Shared Sub-pixel Structure for High PPI Display Panels
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Solution Overview
Problem
Existing display panels face challenges in achieving high Pixel Per Inch (PPI) while maintaining transmittance and reducing the number of data lines and scanning lines, which increases costs and affects display quality.
Innovation Solution
A pixel structure where adjacent sub-pixels are shared to form virtual pixel dots, allowing for a higher PPI without increasing the physical number of sub-pixels, by rearranging sub-pixels in various patterns and using a signal driver to control luminance and sharing of sub-pixels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the Pixel Per Inch (PPI) is improved to display pictures better, then the display quality is enhanced, but the transmittance of the display panel is greatly lowered
Solution Approach 1:
The patent merges adjacent sub-pixels (red, green, and blue) to form a shared pixel structure where multiple sub-pixels contribute to forming a single visible pixel dot. This combining approach allows the display to achieve high PPI by sharing sub-pixels across adjacent pixel locations, thereby reducing the total number of physical sub-pixels needed while maintaining or improving display quality and transmittance.
2Measurement precision
If the Pixel Per Inch (PPI) is improved to display pictures better, then the display quality is enhanced, but the number of data lines and scanning lines increases, leading to higher cost
Solution Approach 1:
The patent combines multiple sub-pixels into shared pixel structures, which reduces the total number of independent pixel elements that require dedicated data and scanning lines. By merging adjacent sub-pixels to form shared pixels, the display panel can achieve high PPI with fewer data lines and scanning lines, thereby reducing manufacturing complexity and cost.
3Device complexity
If the number of physical sub-pixels is reduced to lower cost and increase efficiency, then the manufacturing complexity is lowered, but the display quality may be affected
Solution Approach 1:
The patent implements multi-functionality by designing pixel structures where each sub-pixel serves multiple purposes. Adjacent sub-pixels are shared to form multiple pixel dots, allowing a single sub-pixel to contribute to the display of multiple pixels simultaneously. This universal approach enables the display to maintain high quality with fewer physical sub-pixels, as each sub-pixel performs multiple display functions.
Data Source
AI summary
A pixel structure including a pixel array is disclosed. The pixel array includes a plurality of pixels, each including a first sub-pixel, a second sub-pixel, and a third sub-pixel. The pixel array also includes a plurality of pixel dots, each including a plurality of sub-pixels from two adjacent rows of sub-pixels in the pixel array, wherein any two of the adjacent rows of sub-pixels in the pixel array are shared by each other. A first pixel dot includes a first sub-pixel and a plurality of surrounding sub-pixels adjacent to the first sub-pixel, wherein at least one or more of the surrounding sub-pixels and the first sub-pixel are shared by each other. In addition, the first pixel dot includes at least four sub-pixels including at least one first sub-pixel, one second sub-pixel, and one third sub-pixel.