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The assembly of key printed-circuit board or key flexible printed-circuit board that use plastic optical sheet that improve light leakage prevention
The assembly of key printed-circuit board or key flexible printed-circuit board that use plastic optical sheet that improve light leakage prevention
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机译:使用塑料光学片改善防漏光的按键印刷电路板或按键柔性印刷电路板的组装
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摘要
The invention waveguide sheet attached to a printed circuit board and can be used as a light source onto a tape dome on top relates to a process and method . ; the sheet of the waveguide is to place the LED in the light source to be used as a printed circuit board, the metal dome of the contact portion in contact with the electrical signal to the switch portion of the printed circuit board Raising , the light generated in the LED light is dispersed through the waveguide in the upper sheet metal dome sheet via a waveguide sheet , the process processing the metal dome switch portion waveguide sheet to pass over all of the light generated from the LED keypad, letter or is characterized by consisting of a structure that can recognize the number.
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