IP Library Granted Patent US 7,484,877
Granted Patent B2
US 7,484,877 · App. 11/733,338 · Granted Feb 3, 2009

Light emitting device and liquid crystal device

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 7,484,877
App. No.
11/733,338
Granted
Feb 3, 2009
Kind
B2
Abstract

A light emitting device includes a light source and a light guide body having a light guiding surface from which light emitted from the light source is received and having a light emitting surface from which the received light is emitted. A plurality of rows of light source arrays each formed by a plurality of the light sources are provided on the light guiding surface.

Claims (15)

1. A light emitting device comprising:

a light source; and

a light guide body for receiving light emitted from the light source from a light guiding surface to emit from a light emitting surface; wherein

a plurality of light source arrays provided on the light guiding surface includes a first light source array and a second light source array, the first light source array is provided on a first circuit substrate, the second light source array is provided on a second circuit substrate, and the first circuit substrate and the second circuit substrate are opposed with the first light source array and the second light source array interposed therebetween, and

an edge of the first circuit substrate is fixed on the light emitting surface of the light guide body and an edge of the second circuit substrate is fixed on the surface opposite to the light emitting surface of the light guide body.

2. The light emitting device according to claim 1 , wherein the light sources of the first light source array and the light sources of the second light source array are alternately misaligning in an arrangement direction of the light sources.

3. The light emitting device according to claim 2 , wherein the light sources of the first light source array and the light sources of the second light source array are disposed so as to be partly overlapped when viewed from the array direction of the light sources.

4. The light emitting device according to claim 1 , wherein the first circuit substrate and the second circuit substrate are constituted by one circuit substrate.

5. A liquid crystal device including the light emitting device according to claim 1 and a liquid crystal panel oppositely disposed to the light emitting surface of the light emitting device.

6. A light emitting device comprising:

a light source; and

a light guide body for receiving light emitted from the light source from a light guiding surface to emit from a light emitting surface, wherein a plurality of light source arrays provided on the light guiding surface includes a first light source array and a second light source array, the first light source array is provided on one surface of one circuit substrate, and the second light source array is provided on the other surface of the one circuit substrate, and wherein an edge of the one circuit substrate is fixed to an inner surface of a groove provided on the light guiding surface of the light guide body.

7. A light emitting device comprising:

a light source; and

a light guide body for receiving light emitted from the light source from a light guiding surface to emit from a light emitting surface, wherein a plurality of light source arrays provided on the light guiding surface includes a first light source array and a second light source array, the first light source array is provided on a first circuit substrate, the second light source array is provided on a second circuit substrate, and the first light source array and the second light source array are opposed to each other with the second circuit substrate interposed therebetween, and wherein an edge of the first circuit substrate is fixed on the light emitting surface of the light guide body and an edge of the second circuit substrate is fixed to an inner surface of a groove provided on the light guiding surface of the light guide body.