Thin switch and display panel provided with switch

A thin switch used in superposition on a display panel having an information display function, comprising:

• a plurality of pushbuttons movable in a press direction at a constant stroke and transparent or translucent;
• bridges arranged in the vicinity of outer sides of at least two opposite edges of each said pushbutton;
• a plurality of first permanent magnets provided on ends of respective said pushbuttons on the sides facing said bridges respectively;
• a plurality of magnetic bodies or a plurality of second permanent magnets provided on portions above said bridges opposed to respective said first permanent magnets respectively;
• and
• a plurality of Hall element integrated circuits provided on said bridges on the sides facing said first permanent magnets in correspondence to respective said pushbuttons respectively, wherein
• each said magnetic body or each said second permanent magnet
• structures return means generating returning force in each said pushbutton by attractive force generated between the same and corresponding each said first permanent magnet while causing a click feeling when pressing each said pushbutton along with corresponding said first permanent magnet, and
• each said Hall element integrated circuit
• has a Hall element and a determination circuit determining whether or not its Hall voltage is larger than a threshold respectively, for detecting change of a magnetic field by each said first permanent magnet provided on said pushbutton when pressing corresponding each said pushbutton and changing an output state.

A display panel provided with a switch performing display output and acceptance of switch input, comprising:

• a display panel having an information display function;
• a pushbutton arranged on said display panel, movable in a press direction at a constant stroke and transparent or translucent;
• a bridge arranged in the vicinity of outer sides of at least two opposite edges of said pushbutton;
• a first permanent magnet provided on an end of said pushbutton on the side facing said bridge;
• a magnetic body or a second permanent magnet provided on an upper portion of said bridge opposed to said first permanent magnet;
• and
• a Hall element integrated circuit provided on said bridge on the side facing said first permanent magnet in correspondence to said pushbutton, wherein
• said magnetic body or said second permanent magnet
• structures return means generating returning force in said pushbutton by attractive force generated between the same and said first permanent magnet while causing a click feeling when pressing said pushbutton along with said first permanent magnet, and
• said Hall element integrated circuit
• has a Hall element and a determination circuit determining whether or not its Hall voltage is larger than a threshold, for detecting change of a magnetic field by said first permanent magnet provided on said pushbutton when pressing corresponding said pushbutton and changing an output state.