Cover Plate Anti-Reflection Particle Layout for Star Dot Prevention
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Solution Overview
Problem
The existing manufacturing process for display panels results in inaccurate distribution of anti-reflection particles, leading to light scattering between sub-pixels and the formation of star dots, which reduces the display effect and comprehensive performance of the panel.
Innovation Solution
A cover plate with an anti-reflection layer containing particles that are smaller than sub-pixel units, with varying distribution densities and gaps between them, is designed to ensure particles are accurately positioned within each sub-pixel unit, preventing light scattering between adjacent units. The manufacturing method involves using a positioning screen with openings matching sub-pixel units and spraying anti-reflection particles to form the anti-reflection layer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If particles are prepared in the atomization film without accurate position control, then the manufacturing process is simpler, but the particles will span multiple sub-pixel units causing mixed light scattering and star dots
Solution Approach 1:
The patent divides the cover plate manufacturing process into segmented stages: first forming the atomization film with particles, then adding a positioning layer with light-blocking patterns that correspond to sub-pixel boundaries. This segmentation allows particle distribution to be controlled in stages, improving precision without requiring complete redesign of the entire manufacturing process.
Solution Approach 2:
The patent applies preliminary action by pre-forming the positioning layer with light-blocking patterns before final particle placement. These pre-established patterns serve as guides that constrain particle distribution to specific regions (within sub-pixel units), ensuring accurate positioning is achieved through preparatory structural arrangements rather than complex real-time control.
2Productivity
If particles are allowed to distribute freely in the atomization film, then the manufacturing process is faster and simpler, but the display effect deteriorates due to star dots and color mixing
Solution Approach 1:
The patent introduces a positioning layer as an intermediary element between the atomization film and the final display structure. This intermediate layer contains light-blocking patterns that act as mediators to guide particle distribution, allowing particles to be placed efficiently while ensuring they fall within correct sub-pixel regions, thus maintaining both productivity and display quality.
Solution Approach 2:
The patent applies local quality by creating region-specific light-blocking patterns in the positioning layer that correspond to individual sub-pixel units. Each region has tailored constraints that locally control particle placement, allowing efficient manufacturing while ensuring particles are distributed appropriately in each specific location without compromising overall display quality.
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 solution effectively prevents color mixing and star dots, enhancing the display effect and overall performance of the display panel by ensuring anti-reflection particles are confined within their respective sub-pixel units, thereby improving the panel's comprehensive performance.
Implementation Method 1
particles are arranged in the atomization film, so that the problem of total reflection of light is resisted by the particles
Data Source
AI summary
A cover plate, a manufacturing method of the cover plate, and a display panel are provided. The cover plate covers the display panel and includes a cover plate body and an anti-reflection layer. The anti-reflection layer is provided with anti-reflection particles therein, and an orthographic projection of the anti-reflection particles in the display panel is completely located in a region of each sub-pixel unit. By accurately controlling the distribution position of the particles during the manufacturing process, each particle can completely fall in the corresponding region of each sub-pixel unit, and will not be distributed at a junction position between two adjacent sub-pixel units.