Display Device Bus Wire Segmentation for Signal Compensation
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Solution Overview
Problem
Current display devices face challenges in achieving improved display quality due to limitations in scan signal overlap and sub-pixel connectivity, which affect the efficient selection and data signal distribution to pixels.
Innovation Solution
The display device incorporates a configuration with first and second pixels arranged alternately, connected by first and second bus wires with bridge patterns, allowing for non-overlapping scan signals and efficient data signal distribution through separate scan lines, ensuring sufficient time for threshold voltage compensation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If scan signals are overlapped during a period to improve data signal distribution efficiency, then productivity is improved, but manufacturing precision deteriorates due to insufficient threshold voltage compensation time
Solution Approach 1:
The pixel rows are divided into first pixel rows and second pixel rows, with corresponding first and second bus wires and bridge patterns. This segmentation allows independent scan signal paths for different pixel groups, enabling non-overlapping scan signals to be supplied to first and second pixels respectively, thereby ensuring sufficient threshold voltage compensation time while maintaining efficient data signal distribution
Solution Approach 2:
Instead of overlapping scan signals to improve efficiency (conventional approach), the patent inverts the approach by using non-overlapping scan signals supplied through separate bus wire paths. This inversion resolves the contradiction by prioritizing compensation precision while achieving efficiency through the segmented parallel structure
2Ease of operation
If bridge patterns are positioned between adjacent sub-pixels to improve sub-pixel connectivity, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The bridge patterns are merged with the bus wire structure, where the same conductive elements serve dual functions: as bus wires for signal transmission and as bridge patterns for connecting adjacent sub-pixels. This merging reduces the need for separate connectivity structures, thereby improving ease of operation while minimizing additional device complexity
Data Source
AI summary
A display device including: a plurality of pixel rows, each of the pixel rows including a plurality of first and second pixels arranged along a first direction; a plurality of first bus wires extending along the first direction and being connected to the first pixels, each of the first bus wires being at one side of a corresponding pixel row from among the pixel rows; and a plurality of second bus wires extending along the first direction and being connected to the second pixels, each of the second bus wires being at one side of a corresponding pixel row from among the pixel rows.