E Ink 目前有三套面向不同市场与场景的彩色电子纸技术:Kaleido 3 与 Gallery 3 主要瞄准电子书阅读器与电纸本,而 Spectra 6 通常用于商超的数字标牌与电子价签。

Kaleido 3 是 E Ink 控股开发的第三代彩色电子纸技术,在保持纸感阅读体验的同时为阅读器与电纸本带来色彩。它在黑白屏之上叠加 RGB 微色滤阵列,实现 150 PPI、4096 色与 16 级灰阶;色彩饱和度较上代 Kaleido Plus 提升 30%。Kaleido 3 还采用 E Ink ComfortGaze 新型前光,降低蓝光——蓝光比例(BLR)与蓝光毒性因子(BLTF)分别最多下降 60% 与 24%;得益于墨水响应速度,它还能播放动画与视频。
E Ink Gallery 3 是真正的全彩电子纸技术,它在每个像素内部使用四粒子墨水系统(青、品红、黄、白),而非在黑白屏上叠加彩色滤光层,基于 E Ink ACeP™ 先进彩色电子纸平台实现每个像素的全色域。在 Gallery 3 中,黑白刷新提升到 350 毫秒,快速彩色模式 500ms,标准彩色 750–1000ms,最佳彩色 1500ms——较初代 Gallery 黑白 2 秒、彩色 10 秒大幅改善;分辨率提升到 300 PPI(原 150),工作温度 0–50℃,并支持黑白手写(更新 30ms),配备 ComfortGaze™ 前光。
E Ink Spectra 6 则是为取代纸质标牌、电子画框与零售显示屏而生的全彩电子纸技术。它在前代 Spectra 3000(三粒子:黑、白、红)与 Spectra 3100(四粒子:加黄)基础上,采用六种不同颜色粒子组合出全彩画面;最高 200 PPI,对比度约 30:1;兼容 E Ink Sparkle,并支持局部闪烁动效来为广告增添动感。三套技术分别对应室内鲜艳彩显、高质量全彩成像与宽温户外等不同需求。
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E Ink currently offers three distinct color electronic paper technologies, each tailored for specific markets: Kaleido 3 and Gallery 3 are primarily designed for e-readers and digital notebooks, while Spectra 6 is intended for commercial signage and electronic price tags in retail settings.
Kaleido 3, the third iteration of E Ink's color technology, maintains the characteristic paper-like reading experience while introducing color capabilities to e-readers. It utilizes an RGB micro-color filter array overlaid on a monochrome display to achieve 150 PPI density, 4096 colors, and 16 levels of grayscale. The color saturation has been notably improved by 30% compared to its predecessor, Kaleido Plus. Additionally, Kaleido 3 incorporates E Ink ComfortGaze front lighting, which reduces blue light exposure — lowering the Blue Light Ratio (BLR) by up to 60% and the Blue Light Toxicity Factor (BLTF) by 24%. Thanks to its fast ink response, it is also capable of displaying animations and videos.
Gallery 3 represents a true full-color e-paper technology, employing a four-particle ink system (cyan, magenta, yellow, white) within each pixel, rather than using a color filter on a black-and-white substrate. This allows for a full color spectrum in every pixel, based on the Advanced Color ePaper (ACeP) platform. The refresh rates have been significantly improved: black-and-white updates occur within 350 milliseconds, and full-color modes range from 500 ms for fast changes to 1500 ms for optimal quality — a vast improvement over the initial Gallery model's 2-second black-and-white and 10-second color times. The resolution has also been increased to 300 PPI, and it supports black-and-white handwriting with a 30 ms update time, all while maintaining ComfortGaze lighting.
Spectra 6 is engineered for outdoor and retail environments, serving as a replacement for paper signs and electronic picture frames. Building on the previous Spectra 3000 (black/white/red) and 3100 (black/white/red/yellow) models, Spectra 6 utilizes a combination of six colored particles to produce a full-color image. It offers a resolution of up to 200 PPI with a contrast ratio of approximately 30:1. Compatible with E Ink Sparkle, it supports localized blinking effects to add dynamism to advertisements, making it suitable for wide temperature ranges and high environmental demands.