CA2183824A1 - Electron Generating Device, Image Display Apparatus, Driving Circuit Therefor, and Driving Method - Google Patents

Electron Generating Device, Image Display Apparatus, Driving Circuit Therefor, and Driving Method

Info

Publication number
CA2183824A1
CA2183824A1 CA2183824A CA2183824A CA2183824A1 CA 2183824 A1 CA2183824 A1 CA 2183824A1 CA 2183824 A CA2183824 A CA 2183824A CA 2183824 A CA2183824 A CA 2183824A CA 2183824 A1 CA2183824 A1 CA 2183824A1
Authority
CA
Canada
Prior art keywords
data wiring
current
wiring layer
constant
outputting
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
CA2183824A
Other languages
French (fr)
Other versions
CA2183824C (en
Inventor
Takahiro Oguchi
Hidetoshi Suzuki
Kunihiro Sakai
Takamasa Sakuragi
Yasuyuki Todokoro
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
Individual
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 Individual filed Critical Individual
Publication of CA2183824A1 publication Critical patent/CA2183824A1/en
Application granted granted Critical
Publication of CA2183824C publication Critical patent/CA2183824C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G09G3/2007—Display of intermediate tones
    • G09G3/2011—Display of intermediate tones by amplitude modulation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y10/00—Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
    • 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
    • G09G3/22—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 using controlled light sources
    • 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
    • G09G2310/0264—Details of driving circuits
    • G09G2310/027—Details of drivers for data electrodes, the drivers handling digital grey scale data, e.g. use of D/A converters
    • 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
    • G09G2310/0264—Details of driving circuits
    • G09G2310/0272—Details of drivers for data electrodes, the drivers communicating data to the pixels by means of a current
    • 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
    • G09G2310/0264—Details of driving circuits
    • G09G2310/0275—Details of drivers for data electrodes, other than drivers for liquid crystal, plasma or OLED displays, not related to handling digital grey scale data or to communication of data to the pixels by means of a current
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0223—Compensation for problems related to R-C delay and attenuation in electrodes of matrix panels, e.g. in gate electrodes or on-substrate video signal electrodes
    • 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
    • G09G3/2014—Display of intermediate tones by modulation of the duration of a single pulse during which the logic level remains constant
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2201/00—Electrodes common to discharge tubes
    • H01J2201/30—Cold cathodes
    • H01J2201/304—Field emission cathodes
    • H01J2201/30403—Field emission cathodes characterised by the emitter shape
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2201/00—Electrodes common to discharge tubes
    • H01J2201/30—Cold cathodes
    • H01J2201/316—Cold cathodes having an electric field parallel to the surface thereof, e.g. thin film cathodes
    • H01J2201/3165—Surface conduction emission type cathodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2329/00—Electron emission display panels, e.g. field emission display panels

Abstract

In order to prevent voltage drops across the wiring resistances in a multi-electron source having a plurality of electron emitters wired in the form of a matrix through a plurality of data wiring layers and a plurality of scanning wiring layers, a constant current signal is output to each data wiring layer. At this time, each non-selected data wiring layer tends to be set at a high impedance selected and vary in potential, resulting in an abnormal turn-on operation or an electron orbit shift. A
driving circuit for solving this problem is provided. A
switch for switching a constant current output unit for outputting a constant current regardless of the impedance of a signal output destination, and a constant voltage output unit for outputting a constant voltage regardless of the impedance of a signal output destination is connected to each data wiring layer. For example, a constant-current circuit (17) as a current output unit always outputs the same current (I1 to In) to a switch (30). A pulse width signal (PW1 to PWn) from a pulse-width modulation circuit (7) serves to switch the mode of outputting a current (I1 to In) to a data wiring layer (Dy1 to Dyn) and the mode of fixing a data wiring layer to voltage GND.
CA002183824A 1995-08-23 1996-08-21 Electron generating device, image display apparatus, driving circuit therefor, and driving method Expired - Fee Related CA2183824C (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP21455595 1995-08-23
JP7-214555 1995-08-23
JP8-000834 1996-01-08
JP83496 1996-01-08
JP8-209668 1996-08-08
JP20966896A JP3311246B2 (en) 1995-08-23 1996-08-08 Electron generating device, image display device, their driving circuit, and driving method

Publications (2)

Publication Number Publication Date
CA2183824A1 true CA2183824A1 (en) 1997-02-24
CA2183824C CA2183824C (en) 2000-03-21

Family

ID=27274629

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002183824A Expired - Fee Related CA2183824C (en) 1995-08-23 1996-08-21 Electron generating device, image display apparatus, driving circuit therefor, and driving method

Country Status (8)

Country Link
US (1) US6169528B1 (en)
EP (1) EP0762371B1 (en)
JP (1) JP3311246B2 (en)
KR (1) KR100347840B1 (en)
CN (1) CN1066553C (en)
AU (2) AU6420696A (en)
CA (1) CA2183824C (en)
DE (1) DE69636746T2 (en)

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Also Published As

Publication number Publication date
CN1144393A (en) 1997-03-05
KR100347840B1 (en) 2004-05-22
EP0762371A3 (en) 1997-07-30
US6169528B1 (en) 2001-01-02
AU715713B2 (en) 2000-02-10
EP0762371A2 (en) 1997-03-12
EP0762371B1 (en) 2006-12-06
CN1066553C (en) 2001-05-30
KR970012901A (en) 1997-03-29
DE69636746D1 (en) 2007-01-18
AU2135599A (en) 1999-05-27
JP3311246B2 (en) 2002-08-05
AU6420696A (en) 1997-02-27
DE69636746T2 (en) 2007-10-11
JPH09251277A (en) 1997-09-22
CA2183824C (en) 2000-03-21

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20150821