In a push button portion of a button member, a first supported portion is supported by a push-in portion of a push-in type switch. A second supported portion is supported in a second area by an electronic board. The second area is adjacent to one side of the electronic component. The push-in type switch is present in a first area which is adjacent to another side of the electronic component that is opposite to the one side. An elastic portion connects a portion including the second supported portion to a portion including the push button portion and the first supported portion. A plurality of guided portions are restricted by a plurality of guide projection portions projecting from an exterior member, from being displaced in a direction intersecting a depth direction. The plurality of guide projection portions are provided in the first area and the second area.

A button deck assembly includes a button deck having at least one mechanical pushbutton, the pushbutton includes a lens cap, a liquid-crystal display (LCD) panel, and an optical block configured to transmit images from the LCD panel for display through the lens cap, a bottom surface of the optical block is positioned on the LCD panel, an air gap is defined between a top surface of the optical block and the lens cap. The assembly also includes a printed circuit board (PCB) assembly defining a PCB aperture, the PCB aperture is sized to receive the optical block, and an elastomeric membrane defining a membrane aperture sized to receive the optical block, the optical block extends from the LCD panel through the PCB and membrane apertures, the membrane channels fluid flow to outer edges of the membrane and around the PCB assembly and the LCD panel.

An apparatus includes a coverlay layer having a void therein. A backing layer is disposed against a first side of the coverlay layer. A transmission layer is disposed against a second side of the coverlay layer opposite the first side such that a chamber is formed within the void between the transmission layer and the backing layer. The transmission layer includes a first area having a first level of light transmissivity and a second area having a second level of light transmissivity that is greater than the first level of light transmissivity. The transmission layer is oriented so that at least a portion of each of the first area and the second area overlaps the void. A light source is positioned in the chamber between the first area of the transmission layer and the backing layer.

An apparatus includes a coverlay layer having a void therein. A backing layer is disposed against a first side of the coverlay layer. A transmission layer is disposed against a second side of the coverlay layer opposite the first side such that a chamber is formed within the void between the transmission layer and the backing layer. The transmission layer includes a first area having a first level of light transmissivity and a second area having a second level of light transmissivity that is greater than the first level of light transmissivity. The transmission layer is oriented so that at least a portion of each of the first area and the second area overlaps the void. A light source is positioned in the chamber between the first area of the transmission layer and the backing layer.

A button includes a display element including a mounting section, a hollowed bottom board having a joint section, support bar members, a button cap body having a light-transmitting section and a contacting section, and an elastic element. The support bar members and the elastic element are arranged on the contacting section located outside the button cap body to that a user is allowed to see, by way of the light-transmitting section of the button cap body, through the hollowed bottom board to watch the display element at the bottom so as to completely observe a text/pattern section of the display element. In a pressing-down operation, ends of the support bar members are allowed to rotate while sliding horizontally so as to cause the elastic element to drive the display element. Further, individual button modularization can be achieved with the arrangement of the mounting section and the joint section.

A button deck assembly includes a button deck having at least one mechanical pushbutton, the pushbutton includes a lens cap, a liquid-crystal display (LCD) panel, and an optical block configured to transmit images from the LCD panel for display through the lens cap, a bottom surface of the optical block is positioned on the LCD panel, an air gap is defined between a top surface of the optical block and the lens cap. The assembly also includes a printed circuit board (PCB) assembly defining a PCB aperture, the PCB aperture is sized to receive the optical block, and an elastomeric membrane defining a membrane aperture sized to receive the optical block, the optical block extends from the LCD panel through the PCB and membrane apertures, the membrane channels fluid flow to outer edges of the membrane and around the PCB assembly and the LCD panel.