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US 2013/0094173 A1Published application
Display Device And An Electronic Apparatus Using The Same
AssigneeSemiconductor Energy Laboratory Co., Ltd.
InventorsShunpei Yamazaki, Jun Koyama
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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.
Claims18
A display device comprising:
- a light transmissive substrate which comprises a first surface and a second surface;
- a transistor over the first surface;
- and
- a light emitting element over the first surface, the light emitting element comprising:
- a first light transmissive electrode electrically connected to the transistor;
- a light emitting layer over the first light transmissive electrode;
- and
- a second light transmissive electrode over the light emitting layer,
- wherein the first surface and the second surface are opposed to each other,
- wherein a first display surface is a side of the first surface,
- wherein a second display surface is a side of the second surface,
- wherein the light-emitting element emits a light,
- wherein the light passes through the second light transmissive electrode to the first display surface, and
- wherein the light passes through the first light transmissive electrode to the second display surface.
11 more elements
A display device comprising:
- a light transmissive substrate which comprises a first surface and a second surface;
- a transistor over the first surface;
- and
- a plurality of pixels over the first surface, one of the plurality of pixels comprising a light emitting element, the light emitting element comprising:
- a first light transmissive electrode electrically connected to the transistor;
- a light emitting layer over the first light transmissive electrode;
- and
- a second light transmissive electrode over the light emitting layer,
- wherein the first surface and the second surface are opposed to each other,
- wherein a first display surface is a side of the first surface,
- wherein a second display surface is a side of the second surface,
- wherein the light-emitting element emits a light,
- wherein the light passes through the second light transmissive electrode to the first display surface, and
- wherein the light passes through the first light transmissive electrode to the second display surface.
11 more elements
Dependencies are inferred from the claim text.