Display Panel Drive Module Sharing for Cost Reduction
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Solution Overview
Problem
The high manufacturing cost of organic light-emitting diode display panels is attributed to the expensive patch processing of metal-oxide-semiconductor field-effect transistors (MOS tubes) used in the drive modules.
Innovation Solution
The display panel design incorporates a plurality of light-emitting units sharing a single drive module, reducing the need for multiple MOS tubes and thereby lowering the manufacturing costs. Each light-emitting unit includes a light-emitting device and a control module connected to data lines and scan lines, with the drive module connected to the power lines, control modules, and light-emitting devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a MOS tube is used as the second transistor in each light-emitting unit to ensure driving stability, then the driving stability is improved, but the manufacturing cost increases due to high patch processing cost
Solution Approach 1:
Multiple light-emitting units share a single drive module, consolidating what would traditionally be separate MOS tubes into one shared component. This merging approach maintains the driving stability function while significantly reducing the total number of MOS tubes required, thereby lowering patch processing costs and manufacturing expenses
Solution Approach 2:
The drive module is designed to serve multiple light-emitting units simultaneously, making it a universal component that performs the driving function for several pixels. This multi-functionality allows a single MOS tube structure to replace what would traditionally require multiple separate MOS tubes, reducing manufacturing complexity and cost
2Reliability
If multiple MOS tubes are used in each light-emitting unit, then the driving stability is ensured, but the patch processing cost increases
Solution Approach 1:
The patent merges the driving functions of multiple light-emitting units into a single drive module, reducing the total number of MOS tubes from multiple per unit to one shared module. This consolidation directly reduces patch processing requirements and associated costs while maintaining the necessary driving stability through the shared MOS tube structure
3Measurement precision
If the area of light-emitting units is reduced, then the resolution is enhanced, but the manufacturing complexity may increase
Solution Approach 1:
By merging multiple light-emitting units under a single drive module, the patent enables tighter packing of pixels, which reduces the overall area per light-emitting unit and thereby enhances resolution. The shared drive module architecture simplifies the manufacturing process despite the increased pixel density, as the same drive module serves multiple units
Data Source
AI summary
A display panel, a method of manufacturing thereof, and an electronic device are provided. The display panel includes: a control module connected to data lines and scan lines corresponding to a corresponding light-emitting unit, a first end of a light-emitting device connected to a first power line corresponding to the corresponding light-emitting unit, and a drive module connected to a second power line corresponding to each light-emitting unit in a corresponding to-be-driven region, the control module in the corresponding to-be-driven region, and a second end of the light-emitting device.