Flexible Display with Nested Shielded Driver Circuit
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Solution Overview
Problem
Existing electronic devices face challenges in integrating flexible displays and protecting sensitive components like display driver integrated circuits (DDICs) while maintaining a compact and user-friendly design.
Innovation Solution
The proposed electronic device incorporates a flexible display with a first board partially overlapping the display and electrically connected to it. A second board overlaps the first board and includes an accommodation portion for the DDIC, which is shielded by a shielding structure connected to the board's ground plane.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the display size is increased to allow users to fully utilize multimedia services, then the display area is improved, but the device becomes less portable and harder to carry
Solution Approach 1:
The display is designed as a flexible display that can change its physical configuration between extended and retracted states. This dynamic transformation allows the display area to be large when extended for multimedia consumption, but compact when retracted for portability, resolving the contradiction between display area and portability.
2Device complexity
If the DDIC is exposed on the first board for electrical connection, then the electrical connection is simplified, but the DDIC becomes vulnerable to electromagnetic interference and damage
Solution Approach 1:
The DDIC is nested within an accommodation portion formed by the second board, creating a protected cavity. This nesting structure allows the DDIC to be shielded from external electromagnetic interference while maintaining electrical connections through the first board, resolving the contradiction between connection simplicity and component protection.
Solution Approach 2:
The second board acts as an intermediary structure that provides both mechanical support and electromagnetic shielding for the DDIC. By positioning the DDIC within the accommodation portion of the second board, the system achieves protection without compromising the electrical connection pathway established by the first board.
3Reliability
If a shielding structure is added to protect the DDIC, then the DDIC protection is improved, but the device complexity increases
Solution Approach 1:
The second board is designed to serve multiple functions simultaneously: it provides structural support for the flexible display, creates the accommodation portion for DDIC housing, and acts as an electromagnetic shield through its ground plane. This multi-functionality achieves comprehensive DDIC protection without adding separate shielding components, thereby avoiding increased device complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration allows for a compact design with enhanced protection of the DDIC, while enabling the flexible display to be easily extended or retracted, improving user interaction and device functionality.
Implementation Method 1
a shielding structure on the second board, covering the accommodation portion, and configured to shield the display driver integrated circuit
Data Source
AI summary
According to an embodiment of the disclosure, an electronic device may include: a flexible display; a first board at least partially overlapping the flexible display and electrically connected to the flexible display; a display driver integrated circuit on the first board; a second board at least partially overlapping the first board, electrically connected to the first board, and including an accommodation portion accommodating at least a part of the display driver integrated circuit; and a shielding structure on the second board, covering the accommodation portion, and configured to shield the display driver integrated circuit.