Dual Data Lines for Display Device Charging Time
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Solution Overview
Problem
As the resolution and number of pixels in display devices increase, the charging time for data lines decreases, leading to manufacturing cost increases due to larger data driving parts and increased complexity.
Innovation Solution
A display device design incorporating dual data lines that alternate sub-pixels between left and right data lines, allowing for sufficient charging time and reducing the size and number of the data driving unit, thereby minimizing manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the number of pixels is increased to improve resolution, then the display quality is improved, but the charging time for data lines decreases and the data driving part size increases
Solution Approach 1:
The patent divides the data line into multiple segments by introducing dual data lines (first and second data lines) that alternately supply data voltages to adjacent sub-pixels. This segmentation allows each data line to serve fewer pixels, thereby increasing the charging time for each data line while maintaining high overall resolution through the combined output of both lines.
2Manufacturing precision
If the number of pixels is increased to improve resolution, then the display quality is improved, but the data driving part size and manufacturing costs increase
Solution Approach 1:
The patent implements a multi-functional data driving structure where a single data driving unit controls both the first and second data lines. The data driving unit generates data voltages that are distributed through multiple data lines to alternating sub-pixels, allowing one driving unit to serve the function of what would traditionally require multiple driving units, thereby reducing the overall size and manufacturing cost.
Data Source
AI summary
A display device includes a gate line extending in a first direction, a left data line and a right data line extending in a second direction and crossing the gate line, and a plurality of sub-pixels arranged along the first and second directions, wherein the sub-pixels of a pixel row of the first direction are connected to a same gate line, and the sub-pixels of a pixel row of the second direction are alternately connected to the left data line and the right data line.