Touch display module, electronic device using the touch display module and method of assembling thereof

A touch display module, comprising:

• a touch panel with at least one side having a panel jointed surface;
• an adhesive element having a first adhesive surface and a second adhesive surface opposite to each other, wherein the first adhesive surface is operably attached to the panel jointed surface;
• a release element operably attached to the second adhesive surface of the adhesive element;
• and
• a positioning element having an auxiliary section and an extended section connected to each other, wherein the auxiliary section is operably attached to the second adhesive surface, and the extended section extends from an edge of the second adhesive surface.

A method for assembling electronic device, comprising steps of:

• providing a case having an assembling groove, a groove jointed surface and a groove side surface;
• wherein the groove jointed surface and the groove side surface are adjacent to each other and are located in at least one side of the assembling groove;
• providing a touch display module including at least a touch panel, wherein at least one side of the touch panel has a panel jointed surface and a panel side surface adjacent to each other;
• providing an adhesive element and a release element, wherein the adhesive element has a first adhesive surface and a second adhesive surface opposite to each other, wherein the first adhesive surface is operably attached to the panel jointed surface, the release element is operably attached to the second adhesive surface and has a notch configured to expose partial second adhesive surface;
• providing an positioning element having an auxiliary section and an extended section connected to each other, wherein the auxiliary section is located in the notch of the release element and is operably attached to partial the second adhesive surface;
• the extended section extends from the edge of the second adhesive surface;
• removing the release element to expose the second adhesive surface of the adhesive element;
• disposing the touch panel on the assembling groove of the case to make the second adhesive surface faces the groove jointed surface and the panel side surface faces the groove side surface;
• attaching the second adhesive surface of the adhesive element to the groove jointed surface of the case, wherein the extended section is clamped between the panel side surface and the groove side surface, which makes the gap between the groove side surface and the panel side surface substantially the same as the thickness of the extended section;
• and
• removing at least the extended section of the positioning element.