Multi-Source-Line Display Layout for High-Resolution Driving
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Solution Overview
Problem
High-resolution and large-size display devices face challenges due to increased load on transistors, particularly when field-effect mobility is low, leading to difficulties in high-frequency operation and higher manufacturing costs.
Innovation Solution
A display device design with multiple gate and source lines, where signals of the same polarity are supplied to adjacent lines, reducing the load on source drivers and allowing for efficient operation of transistors with low field-effect mobility, and using metal oxides for semiconductor layers to enhance reliability and manufacturing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the resolution or screen size of a display device is increased, then the display quality is improved, but the load on transistors increases making high-frequency operation difficult
Solution Approach 1:
The display device is divided into multiple blocks, with each block containing a subset of pixels that share common source lines. This segmentation reduces the number of pixels connected to each source line, thereby reducing the capacitive load on transistors and enabling reliable high-frequency operation while maintaining high overall resolution
Solution Approach 2:
Multiple source lines are provided for each column (g source lines per column where g≥3), adding a dimensional factor to the traditional row-column pixel addressing scheme. This multi-line approach distributes the signal transmission load across multiple parallel paths, reducing the burden on individual transistors
2Measurement precision
If the number of pixels is increased for high-resolution display, then the display quality is improved, but the manufacturing cost increases
Solution Approach 1:
By segmenting the display into blocks with shared source lines, the number of source lines required is reduced compared to a conventional one-to-one mapping. This reduction in interconnect complexity lowers manufacturing costs while achieving high resolution through the multi-line per column approach
Solution Approach 2:
Source lines serve multiple functions by being shared across multiple pixels within a block. Each source line carries signals to multiple pixels simultaneously, reducing the total number of lines needed and simplifying the manufacturing process for high-resolution displays
Data Source
AI summary
A display device that is suitable for increasing in size is achieved. Three or more source lines are provided for each pixel column. Video signals having the same polarity are input to adjacent source lines during one frame period. Dot inversion driving is used to reduce a flicker, crosstalk, or the like.