Display device for vehicle
US8743153B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2007 |
| Grant date | Jun 3, 2014 |
| Priority date | — |
| Expiry date | Feb 19, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/144
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display device for a vehicle includes a liquid crystal panel (10), a light source (40), and a controlling means (50). The liquid crystal panel includes a particular display pixel (72) and a normal display pixel (62). The controlling means controls the ratio of the gradation value of the normal display pixel to a set gradation value of the normal display pixel as a gradation ratio of the normal display pixel. At the same time, it controls the ratio of the gradation value of the particular display pixel to a set gradation value of the particular display pixel as a gradation ratio of the particular display pixel. Further, the controlling means sets first and second modes as a control mode, the first mode in which the light source emits light, and the second mode in which the light source emits light with brightness lower than in the first mode. In the first mode, the controlling means sets the gradation ratio of the normal display pixel and the gradation ratio of the particular display pixel at a particular time to a maximum ratio. In the second mode, the controlling means executes a gradation processing for making the gradation ratio of the particular display pixel at a particular …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.