Invention Grant
- Patent Title: Display device for vehicle
- Patent Title (中): 车载显示装置
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Application No.: US12507920Application Date: 2009-07-23
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Publication No.: US08194030B2Publication Date: 2012-06-05
- Inventor: Naoki Yokota , Yukihide Shibata , Munechika Okita
- Applicant: Naoki Yokota , Yukihide Shibata , Munechika Okita
- Applicant Address: JP Kariya, Aichi-Pref. JP Toyota, Aichi-Pref.
- Assignee: Denso Corporation,Toyota Jidosha Kabushiki Kaisha
- Current Assignee: Denso Corporation,Toyota Jidosha Kabushiki Kaisha
- Current Assignee Address: JP Kariya, Aichi-Pref. JP Toyota, Aichi-Pref.
- Agency: Nixon & Vanderhye PC
- Priority: JP2008-191406 20080724
- Main IPC: G09G3/36
- IPC: G09G3/36

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.
Public/Granted literature
- US20100079367A1 DISPLAY DEVICE FOR VEHICLE Public/Granted day:2010-04-01
Information query
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