Folded Dual-Substrate Display Layout for Narrow Bezels
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Solution Overview
Problem
Existing display apparatuses face challenges in effectively displaying high-quality images while reducing the size of their peripheral areas, which affects their ability to maintain image quality.
Innovation Solution
A display apparatus design featuring first and second substrates with overlapping films that transmit electrical signals between them, allowing for a reduced peripheral area by bending the substrates to overlap, thereby reducing the need for separate driving drivers and circuit boards, and using flexible printed circuit boards to connect the main and sub-display panels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the peripheral area of the display apparatus is reduced, then the display area can be increased, but the ability to effectively display high-quality images deteriorates
Solution Approach 1:
The patent transitions from a traditional planar substrate layout to a three-dimensional folded structure. The substrate is folded along a folding line, allowing the peripheral area to be positioned in space above or below the main display area rather than occupying lateral space. This dimensional change enables the peripheral area to be reduced in the planar view while maintaining full functionality through the folded configuration.
Solution Approach 2:
The patent employs a flexible substrate that can be folded without damage. This flexible thin film structure allows the substrate to be bent along the folding line, creating the three-dimensional configuration that reduces the peripheral area's footprint while maintaining the electrical connection and functional integrity between the display area and peripheral area.
2Reliability
If separate driving drivers and circuit boards are used for main and sub-display panels, then image quality can be maintained, but manufacturing cost increases
Solution Approach 1:
The patent merges the driving functions for both the main display area and the peripheral display area into a single driving driver located on the first substrate. The driving driver generates signal lines that extend to both display areas, eliminating the need for separate driving drivers and circuit boards for each panel. This consolidation maintains image quality through proper signal distribution while significantly reducing manufacturing complexity and cost.
Data Source
AI summary
A display apparatus including a peripheral area with a reduced area is provided. The display apparatus includes a first substrate, first pads on the first substrate along a first edge of the first substrate, second pads on the first substrate along the first edge and between the first edge and the first pads, a second substrate, third pads on the second substrate along a second edge of the second substrate, fourth pads on the second substrate along the second edge and between the second edge and the third pads, a first film including an end portion electrically connected to the first pads and the other end portion electrically connected to the third pads, and a second film including an end portion electrically connected to the second pads and the other end portion electrically connected to the fourth pads.