A display device includes a display panel including a first area and a second area surrounding the first area, a plurality of pressure sensors disposed on the display panel, a dielectric layer disposed on the plurality of pressure sensors, and a bracket accommodating the display panel, the plurality of pressure sensors, and the dielectric layer. The dielectric layer forms a capacitance between the plurality of pressure sensors and the bracket. A first capacitance corresponding to the first area is smaller than a second capacitance corresponding to the second area.

A display deice capable of recognizing a uniform intensity of a touch regardless of a position of a touch input. The display device includes a display panel including a first area and a second area surrounding the first area, a plurality of pressure sensors disposed on the display panel, a dielectric layer disposed on the plurality of pressure sensors, and a bracket accommodating the display panel, the plurality of pressure sensors, and the dielectric layer. The dielectric layer forms a capacitance between the plurality of pressure sensors and the bracket. A first capacitance corresponding to the first area is smaller than a second capacitance corresponding to the second area.

A device for acquiring a characteristic image of a body, including: an image sensor including a plurality of photosensitive cells; and a layer of a material having its color varying according to a physical parameter characteristic of said body, coating a surface of the sensor.

Connectors with piezochromic material for indicating interface of connector ends and related methods are disclosed. According to an aspect, a connector includes a connector end that defines an interior space for containing a piezochromic material. The connector end is configured to interface with another connector end. The connector also includes a window integrated into the connector end to provide view from outside of the connector end to the interior space. Further, the connector includes a moveable component integrated with the connector end and moveable, by interface of the connector end with the other connector end, in a direction to decrease a volume of the interior space for compressing the piezochromic material contained in the interior space such that the piezochromic material changes color for indicating interface of the connector end with the other connector end.