WO2018206088A1 - System and method for adjusting settings of a video wall display system - Google Patents

System and method for adjusting settings of a video wall display system Download PDF

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Publication number
WO2018206088A1
WO2018206088A1 PCT/EP2017/061061 EP2017061061W WO2018206088A1 WO 2018206088 A1 WO2018206088 A1 WO 2018206088A1 EP 2017061061 W EP2017061061 W EP 2017061061W WO 2018206088 A1 WO2018206088 A1 WO 2018206088A1
Authority
WO
WIPO (PCT)
Prior art keywords
image display
wall system
video wall
display device
video
Prior art date
Application number
PCT/EP2017/061061
Other languages
French (fr)
Inventor
Ozgur OZEN
Mertcan ASCI
Tevfik Orkun
Dogan BAHAROZU
Omer ALTUNAY
Original Assignee
Arcelik Anonim Sirketi
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 Arcelik Anonim Sirketi filed Critical Arcelik Anonim Sirketi
Priority to PCT/EP2017/061061 priority Critical patent/WO2018206088A1/en
Priority to TR2018/01628A priority patent/TR201801628A2/en
Publication of WO2018206088A1 publication Critical patent/WO2018206088A1/en

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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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N17/00—Diagnosis, testing or measuring for television systems or their details
    • H04N17/04—Diagnosis, testing or measuring for television systems or their details for receivers
    • 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
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0606—Manual adjustment
    • 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
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0693—Calibration of display systems
    • 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
    • G09G2320/08—Arrangements within a display terminal for setting, manually or automatically, display parameters of the display terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
    • H04N21/42204—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/64—Constructional details of receivers, e.g. cabinets or dust covers

Definitions

  • the video wall system therefore operates such that the image or video content is obtained in a much larger size than a single display device can display, by way of dividing the main image into a plurality of image portions for display on separate image display devices.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • General Health & Medical Sciences (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Biomedical Technology (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Controls And Circuits For Display Device (AREA)

Abstract

Described is a system and method for performing calibration of a video wall system. The video wall system has a multitude of image display devices in the form of a matrix. The image display devices of the video wall system comprise control units and they are selectively activated to be responsive to control signals by a remote control in the manner that only image display devices being activated allow simultaneous change of operational settings in response to received remote control signals.

