Pixel Circuit Dual Data Storage for Synchronized Display Updates
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Solution Overview
Problem
Display devices face challenges in maintaining consistent display quality due to varying update times of pixel circuits between frames, leading to potential image errors.
Innovation Solution
A pixel circuit comprising a lighting element, a driving circuit, and two data storage circuits that alternately store and transmit data signals during different frame periods, ensuring synchronized lighting across the display panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single data storage circuit is used per pixel, then the circuit complexity is low, but the update timing between frames becomes inconsistent causing image errors
Solution Approach 1:
The single data storage circuit is segmented into two separate data storage circuits (first and second data storage circuits). Each circuit independently stores data signals for alternating frame periods, ensuring that all pixel circuits update simultaneously every other frame while maintaining low individual circuit complexity.
2Productivity
If data signals are updated continuously in each frame period, then the display refresh rate is high, but the lighting elements cannot maintain consistent brightness due to varying update times
Solution Approach 1:
The pixel circuit employs periodic action by alternating between two data storage circuits in successive frame periods. The first data storage circuit operates in odd frames while the second operates in even frames, creating a periodic update pattern that maintains consistent brightness and color across all lighting elements while achieving effective refresh.
3Reliability
If all pixel circuits update simultaneously, then image errors are prevented, but the circuit design becomes more complex with multiple data storage circuits
Solution Approach 1:
Multiple pixel circuits sharing the same lighting element are merged in their use of data storage circuits. Instead of each pixel having dedicated storage for every frame, adjacent pixel circuits share alternating data storage circuits (first and second), reducing overall circuit complexity while maintaining simultaneous update timing for image accuracy.
Data Source
AI summary
The present disclosure relates to a pixel circuit including a light emitting element, a driving circuit, a first data storage circuit and a second data storage circuit. The driving circuit is electrically coupled to the light emitting element. The first data storage circuit is electrically coupled to the driving circuit, and is configured to transmit a first data signal to the driving circuit during a first frame period, so that the driving circuit drives the light emitting element according to the first data signal. The second data storage circuit is electrically coupled to the driving circuit, and is configured to receive a second data signal during the first frame period.