Image Display Device Sub-Pixel Control for Color Gamut and Resolution
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional image display devices experience a decrease in apparent resolution due to an increase in the number of sub-pixels per pixel, as the area used for color extension increases, leading to inefficient use of sub-pixels and reduced display quality.
Innovation Solution
An image display device comprising first and second pixels with sub-pixels of different color gamuts, arranged in a matrix, where a processing unit determines the output of sub-pixels based on parts of the input image signal, allowing for efficient color extension and maintaining high resolution by optimizing the lighting of sub-pixels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the number of sub-pixels per pixel is increased to improve color extension capability, then the area used for color extension increases, but the apparent resolution is lowered
Solution Approach 1:
The pixel is divided into multiple sub-pixels with different color functions (red, green, blue, cyan, magenta, yellow, white). By segmenting the color extension function across multiple specialized sub-pixels rather than using a single general-purpose sub-pixel, the system achieves better color extension capability while maintaining resolution through precise control of each sub-pixel's contribution to the final display.
Solution Approach 2:
Different sub-pixels within the same pixel are assigned different colors and functions (e.g., some sub-pixels are optimized for color extension while others maintain original color accuracy). This local differentiation allows the system to extend color gamut in specific regions without compromising the overall resolution and image quality.
2Adaptability or versatility
If the number of sub-pixels per pixel is increased to improve color extension capability, then more colors can be displayed, but power consumption increases due to more sub-pixels being lit
Solution Approach 1:
The system selectively activates only the necessary sub-pixels based on the specific color extension requirements of each pixel. Rather than lighting all sub-pixels uniformly, the control circuit determines the minimal set of sub-pixels needed to achieve the desired color extension, thereby reducing overall power consumption while maintaining color extension capability.
Solution Approach 2:
The system dynamically adjusts the luminance and activation state of different sub-pixels based on the input image signal characteristics. By changing the operational parameters (brightness, activation) of sub-pixels according to the specific color extension needs, the system achieves color extension capability while optimizing power consumption through selective and variable sub-pixel activation.
Data Source
AI summary
An image display device includes an image display unit including first pixels each constituted of sub-pixels of three or more colors included in a first color gamut and second pixels each constituted of sub-pixels of three or more colors included in a second color gamut different from the first color gamut, the first pixels and the second pixels being arranged in a matrix and adjacent to each other; and a processing unit that determines an output of the sub-pixels included in each pixel of the image display unit corresponding to an input image signal. The processing unit determines an output of the sub-pixels included in the other one of the pixels based on part of components of an input image signal corresponding to one of the first pixel and the second pixel that are adjacent to each other.