AMOLED Pixel Unit Sharing Data Lines for 8K Resolution
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Solution Overview
Problem
Current high-resolution 8K AMOLED display panels face challenges due to the large number of data lines and external compensation lines, which increase pixel layout space requirements and manufacturing costs, making them rare and expensive to produce.
Innovation Solution
The proposed solution involves a pixel unit with multiple sub-pixel circuits sharing data lines and external compensation lines, reducing the overall number of lines needed, thereby minimizing pixel layout space and production costs while maintaining high resolution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the number of data lines and external compensation lines is increased to achieve high resolution, then the display resolution is improved, but the pixel layout space increases and manufacturing cost increases
Solution Approach 1:
Multiple sub-pixel circuits (first, second, and third sub-pixel circuits) share common data lines and external compensation lines. Specifically, the first and second sub-pixel circuits share the first data line, while the first and third sub-pixel circuits share the first external compensation line. This merging approach reduces the total number of lines required, thereby reducing pixel layout space while maintaining high display resolution.
Solution Approach 2:
The shared data lines and external compensation lines serve multiple sub-pixel circuits simultaneously. The first data line provides data signals to both the first and second sub-pixel circuits, and the first external compensation line provides compensation signals to both the first and third sub-pixel circuits. This multi-functionality reduces the overall line count and associated manufacturing costs.
2Measurement precision
If the number of data lines is increased to achieve high resolution, then the display resolution is improved, but the number of source drivers increases and manufacturing cost increases
Solution Approach 1:
Multiple sub-pixel circuits share common data lines, which reduces the total number of data lines required. Since each data line typically requires a corresponding source driver, reducing the number of data lines directly reduces the number of source drivers needed, thereby simplifying the device complexity and reducing manufacturing costs.
3Measurement precision
If the number of external compensation lines is increased to achieve high resolution, then the display resolution is improved, but the pixel layout space increases
Solution Approach 1:
Multiple sub-pixel circuits share common external compensation lines. The first external compensation line is shared by the first and third sub-pixel circuits, reducing the total number of external compensation lines required. This sharing approach minimizes the space occupied by compensation lines in the pixel layout while maintaining high display resolution.
Data Source
AI summary
A pixel unit includes a first sub-pixel circuit and a second sub-pixel circuit. The first sub-pixel circuit includes a first sub-pixel driving circuit and a first light-emitting element, and the second sub-pixel circuit includes a second sub-pixel driving circuit and a second light-emitting element. The first sub-pixel driving circuit and the second sub-pixel driving circuit are connected to a first data line, and the first sub-pixel driving circuit is connected to a first gate line, the second sub-pixel driving circuit is connected to the second gate line. The first sub-pixel driving circuit is configured to drive the first light-emitting element by a data voltage on the first data line under the control of the first gate line. The second sub-pixel driving circuit is configured to drive the second light-emitting element by the data voltage on the first data line under the control of the second gate line.