OLED Subpixel Control for High Resolution
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The miniaturization of OLED display devices is restrained by the use of shadow masks in manufacturing, limiting the resolution of OLED display devices, and existing techniques for improving resolution are not sufficient to meet the demand for high-resolution displays.
Innovation Solution
A display system and method that involves a computing device processing sub-pixel values to generate updated sub-pixel values for a display device, allowing a normal-resolution display device to display high-resolution images by selecting and averaging sub-pixel values of the same color that are spatially close to each other, thereby reducing the number of required sub-pixel structures without proportionally increasing the number of transistors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If shadow masks are used in manufacturing OLED display devices, then color saturation capability is improved, but resolution is limited
Solution Approach 1:
The patent divides each pixel into multiple sub-pixels (e.g., 2x2 grid) that can be independently controlled. This segmentation allows the display to achieve higher resolution by treating sub-pixels as independent controllable units, effectively overcoming the resolution limitation imposed by shadow masks while maintaining color saturation through coordinated control of the segmented sub-pixels.
Solution Approach 2:
The patent introduces temporal dimension control by switching between different sub-pixels within a pixel structure over time. By sequentially activating different sub-pixels in a pixel group, the system achieves high-resolution display without requiring physical miniaturization, thus resolving the contradiction between resolution and manufacturing constraints imposed by shadow masks.
2Device complexity
If the number of sub-pixel structures is reduced, then manufacturing complexity is decreased, but display resolution deteriorates
Solution Approach 1:
The patent implements dynamic control of sub-pixels by sequentially activating different sub-pixels within a pixel group based on temporal signals. This dynamic switching allows the display to achieve high-resolution images using fewer physical sub-pixel structures, as the same physical pixels can represent multiple logical pixels at different time steps, thus reducing manufacturing complexity while maintaining display resolution.
Solution Approach 2:
The patent employs periodic temporal signals to control the switching of sub-pixels. By using periodic activation patterns, the system can cycle through different sub-pixels in a predictable sequence, enabling the display to render high-resolution images with fewer physical structures. The periodic control allows the same physical pixel structure to serve multiple resolution requirements over time.
3Manufacturing precision
If multiple low-resolution images are combined to obtain high-resolution images, then resolution is improved, but processing time increases
Solution Approach 1:
The patent pre-divides each pixel into multiple sub-pixels during the display device setup, establishing the sub-pixel structure in advance. This preliminary segmentation allows the display to achieve high resolution through simple temporal switching during operation, rather than requiring complex post-processing image combination, thus improving resolution while minimizing processing time.
Data Source
AI summary
A display system is disclosed. The display system comprises a display device; and a computing device. The computing device executes instructions to receive a first plurality of sub-pixel values of a first plurality of sub-pixels of an image. The first plurality of sub-pixels have a plurality of colors. The computing device further executes instructions to select a first sub-pixel of the first plurality of sub-pixels. The first sub-pixel has a first color and is spatially close to a second sub-pixel of the first plurality of sub-pixels. The second sub-pixel has the first color. The computing device further executes instructions to generate a second plurality of sub-pixel values of a second plurality of sub-pixels based on at least first and second sub-pixel values corresponding to the first and second sub-pixels of the first plurality of sub-pixels.