Patent ID: 8723122

Claim:
An infrared sensor module including a sensor block with a light receiving region, wherein: the sensor block is perpendicular to a surface of a display panel; the light receiving region is divided into ‘m×n’ blocks (where, each of ‘m’ and ‘n’ is a natural number of two or more) arranged in ‘m’ rows by ‘n’ columns, and each of the blocks includes a plurality of light receiving pixels arranged in the same row; and optical signals of a particular block, to which light is received, are transmitted to a touch control unit, wherein the particular block is selected from at least one of the ‘m’ rows with respect to each of the ‘n’ columns, wherein the infrared sensor module is formed on an inner surface of a case top encasing the display panel and the light receiving region has a height under a height of the inner surface of the case top and wherein a block which is selected during an auto-calibration is activated as a Region of Interest (ROI) during detection of a touch.