Patent ID: 8659578

Claim:
A display Module comprising: a flat display panel having a surface of as a touch surface; a support main located at an edge of the flat display panel, wherein the flat display panel is on the support main; at least two infrared sensor modules provided on at least two corners of the flat display panel, respectively; a retro-reflecting plate arranged on the edge of the flat display panel where the infrared sensor modules are not positioned; and a guide structure within a top case, wherein the retro-reflecting plate is attached on a side of the guide structure, wherein the guide structure is coupled to the top case through a guide groove of the top case at an inner part of the top case, and wherein the guide structure includes: a body located at a lower side of the top case; a coupling portion which is protruded from the body, and is coupled to the guide groove of the top case, wherein the top case is made of a metal; a support which supports the retro-reflecting plate at a lower part and presses the flat display crystal panel; and an upper protrusion portion which is protruded from the body such that it is brought into contact with a lateral side of an upper surface of the top case covering the flat display panel.