Description

SYSTEM AND METHOD FOR ADJUSTING SETTINGS OF A VIDEO WALL DISPLAY SYSTEM
The present invention relates to a system and method for performing audio and/or video calibration of a video wall system.
Image display devices present images on screens thereof and combination of multiple display devices in order to form a large screen display environment called a video wall system is one of the functions achievable through combination and simultaneous operation of a plurality of individual image display devices. The term video wall generally refers to the generation of a combined image from the same video input by means of a plurality of image display devices as a single video wall image. The video wall may typically be arranged in the form of 1x4, 2x2, 3x3, 4x4 or much larger screen formats.
Video walls are basically preferred due to their capability to generate a very large screen whose tile layout can be customized by which a greater screen area and greater pixel density per unit cost can be achieved, which is advantageous due to manufacturing costs of single screens allowing an unusual resolution when combined.
Video walls are conventionally used in large public venues such as stadiums. Video walls are driven from multi-monitor video cards and generally require video processors capable to manage large video walls. Software based video wall controllers use PCs and networking equipment.
Among others, one of the prior art disclosures in the technical field of the present invention may be referred to as EP2328073, which discloses a video wall system which includes a plurality of display devices, each of the display devices including: a pair of input and output connectors comprising an input connector connected to a first neighboring display device among the plurality of display devices to input an image signal from the first neighboring display device, and an output connector connected to a second neighboring display device to output the input video signal; a signal processor which processes the input video signal; and a display which displays an image based on the processed video signal.
The present invention provides a system and method for simultaneously programming and adjusting settings of at least one image display device in a video wall system in which a plurality of image display devices are operated to create a combined screen area.
The present invention therefore provides a video wall system, a plurality of image display devices of which is simultaneously configurable in an efficient and practical manner as provided by the characterizing features defined in Claim 1.
Primary object of the present invention is to provide a video wall system, a plurality of image display devices of which is simultaneously configurable in an efficient and practical manner.
The invention proposes a video wall system having a plurality of image display devices, each one being individually set to zoom or enlarge a certain screen portion of the overall image or video content. Each image display device identifies and generates a particular dedicated screen portion based on its locational definition in a matrix-like web, such information containing the dimensions of the formed matrix-like web in which the location of each image display device is indexed to be identified by its row and column on two axes, initial positons of a screen portion on two axes to be cropped by each respective image display device of the video wall system and the unit lengths (X, Y) on the horizontal (x) and vertical axis (y) of the video wall system.
The invention advantageously allows programming of at least one of the image display devices simultaneously by end-users, thereby providing greater flexibility. The invention allows simultaneous programming of a plurality of devices remotely, through selectively activating control of respective screens. This provides easy programming and practical setup for large video wall systems having a large number of image display devices.
Accompanying drawings are given solely for the purpose of exemplifying a video wall system whose advantages over prior art were outlined above and will be explained in brief hereinafter.
The drawings are not meant to delimit the scope of protection as identified in the claims nor should they be referred to alone in an effort to interpret the scope identified in said claims without recourse to the technical disclosure in the description of the present invention.
Fig. 1 demonstrates a general flow diagram according to an exemplary method of control of the video wall system according to an embodiment of the present invention.
Fig. 2 demonstrates a general flow diagram according to an alternative method of control of the video wall system according to an embodiment of the present invention.
The present invention proposes a video wall system with a multitude of image display devices. The video wall system’s operation is effectuated such that each image display device is individually set to identify its particular enlarged screen portion of the overall screen as delineated below.
The video wall system of the invention is created by means of a plurality of image display devices, the latter together forming a combined very large screen in the form of a generally rectangular web. Each of the combined image display devices then generates and displays a certain dedicated portion of the video content so that the video content can be displayed on a combined large screen. Each of said image display devices comprises a control unit for identification and generation of the dedicated portion.
The video wall system therefore operates such that the image or video content is obtained in a much larger size than a single display device can display, by way of dividing the main image into a plurality of image portions for display on separate image display devices.
The image display devices may be connected to a video transmission line through respective input connectors. The connectors may typically be in the form of high definition multimedia interface (HDMI) or DVI-D type connectors. The video distribution is possible through a central video distributor system and each image to be displayed on a single image display device is distributed by said central video distributor system. Another method relies on serial connections between separate image display devices through which transfer of the whole video content to an adjacent image display device is provided.
The source images are transferred to a plurality of image display devices while two neighboring image display devices can be placed vertically, horizontally or otherwise with respect to each other so that a generally rectangular shape large screen area is obtainable. Each image display device within the video wall system is configured to display a certain dedicated portion of the image or video content and accordingly divides the image or video content so as to generate a specially adapted portion thereof corresponding to the specific screen area of the overall combined screen size depending on the number of image display devices on the vertical and horizontal axes.
The location information of each image display device is communicated to the respective control unit of the devices through the settings menu thereof by way of indicating the size of the formed web as well as the specific position of a respective image display device in the web of the video wall system, upon which each image display device can identify its particular video screen portion to be displayed. The dimension of the video wall is defined as the number of image display devices on horizontal and vertical axes. The location of each image display device is configured at the menu as a specific position on the horizontal and vertical axes of the video wall system. In a more specific manner, in a video wall system having six image display devices on the horizontal axis and five image display devices on the vertical axis, each image display device and the location thereof is indexed within the matrix and is identified by its row and column such as (1, 2), (5, 6) or the like.
Settings adjustment method of the video wall system with a certain number of image display devices involves activation and deactivation of certain devices in response to control signal by a remote control. This is particularly advantageous when only a certain number of devices require adjustment of any operational setting such as color or contrast settings etc. For instance, if only a number of particular image display devices are needed to be responsive during adjustment of color settings, this is achieved by way of activating only desired devices by way of providing touch input to the screens thereof. According to this embodiment, only the devices provided with touch input will be activated and remain so to allow change of any settings and any other devices will not be responsive to remote control signals. Therefore need for turning on and off specific devices to adjust settings only in certain devices and avoid changes in others is practically eliminated.
In the event that the image display devices in the video wall system are not touch screens, a centrally run control software communicates with the control unit of each image display device in the video wall system and each device is assigned a unique passcode, which can be entered through a virtual number pad through said control software or a control panel having a number pad can be used to input passcodes to be read by said control software. In this manner, a desired number of devices with specific locations will be ready for
In a nutshell, the present invention proposes a video wall system having a multitude of image display devices in the form of a matrix-like web with each pair of image display devices being at least partially neighboring each other on a first axis as well as on a second axis different than said first axis, each image display device of the video wall system comprising a control unit.
In one embodiment of the present invention, said image display devices of the video wall system are selectively activated in turned on condition to be responsive to control signals by a remote control in the manner that only image display devices being activated allow simultaneous change of operational settings in response to received remote control signals and any other devices not activated are not responsive to received remote control signals.
In a further embodiment of the present invention, said image display devices are selectively activated by touch input.
In a further embodiment of the present invention, the video wall system comprises a main control unit effectuating selective activation of at least one image display device of the video wall system.
In a further embodiment of the present invention, the main control unit is remotely controlled by a remote control.
In a further embodiment of the present invention, said remote control has a number pad for communicating device-specific activation passcodes to said main control unit of the video wall system.
In a further embodiment of the present invention, selective activation of at least one image display device of the video wall system is effectuated navigating on a virtual number pad using a remote control.
In a further embodiment of the present invention, the virtual number pad is displayed on at least one image display device.
In a further embodiment of the present invention, each image display device’s control unit effectuates identification and generation of an enlarged dedicated particular screen portion of a received overall image or video content.
In a further embodiment of the present invention, said first axis is perpendicular to said second axis.
In a further embodiment of the present invention, each image display device comprises input and output connectors by which a serial video transmission line is created in the manner that each image display device transfers the image or video signal to a neighboring image display device in the video wall system by means of respective input and output connectors through a unidirectional serial video transmission line established between a first and a final image display device.
The invention advantageously allows programming of each image display by end-users in a simultaneous manner eliminating the need for individually turning certain devices off. It is also to be noted that higher position devices in the video wall system may not be easily reachable in an effort to individually turn on and off. The invention allows simultaneous and selective programming of a plurality of devices remotely by means of a conventional remote control communicating with the respective control units of each image display device.

