Liquid Crystal Electrode Structure to Reduce Disclination Lines
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Increasing pixel density in electronic devices leads to liquid crystal disclination lines entering the aperture region, reducing transmissivity and necessitating increased backlight brightness, which in turn increases power consumption.
Innovation Solution
The design includes a substrate with a semiconductor, a first insulating layer, a first electrode, and a second electrode, where the first electrode is electrically connected through a hole in the insulating layer, and the second electrode overlaps with the first electrode's side edge and hole projection, creating a level difference and reducing liquid crystal disclination lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If pixel density is increased to meet light weight, high resolution, and wide field of view requirements, then resolution and field of view are improved, but liquid crystal disclination lines enter the aperture region which reduces transmissivity and increases power consumption
Solution Approach 1:
The first electrode is segmented into multiple sub-electrodes arranged in an interdigitated pattern, which divides the electric field distribution and prevents disclination lines from entering the aperture region while maintaining high pixel density for improved resolution
Solution Approach 2:
The electrode structure is designed with different configurations in different regions: the first electrode includes sub-electrodes with specific patterns in the aperture region to control liquid crystal alignment locally, while maintaining overall high pixel density for resolution improvement without increasing power consumption
Data Source
AI summary
An electronic device includes a substrate, a semiconductor, a first insulating layer, a first electrode, a second electrode, and a second insulating layer. The semiconductor is disposed on the substrate. The first insulating layer is disposed on the semiconductor and includes a hole. The first electrode is disposed on the first insulating layer and electrically connected to the semiconductor through the hole. The second electrode is disposed on the first electrode. The second insulating layer is disposed between the first electrode and the second electrode. In a cross-sectional view of the electronic device, the first electrode includes a side edge disposed in the hole, and a projection of the second electrode on the substrate is overlapped with a projection of the side edge of the first electrode on the substrate and a projection of the hole on the substrate.