Head-up display cover member and display device
First Claim
Patent Images
1. A head-up display cover member that covers from an upper side an image generation unit for generating an image viewed as a virtual image on a front side of a user, the cover member comprising:
- an upper wall;
a first transmissive member that transmits a light beam including the image generated by the image generation unit; and
a second transmissive member that is disposed on a rear side of the first transmissive member and transmits the light beam including the image generated by the image generation unit, whereinthe first transmissive member and the second transmissive member are disposed within a same opening formed in the upper wall,the first transmissive member is shaped to face upward from a front end to a rear end,the second transmissive member is shaped to face upward from a front end to a rear end, andan angle defined by a slope at the rear end of the first transmissive member with respect to a front-rear direction is set to be larger than an angle defined by a slope at the front end of the second transmissive member with respect to the front-rear direction, or the rear end of the first transmissive member is offset to an upper side of the front end of the second transmissive member.
1 Assignment
0 Petitions
Accused Products
Abstract
In a head-up display, a cover member includes a first transmissive member and a second transmissive member that transmit a light beam including an image generated by an image generation unit. The first transmissive member is formed to face upward from a front end to a rear end. Likewise, the second transmissive member is formed to face upward from a front end to a rear end. The rear end of the first transmissive member is offset to an upper side from the front end of the second transmissive member.
-
Citations
19 Claims
-
1. A head-up display cover member that covers from an upper side an image generation unit for generating an image viewed as a virtual image on a front side of a user, the cover member comprising:
-
an upper wall; a first transmissive member that transmits a light beam including the image generated by the image generation unit; and a second transmissive member that is disposed on a rear side of the first transmissive member and transmits the light beam including the image generated by the image generation unit, wherein the first transmissive member and the second transmissive member are disposed within a same opening formed in the upper wall, the first transmissive member is shaped to face upward from a front end to a rear end, the second transmissive member is shaped to face upward from a front end to a rear end, and an angle defined by a slope at the rear end of the first transmissive member with respect to a front-rear direction is set to be larger than an angle defined by a slope at the front end of the second transmissive member with respect to the front-rear direction, or the rear end of the first transmissive member is offset to an upper side of the front end of the second transmissive member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
-
-
18. A head-up display cover member that covers from an upper side an image generation unit for generating an image viewed as a virtual image on a front side of a user, the cover member comprising:
-
a first transmissive member that transmits a light beam including the image generated by the image generation unit; a second transmissive member that is disposed on a rear side of the first transmissive member and transmits the light beam including the image generated by the image generation unit, wherein the first transmissive member is shaped to face upward from a front end to a rear end, the second transmissive member is shaped to face upward from a front end to a rear end, an angle defined by a tangential plane at the rear end of the first transmissive member with respect to a front-rear direction is set to be larger than an angle defined by a tangential plane at the front end of the second transmissive member with respect to the front-rear direction, or the rear end of the first transmissive member is offset to an upper side of the front end of the second transmissive member, the first transmissive member has a curved surface that protrudes downward and curves upward while increasing in slope from the front end toward the rear end, the second transmissive member has a curved surface that protrudes downward and curves upward while increasing in slope from the front end toward the rear end, and the rear end of the first transmissive member is coupled with the front end of the second transmissive member through a support member; a light emitting portion that is disposed at the second transmissive member side of the support member and emits a light beam different from the light beam including the image generated by the image generation unit in a direction of the light beam including the image; and a light shielding portion that is disposed on the second transmissive member side of the support member substantially in parallel to a direction in which the light beam including the image passes through the second transmissive member.
-
-
19. A head-up display cover member that covers from an upper side an image generation unit for generating an image viewed as a virtual image on a front side of a user, the cover member comprising:
-
a first transmissive member that transmits a light beam including the image generated by the image generation unit; a second transmissive member that is disposed on a rear side of the first transmissive member and transmits the light beam including the image generated by the image generation unit, wherein the first transmissive member is shaped to face upward from a front end to a rear end, the second transmissive member is shaped to face upward from a front end to a rear end, an angle defined by a slope at the rear end of the first transmissive member with respect to a front-rear direction is set to be larger than an angle defined by a slope at the front end of the second transmissive member with respect to the front-rear direction, or the rear end of the first transmissive member is offset to an upper side of the front end of the second transmissive member, the first transmissive member is formed in a plate shape that is inclined upward from the front end toward the rear end, the second transmissive member is formed in a plate shape that is inclined upward from the front end toward the rear end, and the rear end of the first transmissive member is coupled with the front end of the second transmissive member through a support member; a light emitting portion that is disposed at the second transmissive member side of the support member and emits a light beam different from the light beam including the image generated by the image generation unit in a direction of the light beam including the image; and a light shielding portion that is disposed on the second transmissive member side of the support member substantially in parallel to a direction in which the light beam including the image passes through the second transmissive member.
-
Specification