Portable terminal

• US 7,525,535 B2
• Filed: 07/26/2007
• Issued: 04/28/2009
• Est. Priority Date: 07/27/2006
• Status: Active Grant

• Current Assignee: VideoLabs, Inc.
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Park, Min-ho, Kim, Jong-Hun
• Primary Examiner(s): LEWIS, DAVID LEE
• Application Number:
  US11/828,978
• Publication Number:
  US 20080024462A1
• Time in Patent Office: 642 Days
• Field of Search: 345156-184, 345/901, 345/905, 178 1801- 1811, 178 1901- 1907
• US Class Current: 345/169
• CPC Class Codes: G06F 1/1626 with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]
• CPC Class Codes: G06F 1/1637 Details related to the display arrangement, including those related to the mounting of the display in the housing
• CPC Class Codes: G06F 1/1656 Details related to functional adaptations of the enclosure, e.g. to provide protection against EMI, shock, water, or to host detachable peripherals like a mouse or removable expansions units like PCMCIA cards, or to provide access to internal components for maintenance or to removable storage supports like CDs or DVDs, or to mechanically mount accessories mounting of accessories to a computer display G06F1/1607; display hoods G06F1/1603; cooling arrangements for portable computers G06F1/203
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/044 by capacitive means

Abstract

A portable terminal has a body including a transparent window integrally formed therein, a display disposed beneath the body and visible through the transparent window, and a touch screen located between the display and the body, the touch screen permitting signal input in a capacitive manner.

Claims

1. A portable terminal, comprising:

a housing having a transparent window integrally formed therein, the housing including an opaque film located on a lower surface thereof, the opaque film having an open portion to define the transparent window;

a display disposed at the housing, the display displaying information through the transparent window; and

a touch pad disposed between the housing and the display, the touch pad permitting signal input in a capacitive manner, the touch pad having one end electrically connected to at least one of the display and a main circuitry supporting substrate via a flexible printed circuit (FPC), wherein;

the touch pad includes;

a touch sensing-unit disposed at an inner surface of the transparent window and touchable by a user'"'"'s body via the transparent window; and

a signal-transferring unit disposed at an edge of the touch-sensing unit to transfer a signal corresponding to a coordinate value read by the touch-sensing unit; and

the FPC includes a control circuit mounted thereon, the control circuit being configured to convert the signal generated by the signal transferring unit into the coordinate value and to transfer the coordinate value to a controller of the main circuitry supporting substrate.

2. The portable terminal of claim 1, wherein the housing is formed by a double injection molding.

3. The portable terminal of claim 1, wherein the signal-transferring unit disposed at the edge of the touch pad is transparent.

4. The portable terminal of claim 1, wherein a gap maintaining pad is interposed between an edge of the touch pad and an edge of the display to maintain a gap between the touch pad and the display.

5. A portable terminal, comprising:

a housing having a transparent window integrally formed therein, the housing including an opaque film located on a lower surface thereof, the opaque film having an open portion to define the transparent window;

a display disposed at the housing, the display displaying information through the transparent window; and

a touch pad disposed between the housing and the display, the touch pad permitting signal input in a capacitive manner, the touch pad having one end electrically connected to at least one of the display and a main circuitry supporting substrate via a flexible printed circuit (FPC),

wherein the FPC includes a control circuit mounted thereon, the control circuit being configured to convert a signal generated by the touch pad into a coordinate value and to transfer the coordinate value to a controller of the main circuitry supporting substrate.