Display Panel Data Line Reduction via Subpixel Segmentation
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Solution Overview
Problem
The increasing number of data lines in display panels with higher resolution and scanning frequency complicates the manufacturing process and increases costs, making it challenging to maintain display quality.
Innovation Solution
A display panel design where each pixel area is controlled by three adjacent data lines and two adjacent scanning lines, with a base sub-pixel and a matching sub-pixel, reducing the number of data lines by a quarter and simplifying the layout to save costs and improve display resolution and scanning frequency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the number of data lines is increased to achieve higher resolution and scanning frequency, then display quality is improved, but manufacturing process complexity and cost increase
Solution Approach 1:
The pixel array is divided into base sub-pixels and matching sub-pixels. Each pixel area includes three base unit pixels (R, G, B) and one matching sub-pixel (W or Y), with the matching sub-pixel sharing data lines with base unit pixels. This segmentation allows reduction of data lines while maintaining display quality through selective activation of sub-pixels.
Solution Approach 2:
The matching sub-pixel is designed to share data lines with base unit pixels, making the data lines serve multiple functions. A single data line can control both base unit pixels and matching sub-pixels, reducing the total number of data lines required while maintaining the ability to display high-quality images with enhanced brightness and color accuracy.
2Manufacturing precision
If the number of data lines is increased to achieve higher resolution, then display resolution is improved, but the number of chips on film increases and costs increase
Solution Approach 1:
Multiple sub-pixels (base unit pixels and matching sub-pixels) are merged to share common data lines. The matching sub-pixel is positioned to share data lines with adjacent base unit pixels, consolidating the number of required data lines and reducing the number of chips on film needed to drive the display.
3Speed
If the number of data lines is increased to achieve higher scanning frequency, then display performance is improved, but manufacturing cost increases
Solution Approach 1:
The pixel array is segmented into base sub-pixels and matching sub-pixels that can be selectively activated. This segmentation enables efficient scanning by allowing the display controller to update only necessary sub-pixels at high frequencies, achieving high scanning frequency performance without requiring proportionally more data lines, thus controlling manufacturing costs.
Data Source
AI summary
A display panel includes scanning lines, data lines, and pixel areas. A plurality of the scanning lines are parallelly disposed along a first direction of the display panel. A plurality of the data lines are parallelly disposed along a second direction of the display panel. Each pixel area is controlled by three adjacent data lines and two adjacent scanning lines to display. Each pixel area includes a base sub-pixel and a matching sub-pixel. The base sub-pixel includes three base unit pixels, and the scanning lines corresponding to each pixel area include a first scanning line and a second scanning line. The first scanning line is coupled with the three base unit pixels, and the second scanning line is coupled with the matching sub-pixel. The matching sub-pixel shares one data line with at least one base unit pixel.