Active Matrix Display Data Line Reduction via Pixel Segmentation
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Solution Overview
Problem
Active matrix type liquid crystal display devices have high fabrication costs due to the large number of data lines required, which increases the number of expensive data driving integrated circuits needed.
Innovation Solution
The design reduces the number of data lines by connecting multiple pixel cells of different colors to a single data line, allowing fewer data driving integrated circuits while increasing the number of gate lines and gate driving integrated circuits, thereby reducing overall fabrication costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the number of data lines is increased to provide more pixel cells, then the display resolution is improved, but the fabrication cost is increased due to more expensive data driving integrated circuits
Solution Approach 1:
The invention segments the driving circuitry into two independent parts: a data driving integrated circuit that drives multiple data lines in parallel, and a gate driving integrated circuit that drives multiple gate lines in parallel. This segmentation allows the expensive data driving functionality to be shared across multiple data lines, reducing the per-line cost while maintaining high resolution through the combined parallel capability of both driving circuits working together.
2Adaptability or versatility
If the number of data driving integrated circuits is increased to drive more data lines, then more pixel cells can be controlled, but the total fabrication cost increases
Solution Approach 1:
The invention merges the driving functions by connecting multiple gate lines to a single gate driving integrated circuit and multiple data lines to a single data driving integrated circuit. This merging reduces the total number of expensive data driving integrated circuits needed while the parallel architecture of both driving circuits together maintains the capability to control a large number of pixel cells.
Solution Approach 2:
The gate driving integrated circuit is designed with multi-functionality to drive multiple gate lines simultaneously, and the data driving integrated circuit similarly drives multiple data lines. This universal design allows a single data driving integrated circuit to serve multiple data lines, reducing the overall count of expensive components while maintaining full control over all pixel cells through coordinated operation.
Data Source
AI summary
An active matrix type display device is disclosed, to reduce a fabrication cost, which comprises first to third gate lines arranged at one direction; first and second data lines arranged orthogonally to the first to third gate lines; a first pixel cell connected to the first gate line and the first data line; a second pixel cell connected to the first gate line and the second data line; a third pixel cell connected to the second gate line and the first data line; a fourth pixel cell connected to the second gate line and the second data line; a fifth pixel cell connected to the third gate line and the first data line; and a sixth pixel cell connected to the third gate line and the second data line, wherein the three predetermined pixel cells of displaying the different colors among the first to sixth pixel cells constitute a first unit pixel for displaying a first unit image; and the three other pixel cells except the pixel cells included in the first unit pixel constitute a second unit pixel for displaying a second unit image.