Display Panel Pixel-Age Compensation for Viewing-Angle Control
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Solution Overview
Problem
The difference in deterioration levels between viewing angle control pixels and normal pixels in display panels leads to degraded display quality due to varying stress accumulation, which existing technologies have not effectively addressed.
Innovation Solution
A display apparatus that manages stress accumulation and deterioration compensation separately for viewing angle control and normal pixels using a subpixel renderer and afterimage compensator to accumulate and compensate image data based on pixel-specific ages, enhancing display quality by improving accuracy in determining and addressing pixel deterioration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If viewing angle control pixels and normal pixels are treated uniformly in deterioration compensation, then the compensation process is simple, but display quality deteriorates due to unequal stress accumulation
Solution Approach 1:
The patent divides the pixel array into viewing angle control pixels and normal pixels, applying separate stress accumulation and deterioration compensation processes to each pixel type. This segmentation allows tailored compensation strategies that address the different operational characteristics and stress patterns of each pixel type, thereby maintaining display quality while managing the increased process complexity through structured organization.
Solution Approach 2:
The patent implements local quality by applying different deterioration compensation parameters and methods to viewing angle control pixels versus normal pixels. Each pixel type receives customized compensation based on its specific stress accumulation characteristics, ensuring optimal display quality for each region while acknowledging the resulting complexity in the overall compensation process.
2Reliability
If separate stress accumulation management is implemented for different pixel types, then display quality is maintained, but the control system becomes more complex
Solution Approach 1:
The control system is segmented into separate modules for managing stress accumulation and deterioration compensation for viewing angle control pixels and normal pixels. This modular approach organizes the increased complexity into manageable sections, each handling specific pixel types with dedicated parameters and processing logic, thereby maintaining display quality while reducing the cognitive load on the control system.
Solution Approach 2:
The patent implements dynamic adjustment of compensation parameters based on real-time stress accumulation data for each pixel type. The system adaptively modifies deterioration compensation settings according to the operational state and stress levels of viewing angle control pixels versus normal pixels, allowing the control system to manage complexity through intelligent adaptation rather than rigid fixed parameters.
3Ease of operation
If uniform deterioration compensation is applied to all pixels, then the compensation process is simple, but viewing angle control functionality is compromised
Solution Approach 1:
The patent segments the compensation process into distinct pathways for viewing angle control pixels and normal pixels, ensuring that viewing angle control functionality is preserved while maintaining overall system simplicity. Each pixel type follows its own compensation trajectory, preventing the compromise of private mode functionality that would result from uniform treatment.
Solution Approach 2:
The patent applies local quality by providing customized deterioration compensation for viewing angle control pixels that preserves their optical characteristics and viewing angle control capability. This localized approach ensures that the simplicity of the overall compensation process is maintained while the specific needs of viewing angle control pixels are addressed to prevent functionality compromise.
Data Source
AI summary
A display apparatus including: a display panel including a viewing angle control pixel and a normal pixel; a data driver configured to output a data voltage to the display panel; and a driving controller configured to control the data driver, wherein the driving controller includes: a subpixel renderer configured to render input image data to the viewing angle control pixel and the normal pixel according to an operation mode; and an afterimage compensator configured to accumulate a first stress corresponding to the viewing angle control pixel to generate a first age of the viewing angle control pixel, accumulate a second stress corresponding to the normal pixel to generate a second age of the normal pixel, compensate data for the viewing angle control pixel based on the first age and compensate data for the normal pixel based on the second age.