Telefonaktiebolaget Lm Ericsson (publ)

Mats Ove Larsson

Mats Gunnar Olsson

Paul Larsson

Erik M&ouml;ster

Rafael Portela

Olof Simonsson

Per Anders Holmberg

Claes G&ouml;ran Pehrsson

A liquid crystal display panel in a mobile telephone is directly mounted to either a printed circuit board or a frame portion of a mobile telecommunication instrument, e.g., a telephone. An angular mounting structure for the liquid crystal display panel has a pair of support ribs that extend outwardly from a substantially planar portion of a frame, or back cover, of a telephone. Thus, the need for additional mounting parts is obviated. In one embodiment, the liquid crystal display panel is biasedly received within recesses provided on distal ends of support ribs extending from the frame portion. Preferably, the distal ends of the ribs have distal end surfaces which are adapted to fixedly support the liquid crystal display panel in predefined nonparallel relationship with respect to the planar portion of the back cover, with the aid of an adhesive material, e.g., a two sided adhesive tape. A method of assembly for mounting the liquid crystal display using the two sided adhesive tape is disclosed.

Method for assembling a liquid crystal display panel in a mobile telephone

A loudspeaker assembly for use in electronic devices especially hand held communication devices e.g. a cellular mobile telephone, comprising a loudspeaker ( ) for emitting sound through a front cover ( ), and a board ( ) for mounting components, the board ( ) having a first side ( ) carrying user interface means ( ) accessible through the front plate ( ), and a second side ( ), facing towards a back cover ( ). The loudspeaker ( ) is mounted between the board ( ) and the back cover ( ). Thereby the electronic devices can be made very compact.

Loudspeaker assembly

A housing for a device like a mobile phone has a front cover and a back cover mechanically connected to the front cover. A cover connector member is connected along the seam between the front and back covers to reduce the effects of mismatches in cosmetic appearances and in mechanical connections between the front and back covers. A method of assembling the device includes mechanically connecting the front and back covers to form a housing and mechanically connecting a cover connector member to the housing.

Method and apparatus for reducing effect of mismatches and increasing the rigidity of mobile communication device

A portable communication device has an apparatus housing with a movable element attached thereto and a sensor for detecting a position of the movable element in relation to the apparatus housing. The communication device also has an electrodynamic device having a magnet. The sensor is arranged to detect the magnetic field originating from the magnet in the electrodynamic device and to provide an output which is relative to the apparatus housing. A device is provided, in the movable element, for conducting the magnetic field from the electrodynamic device to the sensor.

Portable communication device with a movable element and a sensor for detecting the position thereof

A multiconnector for a handheld telephone includes connectors for a SIM card, an internal battery, and a microphone, as well as additional connectors for other external devices. The multiconnector is mounted to a printed circuit board (PCB) in the telephone and makes electrical contact between the connectors and the PCB. Incorporation of all of the connectors into a single, integral multiconnector simplifies manufacturing and reduces the number of components necessary to construct the telephone.

Multiconnector for mobile telephones

A housing for electronic components is injection molded as a unitary, single-piece, monolithic piece, and includes a front cover, a back cover, and a living hinge. Electronic components, including a PCB, are contained within the housing. A cosmetic cover is secured to the housing over the living hinge, which protrudes from the housing, to make the housing more appealing.

Encapsulation of printed circuit boards

A shielding housing for electrically shielding at least one component on a printed circuit board includes a layer of a non-shielding material having at least one cavity for receiving the component. An elastic gasket is provided on the rim of the cavity. A layer of an electrically shielding material covers the gasket as well as one or both surfaces of the layer of a non-shielding material. In operation, the shielding housing is pressed with its gasket against a conductor located on the printed circuit board around the component to be shielded.

Growing community of inventors

Malmö, Sweden

Mats Ove Larsson