012016B1 (en) 1995-10-13

Similar Documents

Publication Publication Date Title
KR890009647A (en) Method and apparatus for monitoring moving object
DE69426733D1 (en) Semiconductor memory device with register for holding a test result signal
DE69123182T2 (en) Image information control device and display system
KR920015369A (en) TFT LCD Control Method for Setting Display Controller to Idle State During Non-Access to VRAM
KR860000595A (en) Memory access control method for information processing device
KR920015257A (en) Display control system to display data in accordance with VRAM write access detection
KR900005795A (en) Image reading device
KR970701475A (en) Image fluctuation correction device and method
KR860004349A (en) Process I / O Device of Sequence Controller
KR970071269A (en) Integrated digital processing apparatus and operation inspection method thereof.
DE69329134D1 (en) Semiconductor storage device with spare columns
KR900016872A (en) Data Processing Unit with Expandable Memory Capacity
KR880011664A (en) Microcomputer system
ATE159358T1 (en) IMAGE INFORMATION CONTROL DEVICE AND DISPLAY SYSTEM
KR940005688B1 (en) Automatic precharge detecting device of the data line in memory element
KR950034262A (en) Low Power Consumption Semiconductor Memory Device
KR920015281A (en) Information detection device using rectangular disk
JP2683537B2 (en) Target system operation data signal detection display device
JPS6470848A (en) Picture display control system
KR890005652A (en) Device that displays sprites on the screen
KR0122339B1 (en) Backup apparatus with chip mount system
KR930006552A (en) Peripheral device, floppy disk device and its control method, and data processing system
KR980007765A (en) Device and method for motion detection using associative memory
KR950010676A (en) Remote Control Signal Check
JPH04373058A (en) Buffer control system

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties