BACKGROUND

A foldable mobile phone may incorporate a chassis or device housing which can be folded/unfolded. The foldable mobile phone may contain processors, sensors and other typical smartphone circuitry. For example, a foldable mobile phone might include antennas, cameras, display controllers, speaker modules and light sensors, microphones, CPU and GPU, vibrator and other necessary parts. The foldable mobile phone may further incorporate a flexible display to resize the display area depending whether the phone is folded or unfolded. The display area may be increased when the mobile phone is unfolded. Typically, a folded mobile phone offers a user convenience for carrying around in a small form factor.

SUMMARY

According to one aspect of the present disclosure, there is provided a foldable mobile device comprising a housing having a first portion and a second portion foldable around a folding axis of the housing to allow a folded state of the device, an antenna operatively assembled to the housing; and a display mounted on a front side of the first portion and a front side of the second portion. The first portion has a first plate configured on a back side of the first portion opposite to the front side of the first portion and a first contacting structure. The second portion has a second plate configured on a back side of the second portion opposite to the front side of the second portion. When the mobile device operates in the folded state, the first plate and the second plate are conductively coupled with each other via the first contacting structure.

Optionally, in any preceding aspects, another implementation of the aspect provides that the first contacting structure is configured to substantially separate the antenna from electromagnetic lossy mode resonance existing between the first plate and the second plate when the mobile device is folded.

Optionally, in any preceding aspects, another implementation of the aspect provides that the first contacting structure is configured to reduce the electromagnetic lossy mode resonance existing between the first plate and the second plate when the mobile device is folded.

Optionally, in any preceding aspects, another implementation of the aspect provides that the first plate and the second plate are made of conductive material.

Optionally, in any preceding aspects, another implementation of the aspect provides that the display includes a flexible display having a first displaying area on the front side of the first portion and a second displaying area on the front side of the second portion. The flexible display provides both the first displaying area and the second displaying area substantially on a flat surface when the foldable mobile device is in an unfolded state.

Optionally, in any preceding aspects, another implementation of the aspect provides that the display includes two physically separate displaying screens.

Optionally, in any preceding aspects, another implementation of the aspect provides that when the foldable mobile device is in the folded state, the display are physically visible from outside of the foldable mobile device.

Optionally, in any preceding aspects, another implementation of the aspect provides that the first contacting structure includes one or more conductive pins configured over the first plate according to a pattern, and a distance between two neighboring conductive pins is limited by a threshold separation.

Optionally, in any preceding aspects, another implementation of the aspect provides that the threshold separation is less than 15 mm.

Optionally, in any preceding aspects, another implementation of the aspect provides that the first contacting structure includes one or more conductive bars.

Optionally, in any preceding aspects, another implementation of the aspect provides that an outer surface of the first plate is substantially covered by a first layer of non-conductive material, and an outer surface of the second plate is substantially covered by a second layer of non-conductive material.

Optionally, in any preceding aspects, another implementation of the aspect provides that a side of the second plate is configured with a conductive area to be in contact with the first contacting structure to conductively couple the first plate with the second plate when the device is in the folded state.

Optionally, in any preceding aspects, another implementation of the aspect provides that a second contacting structure of the second plate and the conductive area is provided by the second contacting structure.

Optionally, in any preceding aspects, another implementation of the aspect provides that the first plate covers substantially the back side of the first portion and the second plate covers substantially the back side of the second portion.

Optionally, in any preceding aspects, another implementation of the aspect provides that the first portion and the second portion respectively include a first magnet block and a second magnet block. The first magnet block and the second magnet block are configured to magnetically position the first plate and the second plate for the conductive coupling when the foldable mobile device is in the folded state.

Optionally, in any preceding aspects, another implementation of the aspect provides that the first contacting structure is substantially inside the first portion when the foldable mobile device operates in an unfolded state.

According to one aspect of the present disclosure, there is provided a foldable mobile device comprising a housing, an antenna and a display. The housing has a first portion and a second portion foldable around a folding axis of the housing to allow a folded state of the device, where a first conductive plate is configured on a back side of the first portion, the first conductive plate is substantially covered by a first layer of non-conductive material, and where a second conductive plate is configured on a back side of the second portion, the second conductive plate is substantially covered by a second layer of non-conductive material. The antenna is operatively assembled to the housing. The display is mounted on a front side of the first portion and a front side of the second portion, the front side of the first portion opposite to the backside of the first portion, the front side of the second portion opposite to the back side of the second portion, where when the mobile device operates in the folded state, the first layer and the second layer are sandwiched between the first plate and the second plate which have a separation distance configured to substantially limit presence of electromagnetic lossy mode resonance for performance of the antenna.

Optionally, in any preceding aspects, another implementation of the aspect provides that the separation distance between the first plate and the second plate is substantially equal to a sum of a value of thickness of the first layer and a value of thickness of the second layer.

Optionally, in any preceding aspects, another implementation of the aspect provides that the separation distance is no more than 0.3 mm.

Optionally, in any preceding aspects, another implementation of the aspect provides that the separation distance is no more than 0.2 mm.

Optionally, in any preceding aspects, another implementation of the aspect provides that the separation distance is no more than 0.1 mm.

Optionally, in any preceding aspects, another implementation of the aspect provides that the first plat and the second plate are conductively connected in the folded state, where the first portion and the second portion respectively include a first magnet block and a second magnet block, where the first magnet block and the second magnet block are configured to magnetically position the first plate and the second plate for the conductive connection in the folded state.

