Title:
MULTI-PARTITION DYNAMIC BACKLIGHT DRIVING METHOD AND DISPLAY APPARATUS
Document Type and Number:
WIPO Patent Application WO/2019/019865
Kind Code:
A1
Abstract:
A multi-partition dynamic backlight driving method and a display apparatus. The method comprises: receiving a frame synchronization signal corresponding to an inputted image signal; in response to a change edge of the frame synchronization signal, outputting a first level signal and a second level signal alternately, wherein the total lasting time of the first level signal and the second level signal is 1/m of the lasting time between the change edge and the first change edge before the change edge, the change edge and the first change edge before the change edge are codirectional change edges, and m is a positive integer; and a driving chip receives the first level signal and the second level signal and generates a PWM signal according to the first level signal and the second level signal.
Inventors:
DU QIANG (CN)
ZHANG YUXIN (CN)
CAI TINGKE (CN)
ZHANG YUXIN (CN)
CAI TINGKE (CN)
Application Number:
PCT/CN2018/093847
Publication Date:
January 31, 2019
Filing Date:
June 29, 2018
Export Citation:
Assignee:
QINGDAO HISENSE ELECTRONICS CO LTD (CN)
International Classes:
G09G3/34; G09G3/36
Foreign References:
| CN107195275A | 2017-09-22 | |||
| CN103093727A | 2013-05-08 | |||
| CN103137087A | 2013-06-05 | |||
| CN105489171A | 2016-04-13 | |||
| CN106652919A | 2017-05-10 |
Other References:
See also references of EP 3660830A4
Attorney, Agent or Firm:
TDIP & PARTNERS (CN)
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