Polygonal Spacer Design for Display Panel Stability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Liquid crystal display panels face issues with vacuum bubbles, dislocation light leakage, and mura due to spacer displacement during impact or usage, which worsen with increasing pixel resolution and smaller pixel dimensions.
Innovation Solution
A display panel design featuring a first substrate with a transmitting line and protrusion structures, and a second substrate with a polygonal-shaped spacer that overlaps with the transmitting line, providing increased stability and reducing the risk of spacer displacement, thereby maintaining a consistent gap and preventing vacuum bubbles and light leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the pixel dimension is decreased to increase resolution, then the display resolution is improved, but the spacer displacement problem becomes more serious
Solution Approach 1:
The spacer is designed with an asymmetric polygonal shape where one included angle is greater than 90 degrees and another is less than 90 degrees. This asymmetric geometry creates a stable configuration that prevents spacer displacement, solving the reliability problem while allowing continued miniaturization for higher resolution displays.
Solution Approach 2:
The invention changes the geometric parameters of the spacer from conventional shapes to a specific polygonal shape with controlled included angles. By adjusting the angular parameters (one angle >90°, another <90°), the spacer achieves optimal stability against displacement, enabling high-resolution displays without suffering from spacer displacement issues.
2Reliability
If the spacer displacement is prevented to maintain gap uniformity, then the display quality is improved, but the device complexity increases
Solution Approach 1:
The asymmetric polygonal shape with specific included angles provides inherent stability against displacement. This geometric design achieves gap uniformity and prevents display defects without requiring additional complex structures or mechanisms, thus maintaining manufacturing simplicity.
Solution Approach 2:
The spacer's polygonal shape creates localized geometric features (specific included angles) that provide displacement resistance. This local geometric optimization achieves the goal of preventing spacer displacement and maintaining gap uniformity without increasing overall device complexity.
Data Source
AI summary
A display panel includes a first substrate structure, a second substrate structure and a display medium layer. The first substrate structure includes a first substrate, a transmitting line, a first protrusion structure and a second protrusion structure. The transmitting line, the first protrusion structure and the second protrusion structure are disposed on the first substrate. The second substrate structure includes a second substrate and a first spacer. The first spacer is disposed on the second substrate. The shape of a vertical projection of the first spacer projected on the first substrate is a polygonal shape having a first side, a second side, a third side, a first included angle and a second included angle. The first included angel is between the first side and the third side, and the first included angle is greater than 90 degrees. The second included angle is less than 90 degrees.