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(12) United States Patent (10) Patent No.: US 8,941,691 B2 Baron (45) Date of Patent: Jan

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(12) United States Patent (10) Patent No.: US 8,941,691 B2 Baron (45) Date of Patent: Jan USOO8941691 B2 (12) United States Patent (10) Patent No.: US 8,941,691 B2 Baron (45) Date of Patent: Jan. 27, 2015 (54) MULTI-LAYERED DISPLAYS (56) References Cited (75) Inventor: James Baron, Auckland (NZ) U.S. PATENT DOCUMENTS 5,022,085 A 6, 1991 Cok (73) Assignee: Pure Depth Limited, Auckland (NZ) 5,745,197 A * 4/1998 Leung et al. .................... 349.77 6,195,104 B1* 2/2001 Lyons ............ ... 345/473 (*) Notice: Subject to any disclaimer, the term of this 6,369,830 B1 * 4/2002 Brunner et al. ... 345,629 6,507,413 B1* 1/2003 Mueller et al. ..... ... 358/19 patent is extended or adjusted under 35 6,906,762 B1* 6/2005 Witehira et al. ................ 349.73 U.S.C. 154(b) by 681 days. 7,193,631 B2 3/2007 Mueller et al. 7,746,356 B2 * 6/2010 Meinders ...................... 345,629 (21) Appl. No.: 13/061,130 8.416,149 B2 * 4/2013 Evanicky ... ... 345.4 8,432,411 B2 * 4/2013 Bell et al. ... ... 345,589 8.436,873 B2 * 5/2013 Gao ........ ... 345,634 (22) PCT Filed: Aug. 26, 2009 2002/0126396 A1* 9/2002 Dolgoff ......... ... 359,743 2003/0080923 A1* 5/2003 Suyama et al. ................... 345/6 (86). PCT No.: PCT/B2O09/OO6645 2003/O122844 A1* 7, 2003 Mueller et al. ... 345,589 2006/019 1177 A1* 8/2006 Engel .............................. 40,453 S371 (c)(1), 2009/0305782 A1* 12/2009 Oberg et al. .................... 463,31 (2), (4) Date: Jul. 29, 2011 2010/0277439 A1* 11/2010 Charlier et al. ............... 345,176 (87) PCT Pub. No.: WO2010/023537 FOREIGN PATENT DOCUMENTS WO 9944095 9, 1999 PCT Pub. Date: Mar. 4, 2010 WO 2007040413 A1 4/2007 (65) Prior Publication Data * cited by examiner US 2011 FO310121 A1 Dec. 22, 2011 Primary Examiner — M. Good Johnson (51) Int. Cl. (57) ABSTRACT G09G 5/00 (2006.01) A method, system, computer software and display for gener G09G 3/00 (2006.01) ating and displaying a target image (14) on a multi-layered HO4N 13/04 (2006.01) display (1). The target image (14) includes a graphical object GO2F 1/1347 (2006.01) (9) displayed on a first display layer (2) of the multi-layered (52) U.S. Cl. display (1) and contextual elements (10) displayed on a sec CPC ............ G09G5/00 (2013.01); G09G 2300/023 ond display layer (3). The graphical object (9) is provided (2013.01); G09G 3/003 (2013.01); H04N with a peripheral boundary region (12) composed of contex 13/0495 (2013.01); G02F1/1347 (2013.01) tual elements (10) displayed on the second display layer (3). USPC ................................ 345/634; 34.5/636; 34.5/6 A projection of the peripheral boundary region (12) on the (58) Field of Classification Search first display layer (2) demarcates a silhouette (11) on the USPC .................................................. 345/629, 634 second display layer (3). See application file for complete search history. 21 Claims, 7 Drawing Sheets U.S. Patent Jan. 27, 2015 Sheet 1 of 7 US 8,941,691 B2 Figure 1 1 3 2 4 Fig 1 a 3 Fig 1b U.S. Patent Jan. 27, 2015 Sheet 2 of 7 US 8,941,691 B2 Figure 2 100 Graphics Processor (Optional) Communication Interface 106 U.S. Patent Jan. 27, 2015 Sheet 3 of 7 US 8,941,691 B2 Figure 3 13 10 U.S. Patent Jan. 27, 2015 Sheet 4 of 7 US 8,941,691 B2 Fi ure 6 U.S. Patent Jan. 27, 2015 Sheet 5 Of 7 US 8,941,691 B2 U.S. Patent Jan. 27, 2015 Sheet 6 of 7 US 8,941,691 B2 Figure 9 200 N. 201 Extract graphical object 202 and contextual elements Generate silhouette 2O3 Generate boundary 204 region Generate image data 2O5 (7,8) Display target image 2O6 U.S. Patent Jan. 27, 2015 Sheet 7 of 7 US 8,941,691 B2 Figure 10 210 Generate silhouette 203 Generate boundary 204 region Generate image data 205 (7,8) Display target image 2O6 US 8,941,691 B2 1. 2 MULTI-LAYERED DISPLAYS ally scan each element, scrutinising for the presence of the said properties. Exactly what properties lend themselves to RELATED APPLICATIONS preattentive processing has in itself been the Subject of Sub stantial research. Colour, shape, three-dimensional visual The present application is a National Stage Application clues, orientation, movement and depth have all been inves filed under 35 U.S.C. S371 of International Patent Applica tigated to discern the germane visual features that trigger tion Number PCT/IB2009/006645, filed Aug. 26, 2009, effective preattentive processing. which claims the benefit of New Zealand Patent Number Researchers have conducted experiments using target and 570812, filed Aug. 26, 2008. These applications are incorpo boundary detection in an attempt to classify preattentive fea rated herein by reference in their entirety and for all purposes. 