Abstract: A pressure sensing element has an elastic porous substrate, an electrode, an upper protective layer, and a lower protective layer. The elastic porous substrate is provided with a piezoelectric layer on a surface of the elastic porous substrate. The electrode is formed on at least one of a top and a bottom of the elastic porous substrate. The upper protective layer and a lower protective layer are provided respectively above and below the elastic porous substrate. The elastic porous substrate has multiple holes arranged in regular and repetitive patterns including gyroidal structures, lattice structures or schwarz structures.

Abstract: An outdoor flat panel display assembly is provided to redesign the back cover of a display module where an isolated external circulation structure may be implemented to the back cover of the display module and the back plate of the case. Cold air is introduced into the heat dissipation space within the back cover via external circulating route while heat produced by the backlight, the system circuit board, and by the radiation of the sun can be dissipated through the external circulating route. The external circulation space is completely isolated from the internal space of the case in such a way that the vapor and dust in the introduced cold air are in no way to have contact with the components of the display and the glass of the case.

Abstract: An outdoor flat panel display assembly is provided to redesign the back cover of a display module where an isolated external circulation structure may be implemented to the back cover of the display module and the back plate of the case. Cold air is introduced into the heat dissipation space within the back cover via external circulating route while heat produced by the backlight, the system circuit board, and by the radiation of the sun can be dissipated through the external circulating route. The external circulation space is completely isolated from the internal space of the case in such a way that the vapor and dust in the introduced cold air are in no way to have contact with the components of the display and the glass of the case.