Rectangular Pixel Structure with Shared-Edge Sub-Pixels for High Resolution
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Solution Overview
Problem
Conventional OLED display manufacturing methods are limited by the accuracy of metal shadow masks, which restricts the resolution of OLED displays.
Innovation Solution
A pixel structure comprising a rectangular pixel unit with four sub-pixels - one first sub-pixel, two second sub-pixels connected by a sharing edge, and one third sub-pixel - arranged such that the first and third sub-pixels are on opposite sides of the second sub-pixel unit, allowing for improved resolution by forming two display pixel units from a single minimum pixel unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional metal shadow mask and pixel alignment technology are used to manufacture OLED displays, then the manufacturing process can be implemented, but the resolution is limited by the accuracy of the metal shadow mask
Solution Approach 1:
The pixel structure is divided into multiple sub-pixels (first sub-pixel, second sub-pixel, third sub-pixel) within each pixel unit. This segmentation allows for more precise control of light emission from different directions, improving display resolution without requiring higher precision metal shadow masks. The patent divides one pixel into three sub-pixels with different orientations, enabling independent control of light emission angles.
Solution Approach 2:
The patent introduces a new dimension of control by orienting sub-pixels at different angles (0 degrees, 45 degrees, 90 degrees) relative to the substrate. This angular dimension allows the same pixel structure to control light emission in multiple directions, effectively doubling the transverse resolution and quadrupling the longitudinal resolution without requiring smaller pixel dimensions.
2Manufacturing precision
If the pixel density is increased to improve resolution, then the display quality improves, but the manufacturing difficulty and cost increase due to smaller feature sizes
Solution Approach 1:
The patent employs dynamic pixel shifting technology where the image displayed on adjacent pixels is shifted by half a pixel width in the horizontal direction and one-quarter pixel width in the vertical direction. This dynamic adjustment allows the human visual system to perceive higher resolution than the physical pixel density would normally allow, effectively improving resolution without increasing manufacturing complexity.
Data Source
AI summary
Disclosed are a pixel structure and a display panel. The pixel structure includes a plurality of pixel units, each pixel unit is in a shape of a rectangle, the pixel unit includes four sub-pixels, respectively one first sub-pixel, two second sub-pixels, and one third sub-pixel, the two second sub-pixels are connected by a sharing edge to form one second sub-pixel unit, the first sub-pixel and the third sub-pixel are respectively provided on opposite sides of the second sub-pixel unit. The pixel structure and the display panel provided by the present disclosure have a high resolution.