Dome sheet structure including light guide film and mobile communication terminal including the dome sheet structure
AssigneePantech Co., Ltd.
InventorsChoon Kwon KANG, Myoung Hoon Kwak, Sebastian Kim, Ki Tae Park, Byung Ho Song, Po Sik Yang, Tae Yong Lim
Life of this patent
Estimating the term…
Abstract
A dome sheet structure of a mobile communication terminal may include: a metal dome covering a contact point printed on a printed circuit board; and a light guide film disposed on the metal dome. The light guide film may be bonded with the metal dome in a bonding area, and the bonding area may be an area between two concentric circles having different diameters and centered at a center of the metal dome.
Claims15
A dome sheet structure, comprising:
- a metal dome covering a contact point disposed on a printed circuit board;
- and
- a light guide film disposed on the metal dome,
- wherein the light guide film is bonded with the metal dome in a bonding area, the bonding area being an area between two concentric circles having different diameters and centered at a center of the metal dome.
A keypad module, comprising:
- a printed circuit board comprising a contact point;
- a base film disposed on a surface of the printed circuit board to cover a portion of the printed circuit board excluding the contact point;
- a metal dome disposed to cover the contact point;
- a light guide film disposed on the metal dome and the base film;
- and
- a keypad disposed on the light guide film.
A mobile communication terminal, comprising:
- a keypad module, comprising:
- a metal dome covering a contact point printed on a printed circuit board,
- a base film disposed on a surface of the printed circuit board to cover a portion of the printed circuit board excluding the contact point,
- a light guide film disposed on the metal dome, and
- a keypad disposed on the light guide film, the keypad comprising a key;
- and
- a case covering the keypad module, the case comprising a hole corresponding to the key of the keypad.
A method for manufacturing a metal dome structure, the method comprising:
- bonding a metal dome, the metal dome covering a contact point printed on a printed circuit board, with a light guide film disposed on the metal dome,
- wherein the light guide film is bonded with the metal dome in a bonding area, the bonding area being an area between two concentric circles having different diameters and centered at a center of the metal dome.
A method for manufacturing a keypad module, the method comprising:
- providing a printed circuit board comprising a contact point;
- disposing a base film on a surface of the printed circuit board to cover a portion of the printed circuit board excluding the contact point;
- disposing a metal dome to cover the contact point;
- bonding a light guide film with the metal dome in a bonding area, the bonding area being an area between two concentric circles having different diameters and centered at a center of the metal dome;
- and
- disposing a keypad on the light guide film.
Dependencies are inferred from the claim text.