GB201109499D0 - Neighbourhood brightness matching for uniformity in a tiled display screen - Google Patents

Neighbourhood brightness matching for uniformity in a tiled display screen

Info

Publication number
GB201109499D0
GB201109499D0 GBGB1109499.2A GB201109499A GB201109499D0 GB 201109499 D0 GB201109499 D0 GB 201109499D0 GB 201109499 A GB201109499 A GB 201109499A GB 201109499 D0 GB201109499 D0 GB 201109499D0
Authority
GB
United Kingdom
Prior art keywords
brightness
tile
display system
uniformity
tiled display
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
GBGB1109499.2A
Other versions
GB2481122A (en
GB2481122B (en
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.)
Prysm Inc
Original Assignee
Prysm 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
Priority claimed from US12/980,611 external-priority patent/US20110298763A1/en
Application filed by Prysm Inc filed Critical Prysm Inc
Publication of GB201109499D0 publication Critical patent/GB201109499D0/en
Publication of GB2481122A publication Critical patent/GB2481122A/en
Application granted granted Critical
Publication of GB2481122B publication Critical patent/GB2481122B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G06F3/1423—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display
    • G06F3/1446—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display display composed of modules, e.g. video walls
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/302—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements characterised by the form or geometrical disposition of the individual elements
    • G09F9/3026—Video wall, i.e. stackable semiconductor matrix display modules
    • 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
    • G09G3/3426—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines the different display panel areas being distributed in two dimensions, e.g. matrix
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Human Computer Interaction (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Computer Hardware Design (AREA)
  • Transforming Electric Information Into Light Information (AREA)

Abstract

Brightness between the individual tiles of a tiled display system 260 is matched for improved uniformity and overall brightness of images produced by the display system. Regions 253 of the display system adjacent to a tile 251 with low brightness performance are incremented in brightness from the brightness level of the low brightness tile to the brightness level of higher brightness tiles 254. By incrementing the brightness of such regions according to embodiments of the invention, perceived brightness uniformity of images produced by the tiled display system is maintained while maximizing the overall brightness of the display device. The regions used to increment brightness may be as large as an entire tile or as small as a single pixel element. A luminance detector sends luminance information to a control unit which determines if the brightness of a first tile is below a threshold value, if so the brightness of adjacent tiles is adjusted.
GB1109499.2A 2010-06-07 2011-06-07 Neighbourhood brightness matching for uniformity in a tiled display screen Expired - Fee Related GB2481122B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN1318DE2010 2010-06-07
US12/980,611 US20110298763A1 (en) 2010-06-07 2010-12-29 Neighborhood brightness matching for uniformity in a tiled display screen

Publications (3)

Publication Number Publication Date
GB201109499D0 true GB201109499D0 (en) 2011-07-20
GB2481122A GB2481122A (en) 2011-12-14
GB2481122B GB2481122B (en) 2017-08-09

Family

ID=44974033

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1109499.2A Expired - Fee Related GB2481122B (en) 2010-06-07 2011-06-07 Neighbourhood brightness matching for uniformity in a tiled display screen

Country Status (3)

Country Link
CN (1) CN102270445A (en)
DE (1) DE102011077142B4 (en)
GB (1) GB2481122B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103137097A (en) * 2011-11-24 2013-06-05 宁波Gqy视讯股份有限公司 Split joint screen red, green, blue (RGB) brightness adjusting method
CN113077724A (en) * 2021-03-22 2021-07-06 Tcl华星光电技术有限公司 Concatenation formula lamp plate and display device

