S-Stripe Display Subpixel Luminance Control for Color Bleeding
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Solution Overview
Problem
Display devices with regularly arranged subpixels often experience color bleeding, particularly at image boundaries, due to differences in light emission intensity between adjacent subpixels.
Innovation Solution
A display device with an S-stripe pixel structure and a data converter that applies specific rendering filters to each color subpixel, adjusting luminance levels based on adjacent subpixel data to minimize color bleeding at image boundaries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If regularly arranged subpixels are used in display devices, then the structure is simple and easy to manufacture, but color bleeding occurs at image boundaries due to differences in light emission intensity between adjacent subpixels
Solution Approach 1:
The patent applies asymmetry by using an S-stripe subpixel arrangement instead of traditional symmetric RGB stripe patterns. The S-stripe configuration positions subpixels of the same color in a staggered, asymmetric pattern that reduces direct alignment at boundaries, thereby minimizing color bleeding while maintaining manufacturing feasibility
Solution Approach 2:
The patent applies local quality by implementing different rendering filter strategies for different regions of the display. Specifically, boundary detection is performed to identify edge regions where color bleeding is most problematic, and adaptive rendering filters are applied selectively to these regions rather than uniformly across the entire display, optimizing the balance between image quality and processing efficiency
2Object-generated harmful factors
If rendering filters are applied to adjust luminance levels of subpixels, then color bleeding is reduced at image boundaries, but processing complexity increases
Solution Approach 1:
The patent applies partial action by implementing boundary detection that identifies only the specific regions where color bleeding occurs (image boundaries and edges). Rendering filters are then applied selectively to these detected boundary regions rather than to the entire image, reducing the overall processing load while maintaining effectiveness in eliminating color bleeding where it matters most
Solution Approach 2:
The patent applies parameter changes by dynamically adjusting the luminance values of subpixels based on their position and the detected boundary conditions. The rendering filter modifies the intensity parameters of adjacent subpixels adaptively, changing the luminance parameters locally at boundaries to prevent color bleeding while leaving other regions unchanged, thus balancing processing complexity with visual quality
Data Source
AI summary
A display device includes: a display unit including pixels including a first color subpixel at a left upper end, a second color subpixel at a left lower end, and a third color subpixel at a right side; a data converter to convert first color, second color, and third color unit input data into first color, second color, and third color unit adapted data; and a driver to apply an image signal to the pixel based on the adapted data, the data converter generating unit adapted data using first unit input data of a target subpixel and second unit input data of another subpixel adjacent the target subpixel along a direction, the direction being: an up direction when the target subpixel is the first color subpixel; a down direction when the target subpixel is the second color subpixel; and a right direction when the target subpixel is the third color subpixel.