Display Panel Signal Line Reduction via Shared Subpixel Nodes
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current display panels face challenges in achieving high-resolution designs due to the complexity of the structure, which is exacerbated by the large number of signal lines required.
Innovation Solution
The proposed display panel design reduces the number of signal lines by allowing at least two subpixels to share a first node, with each subpixel comprising a first circuit and a second circuit controlled by separate control lines. This sharing of nodes and circuits reduces the overall number of control lines needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If each subpixel is equipped with independent control lines, then the control precision of each subpixel is improved, but the number of signal lines increases
Solution Approach 1:
The patent merges control functions by allowing multiple subpixels to share common control lines. Specifically, multiple subpixels share a first control line for emitting light and a second control line for resetting, reducing the total number of control lines while maintaining individual subpixel control through shared circuit nodes.
Solution Approach 2:
The patent implements multi-functionality by designing control lines that serve multiple subpixels simultaneously. The first control line functions as an emission control for multiple subpixels, and the second control line serves as a reset control for multiple subpixels, making the control system more universal and efficient.
2Device complexity
If the number of signal lines is reduced, then the structure complexity is decreased, but the control capability of each subpixel may be compromised
Solution Approach 1:
The patent segments the control function into two distinct phases: emission control (first control line) and reset control (second control line). This segmentation allows multiple subpixels to be controlled independently through shared lines, reducing structural complexity while maintaining full control capability for each subpixel.
Solution Approach 2:
The patent introduces a temporal dimension to control by using different control lines for different time phases (emission phase vs. reset phase). This allows the same physical control lines to control multiple subpixels at different times, reducing the number of simultaneous control lines needed while maintaining full control capability.
Data Source
AI summary
Provided is a display panel. The display panel includes: a substrate; a plurality of first control lines and a plurality of second control lines on a side of the substrate; and a plurality of subpixels arranged in an array on the side of the substrate, wherein at least two of the plurality of subpixels share a first node; wherein the subpixel includes a first circuit and a second circuit, the first circuit and the second circuit being configured to control a voltage at the first node in response to a first control signal and a second control signal; wherein in the display panel, a sum of a number of the plurality of first control lines and a number of the plurality of second control lines is less than or equal to a number of the subpixels in a column direction.