Delta-like OLED Subpixel Luminance Attenuation for Edge Burr Removal
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Solution Overview
Problem
Wearable smart devices with delta-like OLED display panels suffer from unsmooth image edges due to subpixel arrangement, leading to degraded image quality and user experience.
Innovation Solution
An image data processing apparatus that includes an edge detecting module, a subpixel selecting module, a luminance attenuating module, and a data transmitting module, which identifies and adjusts the luminance of subpixels at image edges in a delta-like arrangement to prevent unsmooth burrs, using algorithms like Sobel edge detection and luminance attenuation coefficients correlated to light-emitting efficiency and aperture ratios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If delta-like subpixel arrangement is used in OLED display panels, then the display can be applied in wearable smart devices, but unsmooth burrs appear at image edges leading to degraded image quality
Solution Approach 1:
The patent applies different processing to different regions of the display by identifying edge pixels through gradient calculation and selectively adjusting only the subpixels at image edges. The processing strength varies by location, with edge regions receiving luminance adjustment while non-edge regions remain unchanged, thus resolving the contradiction between maintaining delta arrangement and improving edge smoothness
Solution Approach 2:
The patent changes the luminance parameter of specific subpixels at image edges by calculating gradient values and applying attenuation coefficients. By dynamically adjusting the luminance of edge subpixels based on their position and gradient magnitude, the method eliminates unsmooth burrs while preserving the overall delta-like subpixel arrangement structure
2Manufacturing precision
If subpixel luminance is adjusted to eliminate unsmooth burrs, then image edge sharpness is maintained, but additional processing complexity is introduced
Solution Approach 1:
The system performs self-adjustment by automatically calculating gradients and identifying edge pixels without external intervention. The processing apparatus uses the image data itself to determine which subpixels need adjustment, eliminating the need for separate edge detection hardware or manual configuration, thus reducing overall system complexity while maintaining edge sharpness
Data Source
AI summary
The present disclosure provides a display device, and an image data processing apparatus and method. The image data processing apparatus is applied in a pixel matrix, and includes: an edge detecting module, configured to receive to-be-displayed image data in the pixel matrix, and perform edge detection on the to-be-displayed image data to acquire edge pixels located at an edge of a predetermined type; a subpixel selecting module, configured to judge whether the first and second subpixels in the edge pixels are located on an even more outer side at the edge of the predetermined type relative to the third subpixel, and select the first and second subpixels located on the even more outer side at the edge of the predetermined type relative to the third subpixel as to-be-adjusted subpixels; a luminance attenuating module, configured to perform luminance attenuation on the to-be-adjusted subpixels; and a data transmitting module.