Pixel Circuit 6T2C Design for Display Integration
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Solution Overview
Problem
Conventional display devices face challenges with integration and high power consumption due to the large number of transistors in pixel circuits, which complicates operations like initialization, threshold voltage compensation, and data writing.
Innovation Solution
A pixel circuit design incorporating 6 transistors and 2 capacitors, with specific configurations and operations during initialization, threshold voltage compensation, and data writing periods, allowing for efficient light emission while simplifying the configuration and reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional pixel circuits are designed to perform initialization, threshold voltage compensation, and data writing operations, then the circuit functionality is improved, but the number of transistors increases leading to higher device complexity and power consumption
Solution Approach 1:
The pixel circuit employs a unified transistor structure that performs multiple functions including initialization, threshold voltage compensation, and data writing operations. The same transistor configuration is used across different operating phases, eliminating the need for separate dedicated circuits for each function and thereby reducing overall device complexity while maintaining full functionality
2Adaptability or versatility
If conventional pixel circuits include a large number of transistors to perform multiple operations, then operational completeness is improved, but integration difficulty increases
Solution Approach 1:
The invention merges multiple operational functions into a single integrated pixel circuit design with a standardized transistor configuration. By combining initialization, threshold voltage compensation, and data writing capabilities into one unified structure, the circuit achieves operational completeness while significantly improving ease of manufacture and integration into display panels
3Adaptability or versatility
If conventional pixel circuits use many transistors for complete operation, then functional capability is improved, but power consumption increases
Solution Approach 1:
The pixel circuit uses a universal transistor configuration that executes multiple functions including initialization, threshold voltage compensation, and data writing. This multi-functional approach eliminates redundant transistor instances, reducing the total transistor count and thereby lowering static and dynamic power consumption while preserving complete operational capability
Data Source
AI summary
A pixel circuit is disclosed that includes first through sixth transistors, first and second capacitors, and a light emitting element. A gate electrode of the second transistor receives a first gate signal. A gate electrode of the third transistor receive a second gate signal. Gate electrodes of each of the fourth and fifth transistors receive a third gate signal. A gate electrode of the sixth transistor receives an emission signal. First electrodes of the first transistor and the first capacitor each receive a first power supply voltage. A cathode electrode of the light emitting element receives a second power supply voltage. A first electrode of the fourth transistor receives an initialization voltage.