Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
ILLUMINATION DEVICE, DISPLAY DEVICE, AND TELEVISION RECEIVER
Document Type and Number:
WIPO Patent Application WO/2017/051852
Kind Code:
A1
Abstract:
A backlight device (12), provided with: a plurality of LEDs (17) including a plurality of end-side LEDs (17E) placed at the end sides in the arrangement direction and a plurality of center-side LEDs (17C) placed at the center side in the arrangement direction; a light guide plate (19) extending along the arrangement surface and having a light entry end surface (19b) through which light from the plurality of LEDs (17) enters and a light exit plate surface (19a) through which the light exits; a wavelength conversion part (20) placed so as to extend along the arrangement direction and be interposed between the plurality of LEDs (17) and the light entry end surface (19b), the wavelength conversion part (20) having a phosphor for wavelength-converting the light from the plurality of LEDs (17); and an LED controller (32) for controlling the amount of light emitted by the plurality of LEDs (17) per unit time, the control being such that the amount of light emitted by at least one of the end-side LEDs (17E) is lower than the amount of light emitted by the center-side LEDs (17C).

Inventors:
KAMADA KENTARO
MATSUI KEITARO
HARADA MASANOBU
Application Number:
PCT/JP2016/077977
Publication Date:
March 30, 2017
Filing Date:
September 23, 2016
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
SHARP KK (JP)
International Classes:
F21S2/00; G02F1/13357; H04N9/31; H05B37/02; F21Y115/10
Domestic Patent References:
WO2013145978A12013-10-03
Foreign References:
JP2013218952A2013-10-24
JP2006278125A2006-10-12
Other References:
See also references of EP 3354963A4
Attorney, Agent or Firm:
AKATSUKI UNION PATENT FIRM (JP)
Patent business corporation dawn joint patent firm (JP)
Download PDF: