Display Device Pentile Pattern Green Tint Correction
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Solution Overview
Problem
Display devices with pixels arranged in a Pentile pattern often experience a green tint phenomenon due to adjacent pixels displaying white and black colors, degrading image quality.
Innovation Solution
A display device with a color data converter that determines whether adjacent pixels display white and black colors, adjusting the output color data by decreasing green values or increasing red and blue values in the first pixel and compensating with adjacent pixels to prevent the green tint phenomenon.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If pixels are arranged in a Pentile pattern, then device complexity is reduced and manufacturing is simplified, but green tint phenomenon occurs degrading image quality
Solution Approach 1:
The patent changes the color data parameters dynamically based on the display content. When a white pixel is adjacent to a black pixel, the system adjusts the green component value of the white pixel's color data to prevent the green tint phenomenon, while maintaining the Pentile pattern arrangement for manufacturing simplicity
Solution Approach 2:
The patent implements a feedback mechanism where the system detects the color values of adjacent pixels and automatically adjusts the green component of color data accordingly. The color data converter receives feedback about adjacent pixel colors and modifies output color data to eliminate green tint while preserving the simplified Pentile structure
2Object-affected harmful factors
If color data is adjusted to prevent green tint, then image quality is improved, but device complexity increases due to additional processing
Solution Approach 1:
The patent applies local quality by adjusting color data parameters only in specific situations where white pixels are adjacent to black pixels. The adjustment is localized to affected pixels rather than applying global processing, thereby improving image quality without substantially increasing overall device complexity
Solution Approach 2:
The patent uses partial action by selectively adjusting only the green component parameter of color data when needed, rather than processing all color parameters. This targeted approach improves image quality by preventing green tint while minimizing the additional processing complexity required
Data Source
AI summary
A display device includes a display panel including a plurality of pixels arranged in a pentile pattern, the plurality of pixels having at least a first pixel and a second pixel adjacent to the first pixel, and the display panel being configured to display colors corresponding to respective output color data of the first and second pixels, and a color data converter configured to convert input color data to generate the output color data, the color data converter including a determiner configured to receive the input color data, to determine whether the first pixel displays a white color and the second pixel displays a black color, and to generate a first determination signal based on a result of the determination, and an adjustment unit configured to adjust the output color data of the first or second pixel based on the first determination signal.