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
- Patent Title: Keypad with EL united in keypad rubber and method for fabricating the same
- Patent Title (中): 键盘与EL联合在键盘橡胶及其制造方法
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Application No.: US10434609Application Date: 2003-05-09
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Publication No.: US07242392B2Publication Date: 2007-07-10
- Inventor: Wan Soo Han , Ho Seok Ko , Sang Hoon Lee , Young Woo Lee
- Applicant: Wan Soo Han , Ho Seok Ko , Sang Hoon Lee , Young Woo Lee
- Applicant Address: KR Pyungtaek, Gyeonggi-do
- Assignee: Hansung Elcomtec Co., Ltd.
- Current Assignee: Hansung Elcomtec Co., Ltd.
- Current Assignee Address: KR Pyungtaek, Gyeonggi-do
- Agent Robert E. Bushnell, Esq.
- Priority: KR10-2003-0004957 20030124
- Main IPC: G09G5/00
- IPC: G09G5/00

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.
Public/Granted literature
- US20040145573A1 Keypad with EL united in keypad rubber and method for fabricating the same Public/Granted day:2004-07-29
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