OLED Display Panel Micro-Lens Layout for Low Crosstalk
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Solution Overview
Problem
Existing OLED display panels suffer from low light utilization rates and significant crosstalk between adjacent sub-pixels due to the alignment of micro-lens structures and color resist sections, which affects the display's color gamut and overall performance.
Innovation Solution
The display panel design includes a base substrate with sub-pixels, a color film layer with non-overlapping micro-lens structures and transmission regions, and color resist sections, where the axes of the micro-lens structures, transmission regions, and sub-pixels are arranged to prevent light from exiting adjacent sub-pixels, enhancing light utilization and reducing crosstalk.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If micro-lens structures and color resist sections are aligned with sub-pixels, then light transmission is maximized, but crosstalk between adjacent sub-pixels increases
Solution Approach 1:
The patent applies asymmetry by deliberately misaligning the micro-lens structures and color resist sections relative to the sub-pixel arrangement. Specifically, the micro-lens structures are positioned with an offset from the sub-pixel centers, and the color resist sections are arranged with different spacing relationships. This asymmetric configuration prevents light from adjacent sub-pixels from being focused onto the wrong sub-pixel, thereby reducing crosstalk while still maintaining adequate light transmission through the optical path.
2Object-generated harmful factors
If micro-lens structures are positioned to reduce crosstalk, then color gamut improves, but light utilization rate decreases
Solution Approach 1:
The patent applies local quality by optimizing the optical properties at different locations within the display panel. The micro-lens structures have varying focal lengths and aperture sizes depending on their position, and the color resist sections have different transmission characteristics. This localized optimization allows regions with higher crosstalk risk to have more aggressive offset configurations, while regions with lower crosstalk risk can maintain better alignment, thereby preserving overall light utilization while effectively reducing crosstalk where needed.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design increases light utilization and mitigates crosstalk, resulting in improved display performance with higher color gamut and enhanced display effects.
Implementation Method 1
each of the micro-lens structures is configured to transmit light emitted by a sub-pixel corresponding to the micro-lens structure
Data Source
AI summary
Provided is a display panel. The display panel includes: a base substrate; a plurality of sub-pixels, disposed on a side of the base substrate; a color film layer, disposed on a side, distal from the base substrate, of the plurality of sub-pixels and including a plurality of color resist sections in one-to-one correspondence to the plurality of sub-pixels; and a plurality of micro-lens structures in one-to-one correspondence to the plurality of sub-pixels, wherein the plurality of micro-lens structures are disposed on a side, distal from the base substrate, of the color film layer, and each of the micro-lens structures is configured to transmit light emitted by a sub-pixel corresponding to the micro-lens structure.