GB2569791B - Display system with defect correction - Google Patents

Display system with defect correction Download PDF

Info

Publication number: GB2569791B
Authority: GB; United Kingdom
Prior art keywords: display system; defect correction; defect; correction; display
Prior art date: 2017-12-21
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.): Active

Application number

GB1721567.4A

Other versions

GB201721567D0 (en

GB2569791A (en

Inventor

David Cooper Patrick

Christopher Doidge Ian

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.)

DisplayLink UK Ltd

Original Assignee

DisplayLink UK 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.)

2017-12-21

Filing date

2017-12-21

Publication date

2022-10-05

2017-12-21Application filed by DisplayLink UK LtdfiledCriticalDisplayLink UK Ltd

2017-12-21Priority to GB1721567.4ApriorityCriticalpatent/GB2569791B/en

2018-02-07Publication of GB201721567D0publicationCriticalpatent/GB201721567D0/en

2019-07-03Publication of GB2569791ApublicationCriticalpatent/GB2569791A/en

2022-10-05Application grantedgrantedCritical

2022-10-05Publication of GB2569791BpublicationCriticalpatent/GB2569791B/en

StatusActivelegal-statusCriticalCurrent

2037-12-21Anticipated expirationlegal-statusCritical

Classifications

- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T5/00—Image enhancement or restoration
- 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
- G09G3/001—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background
- G09G3/003—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background to produce spatial visual effects
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T5/00—Image enhancement or restoration
- G06T5/90—Dynamic range modification of images or parts thereof
- G06T5/94—Dynamic range modification of images or parts thereof based on local image properties, e.g. for local contrast enhancement
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
- H04N13/106—Processing image signals
- H04N13/133—Equalising the characteristics of different image components, e.g. their average brightness or colour balance
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
- H04N13/106—Processing image signals
- H04N13/15—Processing image signals for colour aspects of image signals
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
- H04N13/106—Processing image signals
- H04N13/161—Encoding, multiplexing or demultiplexing different image signal components
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
- H04N13/106—Processing image signals
- H04N13/172—Processing image signals image signals comprising non-image signal components, e.g. headers or format information
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/20—Image signal generators
- H04N13/257—Colour aspects
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/324—Colour aspects
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/332—Displays for viewing with the aid of special glasses or head-mounted displays [HMD]
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
- H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/64—Circuits for processing colour signals
- H04N9/646—Circuits for processing colour signals for image enhancement, e.g. vertical detail restoration, cross-colour elimination, contour correction, chrominance trapping filters
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/20—Special algorithmic details
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/20—Special algorithmic details
- G06T2207/20021—Dividing image into blocks, subimages or windows
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30108—Industrial image inspection
- G06T2207/30121—CRT, LCD or plasma 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
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0233—Improving the luminance or brightness uniformity across the 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
- G09G2320/0285—Improving the quality of display appearance using tables for spatial correction of display data
- 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
- G09G2340/02—Handling of images in compressed format, e.g. JPEG, MPEG
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N2013/0074—Stereoscopic image analysis
- H04N2013/0077—Colour aspects

Landscapes

Engineering & Computer Science (AREA)
Multimedia (AREA)
Signal Processing (AREA)
Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Theoretical Computer Science (AREA)
Computer Hardware Design (AREA)
Liquid Crystal Display Device Control (AREA)
Control Of Indicators Other Than Cathode Ray Tubes (AREA)

GB1721567.4A2017-12-212017-12-21Display system with defect correctionActiveGB2569791B (en)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
GB1721567.4AGB2569791B (en)	2017-12-21	2017-12-21	Display system with defect correction

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB1721567.4AGB2569791B (en)	2017-12-21	2017-12-21	Display system with defect correction

Publications (3)

Publication Number	Publication Date
GB201721567D0 GB201721567D0 (en)	2018-02-07
GB2569791A GB2569791A (en)	2019-07-03
GB2569791Btrue GB2569791B (en)	2022-10-05

