Display device
AssigneeSemiconductor Energy Laboratory Co., Ltd.
InventorsYuichi YANAGISAWA, Naoyuki SENDA
Life of this patent
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Abstract
To improve the display quality of a display device. To display a high-quality video regardless of a usage environment. To provide a light-weight and non-breakable display device. To reduce power consumption of a display device. The display device includes a first display element, a second display element, a light diffusion plate, and a polarizing plate. The first display element is a reflective liquid crystal element. The second display element is configured to emit visible light. The light diffusion plate and the polarizing plate are closer to a display surface side than the first display element is. The display device is configured to display an image using one or both of first light reflected by the first display element and second light emitted by the second display element.
Claims19
A display device comprising:
- a first display element;
- a second display element;
- a light diffusion plate;
- and
- a polarizing plate,
- wherein the first display element is a reflective liquid crystal element,
- wherein the second display element is configured to emit visible light,
- wherein the light diffusion plate and the polarizing plate are closer to a display surface side than the first display element is, and
- wherein the display device is configured to display an image using one or both of a first light reflected by the first display element and a second light emitted by the second display element.
A display device comprising:
- a first display element;
- a second display element;
- a light diffusion plate;
- and
- a polarizing plate,
- wherein the first display element is a reflective liquid crystal element,
- wherein the second display element is configured to emit visible light,
- wherein the light diffusion plate and the polarizing plate are closer to a display surface side than the first display element is, and
- wherein the display device is configured to express gray levels by separately controlling an amount of a first light reflected by the first display element and an amount of a second light emitted by the second display element.
A display device comprising:
- a first display element;
- a second display element;
- a light diffusion plate;
- a polarizing plate;
- a first circuit;
- and
- a second circuit,
- wherein the first display element is a reflective liquid crystal element,
- wherein the second display element is configured to emit visible light,
- wherein the light diffusion plate and the polarizing plate are closer to a display surface side than the first display element is,
- wherein the first circuit is electrically connected to the first display element,
- wherein the second circuit is electrically connected to the second display element,
- wherein the second display element is positioned between the first circuit and the second circuit, and
- wherein the display device is configured to display an image using one or both of a first light reflected by the first display element and a second light emitted by the second display element.
Dependencies are inferred from the claim text.