US 6,806,921 B2 · Liquid crystal display device having impact resistant light guide and housing

Abstract

A liquid crystal display device including a liquid crystal display panel, an illumination unit including a light-conducting plate having a protrusion protruded from a side surface of the light-conducting plate, and a housing having a bottom plate and a casing provided onto a bottom plate peripheral area for holding the light-conducting plate. A depression portion is formed to the casing of the housing. An inside of the bottom plate peripheral area is processed from roots of the end surfaces along the end surfaces so that a first slit which continues to the end surfaces is formed. The casing in a position separated from the end surfaces with a predetermined interval and an inside of the bottom plate peripheral area in this position are processed so that a second slit is formed. A portion of the housing composed of a part of the casing sandwiched between the first slit and the second slit and the bottom plate is supported to the housing in a manner of a fixed beam with respect to a load in the locating direction.

Claims10

Dependent claims

A liquid crystal display device comprising a liquid crystal display panel, an illumination unit including a light-conducting plate having a protrusion protruded from a side surface of the light-conducting plate, and a housing having a bottom plate and a casing provided onto a bottom plate peripheral area for holding the light-conducting plate,

wherein a depression portion into which the protrusion is fitted for locating the light-conducting plate in a direction along its side surfaces by both end surfaces is formed to the casing of the housing;
an inside of the bottom plate peripheral area is processed from roots of the end surfaces along the end surfaces so that a first slit which continues to the end surfaces is formed;
the casing in a position separated from the end surfaces with a predetermined interval and an inside of the bottom plate peripheral area in this position are processed so that a second slit is formed;
and
a portion of the housing which is composed of a part of the casing sandwiched between the first slit and the second slit and the bottom plate is supported to the housing in a manner of a fixed beam with respect to a load in the locating direction.

2 more elements

A liquid crystal display device comprising a liquid crystal display panel, an illumination unit including a light-conducting plate having at least two adjacent protrusions protruded from a side surface, and a housing having a bottom plate and a casing provided onto a bottom plate peripheral area for holding the light-conducting plate, wherein a convex-concave pattern which is composed of depression portions for fitting the protrusions thereinto and a convex rib is formed on the casing of the housing;

the light-conducting plate is located in a direction along the side surface by outside end surfaces of the convex-concave pattern and inside end surfaces on both sides of the rib;
an inside of the bottom plate peripheral area is processed from roots of the end surfaces along the inside end surfaces of the rib so that slits which continue to the inside end surfaces are formed respectively on both sides of the rib;
and a portion of the housing composed of the rib sandwiched by the slits and the bottom plate is supported in a manner of a fixed beam to the housing with respect to a load in a locating direction.

Dependencies are inferred from the claim text.

Liquid crystal display device having impact resistant light guide and housing

Life of this patent

Liquid crystal display device having impact resistant light guide and housing

Life of this patent

Abstract

Claims10