Display system and electronic mirror system including the display system
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsNorihiro Imamura, Michihiro Yamagata, Kenji Nagatomi
Life of this patent
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Abstract
A display system includes a display device, a first mirror, and a second mirror. The display device includes a display surface that displays a first image. Light emitted by the display device is incident directly or indirectly on the first mirror. The first mirror reflects the light incident. The light reflected by the first mirror is directly or indirectly incident on the second mirror. The second mirror reflects, toward an eye-box, the light incident. The light reflected by the second mirror enters an eye of an observer present within the eye-box to display, on the eye of the observer, a second image based on the first image. The first mirror is a Fresnel mirror.
Claims14
A display system, comprising:
- a display device including a display surface that displays a first image;
- a first mirror on which light emitted by the display device is directly or indirectly incident and which reflects the light incident;
- a second mirror on which the light reflected by the first mirror is directly or indirectly incident and which reflects the light incident toward an eye-box;
- a polarizing member on a light path of the light reflected by the second mirror and reaching the eye-box;
- and
- a first λ/4 retarder on a surface of the polarizing member facing the second mirror, wherein
- the light reflected by the second mirror enters an eye of an observer present within the eye-box to display, on the eye of the observer, a second image based on the first image, and
- the first mirror is a Fresnel mirror,
- a transmission axis of the polarizing member is set to a direction in which a linear bright line, that is generated by a reflection of the Fresnel mirror in a direction other than a regular reflection of the Fresnel mirror, is reduced, and
- a slow axis of the first λ/4 retarder is inclined 45 degrees with respect to the transmission axis of the polarizing member.
Dependencies are inferred from the claim text.