Back to results
US 12,596,256 B2Granted
Display device
AssigneeSony Semiconductor Solutions Corporation
InventorSatoshi Imai
Life of this patent
Estimating the term…
Abstract
Provided is a display device that includes an image display device, a transparent member, and a light reflecting portion. The transparent member includes a first surface facing an observer, a light incident surface, and a second surface that totally reflects light incident from the light incident surface. The first surface includes a first portion and a second portion. A part of light emitted from the image display device is incident from the light incident surface, totally reflected by the second surface, reflected by the light reflecting portion, emitted from the first portion, and reaches a pupil of the observer, and another part of the light emitted from the image display device is incident from the light incident surface, collides with the second portion and does not reach the pupil of the observer.
Claims15
A display device, comprising:
- an image display device configured to emit light;
- a plate-shaped transparent member;
- and
- a light reflecting portion, wherein
- the plate-shaped transparent member includes:
- a first surface facing an observer who observes an image;
- a light incident surface on which the light emitted from the image display device is incident;
- and
- a second surface that faces the first surface, wherein the second surface is configured to totally reflect the light incident from the light incident surface,
- the first surface includes a first portion and a second portion,
- the second portion is in a region close to the light incident surface,
- the first portion extends from the second portion and is in a region far from the light incident surface,
- the light reflecting portion is one of inside the plate-shaped transparent member corresponding to the first portion of the first surface of the plate-shaped transparent member or in the first portion of the first surface of the plate-shaped transparent member,
- a first part of the light emitted from the image display device is incident from the light incident surface, totally reflected by the second surface, further reflected by the light reflecting portion, emitted from the first portion of the first surface, and reaches a pupil of the observer,
- a second part of the light emitted from the image display device is incident from the light incident surface, collides with the second portion of the first surface, and does not reach the pupil of the observer,
- the light reflecting portion includes a plurality of light reflecting segments, and
- SN<SF is satisfied,
- where a size of a first light reflecting segment of the plurality of light reflecting segments that is in the region close to the light incident surface is SN, and a size of a second light reflecting segment of the plurality of light reflecting segments that is in the region far from the light incident surface is SF.
15 more elements
A display device, comprising:
- an image display device configured to emit light;
- a plate-shaped transparent member;
- and
- a light reflecting portion, wherein
- the plate-shaped transparent member includes:
- a first surface facing an observer who observes an image;
- a light incident surface on which the light emitted from the image display device is incident;
- and
- a second surface that faces the first surface, wherein the second surface is configured to totally reflect the light incident from the light incident surface,
- the light reflecting portion is one of inside the plate-shaped transparent member or on the first surface of the plate-shaped transparent member,
- the light emitted from the image display device is incident from the light incident surface, totally reflected by the second surface, further reflected by the light reflecting portion, emitted from the first surface, and reaches a pupil of the observer,
- the light reflecting portion includes a plurality of light reflecting segments, and
- SN<SF is satisfied,
- where a size of a first light reflecting segment of the plurality of light reflecting segments that is in a region close to the light incident surface is SN, and a size of a second light reflecting segment of the plurality of light reflecting segments that is in a region far from the light incident surface is SF.
11 more elements
A display device, comprising:
- an image display device configured to emit light;
- a plate-shaped transparent member;
- and
- a light reflecting portion, wherein
- the plate-shaped transparent member includes:
- a first surface facing an observer who observes an image;
- a light incident surface on which the light emitted from the image display device is incident;
- and
- a second surface that faces the first surface, wherein the second surface is configured to totally reflect the light incident from the light incident surface,
- the light reflecting portion is one of inside the plate-shaped transparent member or on the first surface of the plate-shaped transparent member,
- the light emitted from the image display device is incident from the light incident surface, totally reflected by the second surface, further reflected by the light reflecting portion, emitted from the first surface, and reaches a pupil of the observer,
- the light reflecting portion includes a plurality of light reflecting segments,
- a portion where a light beam emitted from a center of the image display device and perpendicularly incident on the pupil of the observer is emitted from the plate-shaped transparent member is referred to as a center of the plate-shaped transparent member,
- an orthogonal projection image of a trace of the light beam emitted from the center of the image display device in the plate-shaped transparent member on the second surface is assumed as an X axis,
- a normal line of the second surface passing through the center of the plate-shaped transparent member is assumed as a Z axis,
- an axis orthogonal to the X axis and the Z axis is assumed as a Y axis, and
- PN-Y>PF-Y is satisfied,
- where an arrangement pitch along a Y direction parallel to the Y axis of a first light reflecting segment of the plurality of light reflecting segments that is in a region close to the light incident surface is PN-Y, and an arrangement pitch along the Y direction parallel to the Y axis of a second light reflecting segment of the plurality of light reflecting segments that is in a region far from the light incident surface is PF-Y.
15 more elements
Dependencies are inferred from the claim text.