Thesis describes worldwide operating systems for smart phones with focus on third party application development possibility. Also describes touch control and writing using the virtual keyboard of smartphones. The second part describes the analysis and projection of virtual keyboard with emphasis on ergonomic use for handicapped person. One solution is selected and programmed for operating system Android. Thesis contains complete procedure of application developing, starting with first request, through designing, programming and ending with debugging, testing and release application on Android Market.

This work deals with design of PC remote control, which is able to control computer with operating system Windows and Linux using Wifi connection. There was also created necessary support software for both operating systems. Communication was secured by ciphering algorithm.

Spatial orientation of pigeons on a small scale was intensivelly studied in experiments using various types of arenas or mazes. In these experiments pigeons usually searched for food hidden in the goal area and they based their orientation on available landmarks. The development of new technologies allowed to test spatial cognition of pigeons also in virtual tasks, based exclusively on a schematic representation of an arena or maze on a touch screen. In experiments of this type pigeon marks the goal by pecking and it is rewarded by food from a feeder, located near the monitor. Study presented in this diploma thesis was based on combination of both types of spatial tasks. The information crucial for locating the goal was presented to pigeons on a computer screen in form of graphic stimuli, whereas the goal itself was formed by one of the 4 holes in corners of a transparent rectangular desk, standing in front of the monitor. Experiment with similar design was not yet published in the study of spatial cognition of pigeons. Two types of abstract graphic stimuli were tested. The first stimuli provided a spatial information about the location of a goal and had a form of small rectangular frame with a white spot in one of its corners. The frame represented the space of the response desk and the white spot...

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This essay is a product of our examination work on candidate level in Interaction Design. The aim in this project was to design a digital wallet integrated into a cellular phone and make it as an electronic payment tool. In our project the goal has been to create a digital wallet not just for payment, but also develop it into a complete digital wallet, replacing visa, membership card, student cards, id card and receipt. Our ambition is to take care of current qualities of today's wallet and improve where it is possible so that can be replaceable with the digital wallet.

The purpose of this thesis is to investigate how Digital Signage systems such as public info kiosks can be designed to better fulfill its main use; to enlighten, encourage and influence the public with information. The challenges presented from earlier studies shows that the public interests and goals, together with proper and relevant content displayed in info kiosks have impact on the attention the public have towards public displays. Qualitative methods such as interviews, usability testing and observations were conducted to further examine how a public info kiosk can be designed to draw attention and grow interest amongst students at K3, Malmo University. Usability testing were used on the digital prototypes that were developed to ensure that the gestural user interface meet the requirements of a proper interaction from the users. Important insights were made concerning; the attention and interest to relevant content, the aspects of the gestural user interface along with the placement of the info kiosk in terms of context. These key factors need to be properly investigated and developed to ensure a better deployment of a public info kiosk. It is suggested that using the principles of interaction design by doing research and studies of public interest and needs, and optimizing it by taking the specific context of place and time in account when a designing content. The results from this thesis suggests that an installation of a public info kiosk will successfully earn the attention and interest from the public if the content is relevant and interesting to the specific public. It is also important that the systems perform well in terms of software and hardware to allow a fluid and intuitive interaction with the gestural user interface.

Nowadays, the establishment of new touch screen technology has changed significantly the way we navigate on the Internet. The requirement to design websites that adapt to various artifacts such as touch screen computers are increasingly a need to consider. The purpose of this study is to discover - What are the specific usability requirements should be addressed in designing of websites for touch screen computers? - In order to examine the essay’s question, it presents a study where five people visiting three different websites on the touch screen computer Ipad. The study was conducted using a participant and structured interview observation in form of a think-aloud method. With the help of video equipment, information was gathered. Respondent's discussions are presented and the study's results are analyzed using a qualitative procedure. The research has contributed mainly to individualize the possible usability problems that concerned interaction with websites on the touch screen computer Ipad. Based on the analysis and the qualitative study it has come usability requirements related to aspects of the website's navigation, interaction and feedback. / I dagens samhälle har etableringen av ny pekskärmsteknik betydligt ändrat vårt sätt att navigera på internet. Kravet på att utforma webbplatser som skall anpassas till olika artefakter så som pekskärmsdatorer blir allt mer ett behov att ta hänsyn till. Syftet med denna studie är att upptäcka ”Vilka särskilda användbarhetskrav bör ställas vid utformning av webbplatser för pekskärmsdatorer?” För att undersöka uppsatsens frågeställning presenteras en studie där fem personer besöker tre webbplatser på pekskärmsdatorn Ipad. Studien genomfördes med hjälp av en deltagande och strukturerad observationsintervju i form av en tänk-högt-metod. Med hjälp av videoutrustning samlades informationen in. Respondenternas samtal presenterades och studiens resultat analyserades med en kvalitativ procedur. Forskningen bidrog framförallt med information om att individualisera de möjliga användbarhetsproblem som finns vid interaktion med webbplatser på pekskärmsdatorn Ipad. Utifrån analysen och den kvalitativa underökningen har det kommit fram användbarhetskrav som rör aspekter inom webbplatsens navigering, interaktion och återkoppling.

