Display Panel Sub-Pixel Rendering for Angle-Dependent Color Shift
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Solution Overview
Problem
Conventional display devices face challenges in rendering high-resolution images on small screens without color shift when viewed from different angles due to variations in pixel structures and viewing angles.
Innovation Solution
A display device with a display panel featuring a first pixel and a second pixel having different viewing angles, where the display panel driver applies data voltages and uses rendering filters to render image data, selectively including either the first or second sub-pixel in a rendering unit based on the pixel structure and input image data to prevent color shift.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional RGB stripe pixel structure is used, then manufacturing is simple, but resolution on small screens is insufficient
Solution Approach 1:
The pixel structure is segmented into different sub-pixel types (first sub-pixels and second sub-pixels) with different viewing angle characteristics arranged in specific patterns, allowing high-resolution display while maintaining manufacturing feasibility through standardized sub-pixel modules
Solution Approach 2:
Different regions of the display panel use different sub-pixel configurations - some pixels contain first sub-pixels with narrower viewing angles while others contain second sub-pixels with wider viewing angles, optimizing local display quality according to viewing requirements
2Manufacturing precision
If different pixel structures are used to increase resolution, then display resolution improves, but color shift occurs when viewed from different angles
Solution Approach 1:
The viewing angle parameter is varied across different sub-pixel types - first sub-pixels have narrower viewing angles while second sub-pixels have wider viewing angles. The driver controller adjusts rendering based on these parameter differences to maintain color consistency across different viewing conditions
Solution Approach 2:
The driver controller implements feedback-based rendering that considers the specific pixel structure and viewing angle characteristics of each pixel location, dynamically adjusting the rendering process to compensate for potential color shifts and maintain overall color consistency
3Stability of the object's composition
If rendering is applied to accommodate different pixel structures, then color consistency improves, but processing complexity increases
Solution Approach 1:
The driver controller performs preliminary rendering operations that pre-process image data according to the specific pixel structure configuration before display, storing rendering parameters and lookup tables that simplify real-time processing and reduce computational complexity during actual display operation
Data Source
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AI summary
A display device includes a display panel including a first pixel having a first viewing angle and a second pixel having a second viewing angle different from the first viewing angle, and a display panel driver which applies data voltages to the first pixel and the second pixel and renders coordinate image data for one coordinate of input image data for one rendering unit, and the one rendering unit only includes one of a first sub-pixel included in the first pixel and a second sub-pixel included in the second pixel.