Invention Grant
- Patent Title: Backlight apparatus, control method therefor, and display apparatus
- Patent Title (中): 背光装置及其控制方法及显示装置
-
Application No.: US13421335Application Date: 2012-03-15
-
Publication No.: US09311862B2Publication Date: 2016-04-12
- Inventor: Masashi Morishita
- Applicant: Masashi Morishita
- Applicant Address: JP Tokyo
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Agency: Cowan, Liebowitz & Latman, P.C.
- Priority: JP2011-062650 20110322; JP2011-271220 20111212
- Main IPC: G09G3/36
- IPC: G09G3/36 ; G09G3/34
Abstract:
A light source unit that uses white light LEDs in a backlight apparatus is provided with a plurality of white light LEDs that can individually provide white light illumination. Each of the white light LED units respectively corresponds to partition areas in the vertical direction of the screen and is illuminated by scanning in sequence in conformity to the display screen of an LCD display unit. LED units that carry out white light display by RGB color mixing are continuously illuminated. In addition, in another embodiment, white light LEDs are continuously illuminated in a low power consumption mode, and ELD units that carry out white light display by RGB color mixing are illuminated by scanning in sequence in conformity to the display screen of the LCD display device.
Public/Granted literature
- US20120242564A1 BACKLIGHT APPARATUS, CONTROL METHOD THEREFOR, AND DISPLAY APPARATUS Public/Granted day:2012-09-27
Information query
IPC分类:
