The position detection method includes projecting a detecting image on a projection surface from a projection section, taking, by an imaging section, an image of the projection surface in a first direction from the projection section in a situation in which the detecting image is projected on the projection surface and a pointing body touches the projection surface to thereby generate imaging data, and detecting a position of a touch portion by the pointing body on the projection surface based on the imaging data, wherein the detecting image represents a plurality of objects located in a matrix and the position of the touch portion is detected based on a positional relationship in the predetermined direction corresponding to a first direction of the plurality of objects represented by the imaging data.

A display device provided with an image capturing function is provided. A display device with both high viewing angle characteristics and high image capturing performance is provided. The display device includes a light-emitting and light-receiving element and a color filter. The light-emitting and light-receiving element includes a light-emitting and light-receiving region having a function of emitting light of the first color and a function of receiving light of the second color. The color filter is positioned over the light-emitting and light-receiving element and has a function of transmitting the light of the first color and a function of blocking the light of the second color. The color filter includes an opening portion. The light-emitting and light-receiving region includes a portion positioned in the inside of the opening portion in the plan view.

A communication management system manages a session in which a plurality of terminal apparatuses shares a stroke image. The communication management system includes circuitry configured to: manage stroke information including a plurality of pieces of stroke data representing the stroke image; receive, from a first terminal apparatus, group operation information for designating one or more pieces of stroke data, which are operation targets, from among the plurality of pieces of stroke data; and restrict, based on the group operation information, an operation regarding the one or more pieces of stroke data by a second terminal apparatus, which is different from the first terminal apparatus.

A touch sensing apparatus is disclosed comprising a panel having a touch surface, emitters and detectors arranged along a perimeter, a light directing portion arranged adjacent the perimeter and comprising a light directing surface, the emitters and/or the detectors are arranged opposite a rear surface of the panel to emit and/or receive light through a channel in a frame element, the channel is arranged opposite the rear surface and extends in a direction of a normal axis of the touch surface, the light directing surface and the channel are arranged on opposite sides of the panel and overlap in the direction of the plane, the light directing surface receive light from the emitters, or direct light to the detectors, through the panel and through the channel, in the direction of the normal axis. A method of manufacturing a frame element for a touch sensing apparatus is disclosed.

A display device includes: a substrate; a plurality of light emitting parts on the substrate, and to emit light; a plurality of light sensing parts on the substrate, and to sense incident light; a bank layer partitioning the plurality of light emitting parts and the plurality of light sensing parts; and a touch sensing layer including a touch electrode on the bank layer. A first distance between one light sensing part from among the plurality of light sensing parts and the touch electrode in one direction is smaller than a second distance between a first light emitting part of the plurality of light emitting parts and the touch electrode in the one direction.

The present disclosure relates to a touch recognition method and device having a lidar sensor, and an objective of the present disclosure is to recognize a touch and determine the motion of a touch by using the lidar sensor. In order to accomplish the objective, the present disclosure comprises the steps of: (a) extracting, on the basis of sensing information about at least one object sensed through a lidar sensor, coordinates of the object; (b) performing clustering on the coordinates of the object extracted from a first frame so as to calculate a first touch object of the first frame and first coordinates of the first touch object; (c) determining the state of the first touch object by using the first touch object and the first coordinates; (d) converting the first coordinates to real coordinates so as to determine whether the first coordinates are located in a preset effective area; and (e) displaying the first touch object at the real coordinates if it is determined that the first touch object is located in the effective area.

The present disclosure relates to a touch recognition method and device having a lidar sensor, and an objective of the present disclosure is to recognize a touch and determine the motion of a touch by using the lidar sensor. In order to accomplish the objective, the present disclosure comprises the steps of: (a) extracting, on the basis of sensing information about at least one object sensed through a lidar sensor, coordinates of the object; (b) performing clustering on the coordinates of the object extracted from a first frame so as to calculate a first touch object of the first frame and first coordinates of the first touch object; (c) determining the state of the first touch object by using the first touch object and the first coordinates; (d) converting the first coordinates to real coordinates so as to determine whether the first coordinates are located in a preset effective area; and (e) displaying the first touch object at the real coordinates if it is determined that the first touch object is located in the effective area.

An electronic device capable of detecting a difference in the way of touch is provided. An electronic device capable of detecting a difference in the way of touch with a small number of components is provided. An electronic device capable of executing various types of processes with simple operation is provided. The electronic device includes a control portion and a display portion. The display portion has a function of displaying an image on a screen and includes a detection portion. The detection portion has a function of detecting a touch operation and a function of imaging, at least twice, a detection object touching the screen. The control portion has a function of calculating a difference between the area of the detection object in first imaging and the area of the detection object in second imaging to execute a different process depending on whether the difference is larger or smaller than a reference.

An electronic device capable of detecting a difference in the way of touch is provided. An electronic device capable of detecting a difference in the way of touch with a small number of components is provided. An electronic device capable of executing various types of processes with simple operation is provided. The electronic device includes a control portion and a display portion. The display portion has a function of displaying an image on a screen and includes a detection portion. The detection portion has a function of detecting a touch operation and a function of imaging, at least twice, a detection object touching the screen. The control portion has a function of calculating a difference between the area of the detection object in first imaging and the area of the detection object in second imaging to execute a different process depending on whether the difference is larger or smaller than a reference.

It is desirable to provide a technology for enhancing quality of a displayed image in an overlap region among a plurality of display regions even in a case where a position of the displayed image is changed. There is provided an information processing apparatus including a display controller (134) that controls display of a displayed image in at least one display region of a plurality of display regions on the basis of an input position detected on the basis of a captured image, in which the plurality of display regions includes a first display region and a second display region, and in a case where the input position has moved to an overlap region where the first display region and the second display region overlap with each other, the display controller controls display of the displayed image in the overlap region on the basis of the input position before moving to the overlap region.