Display Pixel Diagonal Groups for Stripe Pattern Prevention
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Solution Overview
Problem
Liquid crystal display apparatuses face challenges in preventing the observation of stripes in diagonal directions due to the uniform polarity of data voltages applied to pixels, which affects display quality, especially when showing red and blue colors together.
Innovation Solution
The display apparatus is designed to vary the polarity of data voltages applied to pixels without changing the arrangement of polarities on data lines, using specific configurations of red, green, blue, and white pixel groups to offset stripe patterns by altering the direction of pixel diagonal groups and applying opposite polarities to adjacent groups.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If uniform polarity of data voltages is applied to pixels, then the data line arrangement is simple, but stripe patterns appear in diagonal directions
Solution Approach 1:
The patent applies different polarity patterns to different regions (color pixel groups) of the display panel. Specifically, first color pixel groups receive data voltages with one polarity while second color pixel groups receive data voltages with opposite polarity, creating local quality variations that prevent stripe patterns while maintaining overall system functionality.
Solution Approach 2:
The patent introduces asymmetric polarity distribution across different color pixel groups arranged in diagonal directions. By making adjacent color pixel groups have opposite polarities rather than uniform polarity, the asymmetric arrangement disrupts the formation of diagonal stripe patterns while keeping the data line structure manageable.
2Object-affected harmful factors
If different polarity patterns are applied to different color pixel groups, then stripe patterns are prevented, but the control complexity increases
Solution Approach 1:
The patent segments the display panel into distinct first color pixel groups and second color pixel groups arranged in diagonal directions. Each segment is assigned a specific polarity pattern, allowing independent control that prevents stripe patterns while organizing complexity into manageable segments rather than requiring complex pixel-by-pixel control.
Solution Approach 2:
The patent inverts the polarity of data voltages applied to adjacent color pixel groups. Instead of using the same polarity for all pixels, the invention systematically applies opposite polarities to alternating color pixel groups, which eliminates stripe patterns through this inverted approach while maintaining a relatively simple control structure.
3Ease of manufacture
If data voltages with same polarity are applied to adjacent color pixels, then manufacturing is simpler, but display quality deteriorates due to visible stripes
Solution Approach 1:
The patent implements local quality variation by applying different polarity patterns to different color pixel groups. First color pixel groups receive data voltages with one polarity while second color pixel groups receive opposite polarity, creating localized differences that prevent stripe patterns and improve display quality while maintaining relatively simple manufacturing 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 solution effectively prevents or minimizes the observation of stripes in diagonal directions, improving display quality by allowing for the simultaneous display of red and blue colors without stripe patterns.
Implementation Method 1
A liquid crystal display forms an electric field in a liquid crystal layer disposed between two substrates
Implementation Method 2
changes an alignment of liquid crystal molecules of the liquid crystal layer to control a transmittance of light incident to the liquid crystal layer
Data Source
AI summary
A display apparatus includes gate lines extending in a first direction, data lines extending in a second direction crossing the first direction, first color pixels, and second color pixels. A first color pixel arranged in an f-th column between an f-th data line and an (f+1)th data line is connected to one of the f-th data line and the (f+1)th data line. A first color pixel arranged in a g-th column between a g-th data line and a (g+1)th data line is connected to one of a (g−1)th data line and a (g+2)th data line. First color pixels in a first color pixel diagonal group receive data voltages having a same polarity.Second color pixels in a second color pixel diagonal group receive data voltages having a same polarity.