Dual-Edge Scan Driver Layout for Narrow-Bezel Displays
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Solution Overview
Problem
Existing display devices face challenges in reducing the load for outputting scan signals and minimizing the size of the non-display area.
Innovation Solution
The display device is designed with scan drivers positioned on both edges of divided display areas, connected by connection lines that do not overlap with pixel circuits, utilizing silicon-based and oxide-based transistors for efficient signal distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If scan drivers are positioned on both edges of divided display areas, then the load for outputting scan signals is reduced, but the device complexity increases
Solution Approach 1:
The display area is divided into first and second display areas, each with its own scan drivers positioned on both edges. This segmentation distributes the scan signal output load across multiple independent driver units, reducing the burden on any single driver while managing complexity through modular organization.
2Manufacturing precision
If connection lines are positioned to not overlap with pixel circuits, then manufacturing precision is improved, but the area of stationary object increases
Solution Approach 1:
Connection lines are routed in the non-display area, utilizing the vertical dimension and edge regions rather than overlapping with pixel circuits in the display area. This dimensional separation improves manufacturing precision by avoiding circuit interference while minimizing the increase in non-display area through efficient spatial utilization.
Data Source
AI summary
Provided is a display device including a first display area including a pixel circuit and a scan line configured to provide a scan signal to the pixel circuit of the first display area. The display device includes a second display area located at a side of the first display area and including a pixel circuit and a scan line configured to provide a scan signal to the pixel circuit of the second display area. The display device includes a first scan driver located at a first side edge of the first display area, a second scan driver located at a second side edge of the first display area, a third scan driver located at a first side edge of the second display area, and a fourth scan driver located at a second side edge of the second display area.