LIGHTING DEVICE AND LIQUID CRYSTAL DISPLAY DEVICE

Title:

LIGHTING DEVICE AND LIQUID CRYSTAL DISPLAY DEVICE

Document Type and Number:

Japanese Patent JP2012134124

Kind Code:

A

Abstract:

To prevent luminance of an emission face in the vicinity of a light source from becoming high partially and prevent generation of unevenness in brightness.

A deflection structure is provided on a part of an emission face of a light guide plate for deflecting the light reaching the emission face nearly perpendicularly to a direction parallel with the emission face. Practically, light emission can be carried out from the deflection structure at an angle of 30 degrees or less against the emission face. The deflection structure is provided in an outer circumferential region on an incident face side out of outer circumferential regions than an effective light emission area of the light guide plate. As a result, hot spots generated on the emission face in the vicinity of the light incident face become difficult for an observer to visually recognize, and an liquid crystal display device having no brightness unevenness can be realized.

More Like This:

JP2014103008	CONTAINER FOR LIQUID, LIGHTING DEVICE FOR CONTAINER, MEMBER FOR CONTAINER, AND CONTAINER LIGHTING SYSTEM
JP3147547	Rotation fixing device for LED lighting
JP5097259	Lighting equipment

Inventors:

DEJIMA NORIHIRO
TOMITA NAOHIRO
KURIHARA SHIN

Application Number:

JP2011165293A

Publication Date:

July 12, 2012

Filing Date:

July 28, 2011

Export Citation:

Click for automatic bibliography generation Help

Assignee:

SEIKO INSTR INC

International Classes:

F21S2/00; G02F1/13357; F21Y101/02

Domestic Patent References:

JP2007027002A	2007-02-01
JPH09113730A	1997-05-02

Foreign References:

WO2008044417A1

2008-04-17

Attorney, Agent or Firm:

Kentaro Kuhara
Noriaki Uchino
Nobuyuki Kimura

Previous Patent: CHARGER CONNECTOR

Next Patent: CATHODE MATERIAL STRUCTURE AND MANUFACTURING METHOD OF THE SAME