Display Panel Power Trace Segmentation for Light Reflection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In flexible displays, the light reflection from uncovered metal power traces in the non-display region affects the display effect, as the ink used to cover the non-display region does not fully cover the power traces.
Innovation Solution
The display panel incorporates a first power trace with a sheet-shaped trace and a plurality of strip-shaped traces in the fan-out region, where the strip-shaped traces are spaced apart and extend towards the display region, reducing the reflective area and improving display quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a bonding tolerance is considered when bonding the cover plate onto the display panel, then the ink can be applied to edges of the cover plate, but the power traces in the non-display region will not be completely covered by the ink
Solution Approach 1:
The power trace is divided into multiple segments: a sheet-shaped trace portion and multiple strip-shaped trace portions spaced apart from each other. This segmentation reduces the continuous reflective surface area while maintaining electrical connectivity, thereby reducing light reflection effects without compromising the bonding process
Solution Approach 2:
Different portions of the power trace are designed with different geometries (sheet-shaped vs. strip-shaped) to optimize local characteristics. The strip-shaped portions have smaller cross-sectional areas that reduce reflectivity, while the sheet-shaped portion maintains adequate electrical conductivity and connection to the cover plate
2Reliability
If the power trace is designed as a continuous sheet-shaped trace, then the electrical conductivity is maintained, but the reflective area is large affecting display quality
Solution Approach 1:
The continuous power trace is segmented into multiple spaced-apart strip-shaped portions that are electrically connected through the sheet-shaped trace. This maintains electrical conductivity while reducing the continuous reflective surface, as the spaced-apart strips create interruptions in the reflective path
Solution Approach 2:
The power trace design transitions from a two-dimensional continuous sheet to a combination of sheet and multiple smaller strip portions. This dimensional reconfiguration reduces the projected reflective area while maintaining the necessary electrical pathways through the sheet-shaped connector
Data Source
AI summary
A display panel and a display apparatus are provided; the display panel is divided into a display region and a non-display region at least partially surrounding the display region; a fan-out region is provided in the non-display region; the display panel includes a substrate and a first power trace provided on the substrate; a first portion of the first power trace is provided in the fan-out region and configured to transmit a first power signal; and the first portion includes: a sheet-shaped trace proximal to an edge of the display panel, and a plurality of stripe-shaped traces spaced apart from one another and extending from the sheet-shaped trace toward the display region. According to the present disclosure, the first power trace in the fan-out region is configured to include the plurality of strip-shaped traces.