10 tures. Preattentive target detection was tested by determining whether a target element was present or absent within a field FIELD OF THE INVENTION of background distractor elements. Boundary detection involves attempting to detect the boundary formed by a group The invention relates to improvements in and relating to of target elements with a unique visual feature set within electronic visual displays and in particular to improved meth 15 distractors. It may be readily visualised for example that ared ods, systems and computer Software for generating images on circle would be immediately discernible set amongst a num multi-focal plane displayS. ber of blue circles. Equally, a circle would be readily detectable if set amongst BACKGROUND a number of square shaped distractors. In order to test for preattentiveness, the number of distractors as seen is varied Electronic display technology for displaying graphical and if the search time required to identify the targets remains images and/or text has evolved dramatically to meet the per constant, irrespective of the number of distractors, the search vasive user demand for more realistic and interactive dis is said to be preattentive. Similar search time limitations are plays. A wide range of display technologies with differing used to classify boundary detection searches as preattentive. capabilities are now available including: 25 A widespread threshold time used to classify preattentive Cathode Ray Tube (CRT) ness is 200-250 milliseconds as this only allows the user Bistable display opportunity for a single look at a scene. This timeframe is Electronic paper insufficient for a human to consciously decide to look at a Nixie tube displays different portion of the scene. Search tasks such as those Vector display 30 stated above maybe accomplished in less than 200 millisec Flat panel display onds, thus Suggesting that the information in the display is Vacuum fluorescent display (VF) being processed in parallel unattendedly or pre-attentively. Light-emitting diode (LED) displays However, if the target is composed of a conjunction of Electroluminescent Displays (ELD) unique features, i. e. a conjoin search, then research shows Plasma display panels (PDP) 35 that these may not be detected preattentively. Using the above Liquid crystal display (LCD) examples, ifa target is included for example, of a red circle set High-Performance Addressing (HPA) within distractors including blue circles and red squares, it is Thin-film transistor displays (TFT) not possible to detect the red circle preattentively as all the Organic light-emitting diode displays (OLED) distractors include one of the two unique features of the Surface-conduction electron-emitter display (SED) (ex 40 target. perimental) Whilst the above example is based on a relatively simple Laser TV (forthcoming) visual scene, Enns and Rensink 1990 identified that targets Carbon nanotubes (experimental) given the appearance of being three dimensional objects can Nanocrystal displays (experimental), using quantum dots also be detected preattentively. Thus, for example a target to make vibrant, flexible screens. 45 represented by a perspective view of a cube shaded to indicate However, most display technologies are generally only illumination from above would be preattentively detectable capable of displaying two-dimensional images on a single amongst a plurality of distractor cubes shaded to imply illu screen. The ability to form images at different depths within mination from a different direction. This illustrates an impor a display, whether real or perceived, has been the subject of tant principle in that the relatively complex, high-level con significant and ongoing research and development in the 50 cept of perceived three dimensionality may be processed quest to provide display technology capable of replicating or preattentively by the Sub-conscious mind. augmenting the depth effects conferred by normal human In comparison, if the constituent elements of the above sight. described cubes are re-orientated to remove the apparent The manner in which human beings process visual infor three dimensionality, Subjects cannot preattentively detect mation has been the Subject of extensive and prolonged 55 targets which have been inverted for example. Additional research in an attempt to understand this complex process. experimentation by Brown et al 1992 confirm that it is the This research has included the effects of depth or apparent three dimensional orientation characteristic which is preat depth provided by volumetric, three-dimensional or multi tentively detected. Nakaymyama and Silverman 1986 focal plane displays. showed that motion and depth were preattentive characteris The term “preattentive processing has been coined to 60 tics and that furthermore, stereoscopic depth could be used to denote the act of the Subconscious mind in analysing and overcome the effects of conjoin. This reinforced the work processing visual information which has not become the done by Enns Rensink in Suggesting that high-level informa focus of the viewers conscious awareness. tion is conceptually being processed by the low-level visual When viewing a large number of visual elements, certain system of the user.
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