Abstract: An electronic device may include an optical sensor configured to emit a reference light to a reference object and detect the reference light reflected from the reference object during calibration, and emit a measurement light to a target object and detect the measurement light reflected from the target object during a measurement; and a processor configured to perform the calibration of the optical sensor while the electronic device is disposed to oppose or in contact with the reference object by controlling the optical sensor to emit and detect the reference light, and estimate bio-information based on a light quantity of the measurement light that is reflected from the target object by the optical sensor, and a light quantity of the reference light reflected from the reference object.

Abstract: An apparatus for estimating bio-information includes: a sensor including one or more light sources configured to emit light to an object and a plurality of detectors configured to detect light reflected from the object; and a processor configured to transform a plurality of light quantities obtained from respective detectors of the plurality of detectors to a distance domain, to combine the plurality of transformed light quantities in the distance domain, to correct the combined light quantity based on a reference light quantity for correcting a deviation of a distance between the one or more light sources and the plurality of detectors, and to estimate bio-information based on a light quantity resulting from the correction.

Abstract: A display device comprises a substrate; a circuit array layer comprising pixel drivers, data lines, first dummy lines, and second dummy lines; and a light emitting array layer. The display area comprises middle, first side, and second side regions. The data lines comprise first, second, and third data lines disposed in the middle, first side, and second side regions, respectively. The first dummy lines comprise a first data detour line disposed in the first side region and adjacent to a part of the second data line, and auxiliary lines. The second dummy lines comprise a second data detour line configured to connect the first data detour line to the third data line, and additional lines. The auxiliary lines comprise a bias auxiliary line to which a bias power is applied; and a second power auxiliary line to which a second power is applied.

Abstract: A connecting device is provided that includes a movable part contacting an external contact terminal, and an elastic part connected to the movable part and configured to provide an elastic force enabling movement of the movable part. The connecting device also includes a support connected to the elastic part, and at least one protecting wall connected to the support and configured to protect the movable part from external forces. The connecting device further includes an extension extending from the at least one protecting wall in a direction along which the movable part moves and configured to bring the movable part close to the external contact terminal, and a base part provided within the extension and configured to reinforce the support.

Abstract: A connecting device is provided that includes a movable part contacting an external contact terminal, and an elastic part connected to the movable part and configured to provide an elastic force enabling movement of the movable part. The connecting device also includes a support connected to the elastic part, and at least one protecting wall connected to the support and configured to protect the movable part from external forces. The connecting device further includes an extension extending from the at least one protecting wall in a direction along which the movable part moves and configured to bring the movable part close to the external contact terminal, and a base part provided within the extension and configured to reinforce the support.