Display Sub-Pixel Arrangement for Aperture Ratio and Resolution
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Solution Overview
Problem
In display devices, displacement between substrates leads to color mixing and a reduced aperture ratio, especially as pixel size decreases with increasing resolution, making it challenging to maintain high resolution and aperture ratio simultaneously.
Innovation Solution
The configuration of a liquid crystal display device with a specific arrangement of sub-pixels and switching elements, where sub-pixels of different colors are arranged to optimize aperture ratio without reducing effective resolution, and the use of a light-shielding layer positioned to minimize displacement effects across the substrate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If pixel size is reduced to achieve higher resolution, then resolution is improved, but aperture ratio is reduced due to increased proportion of signal lines and light-shielding layer
Solution Approach 1:
The patent arranges sub-pixels in a non-traditional spatial configuration where first and second sub-pixels of different colors are positioned in the same column line rather than adjacent columns. This dimensional reorganization allows for reduced pixel size while maintaining aperture ratio by optimizing the layout of color filters and light-shielding layers across different spatial dimensions.
Solution Approach 2:
The patent applies different structural configurations to different regions of the display. Specifically, the light-shielding layer is positioned to cover signal lines while color filters are selectively arranged for first and second sub-pixels in the same column, creating locally optimized structures that maintain high aperture ratio in critical areas while achieving high resolution overall.
2Ease of manufacture
If substrate bonding displacement occurs, then manufacturing is simplified, but color mixing occurs and aperture ratio is reduced
Solution Approach 1:
The patent designs the light-shielding layer and color filter arrangement to preemptively compensate for potential substrate bonding displacement. By positioning the light-shielding layer to cover signal lines and arranging color filters with specific spacing and alignment, the structure pre-counters displacement effects, preventing color mixing even when bonding occurs with some displacement.
Solution Approach 2:
The light-shielding layer serves as an intermediary element between the signal lines and the color filters. It is strategically positioned to minimize the impact of displacement by covering the signal lines and creating a buffer zone, thereby preventing direct interaction between displaced components that would cause color mixing.
Data Source
AI summary
According to one embodiment, a display device comprises a first substrate, the first substrate includes a gate line, first to third source lines, a first pixel electrode located between the first source line and the second source line and electrically connected with a first switching element, a second pixel electrode located between the first source line and the second source line and electrically connected with a second switching element, and a third pixel electrode intersecting the gate line, adjacent to the first pixel electrode and the second pixel electrode to sandwich the second source line and the third source line, and electrically connected with a third switching element.