Abstract: An electronic device may have a display with touch sensors. One or more shielding layers may be interposed between the display and the touch sensors. The shielding layers may include shielding structures such as a conductive mesh structure and/or a transparent conductive film. The shielding structures may be actively driven or passively biased. In the active driving scheme, one or more inverting circuits may receive a noise signal from a cathode layer in the display and/or from the shielding structures, invert the received noise signal, and drive the inverted noise signal back onto the shielding structures to prevent any noise from the display from negatively impacting the performance of the touch sensors. In the passive biasing scheme, the shielding structures may be biased to a power supply voltage.

Abstract: Provided are a system for transferring data using an image code, a method of outputting an image code on a display device, and a method of decoding an image code. The system includes a code generation device configured to generate an image code including a series of brightness values corresponding to a binary code representing source data or a part of the binary code, a display device configured to output at least one color having the series of brightness values in a code area on a display panel in order of the series of brightness values, and a code decoding device configured to acquire the series of brightness values of the at least one color output in the code area through a sensor and to decode the image code.

Abstract: A mobile terminal 200 generating a control command using a marker attached to a finger includes a camera 210 configured to receive a target image including a finger region, a fingertip region detection module 220 configured to detect a finger region in the target image using an image processing technique, and a fingertip region in the finger region, a marker region detection module 230 configured to detect a color marker region attached to the finger in the target image using a color detection technique, a control module 240 configured to operate the fingertip region detection module or the marker region detection module, based on an input from a user, and a coordinate calculation module 250 configured to calculate three-dimensional coordinate values using the fingertip region or the color marker region.

Abstract: Provided are a system for transferring data using an image code, a method of outputting an image code on a display device, and a method of decoding an image code. The system includes a code generation device configured to generate an image code including a series of brightness values corresponding to a binary code representing source data or a part of the binary code, a display device configured to output at least one color having the series of brightness values in a code area on a display panel in order of the series of brightness values, and a code decoding device configured to acquire the series of brightness values of the at least one color output in the code area through a sensor and to decode the image code.

Abstract: A mobile terminal 200 generating a control command using a marker attached to a finger includes a camera 210 configured to receive a target image including a finger region, a fingertip region detection module 220 configured to detect a finger region in the target image using an image processing technique, and a fingertip region in the finger region, a marker region detection module 230 configured to detect a color marker region attached to the finger in the target image using a color detection technique, a control module 240 configured to operate the fingertip region detection module or the marker region detection module, based on an input from a user, and a coordinate calculation module 250 configured to calculate three-dimensional coordinate values using the fingertip region or the color marker region.