Abstract: A vapor chamber and a heat dissipating device are provided. The vapor chamber includes a first cover plate defining a first side and a second cover plate defining a second side. Support portions are disposed on the first side of the first cover plate at intervals. The second side of the second cover plate is opposite to the first side of the first cover plate. An edge of the second side is connected with an edge of the first side. The second side of the second cover plate defines capillary grooves. Nanoparticles are accumulated on a groove wall of each of the capillary grooves. The nanoparticles are hydrophilic. Gaps between the nanoparticles are communicated. One end of each of the support portions abuts against the second side. Gaps between the support portions are communicated to form a heat dissipating cavity communicated with the capillary grooves.

Abstract: The touch display device includes a cover plate, a touch sensor unit, a display unit and a pressure sensor unit. The touch sensor unit is configured to sense a touch signal applied to the cover plate, the display unit includes a liquid crystal function layer and a backlight module. The pressure sensor unit includes an upper conductive electrode layer and a lower conductive electrode layer, which cooperative forming a capacitance sensor to sense a pressure signal applied to the cover plate. The upper conductive electrode layer is positioned between the liquid crystal function layer and the backlight module. The lower conductive electrode layer is positioned beneath a side of a reflector of the backlight module away from the light guide plate.