Family

ID=61131701

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB1721567.4AActiveGB2569791B (en)	2017-12-21	2017-12-21	Display system with defect correction

Country Status (1)

Country	Link
GB (1)	GB2569791B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN111524102B (en)*	2020-04-10	2024-04-16	京东方科技集团股份有限公司	A method and device for detecting screen dirtiness of a liquid crystal display

Citations (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP1330131A2 (en)*	2002-01-21	2003-07-23	Thomson Licensing S.A.	Color non-uniformity correction for lcos
WO2003083559A2 (en)*	2002-03-27	2003-10-09	Thomson Licensing S.A.	Color non-uniformity alignment for light engines
US20100123774A1 (en)*	2008-11-18	2010-05-20	Hideo Tomita	Image display apparatus and image display method
US20140301658A1 (en)*	2013-04-04	2014-10-09	Nvidia Corporation	Per pixel mapping for image enhancement
US20140340390A1 (en)*	2013-05-17	2014-11-20	Nvidia Corporation	System, method, and computer program product to produce images for a near-eye light field display having a defect
WO2016149877A1 (en)*	2015-03-20	2016-09-29	华为技术有限公司	Method for correcting screen asymmetry and device and system thereof

2017
- 2017-12-21GBGB1721567.4Apatent/GB2569791B/enactiveActive

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP1330131A2 (en)*	2002-01-21	2003-07-23	Thomson Licensing S.A.	Color non-uniformity correction for lcos
WO2003083559A2 (en)*	2002-03-27	2003-10-09	Thomson Licensing S.A.	Color non-uniformity alignment for light engines
US20100123774A1 (en)*	2008-11-18	2010-05-20	Hideo Tomita	Image display apparatus and image display method
US20140301658A1 (en)*	2013-04-04	2014-10-09	Nvidia Corporation	Per pixel mapping for image enhancement
US20140340390A1 (en)*	2013-05-17	2014-11-20	Nvidia Corporation	System, method, and computer program product to produce images for a near-eye light field display having a defect
WO2016149877A1 (en)*	2015-03-20	2016-09-29	华为技术有限公司	Method for correcting screen asymmetry and device and system thereof

Also Published As

Publication number	Publication date
GB201721567D0 (en)	2018-02-07
GB2569791A (en)	2019-07-03

Publication	Publication Date	Title
GB2565834B (en)	2020-05-20	Display system
EP3529529C0 (en)	2023-09-20	Display support system
PL3268816T3 (en)	2019-09-30	Display system
GB2547926B (en)	2020-04-29	Display system
TWI561137B (en)	2016-12-01	Curved display
GB201500693D0 (en)	2015-03-04	Display System
GB2524132B (en)	2016-03-16	Display screen mount
GB201511677D0 (en)	2015-08-19	Crystal defects
EP3396492A4 (en)	2019-07-31	Flexible display screen system
GB2542348B (en)	2019-04-17	Windscreen display system
GB201713586D0 (en)	2017-10-11	Display
GB201707478D0 (en)	2017-06-21	Display arrangement
GB201719239D0 (en)	2018-01-03	Defect detection and correction
GB201809760D0 (en)	2018-08-01	Display
TWI562107B (en)	2016-12-11	Display
GB201510302D0 (en)	2015-07-29	Vehicle with advertising screen
GB201709734D0 (en)	2017-08-02	Display
GB201803487D0 (en)	2018-04-18	Displays
EP3574385A4 (en)	2020-10-28	Display supports
EP3564741C0 (en)	2023-11-22	Pixel unit structure
GB201803489D0 (en)	2018-04-18	Displays
GB2569791B (en)	2022-10-05	Display system with defect correction
GB201604885D0 (en)	2016-05-04	Digital display
GB2549112B (en)	2021-09-15	Display system
GB2544939B (en)	2020-07-15	Image compensation method and display with image compensation

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