Invention Grant
US07242392B2 Keypad with EL united in keypad rubber and method for fabricating the same 失效
键盘与EL联合在键盘橡胶及其制造方法

Keypad with EL united in keypad rubber and method for fabricating the same
Abstract:
The present invention discloses to a keypad with an EL device for a backlight united with a keypad rubber and a method for fabricating the same for improving a click sensitivity and visibility of keys and preventing a wrong operation of the keys by using a silicon injection process.The method for fabricating a keypad used in a portable terminal, comprises the steps of: fabricating a light-emitting device for a backlight; printing an adhesive on a front side and a back side of the light-emitting device; performing an injection process to form a silicon layer, the silicon layer united with the light-emitting device through the adhesive; cutting the light-emitting device united with the silicon layer in a regular shape suitable to the portable terminal; and attaching keys to portions of the silicon layer corresponding to a light-emitting portion of the front side in the light-emitting device.
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