Asymmetrical Pixel Circuit Structure for Display Crosstalk Reduction
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Solution Overview
Problem
Conventional electro-optic devices face challenges in ensuring sufficient data update periods and maintaining aperture ratios when dealing with higher resolution and larger screen sizes, particularly in eliminating 3D crosstalk and optimizing pixel circuit configurations.
Innovation Solution
The electro-optic device employs a configuration with alternating columns of pixel areas, each containing either one or two pixel circuits, allowing for independent voltage maintenance and emission control, with specific timing for emission and non-emission periods to optimize data update and aperture ratio.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If linear sequential scanning is used to update pixel voltage during non-emission period, then 3D crosstalk is eliminated, but the data update period becomes insufficient for high resolution and large size screens
Solution Approach 1:
The pixel areas are divided into first and second pixel areas with different pixel circuit configurations. First pixel areas have one pixel circuit for both voltage maintenance and data update, while second pixel areas have two pixel circuits allowing simultaneous voltage maintenance and data update operations. This segmentation enables parallel processing and extends the effective data update period.
Solution Approach 2:
The pixel voltage is maintained in advance during the emission period using the first pixel circuit, preparing the pixel for subsequent data updates in the non-emission period. This preliminary voltage maintenance ensures that the pixel is ready for rapid data updates without compromising display quality or introducing crosstalk.
2Reliability
If two pixel circuits are installed in each pixel to sustain left and right pixel voltages, then 3D crosstalk is eliminated, but the aperture ratio decreases
Solution Approach 1:
Different pixel areas are assigned different functional configurations: first pixel areas use a simplified single-circuit design optimized for light emission area, while second pixel areas use dual-circuit designs optimized for simultaneous voltage maintenance and data updates. This local differentiation maintains high aperture ratios in first pixel areas while achieving the 3D crosstalk elimination function in second pixel areas.
Solution Approach 2:
The display panel is segmented into alternating first and second pixel areas. This segmentation allows the system to achieve 3D crosstalk elimination through the second pixel areas while maintaining high aperture ratios in the first pixel areas, as the first pixel areas constitute a significant portion of the display and use the more efficient single-circuit configuration.
3Measurement precision
If higher resolution and larger screen size are implemented, then display quality is improved, but the data update period becomes insufficient
Solution Approach 1:
The system maintains continuous useful action by overlapping the voltage maintenance period (emission period) with the data update preparation phase. The first pixel circuits maintain voltage continuously during emission, while second pixel circuits prepare for data updates during the same period, ensuring that data updates can proceed rapidly during the non-emission period without interruption or delay.
Solution Approach 2:
Pixel circuits are prepared in advance during the emission period by maintaining pixel voltages and pre-configuring for upcoming data updates. This preliminary preparation ensures that when the non-emission period arrives, the data update process can proceed immediately and efficiently, accommodating high resolution and large screen requirements.
Data Source
AI summary
The electro-optic device includes a plurality of data lines, a plurality of scan lines, a plurality of pixel areas arranged at crossings of the data lines and the scan lines, and light emitting elements, wherein first pixel areas are in alternating columns, each first pixel area including only one pixel circuit configured to cause the light emitting elements to emit light, wherein second pixel areas are in alternating columns between the first pixel areas, each second pixel area including two pixel circuits configured to cause the light emitting elements to emit light, and wherein a writing process is performed on the second pixel areas to cause light emitting elements on the pixel circuits on one side to emit light in a period for causing light emitting elements on the pixel circuits on the other side to emit light.