US 2008/0186431 A1 · Liquid crystal display device

Abstract

The present invention provides a light-weighted backlight capable of ensuring a sufficient light quantity at a low cost. A backlight is arranged below a liquid crystal panel. A light source is arranged in the vertical direction with respect to a screen of the liquid crystal panel so that light from the light source is directed toward the liquid crystal panel by a reflector. Due to such a constitution, the reflector can also function as a back lid of the backlight. Further, the reflector plays a role of directing the light from the light source toward the liquid crystal panel and hence, a light guide plate can be omitted. Due to such a constitution, the present invention can realize the reduction of weight and cost of the backlight or the liquid crystal display panel.

Claims20

Dependent claims

A liquid crystal display device comprising:

a liquid crystal panel;
and
a backlight arranged on a side opposite to a display screen of the liquid crystal panel, wherein
the backlight includes a light source and a reflector for reflecting light radiated from the light source toward the liquid crystal panel, and
the reflector has a shape thereof determined due to the fixing of the end portions of the reflector to the backlight.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

12/068,090Filed 1 Feb 2008

Priority

JP 2007-0230661 Feb 2007

Published

7 Aug 2008

Term ends

Not estimatedThe source records don’t support an estimate.

Classification4 codes

G02F 1/133615
Illuminating devices: edge-illuminating devices, i.e. illuminating from the side
G02F 1/133605
Direct backlight: including specially adapted reflectors
G02F 1/133608
Direct backlight: including particular frames or supporting means
G02F
Optical devices or arrangements for the control of light by modification of

Liquid crystal display device

Life of this patent

Liquid crystal display device

Life of this patent

Abstract

Claims20