OLED Display Cross-Talk Compensation for Color Shift Control
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Solution Overview
Problem
Electronic displays experience perceivable color shifts due to optical cross-talk between neighboring color component sub-pixels, which affect the perceived quality of image content, especially when viewed from different angles or with varying pupil sizes and positions.
Innovation Solution
The implementation of adaptive image processing techniques and adjustments to display panel parameters, such as reducing the thickness of encapsulation and color filter layers, and non-uniformly adjusting color filter cell footprints, along with the use of optical cross-talk compensation factor maps, to minimize the distance light travels and optimize light emission paths, thereby reducing color shift.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the thickness of encapsulation and color filter layers is reduced, then optical cross-talk is minimized and color shift is reduced, but manufacturing precision requirements increase
Solution Approach 1:
The patent applies parameter changes by reducing the thickness of encapsulation and color filter layers to minimize optical cross-talk. This directly addresses the contradiction by changing physical dimensions to reduce harmful optical effects while accepting increased manufacturing precision requirements.
Solution Approach 2:
The patent implements preliminary anti-action through optical cross-talk compensation techniques that pre-correct for potential color shifts. By applying compensation algorithms before display, the system anticipates and counteracts the effects of optical cross-talk, allowing thinner layers to be used without compromising color accuracy.
2Stability of the object's composition
If color filter cell footprints are non-uniformly adjusted, then color representation consistency is improved, but device complexity increases
Solution Approach 1:
The patent applies local quality by non-uniformly adjusting color filter cell footprints based on their specific positions within the display panel. Different regions receive different footprint optimizations tailored to their local optical characteristics, improving overall color consistency while managing the complexity through targeted rather than universal modifications.
3Measurement precision
If adaptive image processing techniques are implemented, then color shift compensation is enhanced, but processing time increases
Solution Approach 1:
The patent implements preliminary action by pre-calculating and storing optical cross-talk compensation factor maps during the manufacturing process. These pre-computed compensation values are then applied during display operation without requiring real-time complex calculations, thus enhancing color accuracy while minimizing additional processing time during actual use.
Data Source
AI summary
Techniques for implementing and/or operating an electronic device that includes or utilizes a display panel. The display panel includes an organic light-emitting diode layer, an encapsulation layer disposed over the organic light-emitting diode layer, and a color filter layer disposed over the encapsulation layer. The color filter layer overhangs the organic light-emitting diode layer and comprises a first color filter cell of a first color component sub-pixel that at least partially overlaps an organic light-emitting diode of a second color component sub-pixel that is a different color compared to the first color component sub-pixel.