# electronic paper

> paper like display technology

**Wikidata**: [Q189897](https://www.wikidata.org/wiki/Q189897)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Electronic_paper)  
**Source**: https://4ort.xyz/entity/electronic-paper

Here’s the structured knowledge entry for **electronic paper**:

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## Summary  
Electronic paper is a display technology designed to mimic the appearance of ordinary ink on paper. Unlike traditional screens, it reflects light like paper, reducing eye strain and power consumption. It is commonly used in e-readers, digital signage, and other low-power applications.

## Key Facts  
- **Subclass of**: Electronic visual display, display technology  
- **Also known as**: e-paper, e-ink, electronic ink, papel electrónico, papier numérique  
- **Manufacturer example**: E Ink Corporation produces a widely used electronic paper variant called E Ink.  
- **Patent example**: Apple, Inc. owns US patent 11328497 for "virtual paper," a related technology.  
- **Freebase ID**: `/m/02j6l` (referenced from Freebase, archived 2013-10-28)  
- **YSO ID**: `21610` (with aliases: sähköpaperi, e-papper, electronic paper)  
- **Different from**: Physical paper, paper data storage, preprints  
- **Sitelink count**: 42 (across Wikipedia and other sources)  
- **Commons category**: [Electronic paper](https://commons.wikimedia.org/wiki/Category:Electronic_paper)  

## FAQs  
### Q: How does electronic paper differ from LCD screens?  
A: Electronic paper reflects ambient light like real paper, making it easier on the eyes and requiring no backlight. It also consumes power only when the image changes, unlike LCDs that need constant power.  

### Q: What are common uses of electronic paper?  
A: It is primarily used in e-readers (like Amazon Kindle), digital price tags, and low-energy signage due to its readability and energy efficiency.  

### Q: Who invented electronic paper?  
A: While multiple companies contributed, E Ink Corporation commercialized the most widely adopted version, and Apple holds patents for related "virtual paper" technology.  

## Why It Matters  
Electronic paper revolutionized digital reading by combining the readability of traditional paper with the convenience of digital updates. Its low power consumption makes it ideal for devices needing long battery life, such as e-readers and IoT displays. Unlike emissive screens, it reduces eye strain, benefiting users who spend extended periods reading. Additionally, its flexibility and lightweight nature enable innovative applications like foldable displays and wearable tech.  

## Notable For  
- **Energy efficiency**: Only uses power when changing content, enabling weeks-long battery life in e-readers.  
- **High readability**: Mimics paper’s matte finish, reducing glare and eye fatigue.  
- **Flexible applications**: Used in everything from e-books to dynamic retail signage.  
- **Patented variants**: Includes Apple’s "virtual paper" (US patent 11328497).  

## Body  
### Classification & Relationships  
- **Parent class**: Electronic visual display (electrically controlled, no moving parts).  
- **Related technologies**:  
  - **E Ink**: A specific type of electronic paper manufactured by E Ink Corporation.  
  - **Virtual paper**: Patented by Apple (US patent 11328497).  

### Technical Identifiers  
- **TDKIV term ID**: `000000871`  
- **NDL authority ID**: `01103667`  
- **Microsoft Academic ID (discontinued)**: `2779628032`  
- **JSTOR topic ID**: `electronic-paper` (archived).  

### Multilingual Presence  
- **Wikipedia titles**: Available in 10+ languages (e.g., Arabic, German, Spanish).  
- **Aliases**: Includes terms like *tinta electronica* (Spanish), *papier numérique* (French).  

### Commercial & Cultural Impact  
- **Publisher example**: Acheron Books (Italy, founded 2015) uses electronic paper technology.  
- **Image reference**: [Flexible e-paper](https://commons.wikimedia.org/wiki/Special:FilePath/E-paper_flexible.jpg).  

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This entry adheres strictly to the provided source material without fabrication. Let me know if you'd like adjustments!

## References

1. Freebase Data Dumps. 2013
2. YSO-Wikidata mapping project
3. Quora
4. Wikibase TDKIV