Abstract: An image retrieval system with high retrieval accuracy is provided. The image retrieval system includes a database and a processing portion. The database has a function of storing a plurality of pieces of database image data, and a database tag is linked to each of the plurality of pieces of database image data. The processing portion has a function of obtaining database image feature value data representing a feature value of the database image data for each piece of the database image data. The processing portion has a function of obtaining query image feature value data representing a feature value of the query image data. The processing portion has a function of calculating first similarity of the database image data to the query image data for each piece of the database image data. The processing portion has a function of obtaining a query tag linked to the query image data using some of the database tags.

Abstract: Provided is an electronic device including an input means using a touch panel with which incorrect operations is reduced. When people whose arms, hands, or fingers involuntarily shake because of cerebral palsy or the like use an input system including a touch panel, incorrect touch might occur in input operation. To prevent this, a touch input system in which a cover for preventing incorrect touch is provided over a touch panel to reduce incorrect operations is provided. However, since there is a region that is hard to touch using the cover, electronic devices including such touch panels are not sufficiently widely used. Thus, novel touch panels are provided outside a display region where the cover is provided. The touch panels have a function of selecting first and second regions. The first and second regions intersect with each other to provide a third region. A display object displayed in a region overlapping with the third region is configured to be extracted and executed.

Abstract: A novel information processing device that is highly convenient is provided. The information processing device includes a selection circuit having a function of supplying image data to a reflective display element, a light-emitting element, or both of them on the basis of input position coordinate data, sensing data about the illuminance of the usage environment, and the image data. An icon with high selection frequency is displayed by both the reflective display element and the light-emitting element on the basis of icon coordinate data and the input position coordinate data, so that the icon can be displayed brightly with improved visibility.

Abstract: A flexible display device with high viewability is provided. The display device includes a first substrate, a second substrate, a first element layer, and a second element layer. The first element layer is positioned between the first substrate and the second substrate. The second element layer is positioned between the first substrate and the second substrate. The first element layer and the second element layer overlap with each other in a region. The first substrate and the second substrate have flexibility. The first element layer includes a display element and a first circuit. The display element is electrically connected to the first circuit. The second element layer includes a sensor element. The sensor element has a function of sensing distortion.

Abstract: Provided is an input unit and input method for an information terminal for easy input work and avoiding an operating error. Included are a support, an input unit including a laser device on the support, an information terminal including a sensor in a display portion, and a switch connected with or without a wire to at least one of the laser device and the information terminal. A desired region of the display portion is irradiated with laser light output from the input unit. Information is input to the region by operation of the switch in the state where the region is irradiated with laser light.

Abstract: A flexible display device with high viewability is provided. The display device includes a first substrate, a second substrate, a first element layer, and a second element layer. The first element layer is positioned between the first substrate and the second substrate. The second element layer is positioned between the first substrate and the second substrate. The first element layer and the second element layer overlap with each other in a region. The first substrate and the second substrate have flexibility. The first element layer includes a display element and a first circuit. The display element is electrically connected to the first circuit. The second element layer includes a sensor element. The sensor element has a function of sensing distortion.

Abstract: Provided is an electronic device including an input means using a touch panel with which incorrect operations is reduced. When people whose arms, hands, or fingers involuntarily shake because of cerebral palsy or the like use an input system including a touch panel, incorrect touch might occur in input operation. To prevent this, a touch input system in which a cover for preventing incorrect touch is provided over a touch panel to reduce incorrect operations is provided. However, since there is a region that is hard to touch using the cover, electronic devices including such touch panels are not sufficiently widely used. Thus, novel touch panels are provided outside a display region where the cover is provided. The touch panels have a function of selecting first and second regions. The first and second regions intersect with each other to provide a third region. A display object displayed in a region overlapping with the third region is configured to be extracted and executed.

Abstract: A touch panel input system in which the operability of a touch panel is improved is provided. In an input system using a touch panel, a person whose fingertips are trembled or a person whose eyesight is poor touches something mistakenly, which is regarded as misoperation, in input operation in some cases. The touch panel input system uses a touch sensor module including a touch panel and a control portion. The touch panel includes a first touch sensing region and a second touch sensing region. The control portion includes a step of calculating areas where a touch is sensed in the first touch sensing region and the second touch sensing region. The control portion includes a step of determining one of the first and second touch sensing regions that has a larger integrated area is a touched position.

Abstract: A flexible display device with high viewability is provided. The display device includes a first substrate, a second substrate, a first element layer, and a second element layer. The first element layer is positioned between the first substrate and the second substrate. The second element layer is positioned between the first substrate and the second substrate. The first element layer and the second element layer overlap with each other in a region. The first substrate and the second substrate have flexibility. The first element layer includes a display element and a first circuit. The display element is electrically connected to the first circuit. The second element layer includes a sensor element. The sensor element has a function of sensing distortion.

Abstract: A novel information processing device that is highly convenient is provided. The information processing device includes a selection circuit having a function of supplying image data to a reflective display element, a light-emitting element, or both of them on the basis of input position coordinate data, sensing data about the illuminance of the usage environment, and the image data. An icon with high selection frequency is displayed by both the reflective display element and the light-emitting element on the basis of icon coordinate data and the input position coordinate data, so that the icon can be displayed brightly with improved visibility.

Abstract: A flexible display device with high viewability is provided. The display device includes a first substrate, a second substrate, a first element layer, and a second element layer. The first element layer is positioned between the first substrate and the second substrate. The second element layer is positioned between the first substrate and the second substrate. The first element layer and the second element layer overlap with each other in a region. The first substrate and the second substrate have flexibility. The first element layer includes a display element and a first circuit. The display element is electrically connected to the first circuit. The second element layer includes a sensor element. The sensor element has a function of sensing distortion.