Bent Display Panel Reducing Wire Length and IR Drops
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Solution Overview
Problem
As display apparatuses increase in size, the length of wires for transmitting electric signals increases, leading to signal degradation and the application of different electric signals to display devices, resulting in low-quality images.
Innovation Solution
The display apparatus features a bent display panel with peripheral areas arranged over the rear surface of the display area, reducing the distance between electronic devices and the display area, and includes a DC-DC converter and driver connected to power and data pads to minimize IR drops and ensure high-quality image display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the display apparatus size increases, then the display area increases, but the wire length increases causing signal degradation
Solution Approach 1:
The patent applies dimensionality change by bending the display panel so that peripheral areas are arranged over the rear surface of the display area. This transforms the spatial arrangement from a planar two-dimensional layout to a three-dimensional folded structure, effectively reducing the electrical path length between peripheral circuits and the display area while maintaining a large display area.
2Area of stationary object
If the wire length increases, then the display area can be larger, but the electric signal quality degrades
Solution Approach 1:
By folding the display panel to arrange peripheral areas over the rear surface, the patent reduces the electrical path length in three-dimensional space. This dimensional transformation maintains signal integrity and quality by minimizing resistance and voltage drop, even as the display area increases in size.
3Device complexity
If the peripheral areas are arranged linearly, then the structure is simple, but the electrical path length is long
Solution Approach 1:
The patent applies curvature by bending the display panel into a folded configuration. This curved/three-dimensional arrangement of peripheral areas over the rear surface significantly shortens the electrical path length compared to a linear arrangement, while adding only moderate structural complexity that is manageable through standard manufacturing processes.
Data Source
AI summary
A display apparatus includes: display panel including a display area, a first peripheral area outside a first end of the display area, and a second peripheral area outside a second end of the display area opposite the first end of the display area; and a first electronic device arranged over a rear surface of the display area and electrically connected to the first peripheral area and the second peripheral area. A portion of the display panel between the display area and the first end and a portion of the display panel between the display area and the second end are bent such that the first peripheral area and the second peripheral area are arranged over the rear surface of the display area.