Reduced-Width Display Panel Layout for Foldable Circuit Boards
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Solution Overview
Problem
Flexible display devices face challenges in providing sufficient space for circuit components when bent or folded, leading to insufficient space for circuit boards and associated elements.
Innovation Solution
The display device incorporates a display panel with a first portion extending from the non-display area and a second portion facing the rear surface, connected to a circuit board, where the second portion has a reduced width, allowing for efficient space utilization and integration of circuit elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display device is made flexible and foldable, then the adaptability and versatility are improved, but the space for circuit board and components becomes insufficient
Solution Approach 1:
The display panel is divided into a first portion and a second portion with different widths. The second portion has a reduced width compared to the first portion, creating distinct functional zones. This segmentation allows the circuit board to be positioned in the narrower second portion while maintaining adequate space for components, resolving the conflict between flexibility and component space requirements.
Solution Approach 2:
The patent utilizes the width dimension of the display panel to create space for the circuit board. By reducing the width of the second portion specifically, it creates a dedicated area for circuit board placement without compromising the overall flexibility of the display device. This dimensional approach allows simultaneous accommodation of both flexible structure and rigid circuit components.
2Area of stationary object
If the second portion of the display panel has reduced width, then the space utilization for circuit board is improved, but the area for driver integrated circuit placement is constrained
Solution Approach 1:
Different portions of the display panel are assigned different widths to serve different functions. The second portion has reduced width optimized for circuit board placement, while the first portion maintains full width for other components including driver integrated circuits. This local differentiation of geometric properties allows each component type to have its optimal placement area, resolving the space allocation conflict.
Data Source
AI summary
A display device includes a display panel including a display area and a non-display area around the display area, where the display panel includes a display surface on which an image from the display area is displayed, and a rear surface opposite to the display surface, and a circuit board connected to the display panel. The display panel further includes a first portion extending from the non-display area and bent, and a second portion extending from the first portion in a first direction to face the rear surface of the display panel, protruding from the first portion in the first direction, and connected to the circuit board, the first portion of the display panel has a first width in a second direction crossing the first direction, and the second portion of the display panel has a second width less than the first width in the second direction.