Interactive handheld electronic displays use hydrogenated amorphous silicon (a-Si:H) thin film transistor (TFT) as a backplane and a Touch Screen Panel (TSP) on top as an input device. The low mobility and instability of a-Si:H TFT threshold voltage are major two issues for driving constant current as required for Active Matrix Organic Light Emitting Ddiode (AMOLED) displays. Low mobility is compensated by increasing transistor width or resorting to more expensive material TFTs. On the other hand, the ever increasing threshold voltage shift degrades the drain current under electrical operation causing OLED display to dim. Mutual capacitive TSP, the current cell phone standard, requires two layers of metals and a dielectric to be put in front of the display, further dimming the device and adding to visual noise due to sun reflection, not to mention increased integration cost and decreased yield. This thesis focuses on the aforementioned technological hurdles of a handheld electronic display by proposing a dual-gate TFT used as an OLED current driving TFT and a novel phase response readout scheme that can be applied to a one metal track TSP. Our dual-gate TFT has shown on average 20% increase in drive current over a single gate TFT fabricated in the same batch, attributed to the aid of a top channel to the convention bottom channel TFT. Furthermore the dual gate TFT shows three times the Poole-Frenkel current than the single gate TFT attributed to the increase in gate to drain overlap. The dual-gate TFT shows a 50% improvement in threshold voltage shift over a single gate TFT at room temperature, but only ~8% improvement under 75ºC. This is an important observation as it shows an accelerated threshold voltage shift in the dual-gate. This difference in the rate of threshold voltage change under varying temperature is attributed to the difference in interface states, supporting Libsch and Kanicki’s multi-level temperature dependant dielectric trapping model. The phase response TSP readout scheme requires IC only on one side of the display. Cadence Spectre simulation results showed that both touch occurrence and touch position can be obtained using only one metal layer.

Interactive handheld electronic displays use hydrogenated amorphous silicon (a-Si:H) thin film transistor (TFT) as a backplane and a Touch Screen Panel (TSP) on top as an input device. The low mobility and instability of a-Si:H TFT threshold voltage are major two issues for driving constant current as required for Active Matrix Organic Light Emitting Ddiode (AMOLED) displays. Low mobility is compensated by increasing transistor width or resorting to more expensive material TFTs. On the other hand, the ever increasing threshold voltage shift degrades the drain current under electrical operation causing OLED display to dim. Mutual capacitive TSP, the current cell phone standard, requires two layers of metals and a dielectric to be put in front of the display, further dimming the device and adding to visual noise due to sun reflection, not to mention increased integration cost and decreased yield. This thesis focuses on the aforementioned technological hurdles of a handheld electronic display by proposing a dual-gate TFT used as an OLED current driving TFT and a novel phase response readout scheme that can be applied to a one metal track TSP. Our dual-gate TFT has shown on average 20% increase in drive current over a single gate TFT fabricated in the same batch, attributed to the aid of a top channel to the convention bottom channel TFT. Furthermore the dual gate TFT shows three times the Poole-Frenkel current than the single gate TFT attributed to the increase in gate to drain overlap. The dual-gate TFT shows a 50% improvement in threshold voltage shift over a single gate TFT at room temperature, but only ~8% improvement under 75ºC. This is an important observation as it shows an accelerated threshold voltage shift in the dual-gate. This difference in the rate of threshold voltage change under varying temperature is attributed to the difference in interface states, supporting Libsch and Kanicki’s multi-level temperature dependant dielectric trapping model. The phase response TSP readout scheme requires IC only on one side of the display. Cadence Spectre simulation results showed that both touch occurrence and touch position can be obtained using only one metal layer.

Fysiklärare möter ofta den svåra uppgiften att representera abstrakta, väldefinierade egenskaper hos den fysiska världen (så som krafter eller energier) för studenter som går bortom ekvationer, grafer eller diagram. I denna studie tittar jag två fall av universitetsstudenter som löser en fysikalisk uppgift, användandes det digitala programmet Algodoo på en stor pekskärm för att undersöka hur studenter naturligt använder sig av sådan teknologi för att återskapa dessa representationer själva. Jag finner att när studenter skapar scener i Algodoo prioriterar de att behålla en viss mått av likhet från den fysiska världen, vilket går bortom den formella behandlingen av uppgifter som studenter kan ha fått lära sig i fysikundervisningen. Vidare, när studenterna använder sig av fysikaliska ekvationer vid lösandet av problemet, verkar de använda Algodoo som ett facit för att se huruvida deras numeriska lösning, uträknad på en klassisk whiteboard, stämmer. På detta sätt - vilket har föreslagits i tidigare forskning - ser jag hur Algodoo, och liknande digitala lärmiljöer, fungerar som en bro mellan studenternas konceptuella förståelse av den fysiska världen, och den mer formella, matematikbaserade beskrivningen vilket används inomfysiken. / Physics teachers are often faced with the difficult task of representing abstract, formally-defined properties of the physical world (such as forces or energy) for students in a way which goes beyond equations, graphs, and diagrams. In this study, I investigate two cases of university students solving a physics problem while using the digital software, Algodoo, on a large touch screen to examine how students might naturally leverage such technology to create such representations of their own. I find that as student draw scenes in Algodoo, they tend to prioritze a degree of resemblance to the physical world which goes beyond the formal treatment of problems they might have been taught in physics classes. Additionally, as the students recruit physics equation into their solution of the problem, they appear to use Algodoo as a conceptual check for the numerical answer they calculate on the normal whiteboard. In this way - and as has been hypothesized in previous research - I see the potential for Algodoo and similar digital learning environments to act as a bridge between students’ conceptual intuitions of the physical world and the more formal, mathematically-based descriptions used in physics.