Display device and an electronic apparatus using the same
AssigneeSemiconductor Energy Laboratory Co., Ltd.
InventorsShunpei Yamazaki, Jun Koyama
Life of this patent
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Abstract
In a conventional display device comprising a sub-display, the display device is increased in thickness and in the number of components as the number of displays is increased. In the present invention, a dual emission display device is used so that either surface of a display is used as a main display or a sub-display. Accordingly, the display device can be reduced in thickness and in the number of components. Further, mechanical reliability can be enhanced when the invention is applied to a tablet PC, a video camera and the like.
Claims47
A display device comprising:
- light emitting elements formed over a light transmissive substrate;
- a first display surface over one surface of the light transmissive substrate;
- and
- a second display surface over the other surface of the light transmissive substrate,
- wherein an image is displayed on a first display screen formed on the first display surface and a second display screen formed on the second display surface using a light from the light emitting elements, and
- wherein the first display screen is larger than the second display screen.
A display device comprising:
- light emitting elements formed over a light transmissive substrate;
- a first display surface over one surface of the light transmissive substrate;
- and
- a second display surface over the other surface of the light transmissive substrate,
- wherein an image is displayed on a first display screen formed on the first display surface and a plurality of second display screens formed on the second display surface using a light from the light emitting elements.
An electronic apparatus comprising:
- a light emitting element formed on a light transmissive substrate;
- and
- display means for emitting light from the light emitting element to the light transmissive substrate side and the opposite side thereof so as to form a first display surface and a second display surface,
- wherein a first display screen formed on the first display surface is larger than a second display screen formed on the second display surface.
An electronic apparatus comprising:
- a light emitting element formed on a light transmissive substrate;
- and
- display means for emitting light from the light emitting element to the light transmissive substrate side and the opposite side thereof so as to form a first display surface and a second display surface,
- wherein a first display screen is formed on the first display surface and a plurality of second display screens are formed on the second display surface.
An electronic apparatus comprising:
- a first housing and a second housing which are connected to each other so as to be used both in open position and closed position;
- display means having a light emitting element formed over a light transmissive substrate mounted in the first housing, which emits light from the light emitting element to the light transmissive substrate side and the opposite side thereof so as to form a first display surface and a second display surface;
- detecting means for detecting a signal corresponding to an angle between the first housing and the second housing;
- and
- switching means for changing a scan direction of the display means in accordance with a signal output from the detecting means.
Dependencies are inferred from the claim text.