The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 05, 2012
Filed:
Jul. 23, 2009
Naoki Yokota, Takahama, JP;
Yukihide Shibata, Kariya, JP;
Munechika Okita, Nisshin, JP;
Denso Corporation, Kariya, Aichi-Pref., JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, Aichi-Pref., JP;
Abstract
A display device for vehicle includes an LCD panel that has a first pixel region and a second pixel region. The display controller portion displays a meter image on the first pixel region at a regular time and a specific time, and displays an outside image on the second pixel region at the specific time. The display controller portion controls a gradient ratio of pixel in the first pixel region as a meter image gradient ratio, and controls a gradient ratio of pixel in the second pixel region as an outside image gradient ratio. The display controller portion switches and performs a first mode and a second mode. In the first mode, the display controller portion keeps both the meter image gradient ratio and the outside image gradient ratio to the maximum ratio R1max and R2max, and varies a source luminance of a light source according to an adjust value which is in a side brighter than a reference value Cb. In the second mode, the display controller portion keeps the source luminance of the light source at the minimum source luminance Lmin, varies the meter image gradient ratio according to an adjust value which is in a side darker than the reference value Cb, and keeps the outside image gradient ratio at the maximum ratio R2max. As a result, the multiple images in which the display objectives differ can be appropriately displayed to attain each objective.