Display Device Color Filter Fourth Dot Arrangement
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Solution Overview
Problem
Conventional display devices with R/G/B color dots struggle to achieve natural color representation due to limitations in wavelength range, leading to inadequate resolution and image quality, particularly when pixels are arranged in stripes.
Innovation Solution
Incorporating a fourth dot with a peak wavelength between the first and second peak wavelengths, positioned adjacent to the first or third dot, rather than the second dot, to prevent dot merging and stripe generation, while ensuring proper arrangement based on human visibility considerations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If four dots including C (cyan) are added in addition to three color (R/G/B) dots to expand wavelength range, then color representation capability is improved, but resolution and image display quality deteriorate due to dot merging and stripe generation
Solution Approach 1:
The patent segments the pixel structure by strategically positioning the fourth dot (C, cyan or Y, yellow) to be non-adjacent to the second dot (G, green or B, blue). This segmentation prevents the merging of similar wavelength dots, thereby maintaining resolution while expanding color representation capability through the additional wavelength range provided by the fourth dot.
2Ease of manufacture
If four dots are arranged in stripes to simplify pixel construction, then ease of manufacture is improved, but image display quality deteriorates due to stripe generation along the arrangement direction
Solution Approach 1:
The patent introduces asymmetry in the dot arrangement by positioning the fourth dot to be non-adjacent to the second dot, breaking the symmetric stripe pattern. This asymmetric arrangement prevents the formation of visible stripes along the arrangement direction while maintaining the simplified four-dot pixel construction, thereby improving image display quality without sacrificing ease of manufacture.
Data Source
AI summary
To provide a display device, a color filter, and an electronic apparatus, which can prevent the deterioration of resolution and display quality and can improve display characteristics. There is provided a display device comprising a plurality of dots in a unit pixel. The dots includes first to third dots having first to third peak wavelengths in the wavelength characteristics of emitted light, and a fourth dot having a fourth peak wavelength which is located between the first peak wavelength and the second peak wavelength, and has the fourth peak wavelength which is closer to the second peak wavelength than to the first peak wavelength, in the wavelength characteristics. The fourth dot is arranged not to be adjacent to the second dot, but is arranged to be adjacent to the first dot or the third dot.