Claims (11)

  1. A video wall system having a multitude of image display devices in the form of a matrix-like web with each pair of image display devices being at least partially neighboring each other on a first axis as well as on a second axis different than said first axis, each image display device of the video wall system comprising a control unit characterized in that;
    said image display devices of the video wall system are selectively activated in turned on condition to be responsive to control signals by a remote control in the manner that only image display devices being activated allow simultaneous change of operational settings in response to received remote control signals and any other devices not activated are not responsive to received remote control signals.
  2. A video wall system as in Claim 1, characterized in that said image display devices are selectively activated by touch input.
  3. A video wall system as in Claim 1, characterized in that the video wall system comprises a main control unit effectuating selective activation of at least one image display device of the video wall system.
  4. A video wall system as in Claim 3, characterized in that the main control unit is remotely controlled by a remote control.
  5. A video wall system as in Claim 3, characterized in that said remote control has a number pad for communicating device-specific activation passcodes to said main control unit of the video wall system.
  6. A video wall system as in Claim 4, characterized in that selective activation of at least one image display device of the video wall system is effectuated navigating on a virtual number pad using said remote control.
  7. A video wall system as in Claim 6, characterized in that the virtual number pad is displayed on at least one image display device.
  8. A video wall system as in Claim 1, characterized in that each image display device’s control unit effectuates identification and generation of an enlarged dedicated particular screen portion of a received overall image or video content.
  9. A video wall system as in Claim 1, characterized in that said first axis is perpendicular to said second axis.
  10. An image display device used in the video wall system as in any preceding Claim.
  11. A video wall system as in Claim 1, characterized in that each image display device comprises input and output connectors by which a serial video transmission line is created in the manner that each image display device transfers the image or video signal to a neighboring image display device in the video wall system by means of respective input and output connectors through a unidirectional serial video transmission line established between a first and a final image display device.
PCT/EP2017/061061 2017-05-09 2017-05-09 System and method for adjusting settings of a video wall display system WO2018206088A1 (en)

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PCT/EP2017/061061 WO2018206088A1 (en) 2017-05-09 2017-05-09 System and method for adjusting settings of a video wall display system
TR2018/01628A TR201801628A2 (en) 2017-05-09 2018-02-06 SYSTEM AND METHOD FOR ADJUSTING A VIDEO WALL IMAGING SYSTEM

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PCT/EP2017/061061 WO2018206088A1 (en) 2017-05-09 2017-05-09 System and method for adjusting settings of a video wall display system

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190244561A1 (en) * 2016-11-17 2019-08-08 Xi'an Novastar Tech Co., Ltd. Pixel-by-pixel calibration method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020159035A1 (en) * 2000-03-27 2002-10-31 Takaaki Koyama Projection Display System, Projector and Menu Image Display Method for Same
US20060215062A1 (en) * 2005-03-14 2006-09-28 Pioneer Corporation Multi-display apparatus, screen adjustment method of the same and screen adjustment program product
US20070057914A1 (en) * 2005-09-09 2007-03-15 Lg Electronics Inc. Apparatus and method for controlling video display device, video display device and multivision system
EP2328073A2 (en) 2009-11-25 2011-06-01 Samsung Electronics Co., Ltd. Video wall display system
US20130088642A1 (en) * 2011-10-10 2013-04-11 Delta Electronics, Inc. Voice controlling system for adjusting a video wall

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020159035A1 (en) * 2000-03-27 2002-10-31 Takaaki Koyama Projection Display System, Projector and Menu Image Display Method for Same
US20060215062A1 (en) * 2005-03-14 2006-09-28 Pioneer Corporation Multi-display apparatus, screen adjustment method of the same and screen adjustment program product
US20070057914A1 (en) * 2005-09-09 2007-03-15 Lg Electronics Inc. Apparatus and method for controlling video display device, video display device and multivision system
EP2328073A2 (en) 2009-11-25 2011-06-01 Samsung Electronics Co., Ltd. Video wall display system
US20130088642A1 (en) * 2011-10-10 2013-04-11 Delta Electronics, Inc. Voice controlling system for adjusting a video wall

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190244561A1 (en) * 2016-11-17 2019-08-08 Xi'an Novastar Tech Co., Ltd. Pixel-by-pixel calibration method
US10726776B2 (en) * 2016-11-17 2020-07-28 Xi'an Novastar Tech Co., Ltd. Pixel-by-pixel calibration method

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