Rollable Display Housing as an Antenna Radiator
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Solution Overview
Problem
Electronic devices with rollable displays face challenges in securing adequate space for antennas due to the display covering a significant portion of the housing, which can impair antenna performance for cellular and short-range communication.
Innovation Solution
The design incorporates a hollow housing with a rollable display that can be pushed out from inside, utilizing portions of the housing to configure an antenna radiator for cellular and short-range communication, and includes a rotary shaft, a printed circuit board, and a flexible printed circuit board to maintain electrical connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a rollable display is used to create a novel form factor with hollow housing, then the device achieves a unique aesthetic and compact form, but the display covers most of the housing surface area, leaving insufficient space for antenna placement
Solution Approach 1:
The patent merges the housing structure with the antenna function by configuring at least a portion of the hollow housing as an antenna radiator. This integration allows the housing to serve dual purposes: maintaining the novel hollow form factor while simultaneously functioning as the antenna radiation element, thereby eliminating the need for separate antenna spaces.
Solution Approach 2:
The housing is designed to perform multiple functions: it provides the novel hollow aesthetic form factor, protects internal components, and serves as the antenna radiator for wireless communication. This multi-functionality resolves the space conflict by making the housing itself the antenna, rather than requiring separate dedicated antenna elements.
2Shape
If the display is made to cover most of the housing surface for aesthetic purposes, then the device achieves a clean visual appearance, but the radiation area for the antenna is covered or reduced, impairing communication performance
Solution Approach 1:
The patent merges the housing structure with the antenna function by configuring at least a portion of the hollow housing as an antenna radiator. This integration allows the housing to serve dual purposes: maintaining the novel hollow form factor while simultaneously functioning as the antenna radiation element, thereby eliminating the need for separate antenna spaces.
Solution Approach 2:
The patent introduces a conductive layer or conductive pattern on the housing surface that serves as an intermediary between the display and the antenna function. This conductive element can be integrated into the housing structure or applied as a coating, allowing the display to cover the housing while the conductive layer maintains the antenna radiation capability through the display area.
3Adaptability or versatility
If a rotary shaft mechanism is added to enable the rollable display to be pushed out from inside the housing, then the device achieves dynamic display functionality, but the device complexity increases with additional moving parts
Solution Approach 1:
The patent employs a rotary shaft mechanism that rotates to drive the rollable display in and out of the housing. The rotational motion is converted into linear displacement of the display, achieving dynamic functionality through a relatively simple rotational actuator rather than complex linear mechanisms.
Solution Approach 2:
The patent transforms the static housing structure into a dynamic system by introducing a rotary shaft that enables the display to move between retracted and extended positions. This dynamic capability allows the device to adapt its display area based on user needs while maintaining a compact form when the display is retracted.
Data Source
AI summary
An electronic device is provided. The electronic device includes a rollable display, includes a rotation shaft arranged in an inner space of a housing in a first direction, a first printed circuit board (PCB) coupled to the rotation shaft, a rollable display arranged to be wound in the inner space of the housing, and is drawn out from the inside to the outside of the housing in conjunction with the rotation of the rotation shaft and in a second direction perpendicular to the first direction, a first electrical component which is arranged in the inner space of the housing and between a first flat portion and one end of the rotation shaft, fixed irrespective of the rotation of the rotation shaft, and a first rollable flexible PCB (FPCB) which allows the first PCB and the first electrical component to be electrically connected to each other.