Display Panel Sub-Pixel Arrangement for Color Edge Reduction
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Solution Overview
Problem
Current display devices suffer from color edges, particularly at the edges of display panels, due to sub-pixels in the same row or column having only one light-emitting color, which deteriorates the display effect.
Innovation Solution
A display panel with N types of sub-pixels of different light-emitting colors arranged in a repetitive unit, where sub-pixels in each row and column have different colors, and adjacent sub-pixels in a column are mirror-symmetrical, forming pixel units that alleviate the color edge phenomenon by ensuring multiple colors are present at the edges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If sub-pixels in the same row or column are arranged with only one light-emitting color, then the manufacturing process is simplified, but color edges occur at the display panel edges
Solution Approach 1:
The patent applies local quality by making different parts of the sub-pixel arrangement have different color distributions. Specifically, sub-pixels in the same row or column are configured to have different light-emitting colors, while sub-pixels along one diagonal line have identical colors. This local differentiation eliminates color edges at panel edges while maintaining manufacturing feasibility through the systematic diagonal color pattern.
Solution Approach 2:
The patent introduces asymmetry in the sub-pixel color arrangement by breaking the conventional symmetric pattern where sub-pixels in the same row/column share the same color. Instead, adjacent sub-pixels in the same row or column are assigned different colors, creating an asymmetric color distribution that prevents color edge formation while maintaining overall structural symmetry through the diagonal line configuration.
2Object-affected harmful factors
If sub-pixels in the same row or column have different light-emitting colors, then color edge phenomenon is alleviated, but the device complexity increases
Solution Approach 1:
The patent segments the sub-pixel arrangement into distinct diagonal lines, where each diagonal line serves as an independent color reference. By dividing the display panel into these diagonal segments, the complex requirement of having different colors in each row/column is simplified into a manageable pattern where only diagonal relationships need to be maintained, reducing the overall device complexity.
Solution Approach 2:
Instead of organizing sub-pixels by horizontal or vertical color groups (conventional approach), the patent inverts the organization principle by using diagonal lines as the basis for color assignment. This inverted approach simplifies the color distribution logic while achieving the same color edge elimination effect, reducing the perceived complexity of the arrangement system.
3Stability of the object's composition
If N sub-pixels along one diagonal line have identical light-emitting color, then color consistency is improved, but aperture area may be reduced
Solution Approach 1:
The patent transitions from the conventional two-dimensional grid organization (rows and columns) to a three-dimensional diagonal dimension for color assignment. By adding this diagonal dimension, the system achieves color consistency along diagonals while maintaining adequate aperture area through optimized sub-pixel spacing and shape design, effectively resolving the contradiction between color consistency and aperture area.
Data Source
AI summary
A display panel is provided. It has N types of sub-pixels, each type emits a different color of light, here N is a positive integer and N3. The panel includes: a matrix of repetitive units arranged, each unit has N-row & N-column sub-pixels. The N sub-pixels in each row or each column emit light of different colors. For each repetitive unit, the N sub-pixels along one diagonal line emits light of the same color, and at least two of the N sub-pixels along another diagonal line emit light of different colors; two adjacent sub-pixels in the same column form one pixel unit, and have shapes which are mirror-symmetrical to each other.