Combined display panel
First Claim
1. A combined display panel comprising:
- an instrument panel;
an additional display panel disposed on a portion of said instrument panel; and
a dimming filter, disposed in front of and covering all of a given surface of said instrument panel, said dimming filter having one transparency in a corresponding area to said portion on which said additional display panel is disposed and having a different transparency in areas other than said corresponding area, thereby attaining a substantially uniform luminance on a whole surface of the combined display panel.
1 Assignment
0 Petitions
Accused Products
Abstract
A transparent display panel such as an electroluminescent panel is overlapped on a part of a conventional instrument panel for use in an automobile. The overlapped display panel displays additional information such as navigation maps when required and is turned off under a normal driving condition. When the overlapped transparent display panel is turned off, the conventional instrument panel displays information such as a vehicle speed, an engine speed and so forth. In this situation, overall luminance on the combined display panel is made uniform throughout a whole surface including the area where the transparent display panel is overlapped. To realize the uniformity of luminance, brightness of back lamps for illuminating the instrument panel is adjusted or a filter having an adequate transparency is used. The combined display panel may be also made by combining a non-transparent display panel with a conventional instrument panel. A filter may be used in this case to attain an overall uniform luminance on the combined display panel.
35 Citations
4 Claims
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1. A combined display panel comprising:
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an instrument panel;
an additional display panel disposed on a portion of said instrument panel; and
a dimming filter, disposed in front of and covering all of a given surface of said instrument panel, said dimming filter having one transparency in a corresponding area to said portion on which said additional display panel is disposed and having a different transparency in areas other than said corresponding area, thereby attaining a substantially uniform luminance on a whole surface of the combined display panel. - View Dependent Claims (2)
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3. A combined display panel comprising:
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a first display surface;
a second display surface, disposed not to overlap said first display surface, and having a luminance different from a luminance of said first display surface; and
a transparency adjustment filter, disposed in front of said second display surface to cover said second display surface, and having such a transparency that an overall luminance of the combined display panel is substantially balanced between said first and second display surfaces. - View Dependent Claims (4)
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Specification