Bent-Corner Display Wiring Layout for Uniform Image Quality
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Partially bent display devices face significant stress issues, which can lead to a failure in displaying high-quality images due to structural limitations.
Innovation Solution
The display device incorporates a substrate design with specific wiring configurations and layering, including a central area, corner areas with extensions, and intermediate areas, where wiring lines are strategically placed to manage stress and ensure effective voltage transmission to driving transistors, thereby enhancing image quality even at bent corners.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a display device is designed with a bent structure, then the display device can be flexible and adaptable to different form factors, but large stress is generated in the display panel which prevents high-quality image display
Solution Approach 1:
The wiring lines are divided into multiple segments (first wiring line, second wiring line, third wiring line, fourth wiring line) with distinct functions. The first wiring line is positioned in the intermediate area while the second wiring line is in the corner area, allowing each segment to be optimized for its specific location and stress conditions in the bent display device.
Solution Approach 2:
Different regions of the display device are assigned different wiring configurations based on their specific requirements. The intermediate area has the first wiring line for data transmission, while the corner area has the second wiring line with connection wiring lines for power supply, allowing each local region to be optimized for its functional needs and stress characteristics.
2Manufacturing precision
If wiring lines are added to manage stress in bent areas, then stress reduction is achieved enabling high-quality image display, but the device complexity increases
Solution Approach 1:
The first wiring line serves multiple functions: it transmits data signals from the data driver, provides a reference voltage for the pixel circuit, and acts as a structural element in the intermediate area. This multi-functionality reduces the need for separate dedicated wiring lines for each purpose, thereby managing complexity.
Solution Approach 2:
The first wiring line acts as an intermediary element between the data driver and the pixel circuit in the bent display device. It provides both data transmission and reference voltage, mediating the electrical connection and stress management in the intermediate area, which simplifies the overall wiring structure compared to having separate dedicated lines.
Data Source
AI summary
A display device includes: a substrate including a central area, a corner area including an extension area extending in a direction away from the central area, and an intermediate area between the central area and the corner area; a first wiring line disposed in the intermediate area; a second-first wiring line extending along one of opposite edges of the extension area, a second-second wiring line extending along the other one of the opposite edges of the extension area, a first-first connection wiring line, which electrically connects the second-first wiring line and the second-second wiring line to the first wiring line, a plurality of second connection wiring lines connecting the second-first wiring line to the second-second wiring line in the extension area, and a third connection wiring line connecting the plurality of second connection wiring lines to each other in the extension area.