Light-Emitting Pixel Layout to Prevent Color Emergence
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Solution Overview
Problem
Current light emitting display devices face challenges in preventing color emergence phenomena and achieving high resolution due to the adjacency of light emitting regions of the same color, which affects the perceived resolution and display quality.
Innovation Solution
The light emitting display device employs a 2×2 matrix arrangement of unit pixels with light emitting regions of three primary colors arranged in diagonal directions to form a rhombus shape, utilizing a laser drilling process for electrical connections, preventing adjacent same-color light emitting regions and enhancing resolution by ensuring proper spacing for the laser drilling process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If light emitting regions of the same color are arranged adjacently to simplify manufacturing, then manufacturing process is easier, but color emergence phenomenon occurs and resolution deteriorates
Solution Approach 1:
The display panel is divided into multiple sub-pixels of different colors (red, green, blue) within each pixel unit. This segmentation prevents same-color light emitting regions from being adjacent, thereby eliminating the color emergence phenomenon while maintaining manufacturability through standardized sub-pixel structures.
Solution Approach 2:
The patent employs asymmetric arrangement of different colored sub-pixels in a specific pattern where same-color regions are deliberately separated by different-color regions. This asymmetric configuration prevents the formation of large same-color areas that cause color emergence, while still allowing efficient manufacturing processes.
2Reliability
If space is allocated for laser drilling process in the center of pixel group, then electrical connection is enabled, but pixel area is reduced
Solution Approach 1:
The laser drilling access point is positioned at the boundary between adjacent pixel groups rather than in the center of each pixel group. This dimensional repositioning allows the electrical connection function to be achieved without sacrificing the active display area of individual pixels, as the drilling location is shared between adjacent pixels.
Solution Approach 2:
The patent merges the electrical connection function with the pixel boundary structure. By positioning the laser drilling point at the shared boundary between adjacent pixel groups, the same structural feature serves both as a separation element for different colors and as an access point for electrical connection, eliminating the need for dedicated center-space allocation.
3Manufacturing precision
If high-resolution arrangement is implemented by preventing same-color adjacency, then display quality improves, but manufacturing complexity increases
Solution Approach 1:
The patent applies local quality variation by assigning different colors to different sub-pixel positions within each pixel unit. This local differentiation of color properties prevents same-color adjacency and enables high-resolution display, while the regular repeating pattern maintains manufacturing simplicity through standardization.
Solution Approach 2:
The display employs a periodic arrangement of colored sub-pixels that repeats across the entire panel. This periodic pattern of RGB or similar color sequences creates the desired high-resolution effect by preventing same-color adjacency, while the regularity of the pattern simplifies manufacturing through repetitive production processes.
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 configuration effectively prevents color emergence phenomena and improves display resolution by ensuring that light emitting regions of the same color are not adjacent, resulting in a higher quality display.
Implementation Method 1
a position where a laser drilling process is performed in a center portion of the unit pixel group may be formed
Data Source
AI summary
A light emitting display device includes a unit pixel group including first, second, third, and fourth unit pixels arranged in a 2×2 matrix, and each of the first, second, third, and fourth unit pixel includes a first light emitting region, a second light emitting region, and a third light emitting region that emit lights of three primary colors, respectively, wherein the first, second, and third light emitting regions of the first light emitting region are sequentially in a first diagonal direction, the first, second, third, and fourth light emitting regions of the second unit pixel are sequentially arranged in a second diagonal direction, and the first, second, and third light emitting regions of the third unit pixel are sequentially arranged in a third diagonal direction, and the first, second, and third light emitting regions of the fourth unit pixel are sequentially arranged in a four diagonal direction.