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Patent Searching and Data


Title:
BACKLIGHT SYSTEM, DISPLAY DEVICE, AND BACKLIGHT SYSTEM CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2019/102597
Kind Code:
A1
Abstract:
In one mode of the present invention, the backlight system comprises: a plurality of light-emitting elements operating as light sources for a backlight and powered by bus-supplied electric power in which the voltage changes to a plurality of predetermined values; a plurality of series connection switches whereby connections in series among the plurality of light-emitting elements are established or shut-down sequentially; a plurality of parallel connection switches whereby connections in parallel of the plurality of light-emitting elements to the power source are established or shut-down; and a control unit turning on or off the plurality of serial connection switches and the plurality of parallel connection switches according to the voltage value of the bus-supplied electric power.

Inventors:
UKEGAWA TOMOHISA (JP)
Application Number:
JP2017/042275
Publication Date:
May 31, 2019
Filing Date:
November 24, 2017
Export Citation:
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Assignee:
NEC DISPLAY SOLUTIONS LTD (JP)
International Classes:
H05B37/02; G02F1/133
Foreign References:
JP2010272410A2010-12-02
Attorney, Agent or Firm:
TANAI Sumio et al. (JP)
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