Methods for driving electro-optic displays
US-9412314-B2 · Aug 9, 2016 · US
Multi-color electrophoretic displays
US9829764B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9829764-B2 |
| Application number | US-201715653669-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 19, 2017 |
| Priority date | Dec 5, 2003 |
| Publication date | Nov 28, 2017 |
| Grant date | Nov 28, 2017 |
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- Title
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Abstract
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A multi-color electrophoretic medium contains first, second and third species of particles. The first species of particles is light-scattering, while the second and third species of particles are transmissive. A method for driving such a display is also described.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for displaying a plurality of colors in an electrophoretic display including an electrophoretic medium disposed between two electrodes, at least one of the electrodes being light-transmissive, the electrophoretic medium comprising a first species of white reflective particles, a second species of transmissive particles, and a third species of transmissive particles, wherein the first, second, and third particles are different in color and have different electrophoretic mobilities, the method comprising: driving the second species of transmissive particles adjacent the light-transmissive electrode and driving the first species of white reflective particles between the second and third species of transmissive particles to achieve a first color; driving the third species of transmissive particles adjacent the light-transmissive electrode and driving the first species of white reflective particles between the second and third species of transmissive particles to achieve a second color; and driving the first, second, and third particles away from the light-transmissive electrode to achieve a third color. 2. The method of claim 1 , wherein the second and third species of particles are cyan and magenta, respectively, in color. 3. The method of claim 1 , wherein the first species of reflective particles are white in color. 4. The method of claim 1 , further comprising driving the first species of reflective particles adjacent the light-transmissive electrode to achieve a fourth color. 5. An electronic book reader, portable computer, tablet computer, cellular telephone, smart card, sign, watch, shelf label or flash drive incorporating the method of claim 1 .
Assignees
Inventors
Classifications
characterised by the composition or particle type · CPC title
- G02F1/167Primary
by electrophoresis · CPC title
Circuit arrangements or driving methods for the control of single liquid crystal cells (G02F1/132, G02F1/133382 take precedence) · CPC title
Display of colours (specific for liquid crystal displays G09G3/3607) · CPC title
based on particles moving in a fluid or in a gas, e.g. electrophoretic devices (electrophoretic devices per se G02F1/167) · CPC title
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Frequently asked questions
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- What does patent US9829764B2 cover?
- A multi-color electrophoretic medium contains first, second and third species of particles. The first species of particles is light-scattering, while the second and third species of particles are transmissive. A method for driving such a display is also described.
- Who is the assignee on this patent?
- E Ink Corp
- What technology area does this patent fall under?
- Primary CPC classification G02F1/167. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Nov 28 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).