Dome sheet structure including light guide film and mobile communication terminal including the dome sheet structure
AssigneePantech Co., Ltd.
InventorChoon Kwon Kang
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 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 directly on the metal dome and the base film,
- 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 directly 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 directly on the metal dome and the base film, 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:
- disposing a base film on a surface of a printed circuit board to cover a portion of the printed circuit board excluding a contact point;
- and
- bonding a metal dome, the metal dome covering the contact point printed on the printed circuit board, with a light guide film disposed directly on the metal dome and the base film,
- 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 directly with the base film and 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.