Display Pixel Layout to Reduce Viewing-Angle Color Deviation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
High-resolution display devices face challenges in arranging electronic components in a narrow area, leading to color deviation issues due to viewing angle variations.
Innovation Solution
A display device design with specific pixel configurations and data/voltage line arrangements, including contact holes and connection patterns, to minimize color deviation by optimizing the spacing and alignment of sub-pixels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If electronic components are arranged in a narrow area to achieve high resolution, then display resolution is improved, but color deviation according to viewing angle increases
Solution Approach 1:
The patent applies local quality by making the distance between third sub-pixels in horizontally adjacent pixels smaller than the distance between third sub-pixels in vertically adjacent pixels. This asymmetric local adjustment compensates for viewing angle effects in different directions, reducing color deviation while maintaining high display resolution.
Solution Approach 2:
The patent changes the spatial parameter (distance) between sub-pixels differently in different directions. Specifically, it reduces the horizontal distance between third sub-pixels compared to the vertical distance, creating an optimized geometric parameter configuration that minimizes color deviation across viewing angles.
2Stability of the object's composition
If contact holes are positioned close to emission areas to reduce color deviation, then color uniformity is improved, but manufacturing precision requirements increase
Solution Approach 1:
The patent positions contact holes locally between specific emission areas (third sub-pixels) of adjacent pixels rather than using a uniform positioning scheme. This localized asymmetric positioning optimizes color uniformity while managing manufacturing precision requirements through strategic placement rather than tight tolerances across all components.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A display device includes first to fourth pixels (Pa, Pb, Pc, Pd), wherein each of the first to fourth pixels includes first to third sub-pixels (SP1, SP2, SP3), a first data connection pattern (DCP1a) electrically connected to a first data line (DL1) by a first contact hole (CNT1a) and electrically connected to the second sub-pixel of the second pixel, and a second data connection pattern (DCP2a) electrically connected to a second data line (DL2) by a second contact hole (CNT1b) and electrically connected to the second sub-pixel of the fourth pixel, wherein, in a plan view, the first contact hole is disposed between the emission area of the third sub-pixel of the first pixel and the emission area of the third sub-pixel of the second pixel, and in a plan view, the first contact hole and the second contact hole are disposed in a row in the second direction.