Keyboard structure with changeable typeface of key button
A technology of keys and keyboards, which is applied in the field of keyboard structures with changeable key fonts, and can solve the problems of small keys, printed characters, and cumbersome printing and production of keyboard fonts, etc.
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[0028] see figure 1 , figure 2 , the first embodiment of the keyboard structure of the present invention that can change the key font, it includes a keyboard 10, call display layer 20, circuit circuit layer 30, circuit board 40 and light source 50, this keyboard 10 is provided with plural keys 11, and this key 11 is Transparent or light-transmitting material body; the electrochromic display layer 20 is located under the keyboard 10, and it includes a plurality of electrochromic films 21 (Electrochromic), and the electrochromic film 21 includes an electrochromic material 22 and font 23, and the electrochromic film 21 includes an electrochromic material 22 and a font 23. Color-changing material 22 is made of conductive plastic 221 on one side, metal oxide film 222 in the middle (such as WO 3 ) and the electrolyte lithium 223 on the other side constitutes a sandwich sandwich structure, wherein the conductive plastic 221 is used to transfer negatively charged electrons, and the ...
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