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US8525752B2 (en) * 2011-12-13 2013-09-03 International Business Machines Corporation System and method for automatically adjusting electronic display settings
CN102750931B (en) * 2012-07-25 2015-05-27 广东威创视讯科技股份有限公司 Method and device for adjusting conformity of spliced wall
CN103813116A (en) * 2012-11-15 2014-05-21 深圳市光峰光电技术有限公司 Adjusting method, adjusting device, light machine and screen splicing wall system
CN104103255B (en) * 2013-04-07 2018-09-07 深圳富泰宏精密工业有限公司 Display screen correction system and method
US20150022727A1 (en) * 2013-07-19 2015-01-22 Google Inc. Tileable display apparatus
US9336729B2 (en) * 2013-07-19 2016-05-10 Google Inc. Optical configurations in a tileable display apparatus
CN103985324B (en) * 2014-05-31 2016-10-05 深圳市华星光电技术有限公司 Flexible splicing display device
CN104299601B (en) * 2014-08-25 2016-06-08 京东方科技集团股份有限公司 Mosaic screen backlight illumination Automatic adjustment method and device, mosaic screen
CN104795048B (en) * 2015-04-14 2017-08-29 广东威创视讯科技股份有限公司 Mosaic display screen color calibration method and system
CN105047177A (en) * 2015-08-19 2015-11-11 京东方科技集团股份有限公司 Display equipment adjustment device, display equipment adjustment method, and display device
CN106409206A (en) * 2016-09-21 2017-02-15 北京京东方专用显示科技有限公司 Display image brightness compensation method and compensation device
CN106710517B (en) * 2016-11-17 2019-01-29 西安诺瓦电子科技有限公司 LED display bearing calibration
CN106448576B (en) * 2016-11-28 2019-08-30 京东方科技集团股份有限公司 The driving method of mosaic screen and the driving device of mosaic screen
KR102581190B1 (en) * 2016-12-14 2023-09-21 삼성전자주식회사 Display apparatus and seam correction method thereof
CN107221306B (en) * 2017-06-29 2019-07-16 上海顺久电子科技有限公司 The method, apparatus and display equipment of brightness of image in correction splicing device screen
CN107665666B (en) * 2017-10-31 2019-10-01 京东方科技集团股份有限公司 The gamma electric voltage bearing calibration of display module and system
CN108320714A (en) * 2017-12-30 2018-07-24 广东创捷智能科技有限公司 A kind of brightness uniformity display methods and device applied to liquid crystal-spliced screen
CN108831386B (en) * 2018-06-27 2020-06-30 京东方科技集团股份有限公司 Backlight module and control method thereof, tiled display device and backlight control method thereof, and display module
CN109887453A (en) * 2019-03-15 2019-06-14 Oppo广东移动通信有限公司 Display control method, device and the electronic equipment of electronic equipment
US11222568B2 (en) 2020-04-30 2022-01-11 Tcl China Star Optoelectronics Technology Co., Ltd. Spliced display device
CN111429831B (en) * 2020-04-30 2021-11-02 Tcl华星光电技术有限公司 Tiled display device
CN112767849B (en) * 2021-02-01 2022-05-03 Tcl华星光电技术有限公司 Tiled display panel, driving method thereof and tiled display device
CN112863423B (en) * 2021-02-22 2022-07-05 合肥维信诺科技有限公司 Display panel and display device
WO2023123240A1 (en) * 2021-12-30 2023-07-06 京东方科技集团股份有限公司 Tiled screen and display compensation method therefor
CN114283742B (en) * 2022-01-14 2022-11-08 季华实验室 Method and device for correcting brightness of display unit after replacement, electronic equipment and storage medium

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WO1993019453A1 (en) * 1992-03-16 1993-09-30 Photon Dynamics, Inc. Flat panel display inspection system
US6271825B1 (en) * 1996-04-23 2001-08-07 Rainbow Displays, Inc. Correction methods for brightness in electronic display
US7334901B2 (en) * 2005-04-22 2008-02-26 Ostendo Technologies, Inc. Low profile, large screen display using a rear projection array system
JP2007067313A (en) * 2005-09-02 2007-03-15 Sharp Corp Led backlight device, and image display apparatus therewith
JP5020980B2 (en) * 2006-02-15 2012-09-05 プリズム インコーポレイテッド Servo-assisted scanning beam display system using fluorescent screen
US7936943B2 (en) * 2007-07-02 2011-05-03 Hewlett-Packard Development Company, L. P. Correcting luminance non-uniformity in a tiled projection system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103137097A (en) * 2011-11-24 2013-06-05 宁波Gqy视讯股份有限公司 Split joint screen red, green, blue (RGB) brightness adjusting method
CN103137097B (en) * 2011-11-24 2015-04-01 宁波Gqy视讯股份有限公司 Split joint screen red, green, blue (RGB) brightness adjusting method
CN113077724A (en) * 2021-03-22 2021-07-06 Tcl华星光电技术有限公司 Concatenation formula lamp plate and display device
CN113077724B (en) * 2021-03-22 2022-05-03 Tcl华星光电技术有限公司 Concatenation formula lamp plate and display device

Also Published As

Publication number Publication date
DE102011077142B4 (en) 2013-09-05
CN102270445A (en) 2011-12-07
DE102011077142A1 (en) 2011-12-08
GB2481122A (en) 2011-12-14
GB2481122B (en) 2017-08-09

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20190607