Array Substrate with Alternating Sub-Pixel Electrodes for Head Shaking Stripes
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Solution Overview
Problem
Liquid crystal display panels with DLS architecture suffer from 'head shaking stripes' due to continuous brightness changes, which are imperceptible under static conditions but become noticeable during dynamic viewing or when the viewer shakes their head, causing light or dark areas to superimpose and form grid patterns.
Innovation Solution
The array substrate design includes scanning lines and data lines arranged at intersecting directions, with pixel units comprising first and second sub-pixel electrodes connected to the same data lines, where the electrodes are alternately arranged and connected to scanning lines at different levels, reducing connection types and brightness differences between sub-pixels, and employing two-point inversion and frame inversion driving modes to stabilize display quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If DLS architecture is used to reduce the number of data lines, then the number of source driver chips and production costs are reduced, but brightness differences between sub-pixels occur causing head shaking stripes
Solution Approach 1:
The pixel electrodes are divided into first and second sub-pixel electrodes within each pixel unit, with different connection configurations to different scanning lines. This segmentation allows independent control and compensation of brightness for each sub-pixel electrode, enabling reduction of head shaking stripes while maintaining DLS architecture.
Solution Approach 2:
Different pixel units are configured with different connection types (first, second, third, or fourth connection type) based on their local position in the display panel. This local quality approach compensates for position-dependent brightness differences, particularly addressing the head shaking stripe phenomenon in specific regions while maintaining overall brightness uniformity.
2Manufacturing precision
If multiple pixel connection types are used to compensate brightness differences, then head shaking stripes are reduced, but device structure and manufacturing complexity increase
Solution Approach 1:
The patent defines four universal connection types that can be applied to different pixel units based on their position. Each connection type represents a standardized configuration pattern that can be systematically deployed across the display panel, making the complexity manageable through classification and standardization rather than arbitrary design.
Solution Approach 2:
Adjacent pixel units with the same connection type are grouped together, and their characteristics are analyzed collectively. This merging approach allows systematic compensation strategies to be applied to groups of pixels rather than individually, reducing the overall complexity of the compensation system while maintaining brightness uniformity.
Data Source
AI summary
The present application discloses an array substrate, a liquid crystal display panel, and a display device. Each pixel unit includes a first sub-pixel electrode and a second sub-pixel electrode electrically connected to a same data line. In each row of pixel units, the first sub-pixel electrode and the second sub-pixel electrode are arranged alternately. The first sub-pixel electrode is connected with a scanning line at an upper level and adjacent to a row where the pixel unit is located, and the second sub-pixel electrode is connected with a scanning line at a lower level and adjacent to a row where the pixel unit is located.