US 12,298,520 B2
Head-mounted display apparatus, optical unit, and manufacturing method of optical unit
Takuya Ikeda, Shiojiri (JP); Toshiaki Miyao, Chino (JP); and Toshiyuki Noguchi, Shiojiri (JP)
Assigned to SEIKO EPSON CORPORATION, Tokyo (JP)
Filed by SEIKO EPSON CORPORATION, Tokyo (JP)
Filed on Aug. 15, 2023, as Appl. No. 18/450,356.
Claims priority of application No. 2022-129931 (JP), filed on Aug. 17, 2022.
Prior Publication US 2024/0061256 A1, Feb. 22, 2024
Int. Cl. G02B 27/01 (2006.01); G02B 27/00 (2006.01); G02B 27/09 (2006.01); G02B 27/14 (2006.01)
CPC G02B 27/0176 (2013.01) [G02B 27/0006 (2013.01); G02B 27/0983 (2013.01); G02B 27/144 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A head-mounted display apparatus, comprising:
a display element;
a holder configured to hold the display element;
a projection optical system configured to project an image formed on the display element; and
a case configured to house the projection optical system in a positioned state, wherein
the display element includes a plate-shaped main body and a flexible printed circuit portion coupled to an upper portion of the plate-shaped main body,
the holder includes a support frame inserted into the case through an insertion opening formed at the case while supporting the display element, and a base plate coupled to a root of the support frame,
the case includes a holder pedestal facing the base plate, and
a dust-proof structure includes an adhesive material extending along a periphery of the base plate and protruding to the holder pedestal,
wherein the display element supported by the holder is configured to be inserted into an inner space of the case from an upper side of the case via the insertion opening and be fixed in the positioned state, and
when the display element is fixed in the positioned state, the flexible printed circuit portion extends upward and out of the insertion opening, and the support frame of the holder is located in the inner space of the case and extends in parallel to the plate-shaped main body of the display element.