RGBW Pixel Rendering for Resolution and Clarity
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Solution Overview
Problem
Conventional RGBW display devices face challenges in maintaining high resolution and detail clarity due to the loss of sub-pixel information during the conversion process from input RGB signals to output RGBW signals, particularly in distinguishing between text and image modes, leading to insufficient brightness and obscure details.
Innovation Solution
A RGBW pixel rendering device and method that collects RGB grayscale values, performs De-Gamma and Gamma conversions, and uses a determining element to differentiate between text and image modes, adjusting sub-pixel brightness values accordingly to maintain high resolution and clarity by averaging or calculating total brightness values based on specific thresholds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a conventional SPR method is used in RGBW display, then the physical resolution is reduced, but the actual resolution and detail clarity are lost due to sub-pixel information loss
Solution Approach 1:
The patent segments the SPR process into two distinct modes: text mode and image mode. This segmentation allows different rendering strategies to be applied to different content types, preserving sub-pixel information for text while optimizing for image quality, thereby resolving the contradiction between maintaining resolution and preventing information loss.
Solution Approach 2:
The patent applies local quality by using different rendering algorithms for different regions based on content type. For text regions, a specific algorithm preserves brightness and sharpness, while for image regions, another algorithm maintains smoothness and color accuracy. This localized approach ensures high quality output without universal information loss.
2Device complexity
If conventional SPR treats texts and images identically, then the processing is simplified, but display quality deteriorates with insufficient text brightness and obscure details
Solution Approach 1:
The patent introduces dynamic adaptability by automatically detecting content type (text or image) and dynamically switching between different rendering algorithms. This dynamic approach maintains high display quality for both content types while keeping the system relatively simple through automated detection rather than manual configuration.
Solution Approach 2:
The patent changes rendering parameters based on content type detection. For text mode, it adjusts brightness and sharpness parameters to enhance readability, while for image mode, it modifies parameters to preserve smoothness and color fidelity. This parameter adaptation resolves the contradiction between processing simplicity and display quality.
3Loss of energy
If RGBW display is used instead of RGB, then transmittance and luminous efficiency are improved, but physical resolution is reduced due to the extra white sub-pixel
Solution Approach 1:
The patent introduces an intermediary SPR processing stage that acts as a mediator between the reduced physical resolution of RGBW and the desired high actual resolution. This intermediary process reconstructs and optimizes pixel data, enabling RGBW to achieve both energy efficiency and high display quality simultaneously.
Data Source
AI summary
The disclosure provides a RGBW pixel rendering device, including a collecting module obtaining a RGB grayscale value, converters converting the RGB grayscale value to a RGB brightness value and converting a second RGBW brightness value to a RGBW grayscale value to be output, a sampler, converting the RGB brightness value to a first RGBW brightness value, a judging element obtaining saturation values and brightness values, and calculating the saturation values and the brightness values respectively to obtain a saturation value difference and a brightness value difference for judging, a rendering element rendering the first RGBW brightness value according to an outcome to obtain the second RGBW brightness values. The disclosure further provides a rendering method. Compared with the prior art, the display has relatively high resolution without losing details.