Display Panel Non-Display Area Lines with Insulated Electrodes
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Solution Overview
Problem
In display devices, the resistance deviation of non-display area lines leads to image smear issues due to varying lengths and resistances, which is exacerbated by the zigzag design attempting to minimize resistance deviation, resulting in an increased bezel width that does not meet consumer requirements.
Innovation Solution
The implementation of non-display area lines with two electrodes electrically connected by an insulation layer, arranged in a configuration that increases the inclined angle from the center line to the outer side, including first, second, and third lines with electrodes connected through an insulation layer, reduces resistance deviation and bezel width.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If non-display area lines are arranged with increasing inclined angles from center to outer side, then resistance deviation is reduced, but the complexity of line configuration increases
Solution Approach 1:
The patent applies local quality by differentiating the configuration of non-display area lines based on their position. Center lines have smaller inclined angles while outer lines have larger inclined angles, optimizing each region's electrical characteristics for minimal resistance deviation
Solution Approach 2:
The patent employs asymmetry by creating non-uniform inclined angles across different non-display area lines. Rather than using a uniform angle for all lines, the configuration deliberately varies angles from center to outer regions to compensate for position-dependent resistance variations
2Reliability
If the length between driving driver and display area is increased to minimize resistance deviation, then resistance uniformity improves, but bezel width increases
Solution Approach 1:
The patent changes the geometric parameters of non-display area lines by varying their inclined angles. This allows optimization of electrical resistance characteristics without increasing the physical length A, thereby maintaining small bezel width while achieving resistance uniformity
Solution Approach 2:
Instead of solving the resistance deviation problem by extending the length dimension (increasing A), the patent transitions to solving it in the angular dimension by varying inclined angles of different lines, thus achieving the goal without increasing bezel width
Data Source
AI summary
Disclosed are a display panel and a display device including the same, in which each of non-display area lines, provided in an outer side among a plurality of non-display area lines connecting a driving driver to a plurality of display area lines provided in a display area, includes two electrodes electrically connected to each other with an insulation layer therebetween.