Curved Gate Link Line Layout for Uniform OLED Gate Driving
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Solution Overview
Problem
The gate driving unit in organic light-emitting diode (OLED) displays experiences non-uniform input signals, leading to variations in output signals and reduced image quality.
Innovation Solution
A display apparatus with a gate driving unit in the non-display area, connected by a link line featuring first, second, and third link portions with a curved shape, ensuring uniform potential distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a gate driving unit is provided in the non-display area, then manufacturing costs and processes are reduced, but input signal non-uniformity occurs leading to gate dim and reduced image quality
Solution Approach 1:
The link line is designed with a curved shape instead of a straight configuration. This curvature allows the link line to better distribute the input signal uniformly across the gate driving unit by reducing signal degradation in specific directions, thereby maintaining signal uniformity while keeping the gate driving unit in the non-display area for manufacturing benefits
2Device complexity
If a straight link line is used to connect the gate driving unit, then the structure is simple, but signal non-uniformity occurs causing gate dim
Solution Approach 1:
The link line incorporates a curved configuration rather than a straight design. This curved structure optimizes signal distribution by reducing directional signal loss and improving uniformity of potential distribution across the gate driving unit, thereby preventing gate dim without significantly increasing structural complexity
Data Source
AI summary
A display apparatus includes a substrate including a display area having a subpixel and a non-display area surrounding the display area, a driving transistor and a light emitting diode provided at the subpixel, a gate driving unit provided in the non-display area, and a link line provided in the non-display area and connected to the gate driving unit, wherein the link line includes a first link portion of a first direction, a second link portion of a second direction, and a third link portion connecting the first link portion and the second link portion and having a substantially curved shape.