GB2314196A - A display - Google Patents

A display

Info

Publication number
GB2314196A
GB2314196A GB9715334A GB9715334A GB2314196A GB 2314196 A GB2314196 A GB 2314196A GB 9715334 A GB9715334 A GB 9715334A GB 9715334 A GB9715334 A GB 9715334A GB 2314196 A GB2314196 A GB 2314196A
Authority
GB
United Kingdom
Prior art keywords
display
light
light modulator
light source
addressable
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
GB9715334A
Other versions
GB9715334D0 (en
GB2314196B (en
Inventor
Paul May
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.)
Cambridge Display Technology Ltd
Original Assignee
Cambridge Display Technology 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 GBGB9507861.4A external-priority patent/GB9507861D0/en
Priority claimed from GBGB9516468.7A external-priority patent/GB9516468D0/en
Application filed by Cambridge Display Technology Ltd filed Critical Cambridge Display Technology Ltd
Priority to GB9715334A priority Critical patent/GB2314196B/en
Priority claimed from PCT/GB1996/000924 external-priority patent/WO1996033483A1/en
Publication of GB9715334D0 publication Critical patent/GB9715334D0/en
Publication of GB2314196A publication Critical patent/GB2314196A/en
Application granted granted Critical
Publication of GB2314196B publication Critical patent/GB2314196B/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
    • G09G3/34—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
    • G09G3/3406—Control of illumination source
    • G09G3/342—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133621—Illuminating devices providing coloured light
    • G02F1/133622—Colour sequential illumination
    • 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
    • G09G2310/024—Scrolling of light from the illumination source over the display in combination with the scanning of the display screen
    • 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
    • G09G2320/0209—Crosstalk reduction, i.e. to reduce direct or indirect influences of signals directed to a certain pixel of the displayed image on other pixels of said image, inclusive of influences affecting pixels in different frames or fields or sub-images which constitute a same image, e.g. left and right images of a stereoscopic display
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

A display comprises a light modulator defining an array of pixels arranged in rows (2) and columns (3) and addressable to select between at least an opaque state for each pixel and a transparent state for each pixel. The display includes a light emitting device arranged adjacent the light modulator to act as a light source for the display. The light modulator is a passive matrix liquid crystal display device and the light source is an electroluminescent LED. The light source is addressable to emit light from selected regions LER, each region overlapping at least a plurality of rows (2) of the light modulator. In this way, the problem of electrical cross-talk in the display is reduced.
GB9715334A 1995-04-18 1996-04-17 A display Expired - Fee Related GB2314196B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9715334A GB2314196B (en) 1995-04-18 1996-04-17 A display

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GBGB9507861.4A GB9507861D0 (en) 1995-04-18 1995-04-18 Backlights for light modulators
GBGB9516468.7A GB9516468D0 (en) 1995-04-18 1995-08-11 A display
PCT/GB1996/000924 WO1996033483A1 (en) 1995-04-18 1996-04-17 A display
GB9715334A GB2314196B (en) 1995-04-18 1996-04-17 A display

Publications (3)

Publication Number Publication Date
GB9715334D0 GB9715334D0 (en) 1997-11-26
GB2314196A true GB2314196A (en) 1997-12-17
GB2314196B GB2314196B (en) 1998-06-17

Family

ID=27267675

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9715334A Expired - Fee Related GB2314196B (en) 1995-04-18 1996-04-17 A display

Country Status (1)

Country Link
GB (1) GB2314196B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2359178A (en) * 1999-11-13 2001-08-15 British Ind Graphics Ltd Improvements in and relating to display units

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991010223A1 (en) * 1989-12-22 1991-07-11 David Sarnoff Research Center, Inc. Field-sequential display system utilizing a backlit lcd pixel array and method for forming an image
WO1993013514A1 (en) * 1991-12-23 1993-07-08 Panocorp Display Systems Color fluorescent backlight for liquid crystal display
US5247190A (en) * 1989-04-20 1993-09-21 Cambridge Research And Innovation Limited Electroluminescent devices

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5247190A (en) * 1989-04-20 1993-09-21 Cambridge Research And Innovation Limited Electroluminescent devices
WO1991010223A1 (en) * 1989-12-22 1991-07-11 David Sarnoff Research Center, Inc. Field-sequential display system utilizing a backlit lcd pixel array and method for forming an image
WO1993013514A1 (en) * 1991-12-23 1993-07-08 Panocorp Display Systems Color fluorescent backlight for liquid crystal display

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Journal of Applied Physics vol. 65 no.9 pages 3610-3616 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2359178A (en) * 1999-11-13 2001-08-15 British Ind Graphics Ltd Improvements in and relating to display units
GB2359178B (en) * 1999-11-13 2003-09-10 British Ind Graphics Ltd Improvements in and relating to display units

Also Published As

Publication number Publication date
GB9715334D0 (en) 1997-11-26
GB2314196B (en) 1998-06-17

Similar Documents

Publication Publication Date Title
CA2085446A1 (en) Organic electroluminescent multicolor image display device
US6111560A (en) Display with a light modulator and a light source
EP2275860A3 (en) Wiring and sealing scheme for an active matrix display device
US6817123B2 (en) Display device
KR910003554A (en) Video display device
CA2085318A1 (en) Organic electroluminescent multicolor image display device and process for its fabrication
EP0302653B1 (en) Colour display
US20100134522A1 (en) Liquid crystal display comprising a scanning backlight
ATE180578T1 (en) HEAD-WORN DISPLAY DEVICE
KR830005618A (en) Display device
CA2085298A1 (en) Organic electroluminescent image display device and process for its fabrication
KR970067058A (en) Integrated electro-optical package with independent menu bar
GB2435574A (en) Multi-line addressing methods and apparatus
RU2005129848A (en) DISPLAY AREA STRUCTURES
ATE165921T1 (en) LIQUID CRYSTAL DISPLAY DEVICE
WO2002079862A3 (en) Direct backlighting for liquid crystal displays
MY138735A (en) Display device
DK0676078T3 (en) Selection drive circuit for a liquid crystal display
US10921646B2 (en) Display device and method for manufacturing the same
KR20010043751A (en) Method and apparatus for displaying bitmap multi-color image data on dot matrix-type display screen on which three primary color lamps are dispersedly arrayed
KR20080078662A (en) Distributing and driving light sources of backlights
JPH1195693A (en) Display device
KR970019694A (en) Display device and display system
WO2021192547A1 (en) Display device
GB2314196A (en) A display

Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20070417