Horizontal Pixel Structure Reduces Data Lines in LCD
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Solution Overview
Problem
The existing LCD configurations with a gate-IC-less structure suffer from horizontal line defects due to the arrangement of data lines and color filters, leading to deteriorated display quality.
Innovation Solution
A display device with a horizontal pixel structure where three pixels are successively arranged in the direction of data lines, each connected to three gate lines and alternately connected to adjacent data lines, and color filters are arranged in a repeating pattern to reduce the number of data lines and gate lines, improving productivity and display quality by minimizing horizontal line defects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If three pixels are successively arranged in the direction of data lines to reduce the number of data lines, then the number of data driving chips is reduced and productivity is improved, but horizontal line defects occur and display quality deteriorates
Solution Approach 1:
The pixel structure is segmented into multiple sub-pixels (first pixel, second pixel, third pixel) arranged in the data line direction, with each sub-pixel having different color filters. This segmentation allows reduction of data lines while maintaining display quality through careful design of the segmented structure.
Solution Approach 2:
Different color filters are assigned to different sub-pixels within the same pixel structure. The first pixel has a first color filter, the second pixel has a second color filter, and the third pixel has a third color filter, creating local variation in color properties to eliminate horizontal line defects.
2Reliability
If color filters are arranged in a repeating pattern to minimize horizontal line defects, then display quality is improved, but the complexity of the pixel structure increases
Solution Approach 1:
The pixel structure serves multiple functions simultaneously: it displays different colors through repeated color filter arrangements, reduces data line requirements, and eliminates horizontal line defects. This multi-functionality justifies the structural complexity by achieving multiple objectives with a single design.
Solution Approach 2:
The color filter arrangement utilizes the spatial dimension within the pixel structure to encode color information. By arranging color filters in a repeating pattern across different sub-pixels, the system leverages spatial distribution to achieve color display while reducing data line requirements.
Data Source
AI summary
In a display device, gate lines, which extend in a first direction, cross and are insulated from data lines, which extend in a second direction, to define pixel areas on a first base substrate. Pixels are arranged in the pixel areas, respectively, and a color filter layer including a plurality of color filter is arranged on a second base substrate that is coupled with the first base substrate. The color filters include a first sub color filter, a second sub color filter, and a third sub color filter, repeatedly arranged in the first direction and the second direction to represent different colors, respectively.