Display Panel Border Width Reduction via Flexible Circuit Board Integration
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Solution Overview
Problem
Current display technologies face challenges in minimizing the border width of display panels, as integrated circuits occupy valuable space, leading to wider borders and increased costs when multiple circuits are required for various functions.
Innovation Solution
The integration of an integrated circuit on a separate substrate connected via a flexible circuit board, allowing for a smaller stepped area and reduced border width, while also optimizing the placement and number of pins to minimize space and cost.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If integrated circuits are directly mounted on the display substrate, then electrical connection is simplified, but the border width increases due to the occupied stepped area
Solution Approach 1:
The integrated circuit is extracted from the display substrate and mounted on a separate flexible circuit board. This separation removes the circuit mounting area from the stepped area, allowing the stepped area width to be minimized while maintaining electrical connection functionality through the flexible circuit board's circuits.
Solution Approach 2:
The flexible circuit board acts as an intermediary between the display substrate and the integrated circuit. It provides the electrical connection pathway without requiring the integrated circuit to be directly mounted on the display substrate, thus resolving the conflict between connection simplicity and border width.
2Adaptability or versatility
If multiple integrated circuits are used for different functions, then functionality is enhanced, but the border width and cost increase
Solution Approach 1:
The flexible circuit board is designed to accommodate multiple integrated circuits for different functions (display driving, touch control, sensing, etc.) on a single board. This multi-functional integration allows enhanced functionality without requiring separate mounting areas for each circuit, thus preventing border width increase.
Solution Approach 2:
Multiple integrated circuits and their corresponding circuit pathways are merged onto a single flexible circuit board. This consolidation combines what would otherwise be separate mounting requirements into one integrated structure, enabling multi-functionality while minimizing the overall stepped area width.
Data Source
AI summary
The present disclosure relates to the field of display technologies and, in particular, to a display panel and a display device thereof, for reducing the border width of the display panel. The display panel includes: a display substrate including a display area and a stepped area disposed at a side of the display area, an integrated substrate is provided with an integrated circuit, and a flexible circuit board respectively connected with the stepped area of the display substrate and with the integrated substrate. The integrated circuit is electrically connected with the display substrate via a circuit on the flexible circuit board. The display panel is applicable in the display device.