Display apparatus and manufacturing method thereof

Patent metadata

Field	Value
Publication number	US-2017355302-A1
Application number	US-201715618018-A
Country	US
Kind code	A1
Filing date	Jun 8, 2017
Priority date	Jun 13, 2016
Publication date	Dec 14, 2017
Grant date	—

Abstract

A manufacturing method of a display apparatus including a light blocking housing having a peripheral wall and formed at an inner side of the peripheral wall with a concave part, a light source arranged in the concave part, and a lid having an opposite surface to the housing, sealing the light source in the concave part, and having a light transmitting decorative surface formed at a part of the opposite surface except for an end portion, the manufacturing method includes: forming a top surface of the peripheral wall as a stepwise surface including an outer bonding surface and an inner stepped surface lowered more than the bonding surface by one step; and bonding the end portion of the opposite surface to the bonding surface in a state in which an end portion of the decorative surface is allowed to face the stepped surface.

First claim

What is claimed is:

1 . A manufacturing method of a display apparatus including a light blocking housing having a peripheral wall and formed at an inner side of the peripheral wall with a concave part, a light source arranged in the concave part, and a lid having an opposite surface to the housing, sealing the light source in the concave part, and having a light transmitting decorative surface formed at a part of the opposite surface except for an end portion, the manufacturing method comprising:
forming a top surface of the peripheral wall as a stepwise surface including an outer bonding surface and an inner stepped surface lowered more than the bonding surface by one step; and bonding the end portion of the opposite surface to the bonding surface in a state in which an end portion of the decorative surface is allowed to face the stepped surface.

2 . The manufacturing method of the display apparatus according to claim 1 , further comprising:
forming the decorative surface such that light from the light source is not incident into an end portion of the lid without passing through the decorative surface.

3 . The manufacturing method of the display apparatus according to claim 1 , further comprising:
forming a depth of the stepped surface from the bonding surface to be larger than a thickness of the decorative surface such that the decorative surface does not abut on the stepped surface.

4 . The manufacturing method of the display apparatus according to claim 1 , further comprising:
forming the housing and the lid with thermoplastic resin; and boding the end portion of the opposite surface of the lid and the bonding surface of the peripheral wall of the housing to each other by welding.

5 . The manufacturing method of the display apparatus according to claim 4 , wherein
the end portion of the opposite surface of the lid and the bonding surface of the peripheral wall of the housing are bonded to each other by ultrasonic welding or laser welding.

6 . The manufacturing method of the display apparatus according to claim 1 , further comprising:
providing the opposite surface of the lid with a protrusion thinner than the thickness of the decorative surface, before the end portion of the opposite surface of the lid and the bonding surface of the peripheral wall of the housing are bonded to each other, wherein the end portion of the opposite surface of the lid and the bonding surface of the peripheral wall of the housing are bonded to each other through the protrusion.

7 . A display apparatus comprising:
a light blocking housing having a peripheral wall and formed at an inner side of the peripheral wall with a concave part; a light source arranged in the concave part; and a lid having an opposite surface to the housing, sealing the light source in the concave part, and having a light transmitting decorative surface formed at a part of the opposite surface except for an end portion, wherein: a top surface of the peripheral wall is a stepwise surface including an outer bonding surface and an inner stepped surface lowered more than the bonding surface by one step; and the end portion of the opposite surface is bonded to the bonding surface such that an end portion of the decorative surface faces the stepped surface.

Assignees

• Toyoda Gosei Kk

Inventors

• Kuramitsu Yuki
• Fukui Hirotaka
• Tanaka Yoshiharu

Classifications

• G02B6/0031

  Reflecting element, sheet or layer · CPC title

• G02B6/0036

  2-D arrangement of prisms, protrusions, indentations or roughened surfaces · CPC title

• B60R13/005

  Manufacturers' emblems, name plates, bonnet ornaments, mascots or the like; Mounting means therefor · CPC title

• F21S43/239

  plate-shaped · CPC title

• G02B6/0081

  Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging · CPC title