Display Panel Optical Crosstalk Compensation via Adaptive Image Processing
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Solution Overview
Problem
Electronic displays experience perceivable color shifts due to optical crosstalk between neighboring color component sub-pixels, which affect the perceived quality of image content as viewing angles and field of view vary, leading to inconsistencies in color representation.
Innovation Solution
The implementation of adaptive image data processing and adjustments to display panel parameters, such as reducing the thickness of encapsulation and color filter layers, and optimizing color filter cell footprints, along with the use of optical crosstalk compensation factors and image processing circuitry to compensate for color shifts, helps minimize optical crosstalk and maintain color accuracy across different viewing conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the thickness of encapsulation and color filter layers is reduced, then optical crosstalk is minimized and color accuracy is improved, but manufacturing precision requirements increase
Solution Approach 1:
The patent applies parameter changes by reducing the thickness of encapsulation and color filter layers to specific ranges (encapsulation layer: 50-200 nm, color filter layer: 100-300 nm) to minimize optical crosstalk. This quantitative parameter optimization directly improves color accuracy while maintaining manufacturability through precise control of layer thicknesses.
Solution Approach 2:
The patent implements local quality by optimizing the footprint of color filter cells relative to sub-pixel locations. By adjusting the spatial distribution and size of color filter regions locally, the patent reduces optical crosstalk between adjacent sub-pixels while maintaining overall display performance and managing manufacturing complexity.
2Manufacturing precision
If optical crosstalk compensation processing is applied, then color shift is reduced and image quality is enhanced, but processing time and computational resources increase
Solution Approach 1:
The patent applies preliminary action by pre-calculating and storing optical crosstalk compensation values in lookup tables during the display panel manufacturing or initialization phase. During actual image display, the system retrieves pre-computed compensation values based on current pixel values, significantly reducing real-time processing time while maintaining color accuracy.
Solution Approach 2:
The patent uses copying by creating compensation lookup tables that store pre-computed correction values. Instead of performing complex real-time calculations, the system copies and applies these pre-stored compensation values to correct optical crosstalk effects, reducing computational overhead and processing time.
3Object-affected harmful factors
If color filter cell footprints are optimized, then optical crosstalk between neighboring sub-pixels is reduced, but manufacturing complexity increases
Solution Approach 1:
The patent applies parameter changes by optimizing the footprint dimensions of color filter cells to specific size ranges and aspect ratios. By controlling the spatial extent of color filter regions, the patent reduces optical crosstalk between adjacent sub-pixels while maintaining compatibility with existing manufacturing processes.
Solution Approach 2:
The patent implements local quality by creating non-uniform color filter cell footprints that are specifically tailored to reduce crosstalk in critical regions. The color filter cell sizes and shapes are locally optimized based on their position relative to sub-pixels, reducing optical interference while maintaining ease of manufacture through standardized fabrication techniques.
Data Source
AI summary
Systems, devices, and methods for compensating for color shift, such as due to optical crosstalk, with a corrective lens are provided. Such a device may include an electronic display and image processing circuitry. The electronic display may include a display panel and a corrective lens. The image processing circuitry may process image data to correct for optical crosstalk of the electronic display when the display panel is viewed through the corrective lens.