Display Ground Pattern Layout for Higher Pixel Luminous Efficiency
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Solution Overview
Problem
Current display devices, particularly inorganic light-emitting diode (LED) technology, face challenges in achieving high luminous efficiency and durability, especially in high-temperature environments, and in improving pixel luminance.
Innovation Solution
A display device design featuring a substrate with a specific arrangement of pixels, grounding patterns, and signal lines in the non-display area, where the grounding patterns and signal lines are alternately arranged and receive different voltages, and a via insulating layer is used to enhance electrical connections and prevent voltage differences, thereby improving pixel luminous efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If inorganic light-emitting diode technology is used, then durability in high-temperature environment and luminous efficiency for blue light are improved, but achieving high pixel luminance and overall luminous efficiency remains challenging
Solution Approach 1:
The non-display area is divided into four distinct portions (first, second, third, and fourth portions) with different configurations of grounding patterns and signal lines. This segmentation allows optimized electrical connections in different regions to enhance pixel luminance while maintaining the durability benefits of inorganic LED technology.
Solution Approach 2:
Grounding patterns and signal lines are arranged in alternating configurations across multiple portions of the non-display area, creating a multi-dimensional electrical connection structure. This spatial arrangement optimizes voltage distribution and electrical connections to improve pixel luminance without compromising the inherent durability of inorganic LEDs.
2Productivity
If grounding patterns and signal lines are alternately arranged in multiple portions, then electrical connections are optimized and pixel luminous efficiency is improved, but device structure complexity increases
Solution Approach 1:
The alternating arrangement of grounding patterns and signal lines across four portions of the non-display area serves multiple functions simultaneously: optimizing electrical connections, distributing voltage evenly, enhancing pixel luminance, and maintaining structural organization. This multi-functional design improves luminous efficiency without proportionally increasing complexity.
Data Source
AI summary
A display device that includes a display area and a non-display area surrounding the display area, a substrate, pixels disposed in the display area of the substrate, a grounding part disposed in the non-display area of the substrate, and a flexible printed circuit board disposed in the non-display area of the substrate to apply a driving signal to drive the pixels, wherein the non-display area includes first through fourth portions, the fourth portion on which the flexible printed circuit board is disposed, and the second portion spaced-apart from the fourth portion by the display area, the grounding part including a first ground pattern and a second ground pattern that are arranged alternately in the second portion of the non-display area.