Patent ID: 9726884
Date: 2017-08-08
CPC Classifications: G02B,G03B,H04N

Claim:
1. A displaying apparatus unit comprising: a first holder configured to hold a displaying element; a second holder configured to hold an optical operating plate which operates on light from the displaying element; a prism member disposed on an opposite side of the displaying element with respect to the optical operating plate; a first dustproof cover member disposed between the first holder and the second holder, and configured to cover a whole side surface of the displaying element; a second dustproof cover member disposed between the first dustproof cover member and the second holder; and a third dustproof cover member disposed between the prism member and the second holder, wherein the first dustproof cover member is in contact with the first holder, the second dustproof cover member is in contact with the second holder, the first dustproof cover member and the second dustproof cover member are in contact with each other, and the first dustproof cover member has a hardness higher than that of the second dustproof cover member.