Viewing angle switching structure, display device and viewing angle switching method thereof
US10585301B2 · kind B2 · utility
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Key dates
| Filing date | Jun 1, 2018 |
| Grant date | Mar 10, 2020 |
| Priority date | — |
| Expiry date | Jun 9, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/068
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present disclosure provides a viewing angle switching structure, a display device and a viewing angle switching method. The viewing angle switching structure includes a plurality of viewing angle switching units corresponding to pixels on a display panel. Each viewing angle switching unit includes: an accommodation cavity; a first solution layer and a second solution layer in the accommodation cavity, a liquid interface being formed between the first and the second solution layers; and an electric field driving unit configured to generate a driving electric field to be applied to the accommodation cavity. The first solution layer has a refractive index different from the second solution layer. The first solution layer includes a transparent conductive solution and the second solution layer includes a transparent non-conductive solution. A shape of the liquid interface between the first and the second solution layers is changeable under the effect of the driving electric field.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.