Micro-LED Pixel Assembly for In-Pixel Anti-Aliasing
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Solution Overview
Problem
Existing display technologies, particularly LCD and OLED screens, face challenges in achieving smooth image transitions without increasing computational load or resolution, especially when displaying fine symbols or video images with pixelation issues.
Innovation Solution
A method and device utilizing micro-LED substrates with controlled light-emitting diodes in plano-convex assemblies, employing color filters and intensity gradients to achieve anti-aliasing within pixels, enhancing image smoothness without increasing resolution or computational cost.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If anti-aliasing processing is applied to smooth image transitions, then image quality improves, but computational load increases
Solution Approach 1:
The invention divides each pixel into multiple sub-pixels (e.g., 3x3 grid) that can be independently controlled. This segmentation allows anti-aliasing to be applied at the sub-pixel level, creating smoother transitions without requiring complex computational algorithms to process entire pixels as single units.
Solution Approach 2:
The patent applies different light intensities to different regions within a pixel based on the desired anti-aliasing effect. By varying the intensity of individual sub-pixels locally, the system achieves smooth image transitions at edges and boundaries without increasing the overall computational complexity of the display system.
2Manufacturing precision
If pixel resolution is increased to reduce jaggedness, then image smoothness improves, but device complexity and cost increase
Solution Approach 1:
Instead of increasing horizontal and vertical pixel density, the invention adds a temporal dimension by dynamically controlling the intensity of sub-pixels within each pixel over time. This allows anti-aliasing effects to be achieved through temporal modulation rather than spatial multiplication, avoiding the need for higher pixel density.
Solution Approach 2:
The patent creates virtual sub-pixels through optical scattering structures that replicate and diffuse light from physical LED sources. This optical copying approach allows the system to achieve the effect of higher resolution without physically increasing the number of light-emitting elements, thereby reducing device complexity.
3Manufacturing precision
If more micro-LEDs are placed per pixel to improve anti-aliasing, then image quality improves, but manufacturing complexity increases
Solution Approach 1:
The invention combines multiple micro-LEDs into single pixel assemblies where 9 micro-LEDs (arranged in a 3x3 pattern) work together as one functional pixel unit. This merging approach simplifies the manufacturing process by treating the micro-LED array as an integrated module rather than requiring precise placement of individually controllable LEDs, thereby improving ease of manufacture while maintaining anti-aliasing 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
Improves anti-aliasing by applying intensity gradients within pixels, resulting in a smooth image display with reduced computational load and maintaining existing resolution, particularly effective for fine symbols and video images.
Implementation Method 1
each coloured element being a plano-convex assembly of a plurality of light-emitting diodes
Implementation Method 2
covered by a plate that is common to said diodes of said element and that scatters coloured light associated with said element
Data Source
AI summary
A method is provided of display of a dot-matrix digital image including controlling groups of three coloured elements, each element being of a different colour, each group forming one elementary element of a colour image, and carrying out anti-aliasing processing of the display. Each coloured element is a plano-convex assembly of a plurality of light-emitting diodes, each of the elements in a group being covered by a plate that is common to the diodes of the element and that scatters coloured light associated with the element, the anti-aliasing processing being carried out by applying commands for various light intensities to the light-emitting diodes inside a given element.