Display Pixel Via Slit Patterns for Reduced Diffraction Interference
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Solution Overview
Problem
Existing display devices face challenges in improving user visibility due to diffraction interference between neighboring sub-pixels, which affects the overall display quality.
Innovation Solution
The display device incorporates a pixel circuit layer with via layers featuring slit patterns that overlap anode electrodes, where the slit patterns for adjacent pixels differ in shape, size, and position, minimizing diffraction interference by directing light emission in different directions from neighboring sub-pixels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional display devices are used, then manufacturing is simpler, but diffraction interference between neighboring sub-pixels reduces user visibility
Solution Approach 1:
The patent applies asymmetry by designing slit patterns with different shapes, sizes, and orientations for adjacent pixels. Specifically, pixels in the first region have slit patterns with a first orientation while pixels in the second region have slit patterns with a second orientation different from the first. This asymmetric configuration causes light from adjacent pixels to diffract in different directions, reducing diffraction interference and improving visibility.
Solution Approach 2:
The patent implements local quality by assigning different slit pattern characteristics to different regions of the display device. The first region pixels have slit patterns with specific parameters (first orientation, first size) while second region pixels have different parameters (second orientation, second size). This localized differentiation optimizes light emission characteristics for each region, minimizing interference between neighboring pixels while maintaining overall display quality.
2Object-affected harmful factors
If slit patterns with different shapes and positions are used for adjacent pixels, then diffraction interference is minimized, but manufacturing precision requirements increase
Solution Approach 1:
The patent divides the display device into multiple regions (first region and second region) with distinct slit pattern characteristics. Each region can be manufactured with standardized patterns, and the boundaries between regions are clearly defined. This segmentation approach simplifies the manufacturing process compared to requiring every pixel to have uniquely customized patterns, while still achieving the goal of minimizing diffraction interference through regional differentiation.
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 enhances user visibility by reducing diffraction interference, resulting in improved display quality and visibility.
Implementation Method 1
a use of the display device such as a liquid crystal display device and an organic light emitting display device is increasing... improves a diffraction pattern... minimizing diffraction interference by directing light emission in different directions from neighboring sub-pixels
Data Source
AI summary
A display device including a first pixel adjacent to a second pixel, the display device may include a substrate, a pixel circuit layer disposed on the substrate, and a display element layer including a plurality of anode electrodes disposed on the pixel circuit layer, wherein the plurality of anode electrodes include a first anode electrode corresponding to the first pixel and a second anode electrode corresponding to the second pixel. The pixel circuit layer may include a via layer facing the display element layer and including a first slit pattern overlapping the first anode electrode and a second slit pattern overlapping the second anode electrode, the second slit pattern may be different from the first slit pattern in at least one of a shape, a size, and a position.